BROADBAND TECHNOLOGIES INC /DE/
8-K, 1996-06-05
COMMUNICATIONS EQUIPMENT, NEC
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                                    FORM 8-K

                       SECURITIES AND EXCHANGE COMMISSION


                             Washington, D.C. 20549





                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934



         Date of Report (Date of earliest event reported): May 22, 1996




                          BROADBAND TECHNOLOGIES, INC.
             (Exact name of registrant as specified in its charter)


                                    DELAWARE
                 (State or other jurisdiction of incorporation)


       0-21766                                56-1615990
(Commission File Number)            (IRS Employer Identification No.)

4024 Stirrup Creek Drive
Durham, North Carolina                                   27703
(Address of principal executive offices)              (Zip Code)


                                 (919) 544-0015
              (Registrant's telephone number, including area code)

                                    -1-

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ITEM 5.  OTHER EVENTS.

                  On May 22, 1996 the Company closed on the sale of U.S.
$115,000,000 principal amount of 5% Convertible Subordinated Notes due May 15,
2001 (the "Notes"), including the over-allotment option of U.S. $15,000,000
which was exercised in full immediately. Interest on the Notes is payable on May
15 and November 15, commencing on November 15, 1996. The Company received
proceeds from the sale of approximately $111,000,000, net of commissions and
other expenses. The Company intends to use the net proceeds of the sale of the
Notes for working capital and general business purposes. If future events or
opportunities arise which would require the use of cash, the Company may use the
proceeds for purposes not currently intended by the Company.

                   This description is a summary only. A full understanding of
the terms of the Notes financing can only be obtained by reading the exhibits to
this document, which are hereby incorporated by reference herein.

CONVERTIBILITY

                   The Notes are convertible into shares of the Company's Common
Stock at a conversion rate of 24.1080 shares per U.S. $1,000 principal amount of
Notes (equivalent to U.S. $41.480 per share), subject to adjustment. An
aggregate of approximately 2,772,420 shares of Common Stock are issuable upon
conversion of the Notes.

                  The Notes will be convertible into shares of Common Stock of
the Company at any time on or after the 90th day following May 22, 1996 and
prior to the close of business on the maturity date of the Notes at the
conversion price set forth above, unless previously redeemed or repurchased.
Holders of Notes called for redemption or repurchase will be entitled to convert
the Notes to and including, but not after, the close of business on the date
fixed for redemption or repurchase, as the case may be.

OPTIONAL REDEMPTION

                  The Notes may be redeemed at the option of the Company at any
time on or after the close of business on May 15, 1999, in whole or in part.
During the twelve month period beginning May 15, 1999, the redemption price is
102% of principal, plus accrued interest. During the twelve month period
beginning May 15, 2000, the redemption price is 101% of principal, plus accrued
interest. Thereafter, the redemption price is 100% of principal, plus accrued
interest.

REPURCHASE AT OPTION OF HOLDERS UPON CHANGE IN CONTROL

                  In the event of a Change in Control (as defined in the Notes
and related trust indenture), each Holder of Notes may require the Company to
repurchase its Notes, in whole or in part, at a repurchase price of 100% of the
principal amount thereof, plus accrued interest to the repurchase date. The
repurchase price is payable in cash or, at the option of the Company but subject
to the satisfaction of certain conditions on its part,in Common Stock (valued at
95% of the average closing bid prices of the Common Stock for the five trading
days immediately preceding and including the third trading day prior to the
repurchase date).

SUBORDINATION


                                      -2-

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                  The Notes will be subordinated to present and future Senior
Debt (as defined in the Notes and related trust indenture) of the Company and
its subsidiaries. As of March 31, 1996, the aggregate amount of outstanding
Senior Debt was approximately U.S. $218,000. The trust indenture does not limit
the Company's ability to incur Senior Debt or any other indebtedness.

REGISTRATION RIGHTS

                  The Company has agreed to file a shelf registration statement
in respect of the Notes and the Common Stock issuable upon conversion thereof
pursuant to a Registration Rights Agreement within 90 days of May 22, 1996 and
to use its best efforts to have such shelf registration statement declared
effective within 180 days of May 22, 1996. If the Company fails to comply with
certain of its obligations under the Registration Rights Agreement, the interest
rate on the Notes will be increased as liquidated damages as provided in the
Notes and related trust indenture.




ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS.

                  (c) 10.1    Indenture dated as of May 22, 1996, between the
                              Company and Marine Midland Bank, as Trustee

                      10.2    Purchase Agreement dated May 17, 1996 between the
                              Company, Goldman, Sachs & Co. and Bear, 
                              Stearns & Co. Inc.

                      10.3    Registration Rights Agreement dated May 17, 1996 
                              between the Company, Goldman, Sachs & Co. and 
                              Bear, Stearns & Co. Inc.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                         BROADBAND TECHNOLOGIES, INC.



Date:  May ___, 1996                     By:
                                         Timothy K. Oakley
                                         Chief Financial Officer

                                    -3-


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                                  EXHIBIT INDEX


EXHIBIT NO.        DESCRIPTION                                          PAGE NO.

10.1               Indenture dated as of May 22, 1996,
                   between the Company and Marine Midland Bank,
                   as Trustee

10.2               Purchase Agreement dated May 17, 1996
                   between the Company, Goldman, Sachs & Co.
                   and Bear, Stearns & Co. Inc.

10.3               Registration Rights Agreement dated May 17, 1996
                   between the Company, Goldman, Sachs & Co.
                   and Bear, Stearns & Co. Inc.






                                    -4-

<PAGE>







                                    EXHIBIT A







                          BROADBAND TECHNOLOGIES, INC.

               5% CONVERTIBLE SUBORDINATED NOTES DUE MAY 15, 2001

                          REGISTRATION RIGHTS AGREEMENT


                                                                   Dated as of
                                                                   May 17, 1996


Goldman, Sachs & Co.,
Bear, Stearns & Co. Inc.,
c/o Goldman, Sachs & Co.,
85 Broad Street,
New York, New York 10004.

Ladies and Gentlemen:

                  BroadBand Technologies, Inc., a Delaware corporation (the
"Company"), proposes to issue and sell to Goldman, Sachs & Co. and Bear, Stearns
& Co. Inc. (the "Purchasers") upon the terms set forth in a purchase agreement
dated May 17, 1996 (the "Purchase Agreement") between the Purchasers and the
Company, its 5% Convertible Subordinated Notes due May 15, 2001 (the
"Securities"). As an inducement to the Purchasers to enter into the Purchase
Agreement and in satisfaction of a condition to the obligations of the
Purchasers thereunder, the Company agrees with the Purchasers, (i) for the
benefit of the Purchasers and (ii) for the benefit of the holders from time to
time of the Securities and the Common Stock, par value $0.01 per share of the
Company (the "Stock"), issuable upon conversion of the Securities (collectively,
the "Registrable Securities"), including the Purchasers (each of the foregoing a
"Holder" and, together, the "Holders"), as follows:

                  1. DEFINITIONS. Capitalized terms used herein without
definition shall have their respective meanings set forth in or pursuant to the
Purchase Agreement or the Offering Circular, dated May 17, 1996, in respect of
the Securities. As used in this Agreement, the following capitalized defined
terms shall have the following meanings:

                  "Act" or "Securities Act" means the United States Securities
Act of 1933, as amended.

                  "Affiliate" of any specified person means any other person
which, directly or indirectly, is in control of, is controlled by, or is under
common control with such specified person. For purposes of this definition,
control of a person means the power, direct or indirect, to direct or cause the
direction of the management and policies of such person whether by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

                                      -5-

<PAGE>


                  "Commission" means the United States Securities and Exchange
Commission.

                  "DTC" means The Depository Trust Company.

                  "Effectiveness Period" has the meaning set forth in Section
2(b) hereof.

                  "Exchange Act" means the United States Securities Exchange Act
of 1934, as amended.

                  "Managing Underwriters" means the investment banker or
investment bankers and manager or managers that shall administer an underwritten
offering, if any, as set forth in Section 6 hereof.

                  "Person" shall mean an individual, partnership, corporation,
trust or unincorporated organization, or a government or agency or political
subdivision thereof.

                  "Prospectus" means the prospectus included in any Shelf
Registration Statement (including, without limitation, a prospectus that
discloses information previously omitted from a prospectus filed as part of an
effective registration statement in reliance upon Rule 430A under the Act), as
amended or supplemented by any prospectus supplement, with respect to the terms
of the offering of any portion of the Registrable Securities.

                  "Shelf Registration" means a registration effected pursuant to
Section 2 hereof.

                  "Shelf Registration Statement" means a shelf registration
statement of the Company pursuant to the provisions of Section 2 hereof filed
with the Commission which covers some or all of the Registrable Securities, as
applicable, on an appropriate form under Rule 415 under the Act, or any similar
rule that may be adopted by the Commission, amendments and supplements to such
registration statement, including post-effective amendments, in each case
including the Prospectus contained therein, all exhibits thereto and all
material incorporated by reference therein.

                  "underwriter" means any underwriter of Registrable Securities
in connection with an offering thereof under a Shelf Registration Statement.

                  2. SHELF REGISTRATION. (a) The Company shall, within 90 days
following the date of the first original issuance of the Securities (the "Issue
Date"), file with the Commission a Shelf Registration Statement relating to the
offer and sale of the Registrable Securities by the Holders from time to time in
accordance with the methods of distribution elected by such Holders and set
forth in such Shelf Registration Statement and, thereafter, shall use its best
efforts to cause such Shelf Registration Statement to be declared effective
under the Act within 180 days after the Issue Date; PROVIDED, HOWEVER, that no
Holder shall be entitled to have the Registrable Securities held by it covered
by such Shelf Registration unless such Holder is in compliance with Section 3(m)
hereof.

                  Not less than 30 days prior to the filing of the Shelf
Registration Statement, the Company shall give notice of its intention to make
such filing to each of the holders of the Registrable Securities in the same
manner as the Company would give notice to holders of Securities under Section
1.6 of the Indenture. Such notice shall seek a determination from each of such
holders as to whether such holder elects to sell Registrable Securities pursuant
to the Shelf Registration Statement. The Company may require each electing
Holder to furnish to the Company such information as may be required by Section
3(m) hereof. Each such electing Holder agrees to notify

                                      -6-

<PAGE>


the Company as promptly as practicable of any inaccuracy or change in
information previously furnished by such electing Holder to the Company or of
the occurrence of any event in either case as a result of which any Prospectus
included in such Shelf Registration Statement contains or would contain an
untrue statement of a material fact regarding such electing Holder or such
electing Holder's intended method of distribution of such Registrable Securities
or omits to state any material fact regarding such electing Holder or such
electing Holder's intended method of distribution of such Registrable Securities
necessary to make the statements therein, in light of the circumstances then
existing, not misleading, and promptly to furnish to the Company any additional
information required to correct and update any previously furnished information
or required so that such Prospectus shall not contain, with respect to such
electing Holder or the distribution of such Registrable Securities, an untrue
statement of a material fact or omit to state a material fact necessary to make
the statements therein, in light of the circumstances then existing, not
misleading.
                  (b)        The Company shall use its best efforts:

                             (i) To keep the Shelf Registration Statement
                  continuously effective in order to permit the Prospectus
                  forming part thereof to be usable by Holders for a period of
                  three years from the date the Shelf Registration Statement is
                  declared effective or such shorter period that will terminate
                  upon the earlier of the following: (A) when all the Securities
                  covered by the Shelf Registration Statement have been sold
                  pursuant to the Shelf Registration Statement, (B) when all
                  shares of Stock issued upon conversion of any such Securities
                  that had not been sold pursuant to the Shelf Registration
                  Statement have been sold pursuant to the Shelf Registration
                  Statement and (C) when, in the written opinion of independent
                  counsel to the Company, all outstanding Registrable Securities
                  held by persons that are not affiliates of the Company may be
                  resold without registration under the Act pursuant to Rule
                  144(k) under the Act or any successor provision thereto (in
                  any such case, such period being called the "Effectiveness
                  Period"); and

                             (ii) After the effectiveness of the Shelf
                  Registration Statement, promptly upon the request of any
                  Holder, to take any action reasonably necessary to register
                  the sale of any Registrable Securities of such Holder and to
                  identify such Holder as a selling securityholder; provided
                  that the Company need not promptly register the Registrable
                  Securities of any Holder that has elected to sell Registrable
                  Securities pursuant to the notice described above and has
                  failed to comply with Section 3(m) in a timely manner;
                  PROVIDED, FURTHER, that upon compliance by such Holder with
                  Section 3(m), the Company will use its best efforts to include
                  the Registrable Securities of such Holder in the next
                  amendment to the Shelf Registration Statement that it would
                  otherwise have to make.

The Company shall be deemed not to have used its best efforts to keep the Shelf
Registration Statement effective during the requisite period if the Company
voluntarily takes any action that would result in Holders of Registrable
Securities covered thereby not being able to offer and sell any such Registrable
Securities during that period, unless (i) such action is required by applicable
law, or (ii) the continued effectiveness of the Shelf Registration Statement
would require the Company to disclose a material financing, acquisition or other
corporate transaction, and the Board of Directors shall have determined in good
faith that such disclosure is not in the best interests of the Company and its
stockholders, and, in the case of clause (i) above, the Company thereafter
promptly complies with the requirements of paragraph 3(i) below.

                                      -7-

<PAGE>


                  3. REGISTRATION PROCEDURES. In connection with any Shelf
Registration Statement, the following provisions shall apply:

                             (a) The Company shall furnish to the Purchasers,
                  prior to the filing thereof with the Commission, a copy of any
                  Shelf Registration Statement, and each amendment thereof and
                  each amendment or supplement, if any, to the Prospectus
                  included therein and shall use its best efforts to reflect in
                  each such document, when so filed with the Commission, such
                  comments as the Purchasers reasonably may propose.

                             (b) The Company shall take such action as may be
                  necessary so that (i) any Shelf Registration Statement and any
                  amendment thereto and any Prospectus forming part thereof and
                  any amendment or supplement thereto (and each report or other
                  document incorporated therein by reference in each case)
                  complies in all material respects with the Securities Act and
                  the Exchange Act and the respective rules and regulations
                  thereunder, (ii) any Shelf Registration Statement and any
                  amendment thereto does not, when it becomes effective, contain
                  an untrue statement of a material fact or omit to state a
                  material fact required to be stated therein or necessary to
                  make the statements therein not misleading and (iii) any
                  Prospectus forming part of any Shelf Registration Statement,
                  and any amendment or supplement to such Prospectus, does not
                  include an untrue statement of a material fact or omit to
                  state a material fact necessary in order to make the
                  statements, in the light of the circumstances under which they
                  were made, not misleading.

                             (c)(1) The Company shall advise the Purchasers and,
                  in the case of clause (i), the Holders and, if requested by
                  the Purchasers or any such Holder, confirm such advice in
                  writing:

                                    (i) when a Shelf Registration Statement and
                              any amendment thereto has been filed with the
                              Commission and when the Shelf Registration
                              Statement or any post-effective amendment thereto
                              has become effective; and

                                    (ii) of any request by the Commission for
                              amendments or supplements to the Shelf
                              Registration Statement or the Prospectus included
                              therein or for additional information.

                             (2) The Company shall advise the Purchasers and the
                  Holders and, if requested by the Purchasers or any such
                  Holder, confirm such advice in writing of:

                                    (i) the issuance by the Commission of any
                              stop order suspending effectiveness of the Shelf
                              Registration Statement or the initiation of any
                              proceedings for that purpose;

                                    (ii) the receipt by the Company of any
                              notification with respect to the suspension of the
                              qualification of the securities included therein
                              for sale in any jurisdiction or the initiation of
                              any proceeding for such purpose; and
                                      -8-

<PAGE>

                                    (iii) the happening of any event that
                             requires the making of any changes in the Shelf
                             Registration Statement or the Prospectus so that,
                             as of such date, the Shelf Registration Statement
                             and the Prospectus do not contain an untrue
                             statement of a material fact and do not omit to
                             state a material fact required to be stated therein
                             or necessary to make the statements therein (in the
                             case of the Prospectus, in light of the
                             circumstances under which they were made) not
                             misleading (which advice shall be accompanied by an
                             instruction to suspend the use of the Prospectus
                             until the requisite changes have been made).

                             (d) The Company shall use its best efforts to
                  prevent the issuance, and if issued to obtain the withdrawal,
                  of any order suspending the effectiveness of any Shelf
                  Registration Statement at the earliest possible time.

                             (e) The Company shall furnish to each Holder of
                  Registrable Securities included within the coverage of any
                  Shelf Registration Statement, without charge, at least one
                  copy of such Shelf Registration Statement and any
                  post-effective amendment thereto, including financial
                  statements and schedules, and, if the Holder so requests in
                  writing, all reports, other documents and exhibits (including
                  those incorporated by reference).

                             (f) The Company shall, during the Effectiveness
                  Period, deliver to each Holder of Registrable Securities
                  included within the coverage of any Shelf Registration
                  Statement, without charge, as many copies of the Prospectus
                  (including each preliminary Prospectus) included in such Shelf
                  Registration Statement and any amendment or supplement thereto
                  as such Holder may reasonably request; and the Company
                  consents (except during the continuance of any event described
                  in Section 3(c)(2)(iii)) to the use of the Prospectus or any
                  amendment or supplement thereto by each of the selling Holders
                  of Registrable Securities in connection with the offering and
                  sale of the Registrable Securities covered by the Prospectus
                  or any amendment or supplement thereto during the Shelf
                  Registration Period.

                             (g) Prior to any offering of Registrable Securities
                  pursuant to any Shelf Registration Statement, the Company
                  shall register or qualify or cooperate with the Holders of
                  Registrable Securities included therein and their respective
                  counsel in connection with the registration or qualification
                  of such Registrable Securities for offer and sale under the
                  securities or blue sky laws of such jurisdictions as any such
                  Holders reasonably request in writing and do any and all other
                  acts or things necessary or advisable to enable the offer and
                  sale in such jurisdictions of the Registrable Securities
                  covered by such Shelf Registration Statement; PROVIDED,
                  HOWEVER, that in no event shall the Company be obligated to
                  (i) qualify as a foreign corporation or as a dealer in
                  securities in any jurisdiction where it would not otherwise be
                  required to so qualify but for this Section 3(g) or (ii) file
                  any general consent to service of process in any jurisdiction
                  where it is not as of the date hereof then so subject.

                             (h) Unless any Registrable Securities shall be in
                  book-entry only form, the Company shall cooperate with the
                  Holders of Registrable Securities to facilitate the timely
                  preparation and delivery of certificates representing
                  Registrable Securities sold pursuant to any Shelf Registration
                  Statement free of any restrictive legends and in such
                  permitted denominations and registered in such names as
                  Holders may request in connection with the sale of Registrable
                  Securities pursuant to such Shelf Registration Statement.

                                      -9-
<PAGE>

                             (i) Upon the occurrence of any event contemplated
                  by paragraph 3(c)(2)(iii) above, the Company shall promptly
                  prepare a post-effective amendment to any Shelf Registration
                  Statement or an amendment or supplement to the related
                  Prospectus or file any other required document so that, as
                  thereafter delivered to purchasers of the Registrable
                  Securities included therein, the Prospectus will not include
                  an untrue statement of a material fact or omit to state any
                  material fact necessary to make the statements therein, in the
                  light of the circumstances under which they were made, not
                  misleading. If the Company notifies the Holders of the
                  occurrence of any event contemplated by paragraph 3(c)(2)(iii)
                  above, the Holders shall suspend the use of the Prospectus and
                  the disposition of the Securities pursuant to the Shelf
                  Registration Statement until it has received a copy of the
                  supplemented or amended prospectus or until it has been
                  advised that use of the prospectus may be resumed.

                             (j) Not later than the effective date of any Shelf
                  Registration Statement hereunder, the Company shall provide a
                  CUSIP number for the Securities registered under such Shelf
                  Registration Statement.

                             (k) The Company shall use its best efforts to
                  comply with all applicable rules and regulations of the
                  Commission and shall make generally available to their
                  security holders or otherwise provide in accordance with
                  Section 11(a) of the Securities Act as soon as practicable
                  after the effective date of the applicable Shelf Registration
                  Statement an earnings statement satisfying the provisions of
                  Section 11(a) of the Securities Act.

                             (l) The Company shall cause the Indenture to be
                  qualified under the Trust Indenture Act in a timely manner.

                             (m) The Company may require each Holder of
                  Registrable Securities to be sold pursuant to any Shelf
                  Registration Statement to furnish to the Company such
                  information regarding the Holder and the distribution of such
                  Registrable Securities as may be required by applicable law or
                  regulation for inclusion in such Shelf Registration Statement
                  and the Company may exclude from such registration the
                  Registrable Securities of any Holder that fails to furnish
                  such information within a reasonable time after receiving such
                  request.

                             (n) The Company in the event of an underwritten
                  offering, if any, as set forth in Section 6 hereof, shall, if
                  requested, promptly include or incorporate in a Prospectus
                  supplement or post-effective amendment to a Shelf Registration
                  Statement, such information as the Managing Underwriters
                  reasonably agree should be included therein and to which the
                  Company does not reasonably object and shall make all required
                  filings of such Prospectus supplement or post-effective
                  amendment as soon as practicable after they are notified of
                  the matters to be included or incorporated in such Prospectus
                  supplement or post-effective amendment.

                             (o) The Company shall enter into such customary
                  agreements (including an underwriting agreement in customary
                  form in the event of an underwritten offering, if any, as set
                  forth in Section 6 hereof), to take all other appropriate
                  actions in order to expedite or facilitate the registration of
                  the Registrable Securities and to otherwise perform its
                  obligations under this Agreement, and in connection therewith,
                  if an underwriting agreement is entered into, cause the same
                  to contain indemnification provisions and

                                      -10-

<PAGE>


                  procedures substantially identical to those set forth in
                  Section 5 with respect to all parties to be indemnified
                  pursuant to Section 5.

                             (p)    The Company shall:

                                    (i) make reasonably available for inspection
                             by the Holders of Registrable Securities to be
                             registered thereunder, any underwriter
                             participating in any disposition pursuant to such
                             Shelf Registration Statement, and any attorney,
                             accountant or other agent retained by such Holders
                             or any such underwriter all relevant financial and
                             other records, pertinent corporate documents and
                             properties of the Company and its subsidiaries;

                                    (ii) cause the Company's officers, directors
                             and employees to make reasonably available for
                             inspection all relevant information reasonably
                             requested by such Holders or any such underwriter,
                             attorney, accountant or agent in connection with
                             any such Shelf Registration Statement, in each
                             case, as is customary for similar due diligence
                             examinations; PROVIDED, HOWEVER, that any
                             information that is designated in writing by the
                             Company, in good faith, as confidential at the time
                             of delivery of such information shall be kept
                             confidential by such Holders or any such
                             underwriter, attorney, accountant or agent, unless
                             such disclosure is made in connection with a court
                             proceeding or required by law, or such information
                             becomes available to the public generally or
                             through a third party without an accompanying
                             obligation of confidentiality; and PROVIDED FURTHER
                             that the foregoing inspection and information
                             gathering shall be coordinated on behalf of the
                             Holders and the other parties entitled thereto by
                             one counsel designated by and on behalf of such
                             Holders and other parties;

                                    (iii) in the event of an underwritten
                             offering, if any, as set forth in Section 6 hereof,
                             make such representations and warranties to the
                             underwriters, if any, in form, substance and scope
                             as are customarily made by the Company to
                             underwriters in primary underwritten offerings and
                             covering matters including, but not limited to,
                             those set forth in the Purchase Agreement;

                                    (iv) in the event of an underwritten
                             offering, if any, as set forth in Section 6 hereof,
                             obtain opinions of counsel to the Company and
                             updates thereof (which counsel and opinions (in
                             form, scope and substance) shall be reasonably
                             satisfactory to the Managing Underwriters, if any)
                             addressed to the underwriters, if any, covering
                             such matters as are customarily covered in opinions
                             requested in underwritten offerings and such other
                             matters as may be reasonably requested by such
                             underwriters (it being agreed that the matters to
                             be covered by such opinion or written statement by
                             such counsel delivered in connection with such
                             opinions shall include in customary form, without
                             limitation, as of the effective date of the Shelf
                             Registration Statement or most recent
                             post-effective amendment thereto, as the case may
                             be, the absence from such Shelf Registration
                             Statement and the prospectus included therein, as
                             then amended or supplemented, including the
                             documents incorporated by reference therein, of an
                             untrue statement of a material fact or the omission
                             to state therein a material fact required to be
                             stated therein or necessary to make the statements
                             therein not misleading;

                                      -11-

<PAGE>

                                    (v) in the event of an underwritten
                             offering, if any, as set forth in Section 6 hereof,
                             obtain "cold comfort" letters and updates thereof
                             from the independent public accountants of the
                             Company (and, if necessary, any other independent
                             public accountants of any subsidiary of the Company
                             or of any business acquired by the Company for
                             which financial statements and financial data are,
                             or are required to be, included in the Shelf
                             Registration Statement), addressed to each such
                             Holder of Registrable Securities registered
                             thereunder (only if such Holder has provided such
                             letter, representations or documentation, if any,
                             required for such letter to be so addressed) and
                             the named underwriters in customary form and
                             covering matters of the type customarily covered in
                             "cold comfort" letters in connection with primary
                             underwritten offerings;

                                    (vi) deliver such documents and certificates
                             as may be reasonably requested by any such Holders
                             and the Managing Underwriters, if any, including
                             those to evidence compliance with Section 3(i) and
                             with any customary conditions contained in the
                             underwriting agreement or other agreement entered
                             into by the Company.

                  The foregoing actions set forth in clauses (iii), (iv), (v)
                  and (vi) of this Section 3(p) shall be performed at each
                  closing under any underwritten offering to the extent required
                  thereunder.

                             (q) The Company will use its best efforts to cause
                  the Stock issuable upon conversion of the Securities to be
                  listed for quotation on the Nasdaq National Market or other
                  stock exchange or trading system on which the Stock primarily
                  trades on or prior to the effective date of any Shelf
                  Registration Statement hereunder.

                             (r) In the event that any broker-dealer registered
                  under the Exchange Act shall underwrite any Registrable
                  Securities or participate as a member of an underwriting
                  syndicate or selling group or "assist in the distribution"
                  (within the meaning of the Rules of Fair Practice and the
                  By-Laws of the National Association of Securities Dealers,
                  Inc. ("NASD")) thereof, whether as a Holder of such
                  Registrable Securities or as an underwriter, a placement or
                  sales agent or a broker or dealer in respect thereof, or
                  otherwise, assist such broker-dealer in complying with the
                  requirements of such Rules and By-Laws, including, without
                  limitation, by (A) such Rules or By-Laws, including Schedule E
                  thereto, shall so require, engaging a "qualified independent
                  underwriter" (as defined in Schedule E) to participate in the
                  preparation of the Shelf Registration Statement relating to
                  such Registrable Securities and to exercise usual standards of
                  due diligence in respect thereto, (B) indemnifying any such
                  qualified independent underwriter to the extent of the
                  indemnification of underwriters provided in Section 5 hereof
                  and (C) providing such information to such broker-dealer as
                  may be required in order for such broker-dealer to comply with
                  the requirements of the Rules of Fair Practice of the NASD.

                             (s) The Company shall use its best efforts to take
                  all other steps necessary to effect the registration of the
                  Registrable Securities covered by the Shelf Registration
                  Statement contemplated hereby and to otherwise perform its
                  obligations hereunder.

                  4. REGISTRATION EXPENSES. Except as otherwise provided in
Section 6, the Company shall bear all fees and expenses incurred in connection
with the performance of its obligations under Sections 2 and 3 hereof and shall
bear or reimburse the Holders for the reasonable fees and disbursements of one
firm of counsel designated by the Company and reasonably acceptable 


                                      -12-

<PAGE>


to the Holders of a majority of the Registrable Securities covered by the Shelf
Registration Statement to act as counsel therefor in connection therewith.

                  5. INDEMNIFICATION AND CONTRIBUTION. (a) In connection with
the Shelf Registration Statement, the Company shall indemnify and hold harmless
the Purchasers, each Holder, each underwriter who participates in an offering of
Registrable Securities, each person, if any, who controls any of such parties
within the meaning of Section 15 of the Securities Act or Section 20 of the
Exchange Act and each of their respective directors, officers, employees,
trustees and agents, as follows:

                             (i) against any and all loss, liability, claim,
                  damage and expense whatsoever, including any amounts paid in
                  settlement of any investigation, litigation, proceeding or
                  claim, joint or several, as incurred, arising out of any
                  untrue statement or alleged untrue statement of a material
                  fact contained in any Shelf Registration Statement (or any
                  amendment thereto) covering Registrable Securities, including
                  all documents incorporated therein by reference, or the
                  omission or alleged omission therefrom of a material fact
                  required to be stated therein or necessary to make the
                  statements therein not misleading or arising out of any untrue
                  statement or alleged untrue statement of a material fact
                  contained in any Prospectus (or any amendment or supplement
                  thereto) or the omission or alleged omission therefrom of a
                  material fact necessary in order to make the statements
                  therein, in the light of the circumstances under which they
                  were made, not misleading; PROVIDED, that the Company shall
                  not be liable under this clause (i) for any settlement of any
                  action effected without its written consent, which consent
                  shall not be unreasonably withheld; and

                             (ii) against any and all expenses whatsoever, as
                  incurred (including reasonable fees and disbursements of
                  counsel chosen by the Holders, such Holder or any underwriter
                  (except to the extent otherwise expressly provided in Section
                  5(c) hereof)), reasonably incurred in investigating, preparing
                  or defending against any litigation, or any investigation or
                  proceeding by any court or governmental agency or body,
                  commenced or threatened, or any claim whatsoever based upon
                  any such untrue statement or omission, or any such alleged
                  untrue statement or omission, to the extent that any such
                  expense is not paid under subparagraph (i) of this Section
                  5(a);

PROVIDED that this indemnity shall not apply to any loss, liability, claim,
damage or expense to the extent arising out of an untrue statement or omission
or alleged untrue statement or omission made in reliance upon and in conformity
with written information furnished to the Company by the Purchasers, such Holder
or any underwriter in writing expressly for use in the Shelf Registration
Statement (or any amendment thereto) or any Prospectus (or any amendment or
supplement thereto); PROVIDED FURTHER that the foregoing indemnity with respect
to any untrue statement or omission or alleged untrue statement or omission made
in a preliminary prospectus shall not inure to the benefit of any underwriter
(or any person controlling such underwriter) from whom the person asserting any
such loss, liability, claim, damage or expense purchased any of the Registrable
Securities that are the subject thereof if such person was not sent or given a
copy of the Prospectus (or the Prospectus as amended or supplemented), at or
prior to the written confirmation of the sale of such Registrable Securities to
such person and the untrue statement or omission or alleged untrue statement or
omission made in such preliminary prospectus was corrected in the Prospectus (or
the Prospectus as amended or supplemented). Any amounts advanced by the Company
to an indemnified party pursuant to this Section 5 as a result of such losses
shall be returned to the Company if it shall be finally determined by such a
court in a 

                                      -13-

<PAGE>


judgment not subject to appeal or final review that such indemnified party was
not entitled to indemnification by the Company.

                  (b) Each Holder agrees, severally and not jointly, to
indemnify and hold harmless the Company, the Purchasers, each underwriter who
participates in an offering of Registrable Securities and the other selling
Holders and each of their respective directors, officers (including each officer
of the Company who signed the Shelf Registration Statement), employees, trustees
and agents and each Person, if any, who controls the Company, the Purchasers,
any underwriter or any other selling Holder within the meaning of Section 15 of
the Securities Act or Section 20 of the Exchange Act, from and against any and
all loss, liability, claim, damage and expense whatsoever described in the
indemnity contained in Section 5(a)(i) and (ii) hereof, as incurred, but only
with respect to untrue statements or omissions, or alleged untrue statements or
omissions, made in the Shelf Registration Statement (or any amendment thereto)
or any Prospectus (or any amendment or supplement thereto) in reliance upon and
in conformity with written information furnished to the Company by such selling
Holder expressly for use in the Shelf Registration Statement (or any amendment
thereto) or any Prospectus (or any amendment or supplement thereto); PROVIDED,
HOWEVER, that, no such Holder shall be liable for any claims hereunder in excess
of the amount of net proceeds received by such Holder from the sale of
Registrable Securities pursuant to the Shelf Registration Statement.

                  (c) Each indemnified party shall give prompt notice to each
indemnifying party of any action commenced against it in respect of which
indemnity may be sought hereunder, enclosing a copy of all papers served on such
indemnified party, but failure to so notify an indemnifying party shall not
relieve it of any liability which it may have to the indemnified party otherwise
than on account of this indemnity agreement. An indemnifying party may
participate at its own expense in the defense of any such action. If an
indemnifying party so elects within a reasonable time after receipt of such
notice, such indemnifying party, jointly with any other indemnifying party, may
assume the defense of such action with counsel chosen by it and approved by the
indemnified party or parties defendant in such action, PROVIDED that if any such
indemnified party reasonably determines that there may be legal defenses
available to such indemnified party which are different from or in addition to
those available to such indemnifying party or that representation of such
indemnifying party and any indemnified party by the same counsel would present a
conflict of interest, then such indemnifying party or parties shall not be
entitled to assume such defense. If an indemnifying party is not entitled to
assume the defense of such action as a result of the proviso to the preceding
sentence, counsel for such indemnifying party shall be entitled to conduct the
defense of such indemnifying party and counsel for each indemnified party or
parties shall be entitled to conduct the defense of such indemnified party or
parties. If an indemnifying party assumes the defense of an action in accordance
with and as permitted by the provisions of this paragraph, such indemnifying
party shall not be liable for any fees and expenses of counsel for the
indemnified parties incurred thereafter in connection with such action. In no
event shall the indemnifying party or parties be liable for the fees and
expenses of more than one counsel (in addition to any local counsel) separate
from its own counsel for all indemnified parties in connection with any one
action or separate but similar or related actions in the same jurisdiction
arising out of the same general allegations or circumstances.

                  (d) In order to provide for just and equitable contribution in
circumstances in which the indemnity provision agreement provided for in this
Section 5 is for any reason held to be unavailable to the indemnified parties
although applicable in accordance with its terms, the Company, the Purchasers
and the Holders shall contribute to the aggregate losses, liabilities, claims,
damages and expenses of the nature contemplated by said indemnity agreement
incurred 

                                      -14-

<PAGE>


by the Company, the Purchasers and the Holders, as incurred; PROVIDED
that no Person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) shall be entitled to contribution from any
Person that was not guilty of such fraudulent misrepresentation. As between the
Company, the Purchasers and the Holders, such parties shall contribute to such
aggregate losses, liabilities, claims, damages and expenses of the nature
contemplated by such indemnity agreement in such proportion as shall be
appropriate to reflect the relative fault of the Company, on the one hand, and
the Purchasers and the Holders, on the other hand, with respect to the
statements or omissions which resulted in such loss, liability, claim, damage or
expense, or action in respect thereof, as well as any other relevant equitable
considerations. The relative fault of the Company, on the one hand, and of the
Purchasers and the Holders, on the other hand, shall be determined by reference
to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Company, on the one hand, or by or on
behalf of the Purchasers or the Holders, on the other, and the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission. the Company, the Purchasers and the Holders of the
Registrable Securities agree that it would not be just and equitable if
contribution pursuant to this Section 5 were to be determined by pro rata
allocation or by any other method of allocation that does not take into account
the relevant equitable considerations. For purposes of this Section 5(d), each
director, officer, employee, trustee, agent and Person, if any, who controls the
Purchasers or a Holder within the meaning of Section 15 of the Securities Act or
Section 20 of the Exchange Act shall have the same rights to contribution as the
Purchasers or such Holder, and each director, officer, employee, trustee and
agent of the Company, and each Person, if any, who controls the Company within
the meaning of Section 15 of the Securities Act or Section 20 of the Exchange
Act shall have the same rights to contribution as the Company. No party shall be
liable for contribution with respect to any action, suit, proceeding or claim
settled without its written consent.

                  6. UNDERWRITTEN OFFERING. The Holders of Registrable
Securities covered by the Shelf Registration Statement who desire to do so may
sell such Registrable Securities in a firm underwritten offering and the Company
will use their best efforts to facilitate such underwritten offering. In any
such underwritten offering, the investment banker or bankers and manager or
managers that will administer the offering will be selected by, and the
underwriting arrangements with respect thereto will be approved by, the Holders
of a majority of the Registrable Securities to be included in such offering;
PROVIDED, HOWEVER, that (i) such investment bankers and managers and
underwriting arrangements must be reasonably satisfactory to the Company and
(ii) the Company shall not be obligated to allow more than one underwritten
offering during the Effectiveness Period. No Holder may participate in any
underwritten offering contemplated hereby unless such Holder (a) agrees to sell
such Holder's Registrable Securities in accordance with any approved
underwriting arrangements, (b) completes and executes all reasonable
questionnaires, powers of attorney, indemnities, underwriting agreements,
lock-up letters and other documents required under the terms of such approved
underwriting arrangements and (c) at least 20% of the outstanding Registrable
Securities are included in such underwritten offering. The Holders participating
in any underwritten offering shall be responsible for any expenses customarily
borne by selling securityholders, including underwriting discounts and
commissions and fees and expenses of counsel to the selling securityholders and
shall reimburse the Company for the fees and disbursements of their counsel,
their independent public accountants and any printing expenses incurred in
connection with such underwritten offerings. Notwithstanding the foregoing or
the provisions of Section 3(n) hereof, upon receipt of a request from the
Managing Underwriter or a representative of Holders of a majority of the
Registrable Securities outstanding to prepare and file an amendment or
supplement to the Shelf Registration Statement and Prospectus in 


                                      -15-

<PAGE>

connection with an underwritten offering, the Company may delay the filing of
any such amendment or supplement for up to 90 days if the Company in good faith
has a valid business reason for such delay.

                  7.         MISCELLANEOUS.

                  (a) OTHER REGISTRATION RIGHTS. The Company may grant
registration rights that would permit any Person that is a third party the right
to piggy-back on any registration statement relating to an underwritten offering
as described in Section 6, PROVIDED that if the Managing Underwriter, if any, of
such offering delivers an opinion to the selling Holders that the total amount
of securities which they and the holders of such piggy-back rights intend to
include in any Shelf Registration Statement is so large as to materially
adversely affect the success of such offering (including the price at which such
securities can be sold), then the amount, the number or kind of securities to be
offered for the account of the holders of such piggy-back rights and the selling
Holders will be reduced pro rata to the extent necessary to reduce the total
amount of securities to be included in such offering to the amount, number or
kind recommended by the Managing Underwriter.

                  (b) AMENDMENTS AND WAIVERS. The provisions of this Agreement,
including the provisions of this sentence, may not be amended, qualified,
modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given, unless the Company has obtained the written
consent of the Purchasers.

                  (c) NOTICES. All notices and other communications provided for
or permitted hereunder shall be made in writing by hand-delivery, first-class
mail, telex, telecopier, or air courier guaranteeing overnight delivery:

                             (1) if to a Holder, at the most current address
                        given by such Holder to the Company in accordance with
                        the provisions of this Section 7(c);

                             (2) if to the Purchasers, initially at the address
                        set forth in the Purchase Agreement; and

                             (3) if to the Company, initially at its address set
                        forth in the Purchase Agreement.

All such notices and communications shall be deemed to have been duly given when
received.

                  The Purchasers or the Company by notice to the other may
designate additional or different addresses for subsequent notices or
communications.

                  (d) SUCCESSORS AND ASSIGNS. This Agreement shall inure to the
benefit of and be binding upon the successors and assigns of each of the parties
and the Holders, including, without the need for an express assignment or any
consent by the Company thereto, subsequent Holders of Registrable Securities.
The Company hereby agrees to extend the benefits of this Agreement to any Holder
of Registrable Securities and any such Holder may specifically enforce the
provisions of this Agreement as if an original party hereto.

                  (e) COUNTERPARTS. This agreement may be executed in any number
of counterparts and by the parties hereto in separate counterparts, each of
which when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

                                      -16-

<PAGE>


                  (f) HEADINGS. The headings in this agreement are for
convenience of reference only and shall not limit or otherwise affect the
meaning hereof.

                  (g) GOVERNING LAW. This agreement shall be governed by and
construed in accordance with the laws of the State of New York, without giving
effect to any provisions relating to conflicts of laws.


                                      -17-

<PAGE>

                  (h) SEVERABILITY. In the event that any one or more of the
provisions contained herein, or the application thereof in any circumstances, is
held invalid, illegal or unenforceable in any respect for any reason, the
validity, legality and enforceability of any such provision in every other
respect and of the remaining provisions hereof shall not be in any way impaired
or affected thereby, it being intended that all of the rights and privileges of
the parties shall be enforceable to the fullest extent permitted by law.
                  Please confirm that the foregoing correctly sets forth the
agreement between the Company and you.

                                Very truly yours,


                               BROADBAND TECHNOLOGIES, INC.


                               By:_______________________________
                                  Name:   Salim A. Bhatia
                                  Title:    Chief Executive Officer


The foregoing Registration Rights Agreement is hereby confirmed and accepted as
of the date first above written.


Goldman, Sachs & Co.
Bear, Stearns & Co. Inc.


By:  _______________________________
         (Goldman, Sachs & Co.)


                                      -18-



<PAGE>

                          BroadBand Technologies, Inc.

               5% Convertible Subordinated Notes due May 15, 2001


                               PURCHASE AGREEMENT



                                                                  May 17, 1996

Goldman, Sachs & Co.
Bear, Stearns & Co. Inc.
c/o Goldman, Sachs & Co.,
85 Broad Street,
New York, New York 10004.

Ladies and Gentlemen:

          BroadBand Technologies, Inc., a Delaware corporation (the "Company"),
proposes, subject to the terms and conditions stated herein, to issue and sell
to the Purchasers named in Schedule I hereto (the "Purchasers") an aggregate of
$100,000,000 principal amount of the 5% Convertible Subordinated Notes due May
15, 2001, convertible into Common Stock, par value $0.01 per share ("Stock"), of
the Company, specified above (the "Firm Securities"), and, at the election of
the Purchasers, up to an aggregate of $15,000,000 additional principal amount of
such Notes (the "Optional Securities"). The Firm Securities and the Optional
Securities which the Purchasers elect to purchase pursuant to Section 2 hereof
are herein collectively called the "Securities". As used herein, the term
"Purchasers" shall be deemed to include Goldman Sachs International ("GSI"),
which is acting as Goldman, Sachs & Co.'s selling agent in making certain
resales of the Securities pursuant to Section 3 hereof.

          The Purchasers and other holders (including subsequent transferees) of
Securities (and any holders of shares of Stock which have been then issued upon
conversion of such Securities) (collectively, the "Registrable Securities") will
be entitled to the benefits of the registration rights agreement, dated the date
hereof (the "Registration Rights Agreement") among the Company and the
Purchasers, in the form attached hereto as Exhibit A. Pursuant to the
Registration Rights Agreement, the Company will agree to file with the
Securities and Exchange Commission (the "Commission") under the circumstances
set forth therein a shelf registration statement pursuant to Rule 415 under the
Securities Act of 1933, as amended (the "Act") relating to the resale of (i)
such Securities and (ii) the shares of Stock initially issuable upon conversion
of 


                                      -19-

<PAGE>


such Securities by holders thereof, and to use its best efforts to cause such
shelf registration statement to be declared effective.

    1. The Company represents and warrants to, and agrees with, each of the
Purchasers that:

                      (a) An offering circular dated May 17, 1996 (including the
                  international supplement thereto, the "Offering Circular") has
                  been prepared in connection with the offering of the
                  Securities and the shares of Stock issuable upon conversion
                  thereof. Any reference herein to the Offering Circular shall
                  be deemed to refer to and include the Company's Annual Report
                  on Form 10-K for the year ended December 31, 1995 (as amended
                  by the Company's Form 10-KA filed with the Commission on May
                  1, 1996 (the "Form 10-KA")) including certain portions of the
                  Proxy Statement for the Annual Meeting of Shareholders on May
                  22, 1996 incorporated therein by reference, and Quarterly
                  Report on Form 10-Q for the quarter ended March 31, 1996 (the
                  "10-Q"), each of which is attached to and made a part of the
                  Offering Circular. The Company's Annual Report on Form 10-K
                  for the year ended December 31, 1995 (including the Form 10-KA
                  and all documents incorporated by reference therein) and the
                  10-Q (collectively, the "Exchange Act Reports"), when they
                  were filed with the Commission, conformed in all material
                  respects to the applicable requirements of the United States
                  Securities Exchange Act of 1934, as amended (the "Exchange
                  Act") and the applicable rules and regulations of the
                  Commission thereunder. The Exchange Act Reports, when they
                  were so filed, did not contain an untrue statement of a
                  material fact or omit to state a material fact necessary in
                  order to make the statements therein, in light of the
                  circumstances under which they were made, not misleading. The
                  Offering Circular and any amendments or supplements thereto
                  did not and will not, as of their respective dates, contain an
                  untrue statement of a material fact or omit to state a
                  material fact necessary in order to make the statements
                  therein, in light of the circumstances under which they were
                  made, not misleading; provided, however, that this
                  representation and warranty shall not apply to any statements
                  or omissions made in reliance upon and in conformity with
                  information furnished in writing to the Company by you
                  expressly for use therein;

                      (b) The Company does not own or control, directly or
                  indirectly, any corporation, association or other entity. The
                  Company is a corporation duly organized, validly existing, and
                  in good standing under the laws of its jurisdiction of
                  incorporation, with full corporate power and authority, and
                  all necessary consents, authorizations, approvals, orders,
                  licenses, certificates, and permits of and from, and
                  declarations and filings with, all federal, state, local, and
                  other governmental authorities and all courts and other
                  tribunals, to own, lease, license, and use its respective
                  properties and assets and to carry on the business in the
                  manner described in the Offering Circular (except for such
                  consents, authorizations, approvals, orders, licenses,
                  certificates, permits, declarations, and filings which the
                  failure to have obtained, individually or in the aggregate,
                  does not and will not have a material adverse effect upon the
                  financial condition, results of operations, business,
                  properties, or assets of the Company, taken as a whole). The
                  Company is duly qualified to do business and is in good
                  standing in every jurisdiction in which its ownership,
                  leasing, licensing, or use of property and assets or the
                  conduct of its business makes such qualification necessary,
                  except where the failure to be so qualified or in good
                  standing (considering all 

                                      -20-

<PAGE>

                  such failures together) does not and will not have a material
                  adverse effect upon the financial condition, results of
                  operations, business, properties, or
                  assets of the Company;

                      (c) The authorized capital stock of the Company consists
                  of 30,000,000 shares of Common Stock, of which 13,210,311
                  shares are outstanding and 7,500,000 shares of Convertible
                  Preferred Stock of which no shares are outstanding. Each
                  outstanding share of Common Stock, validly authorized, validly
                  issued, fully paid, and nonassessable, has not been, or will
                  not be, issued and is not, or will not be, owned or held in
                  violation of any preemptive rights of stockholders. There is
                  no commitment, plan or arrangement to issue, and no
                  outstanding option, warrant, or other right calling for the
                  issuance of, any share of capital stock of the Company or any
                  securities or other instrument which by its terms is
                  convertible into, exercisable for, or exchangeable for capital
                  stock of the Company, except as properly described in the
                  Offering Circular and except for options granted since
                  December 31, 1996. There is outstanding no security or other
                  instrument which by its terms is convertible into or
                  exchangeable for capital stock of the Company, except as
                  properly described in the Offering Circular.

                      (d) The financial statements of the Company included in
                  the Offering Circular fairly present, in all material
                  respects, with respect to the Company, the financial position,
                  the results of operations, and the other information purported
                  to be shown therein at the respective dates and for the
                  respective periods to which they apply. In all material
                  respects, such financial statements have been prepared in
                  accordance with generally accepted accounting principles
                  consistently applied throughout the periods involved, are
                  correct and complete, and are in accordance with the books and
                  records of the Company. The accountants whose reports on the
                  audited financial statements are included in the Offering
                  Circular are, and during the periods covered by their reports
                  included in the Offering Circular were, independent certified
                  public accountants with respect to the Company within the
                  meaning of the Act and the regulations of the Commission
                  thereunder. There has at no time been a material adverse
                  change in the financial condition, results of operations,
                  business, properties, assets or prospects of the Company from
                  the latest information set forth in the Offering Circular,
                  except as properly described in the Offering Circular;

                      (e) There is no litigation, arbitration, claim,
                  governmental or other proceeding (formal or informal), or
                  investigation pending or, to the knowledge of the Company,
                  threatened, or in prospect (or any basis therefor known to the
                  Company) with respect to the Company or any of its operations,
                  business, properties, or assets except as properly described
                  in the Offering Circular or such as individually or in the
                  aggregate do not now have and are not reasonably expected in
                  the future to have to have a material adverse effect upon the
                  financial condition, results of operations, business,
                  properties, or assets of the Company. The Company is not in
                  violation of, or in default with respect to, any law, rule,
                  regulation, order, judgment, or decree except as properly
                  described in the Offering Circular or such as in the aggregate
                  do not now have and are not reasonably expected in the future
                  to have a material adverse effect upon the financial
                  condition, results of operations, business, properties, or
                  assets of the Company; nor is the Company required to take any
                  action in order to avoid any such violation or default;

                      (f) The Company does not have any ownership interest,
                  directly or indirectly, in any real property. The Company has
                  good title to all properties and assets which the Offering
                  Circular indicates are owned by it, free and clear of all
                  liens, security interests, pledges, charges, encumbrances, and
                  mortgages (except as properly described in the Offering
                  Circular or such as in the aggregate do not now have and are
                  not reasonably expected in 

                                      -21-

<PAGE>


                  the future to have a material adverse effect upon the
                  financial condition, results of operations, business,
                  properties, or assets of the Company). No real property
                  leased, licensed, or used by the Company lies in an area which
                  is or, to the knowledge of the Company, will
                  be subject to zoning, use, or building code restrictions which
                  would prohibit, and no state of facts relating to the action
                  or inaction of another person or entity or his or its
                  ownership, leasing, licensing, or use of any real or personal
                  property exists or will exist which would prevent, the
                  continued effective leasing, licensing, or use of such real
                  property in the business of the Company as presently conducted
                  or as the Offering Circular indicates it contemplates
                  conducting (except as properly described in the Offering
                  Circular or such as in the aggregate do not now have and will
                  not in the future have a material adverse effect upon the
                  financial condition, results of operations, business,
                  properties, or assets of the Company);

                      (g) The Company possesses such authority, certificates,
                  and permits issued by the appropriate state, federal, or
                  foreign regulatory agencies or bodies necessary to conduct the
                  business now operated by it, except for such authority,
                  certificates, and permits the absence of which, singly or in
                  the aggregate, would not have a material adverse effect on the
                  financial condition, results of operations, business,
                  properties, or assets of the Company; and the Company has not
                  received any notice of proceedings relating to the revocation
                  or modification of any such authority, certificate, or permit
                  which, singly or in the aggregate, if the subject of an
                  unfavorable decision, ruling, or finding, would materially
                  affect the financial condition, results of operations,
                  business, properties, assets, or future prospects of the
                  Company;

                      (h) Neither the Company nor, to the Company's knowledge,
                  any other party is now or is expected by the Company to be in
                  violation or breach of, or in default with respect to,
                  complying with any material provision of any contract,
                  agreement, instrument, lease or license which is material to
                  the Company, and each such contract, agreement, instrument,
                  lease or license is in full force and is the legal, valid, and
                  binding obligation of the Company and, to the Company's
                  knowledge, the other parties thereto and is enforceable
                  against the Company and, to the Company's knowledge, against
                  other parties thereto in accordance with its terms, subject,
                  as to enforcement, to bankruptcy, insolvency, reorganization
                  and other laws of general applicability relating to or
                  affecting creditors' rights and to general equity principles.
                  The Company enjoys peaceful and undisturbed possession under
                  all leases and licenses under which it is operating. The
                  Company is not a party to or bound by any contract, agreement,
                  instrument, lease, license, arrangement, or understanding, or
                  subject to any charter or other restriction, which has had or
                  is reasonably expected in the future to have a material
                  adverse effect on the financial condition, results of
                  operations, business, properties, assets, or future prospects
                  of the Company. The Company is not in violation or breach of,
                  or default with respect to, any term of its Certificate of
                  Incorporation or bylaws;

                      (i) All patents, patent applications, trademarks,
                  trademark applications, trade names, service marks,
                  copyrights, franchises, and other intangible properties and
                  assets (all of the foregoing being herein called
                  "Intangibles") that the Company owns or has pending, or under
                  which it is licensed, are in good standing and uncontested,
                  except as properly described in the Offering Circular. There
                  is no right under any Intangible necessary to the business of
                  the Company as presently conducted or as the Offering Circular
                  indicates it contemplates conducting, except as properly
                  described in the Offering Circular. The Company has not
                  infringed, is not infringing, and has not received notice of
                  infringement with respect to asserted Intangibles of others,
                  except for such infringement or alleged 

                                      -22-
<PAGE>

                  infringement that has not had, or cannot be reasonably
                  expected to have, a material adverse effect on the financial
                  condition, results of operations, business, properties,
                  assets, or future prospects of the Company. To the knowledge
                  of the Company, there is no infringement by others of
                  Intangibles of the Company, except
                  as properly described in the Offering Circular. To the
                  knowledge of the Company, there is no Intangible of others
                  which has had or may in the future have a material adverse
                  effect on the financial condition, results of operations,
                  business, properties, assets, or future prospects of the
                  Company;

                      (j) None of the Company or any other person associated
                  with or acting on behalf of the Company, including, without
                  limitation, any director, officer, agent, or employee of the
                  Company has, directly or indirectly, while acting on behalf of
                  the Company: used any corporate funds for unlawful
                  contributions, gifts, entertainment, or other unlawful
                  expenses relating to political activity; made any unlawful
                  payment to foreign or domestic government officials or
                  employees or to foreign or domestic political parties or
                  campaigns from corporate funds; violated any provision of the
                  Foreign Corrupt Practices Act of 1977, as amended; or made any
                  other unlawful payment;

                      (k) The Company has all requisite power and authority to
                  execute, deliver, and perform this Agreement. All necessary
                  corporate proceedings of the Company have been duly taken to
                  authorize the execution, delivery, and performance of this
                  Agreement by the Company. This Agreement has been duly
                  authorized, executed, and delivered by the Company. No
                  consent, authorization, approval, order, license, certificate,
                  or permit of or from, or declaration or filing with, any
                  federal, state, local, or governmental authority or any court
                  or other tribunal is required by the Company for the
                  execution, delivery, or performance of this Agreement by the
                  Company. No consent of any party to any material contract,
                  agreement, instrument, lease, license, arrangement, or
                  understanding to which the Company is a party, or to which any
                  of its properties or assets are subject, is required for the
                  execution, delivery, or performance of this Agreement; and the
                  execution, delivery, and performance of this Agreement will
                  not violate, result in a breach of, conflict with, or (with or
                  without the giving of notice or the passage of time or both)
                  entitle any party to terminate or call a default under any
                  such contract, agreement, instrument, lease, license,
                  arrangement, or understanding, or violate or result in a
                  breach of any term of the Certificate of Incorporation or
                  bylaws of the Company, or violate, result in a breach of, or
                  conflict with any law, rule, regulation (except for such law,
                  rule, or regulation the violation of which would not have a
                  material adverse effect on the financial condition, results of
                  operations, business, properties, or assets of the Company),
                  order, judgment, or decree binding on the Company or to which
                  any of its operations, business, properties, or assets is
                  subject;

                      (l) The Securities have been duly authorized and, when
                  issued, authenticated and delivered pursuant to this
                  Agreement, will have been duly executed, issued and delivered
                  and will constitute valid and legally binding obligations of
                  the Company entitled to the benefits provided by the indenture
                  to be dated as of May 22, 1996 (the "Indenture") between the
                  Company and Marine Midland Bank, as Trustee (the "Trustee"),
                  under which they are to be issued, which will be substantially
                  in the form previously delivered to you; the Indenture has
                  been duly authorized and, when executed and delivered by the
                  Company and the Trustee, the Indenture will constitute a valid
                  and legally binding instrument, enforceable in accordance with
                  its terms, subject, as to enforcement, to bankruptcy,
                  insolvency, reorganization and other laws of general
                  applicability relating to or affecting creditors' rights and
                  to general equity principles; and the Securities and the
                  Indenture will conform to the descriptions thereof in the
                  Offering Circular and will be in substantially the form
                  previously delivered to you;

                                      -23-

<PAGE>


                      (m) Subsequent to the respective dates as of which
                  information is given in the Offering Circular and except as
                  otherwise properly described in the Offering Circular, the
                  Company has not (A) issued any securities or incurred any
                  liability or obligation, primary or contingent, for borrowed
                  money, (B) entered into any material transaction not in the
                  ordinary course of business, or (C) declared or paid any
                  dividend on its capital stock;

                      (n) Neither the Company nor any of its officers,
                  directors, or affiliates (as defined in the regulations under
                  the Act) has taken or will take, directly or indirectly, prior
                  to the termination of the offering contemplated by this
                  Agreement, any action designed to stabilize or manipulate the
                  price of any security of the Company or which has caused or
                  resulted in, or which might in the future reasonably be
                  expected to cause or result in, stabilization or manipulation
                  of the price of any security of the Company to facilitate the
                  sale or resale of any of the Securities;

                      (o) Each of the  directors  and  officers  of the  Company
                  listed  in  Schedule  II  hereto  has  entered  into a written
                  agreement  with the  Company  in the form of  Exhibit B hereto
                  (each such  agreement,  a "Lock-up  Agreement"),  and executed
                  originals of each  Lock-up  Agreement  have been  delivered to
                  you;

                      (p) The Company has filed all necessary federal, state,
                  and foreign income and franchise tax returns and has paid all
                  taxes shown as due thereon; and there is no tax deficiency
                  that has been, or to the knowledge of the Company might be,
                  asserted against the Company or any of its respective
                  properties or assets that would materially and adversely
                  affect the financial condition, results of operations,
                  business, properties or assets of the Company;

                      (q)  There  are no  outstanding  loans,  advances  (except
                  normal  advances for business  expenses in the ordinary course
                  of business),  or guarantees of indebtedness by the Company to
                  or for the benefit of any of the  officers or directors of the
                  Company or any of the members of the  families of any of them,
                  except as properly disclosed in the Offering Circular;

                      (r) There are no rights of return or other agreements
                  between the Company and any customer of the Company which
                  would cause any sales reflected in the Company's financial
                  statements for the year ended December 31, 1995 and the three
                  months ended March 31, 1996 included in the Offering Circular
                  to fail to qualify as sales in accordance with generally
                  accepted accounting principles or the Company's revenue
                  recognition policy as reflected in the audited financial
                  statements included in the Offering Circular;

                      (s) The Company maintains a system of internal accounting
                  controls sufficient to provide reasonable assurances that (i)
                  transactions are executed in accordance with management's
                  general or specific authorizations; (ii) transactions are
                  recorded as necessary to permit preparation of financial
                  statements in conformity with generally accepted accounting
                  principles and to maintain accountability for assets; (iii)
                  access to assets is permitted only in accordance with
                  management's general or specific authorization; and (iv) the
                  recorded accountability for assets is compared with existing
                  assets at reasonable intervals and appropriate action is taken
                  with respect to any differences;

                      (t) None of the transactions contemplated by this
                  Agreement (including, without limitation, the use of the
                  proceeds from the sale of the Securities) will violate or
                  result in a violation of Section 7 of the Exchange Act, or any
                  regulation promulgated thereunder, 

                                      -24-
<PAGE>

                  including,  without limitation,  Regulations G, T, U, and X of
                  the Board of Governors of the Federal Reserve System;

                      (u) When the Securities are issued and delivered pursuant
                  to this Agreement, the Securities will not be of the same
                  class (within the meaning of Rule 144A under the Act) as
                  securities which are listed on a national securities exchange
                  registered under Section 6 of the Exchange Act or quoted in a
                  U.S. automated inter-dealer quotation system;

                      (v) The  Company  is subject to Section 13 or 15(d) of the
                  Exchange Act;

                      (w) The  Company is not,  and after  giving  effect to the
                  offering  and  sale  of  the   Securities,   will  not  be  an
                  "investment   company",   or  an  entity  "controlled"  by  an
                  "investment  company", as such terms are defined in the United
                  States  Investment  Company  Act  of  1940,  as  amended  (the
                  "Investment Company Act");

                      (x) Neither the Company, nor any affiliate of the Company,
                  nor any person acting on its or their behalf, has, with
                  respect to the Securities or shares of Stock issuable upon
                  conversion thereof sold in the United States, offered or sold
                  the Securities or shares of Stock issuable upon conversion
                  thereof by means of any general solicitation or general
                  advertising within the meaning of Rule 502(c) under the Act
                  or, with respect to Securities or shares of Stock issuable
                  upon conversion thereof sold in reliance on Rule 903 under the
                  Act, by means of any directed selling efforts within the
                  meaning of Rule 903 under the Act and the Company, any
                  affiliate of the Company and any person acting on its or their
                  behalf has complied with and will implement the offering
                  restriction requirements of such Rule 903;

                      (y) Within the preceding six months, neither the Company
                  nor any person acting on behalf of the Company has offered or
                  sold, directly or indirectly, in the United States or to any
                  U.S. person (as such terms are defined in Regulation S under
                  the Securities Act) any Securities, any Stock or any security
                  substantially similar to the Securities or the Stock issued by
                  the Company. The Company will take reasonable precautions
                  designed to ensure that any offer or sale, direct or indirect,
                  in the United States or to any U.S. person of any Securities,
                  any Stock or any security substantially similar to the
                  Securities or the Stock issued by the Company, within six
                  months subsequent to the date on which the distribution of the
                  Securities has been completed (as notified to the Company by
                  Goldman, Sachs & Co.), is made under restrictions and other
                  circumstances reasonably designed not to affect the status of
                  the offer and sale of the Securities and the Stock issuable
                  upon the conversion thereof in the United States and to U.S.
                  persons contemplated by Annex I to this Agreement as
                  transactions exempt from the registration requirements of the
                  Securities Act;

                      (z) Neither the  Company  nor any of its  affiliates  does
                  business  with the  government  of Cuba or with any  person or
                  affiliate  located  in Cuba  within  the  meaning  of  Section
                  517.075, Florida Statutes;

                      (aa) None of the holders of outstanding shares of capital
                  stock of the Company and no other person has or will have any
                  preemptive or other rights to purchase, subscribe for or
                  otherwise acquire (i) the shares of Stock to be issued upon
                  conversion of the Securities or any rights to such shares or
                  (ii) as a result of or in connection with the transactions
                  contemplated by the Indenture or this Agreement, any other
                  capital stock of the Company or rights thereto;

                      (bb) Assuming the accuracy of the representations and
                  warranties of the Purchasers set forth herein, it is not
                  necessary in connection with the offer, sale and delivery of
                  the Securities to the Purchasers, or in connection with the
                  initial resale of the Securities by the

                                      -25-

<PAGE>


                  Purchasers in accordance with this Agreement,  to register the
                  Securities under the Act or to qualify the Indenture under the
                  Trust Indenture Act of 1939, as amended (the "TIA");

                       (cc) The  Securities  to be sold  pursuant  to Rule  144A
                  under the Act have been designated PORTAL eligible  securities
                  in accordance  with the rules and  regulations of the National
                  Association of Securities Dealers, Inc.;

                      (dd) The Registration Rights Agreement has been duly
                  authorized, executed and delivered by the Company and
                  constitutes the valid and binding obligation of the Company
                  enforceable against the Company in accordance with the terms
                  thereof, subject, as to enforcement, to bankruptcy,
                  insolvency, reorganization and other laws of general
                  applicability relating to or affecting creditors' rights and
                  to general equity principles;

                      (ee) Other than as set forth or contemplated in the
                  Offering Circular, there are no persons with registration
                  rights or other similar rights to have any securities of the
                  Company (other than the Securities and the shares of Stock
                  initially issuable upon the conversion thereof) registered
                  under any registration statement under the Securities Act
                  (including the registration statement contemplated by the
                  Registration Rights Agreement);

                      (ff) The Company (i) is in compliance with any and all
                  applicable foreign, federal, state and local laws and
                  regulations relating to the protection of human health and
                  safety, the environment or hazardous or toxic substances or
                  wastes, pollutants or contaminants ("Environmental Laws"),
                  (ii) has received all permits, licenses or other approvals
                  required under applicable Environmental Laws to conduct its
                  business and (iii) is in compliance with all terms and
                  conditions of any such permit, license or approval, except
                  where such noncompliance with Environmental Laws, failure to
                  receive required permits, licenses or other approvals or
                  failure to comply with the terms and conditions of such
                  permits, licenses or approvals would not, singly or in the
                  aggregate, have a material adverse effect on the Company; and

                       (gg)  The  Company  is not and has not  been at any  time
                  within its  previous  five tax  years,  a United  States  Real
                  Property  Holding Company within the meaning of Section 897 of
                  the United States Internal Revenue Code of 1986, as amended.

     2. Subject to the terms and conditions herein set forth, (a) the Company
agrees to issue and sell to each of the Purchasers, and each of the Purchasers
agrees, severally and not jointly, to purchase from the Company, at a purchase
price of 96.75% of the principal amount thereof, plus accrued interest, if any,
from May 22, 1996 to the First Time of Delivery hereunder, the principal amount
of Firm Securities set forth opposite the name of such Purchaser in Schedule I
hereto, and (b) in the event and to the extent that Goldman, Sachs & Co. on
behalf of the Purchasers shall exercise the election to purchase Optional
Securities as provided below, the Company agrees to issue and sell to each of
the Purchasers, and each of the Purchasers agrees, severally and not jointly, to
purchase from the Company, at the same purchase price set forth in clause (a) of
this Section 2, the aggregate principal amount of the Optional Securities as to
which such election shall have been exercised (to be adjusted by you so as to
eliminate denominations of less than U.S.$1,000) determined by multiplying such
aggregate principal amount of Optional Securities by a fraction, the numerator
of which is the maximum aggregate principal amount of Optional Securities which
such Purchaser is entitled to purchase as set forth opposite the name of such
Purchaser in Schedule I hereto and the denominator of which is the maximum
aggregate principal amount of Optional Securities which all of the Purchasers
are entitled to purchase hereunder.

                                      -26-

<PAGE>


     The Company  hereby grants to the Purchasers the right to purchase at their
election up to $15,000,000 aggregate principal amount of Optional Securities, at
the  purchase  price  set forth in clause  (a) of the  first  paragraph  of this
Section 2, for the sole purpose of covering  over-allotments in the sale of Firm
Securities.  Any such election to purchase Optional  Securities may be exercised
by written notice from you to the Company,  given within a period of 30 calendar
days after the date of this  Agreement,  setting forth the  aggregate  principal
amount  of  Optional  Securities  to be  purchased  and the date on  which  such
Optional  Securities  are to be delivered,  as determined by you but in no event
earlier than the First Time of Delivery or, unless you and the Company otherwise
agree in writing earlier than two or later than ten business days after the date
of such notice.

     3. The  Purchasers  propose to offer the Securities for sale upon the terms
and conditions  set forth in this  Agreement and the Offering  Circular and each
Purchaser hereby represents and warrants to, and agrees with the Company that:

     (a) It will offer and sell the Securities only to: (i) persons who it
reasonably believes are "qualified institutional buyers" ("QIBs") within the
meaning of Rule 144A under the Act in transactions meeting the requirements of
Rule 144A, (ii) institutions which it reasonably believes are "accredited
investors" ("Institutional Accredited Investors") within the meaning of Rule 501
under the Act or, (iii) upon the terms and conditions set forth in Annex I to
this Agreement; provided, however, that offers and sales of Securities pursuant
to clause (iii) of this paragraph may be made by Goldman, Sachs & Co. through
GSI;

     (b) It is an Institutional Accredited Investor; and

     (c) It will  not  offer  or sell  the  Securities  by any  form of  general
solicitation  or general  advertising,  including but not limited to the methods
described in Rule 502(c) under the Act.

     4. (a) Except as set forth in the next paragraph, the Securities to be
purchased by each Purchaser hereunder will be represented (i) in the case of
Securities to be initially resold pursuant to Rule 144A under the Act, by one or
more definitive global Securities in book-entry form which will be deposited by
or on behalf of the Company with The Depository Trust Company ("DTC") or its
designated custodian and (ii) in the case of Securities to be initially resold
pursuant to Regulation S under the Act, by one or more definitive global
Securities in book-entry form which will be deposited by or on behalf of the
Company with DTC or its designated custodian for the benefit of Morgan Guaranty
Trust Company of New York (Brussels office), as operator of the Euroclear
System, or Cedel Bank, Societe Anonyme, or both, for credit to the account of
GSI, unless otherwise directed by GSI. The Company will deliver the Securities
to Goldman, Sachs & Co., for the account of each Purchaser, against payment by
or on behalf of such Purchaser of the purchase price therefor by certified or
official bank check or checks, or by wire transfer, payable to the order of the
Company in Federal (same day) funds, by causing DTC to credit the Securities to
the respective accounts of Goldman, Sachs & Co. and GSI, as the case may be, at
DTC. The Company will cause the certificates representing the Securities to be
made available to Goldman, Sachs & Co. for checking at least twenty-four hours
prior to the Time of Delivery (as defined below) with respect thereto at the
office of DTC or its designated custodian (the "Designated Office"). The time
and date of such delivery and payment shall be, with respect to the Firm
Securities, 9:30 a.m., New York City time, on May 22, 1996, or such other time
and date as Goldman, Sachs & Co. and the Company may agree upon in writing and,
with respect to the Optional Securities, 9:30 a.m., New York City time, on the
date specified by Goldman, Sachs & Co. in the written notice given by Goldman,
Sachs & Co. of the Purchasers' election to purchase such Optional Securities, or
such other time and date as Goldman, Sachs & Co. and the Company may agree upon
in writing. Such time and date for delivery of the Firm Securities is herein
called the 

                                      -27-

<PAGE>


"First  Time of  Delivery",  such  time and date for  delivery  of the  Optional
Securities, if not the First Time of Delivery, is herein called the "Second Time
of Delivery",  and each such time and date for delivery is herein called a "Time
of Delivery".

     Such Securities, if any, as Goldman, Sachs & Co. may request upon at least
forty-eight hours' prior notice to the Company (such request to include the
authorized denominations and the names in which they are to be registered),
shall be delivered in definitive certificated form, by or on behalf of the
Company to Goldman, Sachs & Co. for the account of certain of the Purchasers,
against payment by or on behalf of such Purchaser of the purchase price therefor
by certified or official bank check or checks, or by wire transfer, payable to
the order of the Company in Federal (same day) funds. The Company will cause the
certificates representing the Securities to be made available for checking and
packaging at least twenty-four hours prior to the Time of Delivery with respect
thereto at the office of Goldman, Sachs & Co., 85 Broad Street, New York, New
York 10004 (the "New York Office").

     (b) The documents to be delivered at each Time of Delivery by or on behalf
of the parties hereto pursuant to Section 7 hereof, including the cross-receipt
for the Securities and any additional documents requested by the Purchasers
pursuant to Section 7(m) hereof, will be delivered at such time and date at the
offices of Sullivan & Cromwell, 125 Broad Street, New York, New York 10004 (the
"Closing Location"), and the Securities will be delivered at the Designated
Office and, if applicable, the New York Office, all at such Time of Delivery. A
meeting will be held at the Closing Location at 3:00 p.m., New York City time,
on the New York Business Day next preceding each Time of Delivery, at which
meeting the final drafts of the documents to be delivered pursuant to the
preceding sentence will be available for review by the parties hereto. For the
purposes of this Section 4, "New York Business Day" shall mean each Monday,
Tuesday, Wednesday, Thursday and Friday which is not a day on which banking
institutions in New York are generally authorized or obligated by law or
executive order to close.

     5. The Company agrees with each of the Purchasers:

     (a) To prepare the Offering Circular in a form approved by you; and to make
no  amendment  or any  supplement  to  the  Offering  Circular  which  shall  be
disapproved by you promptly after reasonable notice thereof;

     (b) To furnish the Purchasers with four copies of the Offering Circular and
each amendment or supplement thereto signed by an authorized officer of the
Company with the independent accountants' report(s) in the Offering Circular,
and any amendment or supplement containing amendments to the financial
statements covered by such report(s), signed by the accountants, and additional
copies thereof in such quantities as you may from time to time reasonably
request, and if, at any time prior to the expiration of nine months after the
date of the Offering Circular, any Purchaser has not resold any of the
Securities purchased by it from the Company hereunder and any event shall have
occurred as a result of which the Offering Circular as then amended or
supplemented would include an untrue statement of a material fact or omit to
state any material fact necessary in order to make the statements therein, in
the light of the circumstances under which they were made when such Offering
Circular is delivered, not misleading, or, if for any other reason it shall be
necessary or desirable during such same period to amend or supplement the
Offering Circular, to notify you and upon your request to prepare and furnish
without charge to each Purchaser and to any dealer in securities as many copies
as you may from time to time reasonably request of an amended Offering Circular
or a supplement to the Offering Circular which will correct such statement or
omission or effect such compliance;

     (c) (i) During the period beginning from the date hereof and continuing to
and including the date 90 days after the first Time of Delivery, not to offer,
sell, contract to sell or otherwise 

                                      -28-

<PAGE>


dispose  of,  except  as  provided  hereunder,  any  securities  of the  Company
substantially similar to the Securities or the Stock,  including but not limited
to any  securities  that  are  convertible  into or  exchangeable  for,  or that
represent  the  right  to  receive,  Stock  or any  such  substantially  similar
securities,  except (a) pursuant to the Company's stock option or purchase plans
existing as of the date hereof or pursuant to options or warrants outstanding as
of the date  hereof or (b) as  consideration  for  acquisitions  of  businesses,
properties or assets,  provided that (except with respect to an aggregate of not
more than 25,000  shares of Common  Stock  issued in  consideration  of all such
acquisitions)  the offerees,  purchasers or other transferees of any such shares
shall  agree  in  writing  to  restrictions  substantially  identical  to  those
contained in this  subsection;and  (ii) that it will use  reasonable  efforts to
cause each person who has entered into a Lock-up  Agreement to comply therewith,
will not grant any  waivers or  consents to  non-compliance  therewith  and will
enforce its rights under each such  agreement;  in each case,  unless and to the
extent that it shall have obtained your prior written consent;

     (d) To use its best  efforts  to have the  shares  of Stock  issuable  upon
conversion of the Securities listed on the Nasdaq National Market and to use its
best efforts to maintain such listing so long as any of the Securities,  and the
shares of Stock issuable upon conversion thereof, are outstanding;

     (e) To use the net proceeds  received by it from the sale of the Securities
pursuant to this  Agreement in the manner  specified  in the  Offering  Circular
under the caption "Use of Proceeds";

     (f) Not to be or become, at any time prior to the expiration of three years
after the Time of Delivery,  an open-end  investment  company,  unit  investment
trust,  closed-end investment company or face-amount certificate company that is
or is required to be registered under Section 8 of the Investment Company Act;

     (g) At any time when the Company is not subject to Section 13 or 15(d) of
the Exchange Act, for the benefit of holders from time to time of Securities and
the Stock issuable upon conversion thereof, to furnish at its expense, upon
request, to holders of Securities and the Stock issuable upon conversion thereof
and prospective purchasers thereof information satisfying the requirements of
subsection (d)(4)(i) of Rule 144A under the Act;

     (h) During the period of three years after the latest Time of Delivery, the
Company will not, and will use its best efforts to not permit any "affiliates"
(as defined in Rule 144 under the Act or any successor provision thereto), to
resell (x) any Securities which constitute "restricted securities" under Rule
144 or (y) any shares of Stock into which the Securities have been converted
under the Indenture which constitute "restricted securities" under Rule 144,
that in either case have been reacquired by any of them;

     (i) Promptly from time to time to take such action as you may reasonably
request to qualify such Securities and the Stock issuable upon conversion
thereof for offering and sale under the securities laws of such states,
commonwealths, territories and possessions in the United States as you may
reasonably request and to comply with such laws so as to permit the continuance
of sales and dealings therein in such jurisdictions for as long as may be
necessary to complete the distribution of such Securities and the Stock issuable
upon conversion thereof, provided that in connection therewith the Company shall
not be required to qualify as a foreign corporation or to file a general consent
to service of process in any jurisdiction;

     (j) To reserve and keep  available at all times as a part of its authorized
but unissued capital stock, free of preemptive  rights,  shares of Stock for the
purpose of enabling  the Company to satisfy any  obligations  to issue shares of
Stock upon conversion of the Securities;

                                      -29-

<PAGE>


     (k) Until such time as any Security or any Stock issuable upon conversion
thereof is registered under the Securities Act pursuant to the Registration
Rights Agreement and transferred pursuant to the registration statement
contemplated thereby, to include a legend on the Securities and the Stock
issuable upon the conversion thereof to the effect set forth under "Notice to
Investors" in the Offering Circular;

     (l) During a period of five years from the date of the Offering Circular,
to furnish to you, upon request, copies of all reports mailed to stockholders,
together with the exhibits thereto, and copies of any reports filed with the
Commission or any national securities exchange on which any class of securities
of the Company is listed, together with the exhibits thereto; and

     (m) If any Securities are initially resold pursuant to Regulation D under
the Securities Act and upon written notification thereof to the Company by
Goldman, Sachs & Co., to file with the Commission, not later than 15 days after
the First Time of Delivery, five copies of a notice on Form D (one of which will
be manually signed by a person duly authorized by the Company); to otherwise
comply with the requirements of Rule 503 under the Act; and to furnish promptly
to you evidence of each such required timely filing (including a copy thereof).

     6. The Company  covenants and agrees with the several  Purchasers  that the
Company will pay or cause to be paid the following:  (i) the fees, disbursements
and expenses of the Company's  counsel and accountants and all other expenses of
the Company in  connection  with the issue of the  Securities  and the issue and
listing of the Stock  issuable upon  conversion  thereof,  the  preparation  and
delivery  of  the  Securities  in  global  and  definitive  certificated  forms,
preparation and delivery of certificates  representing  shares of Stock issuable
upon the  conversion  of the  Securities,  the  preparation  and printing of the
Offering Circular and any amendments and supplements thereto and the mailing and
delivering of copies  thereof to the  Purchasers  and dealers;  (ii) the cost of
printing or producing this Agreement,  the Indenture,  the  Registration  Rights
Agreement,  any Blue  Sky and  Legal  Investment  Memoranda,  closing  documents
(including any compilations  thereof) and any other documents in connection with
the offering,  purchase, sale and delivery of the Securities; (iii) the fees and
expenses  of the  Trustee  and  any  agent  of the  Trustee  and  the  fees  and
disbursements  of counsel for the Trustee and any such agent in connection  with
the  Indenture  and the  Securities;  (iv) the fees and  expenses of DTC and any
other  depositary  used in connection with the Securities and of any transfer or
conversion  agent or registrar  for the  Securities  or the Stock  issuable upon
conversion  of  the  Securities;  (vi)  all  expenses  in  connection  with  the
qualification of the Securities for trading in the PORTAL System of the National
Association  of Securities  Dealers,  Inc. and the listing of the Stock issuable
upon conversion of the Securities on the NASDAQ National Market;  (vii) fees and
expenses of any paying agent,  conversion agent and registrar agent with respect
to the Securities and the shares of Stock issuable upon the conversion  thereof,
as the case may be; (viii) fees, if any,  charged by securities  rating services
for  rating  the   Securities;   (ix)  all  expenses  in  connection   with  the
qualification  of the  Securities  and the  shares  of Stock  issuable  upon the
conversion of the Securities for offering and sale under state  securities  laws
as provided in Section  5(i) hereof,  including  the fees and  disbursements  of
counsel  for  the  Purchasers  in  connection  with  such  qualification  and in
connection with the Blue Sky and legal investment surveys not to exceed $10,000;
(x) all fees and  expenses  in  connection  with the filing and  maintenance  of
effectiveness of the registration  statement to be filed by the Company pursuant
to the  Registration  Rights  Agreement  (including the fees and expenses of any
counsel to any holder of Registrable Securities as set forth in the Registration
Rights  Agreement);  and (xi) all  other  costs  and  expenses  incident  to the
performance  of the  Company's  obligations  hereunder  which are not  otherwise
specifically  provided for in this Section  including  any expenses  incurred in
connection  with complying  with Section 5(g) hereof;  and to indemnify and hold
harmless the Purchasers from any documentary  stamp or similar issue tax and any
related 

                                      -30-

<PAGE>


interest or penalties on the issue,  sale or delivery of the  Securities  to the
Purchasers which are or may be due. It is understood,  however,  that, except as
provided in this Section and Sections 8 and 11 hereof,  the Purchasers  will pay
all of their  own  costs  and  expenses,  including  the fees of their  counsel,
transfer  taxes on resale of any of the  Securities  by it, and any  advertising
expenses connected with any offers they may make.

     7. The obligations of the Purchasers hereunder at each Time of Delivery
shall be subject, in their discretion, to the condition that all representations
and warranties and other statements of the Company herein are, at and as of such
Time of Delivery, true and correct, the condition that the Company shall have
performed all of its obligations hereunder theretofore to be performed, and the
following additional conditions:

     (a) Sullivan & Cromwell, counsel for the Purchasers, shall have furnished
to you such opinion or opinions, dated such Time of Delivery, with respect to
the incorporation of the Company, the validity of the Indenture, the Securities,
the shares of Stock issuable upon conversion of the Securities, the Offering
Circular and other related matters as you may reasonably request, and such
counsel shall have received such papers and information as they may reasonably
request to enable them to pass upon such matters. In rendering such opinion or
opinions, such counsel may rely as to all matters governed by North Carolina law
upon the opinion referred to in subsection (b) of this Section;

     (b) Petree Stockton,  L.L.P., counsel for the Company, shall have furnished
to you their written opinion, dated such Time of Delivery, in form and substance
satisfactory to you, to the effect that:

                      (i) The Company has been duly organized and is a validly
                  existing corporation under the laws of Delaware, with full
                  corporate power and corporate authority to own, lease,
                  license, and use its properties and assets and to conduct its
                  business in the manner described in the Offering Circular; and
                  to the knowledge of such counsel the Company has no
                  subsidiaries.

                      (ii) The Company is duly qualified to do business and is
                  in good standing in each state in which the ownership,
                  leasing, licensing, or use of property and assets or the
                  conduct of business makes such qualification necessary and in
                  which the failure to so qualify, considering all such failures
                  together, would have a material adverse effect on the
                  financial condition, results of operations, business,
                  properties, or assets of the Company.

                      (iii) The Company has an authorized share capitalization
                  as set forth in the Offering Circular, and the certificates
                  for the Stock issuable upon conversion of the Securities
                  comply in all respects with Delaware law and have been duly
                  approved by the Board of Directors of the Company. Each
                  outstanding share of capital stock of the Company is validly
                  authorized, validly issued, fully paid, and nonassessable, has
                  been issued in compliance with the registration or
                  qualification requirements of federal and state securities law
                  or qualifies for an exemption from such requirements, and has
                  not been issued and is not owned or held in violation of any
                  preemptive right of shareholders. The shares of Stock
                  initially issuable upon conversion of the Securities have been
                  duly and validly authorized and reserved for issuance and,
                  when issued and delivered in accordance with the provisions of
                  the Securities and the Indenture, will be duly and validly
                  issued and fully paid and non-assessable, and will conform to
                  the description of the Stock contained in the Offering
                  Circular. To the knowledge of such counsel, there is no
                  commitment, plan, or arrangement to issue, and no outstanding
                  option, warrant, or other right calling for the issuance of,
                  any share of capital stock of the Company or any security or
                  other instrument which by its terms is convertible into,
                  exercisable for, or exchangeable for capital stock of 

                                      -31-

<PAGE>


                  the  Company,  except as properly  described  in the  Offering
                  Circular  and except for options  granted  since  December 31,
                  1995. To the knowledge of such counsel,  there is  outstanding
                  no  security  or  other  instrument  which  by  its  terms  is
                  convertible into, exercisable for, or exchangeable for capital
                  stock of the  Company,  except as  properly  described  in the
                  Offering Circular.

                      (iv) To the knowledge of such counsel, there is no
                  litigation, arbitration, claim, governmental or other
                  proceeding (formal or informal), or investigation pending or
                  threatened with respect to the Company or any of its
                  operations, businesses, properties or assets, except as
                  properly described in the Offering Circular or such as
                  individually or in the aggregate do not now have and are not
                  reasonably expected in the future to have a material adverse
                  effect upon the financial condition, results of operations,
                  business, properties or assets of the Company.

                      (v) To the knowledge of such counsel,  neither the Company
                  nor any other party is now or is expected by the Company to be
                  in material violation or breach of, or in default with respect
                  to,  any  material  provision  of  any  contract,   agreement,
                  instrument,  lease,  license,  arrangement,  or  understanding
                  which is material to the Company.

                      (vi) The Company is not in  violation  or breach of, or in
                  default  with  respect  to,  any  term of its  Certificate  of
                  Incorporation or bylaws.

                      (vii) The Company has all requisite corporate power and
                  corporate authority to execute, deliver and perform this
                  Agreement. All necessary corporate proceedings of the Company
                  have been taken to authorize the execution, delivery, and
                  performance of this Agreement by the Company. This Agreement
                  has been duly authorized, executed, and delivered by the
                  Company. No consent, authorization, approval, order, license,
                  certificate, or permit of or firm, or declaration or filing
                  with, any federal, state, local, or other governmental
                  authority or any court or other tribunal is required by the
                  Company for the execution, delivery, or performance of this
                  Agreement by the Company, except such as may be required under
                  the Act in connection with the shares of Stock issuable upon
                  conversion of the Securities. Such opinion may state that
                  counsel is not representing the Company in respect of "blue
                  sky" matters. No consent of any party to any material
                  contract, agreement, instrument, lease, license, arrangement,
                  or understanding, known to such counsel, to which the Company
                  is a party or to which any of its properties or assets are
                  subject, is required for the execution, delivery, or
                  performance of this Agreement; and the execution and delivery
                  of this Agreement will not, and this Agreement may be
                  performed in a manner that does not, violate, result in a
                  breach of, conflict with, or (with or without the giving of
                  notice or the passage of time or both) entitle any party to
                  terminate or call a default under any such contract,
                  agreement, instrument, lease, license, arrangement, or
                  understanding known to such counsel, or violate or result in a
                  breach of any term of the Certificate of Incorporation or
                  bylaws of the Company, or to the knowledge of such counsel
                  violate, result in a breach of, or conflict with any law,
                  rule, regulation (except for such law, rule, or regulation,
                  the violation of which would not have a material adverse
                  effect on the Company), order, judgment, or decree binding on
                  the Company or to which any of its operations, businesses,
                  properties, or assets are subject.

                      (viii) All of the Securities issued at each Time of
                  Delivery have been duly authorized, executed, issued and
                  delivered and constitute valid and legally binding obligations
                  of the Company entitled to the benefits provided by the
                  Indenture and the Securities and the Indenture conform in all
                  material respects to the descriptions thereof in the Offering
                  Circular.

                                      -32-

<PAGE>


                      (ix) The Indenture has been duly authorized, executed and
                  delivered by the Company and constitutes a valid and legally
                  binding obligation of the Company, enforceable in accordance
                  with its terms, subject to bankruptcy, insolvency, fraudulent
                  transfer, reorganization, moratorium and similar laws of
                  general applicability relating to or affecting creditors'
                  rights and to general equity principles; and the Registration
                  Rights Agreement has been duly authorized, executed and
                  delivered by the Company.

                      (x) Insofar as statements in the Offering Circular purport
                  to summarize the provisions of laws, rules, regulations,
                  orders, judgments, decrees, contracts, agreements,
                  instruments, leases, or licenses (other than the statements
                  under the captions "Risk Factors--Lack of Protection from
                  Proprietary Rights," "Business--Patents and Protection of
                  Other Proprietary Information," "Risk Factors--Regulatory
                  Matters," "Business--Recent Developments--Telecommunications
                  Reform Act," "Business--Regulations" and other statements in
                  the Offering Circular concerning telecommunications matters)
                  such statements have been prepared or reviewed by such counsel
                  and, to such counsel's knowledge, accurately reflect the
                  provisions purported to be summarized and are correct in all
                  material respects.

                      (xi) To the knowledge of such counsel, except as described
                  in the Offering Circular, the Company possesses all authority,
                  material certificates, and material permits issued by the
                  appropriate state, federal, and foreign regulatory agencies or
                  bodies necessary to conduct its business, in the manner
                  described in the Offering Circular, and to the knowledge of
                  such counsel, the Company has not received any notice of any
                  proceeding relating to the revocation or modification of any
                  such authority, material certificate, or material permit
                  which, singly or in the aggregate, if the subject of an
                  unfavorable decision, ruling, or finding, would have a
                  material adverse effect on the financial condition, results of
                  operations, business, properties, or assets of the Company.

                      (xii) On the basis of the participation of such counsel in
                  conferences with officers and other representatives of the
                  Company, representatives of, and counsel for, the Purchasers,
                  and representatives of the independent public accountants for
                  the Company, at which the contents of the Offering Circular
                  and related matters were discussed, but without independent
                  verification by such counsel of the accuracy, completeness, or
                  fairness of the statements contained in the Offering Circular,
                  or any amendment or supplement thereto, such counsel shall
                  state that nothing has come to the attention of such counsel
                  that leads them to believe that (except for financial
                  statements and numbers derived from the financial statements
                  as to which such counsel need not express belief) the Offering
                  Circular, as amended or supplemented, if applicable, contained
                  as of its date or contains as of such Time of Delivery any
                  untrue statement of a material fact or omitted or omits, as
                  the case may be, to state a material fact necessary in order
                  to make the statements therein, in the light of the
                  circumstances under which they were made, not misleading.

                      (xiii) To the best of such counsel's knowledge, no holders
                  of Common  Stock or other  securities  of the Company have any
                  registration  rights with  respect to Common  Stock  except as
                  properly described in the Offering Circular.

                      (xiv) The Exchange Act Reports (other than the financial
                  statements and related schedules therein and numbers derived
                  from such financial statements and schedules, as to which such
                  counsel need express no opinion), when they were filed with
                  the Commission, complied as to form in all material respects
                  with the requirements of the Exchange Act, and the rules and
                  regulations of the Commission thereunder; and such 

                                      -33-

<PAGE>


                  counsel has no reason to believe  that any of such  documents,
                  when they were so filed,  contained  an untrue  statement of a
                  material fact or omitted to state a material fact necessary in
                  order  to make the  statements  therein,  in the  light of the
                  circumstances  under which they were made when such  documents
                  were so filed, not misleading.

                      (xv) No registration of the Securities  under the Act, and
                  no qualification of an indenture under the United States Trust
                  Indenture  Act of 1939 with respect  thereto,  is required for
                  the offer,  sale and initial  resale of the  Securities by the
                  Purchasers in the manner contemplated by this Agreement.

                      (xvi) The  Company is not an  "investment  company"  or an
                  entity "controlled" by an "investment  company", as such terms
                  are defined in the Investment Company Act.

     (c) Special  patent  counsel for the Company shall have  furnished to you a
written opinion,  dated such Time of Delivery, in form and scope satisfactory to
you, to the effect that:

                      (i) U.S.  Patent Nos.  4910586 and 5,150,237 and 5,457,560
                  (the "U.S.  Patents") have been duly issued to the Company and
                  are presumed by law to be valid and  enforceable and to comply
                  with the  necessary  requirements  of United States patent law
                  and rules.  Such counsel has no knowledge of any facts that it
                  believes would overcome that  presumption or would render such
                  patents unenforceable.

                      (ii) Assignments to the Company of the full and exclusive
                  right, title, and interest in and to the U.S. Patents and the
                  inventions disclosed and claimed therein have been recorded in
                  the United States Patent and Trademark Office, and the U.S.
                  Patents have issued in the name of the Company. Such counsel
                  has no knowledge of any adverse claim or encumbrance that has
                  been asserted against the Company with respect to right,
                  title, and interest in and to the U.S. Patents.

                      (iii) Nothing has come to the attention of such counsel
                  that leads them to believe that the Offering Circular, as
                  amended or supplemented, if applicable (but only under the
                  captions "Risk Factors--Lack of Protection from Proprietary
                  Rights" and "Business--Patents and Protection of Other
                  Proprietary Information"), contained as of its date or
                  contains as of such Time of Delivery any untrue statement of a
                  material fact or omitted or omits, as the case may be, to
                  state a material fact necessary in order to make the
                  statements therein, in light of the circumstances under which
                  they were made, not misleading.

     (d) Halprin, Temple & Goodman,  special counsel for the Company, shall have
furnished you their written  opinion,  dated such Time of Delivery,  in form and
scope satisfactory to you, to the effect that:

                      (i) Nothing has come to the attention of such counsel that
                  leads them to believe that the Offering Circular, as amended
                  or supplemented, if applicable (but only under the captions
                  "Risk Factors--Regulatory Matters," "Business--Recent
                  Developments--Telecommunications Reform Act," "--Regulations"
                  and other references in the Offering Circular to
                  telecommunications matters), contained as of its date or
                  contains as of such Time of Delivery any untrue statement of a
                  material fact or omitted or omits, as the case may be, to
                  state a material fact necessary in order to make the
                  statements therein, in light of the circumstances under which
                  they were made, not misleading.

                      (ii) Insofar as statements in the Offering Circular
                  purport to summarize the provisions of laws, rules,
                  regulations, orders, judgments or decrees, such statements
                  have been prepared or reviewed by such counsel and, to such
                  counsel's knowledge, accurately reflect the provisions
                  purported to be summarized and are correct in all material
                  respects.

                                      -34-

<PAGE>

     (e) At a time prior to the  execution  of this  Agreement  and also at each
Time of  Delivery,  Ernst & Young LLP shall  have  furnished  to you a letter or
letters,  dated the respective dates of delivery thereof,  in form and substance
satisfactory to you, to the effect set forth in Annex II hereto;

     (f) (i) The Company shall not have sustained since the date of the latest
audited financial statements included in the Offering Circular any loss or
interference with its business from fire, explosion, flood or other calamity,
whether or not covered by insurance, or from any labor dispute or court or
governmental action, order or decree, otherwise than as set forth or
contemplated in the Offering Circular, and (ii) since the respective dates as of
which information is given in the Offering Circular there shall not have been
any change in the capital stock or long-term debt of the Company or any change,
or any development involving a prospective change, in or affecting the general
affairs, management, financial position, stockholders' equity or results of
operations of the Company, otherwise than as set forth or contemplated in the
Offering Circular, the effect of which, in any such case described in Clause (i)
or (ii), is in your judgment so material and adverse as to make it impracticable
or inadvisable to proceed with the offering or the delivery of the Securities on
the terms and in the manner contemplated in this Agreement and in the Offering
Circular;

     (g) On or after the date hereof (i) no downgrading shall have occurred in
the rating accorded the Company's debt securities by any "nationally recognized
statistical rating organization", as that term is defined by the Commission for
purposes of Rule 436(g)(2) under the Act, and (ii) no such organization shall
have publicly announced that it has under surveillance or review, with possible
negative implications, its rating of any of the Company's debt securities;

     (h) On or after the date hereof there shall not have occurred any of the
following: (i) a suspension or material limitation in trading in securities
generally on the New York Stock Exchange; or on the Nasdaq National Market; (ii)
a suspension or material limitation in trading in the Company's securities on
the Nasdaq National Market; (iii) a general moratorium on commercial banking
activities declared by either Federal or New York State authorities; or (iv) the
outbreak or escalation of hostilities involving the United States or the
declaration by the United States of a national emergency or war, if the effect
of any such event specified in this Clause (iv) in your judgment makes it
impracticable or inadvisable to proceed with the offering or the delivery of the
Securities on the terms and in the manner contemplated in the Offering Circular;

     (i) The Securities have been designated for trading on PORTAL;

     (j) The Lock-up Agreements shall be in full force and effect; and

     (k) The Company shall have furnished or caused to be furnished to you at
the Time of Delivery certificates of officers of the Company satisfactory to you
as to the accuracy of the representations and warranties of the Company herein
at and as of such Time of Delivery, as to the performance by the Company of all
of its obligations hereunder to be performed at or prior to such Time of
Delivery, as to the matters set forth in subsection (f) of this Section and as
to such other matters as you may reasonably request.

     8. (a) The Company will indemnify and hold harmless each Purchaser against
any losses, claims, damages or liabilities, joint or several, to which such
Purchaser may become subject, under the Act or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise out
of or are based upon an untrue statement or alleged untrue statement of a
material fact contained in the Offering Circular, or any amendment or supplement
thereto, or arise out of or are based upon the omission or alleged omission to
state therein a material fact necessary to make the statements therein not
misleading, and will reimburse each Purchaser for any legal or other expenses
reasonably incurred by such Purchaser in connection 

                                      -35-

<PAGE>


with  investigating  or defending  any such action or claim as such expenses are
incurred;  PROVIDED,  HOWEVER,  that the Company shall not be liable in any such
case to the extent that any such loss, claim,  damage or liability arises out of
or is based upon an untrue  statement or alleged untrue statement or omission or
alleged  omission  made  in the  Offering  Circular  or any  such  amendment  or
supplement in reliance upon and in conformity with written information furnished
to the Company by any Purchaser  through Goldman,  Sachs & Co. expressly for use
therein.

     (b) Each Purchaser will indemnify and hold harmless the Company against any
losses, claims, damages or liabilities to which the Company may become subject,
under the Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in the
Offering Circular, or any amendment or supplement thereto, or arise out of or
are based upon the omission or alleged omission to state therein a material fact
or necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in the Offering Circular or
any such amendment or supplement in reliance upon and in conformity with written
information furnished to the Company by such Purchaser through Goldman, Sachs &
Co. expressly for use therein; and will reimburse the Company for any legal or
other expenses reasonably incurred by the Company in connection with
investigating or defending any such action or claim as such expenses are
incurred.

     (c) Promptly after receipt by an indemnified party under subsection (a) or
(b) above of notice of the commencement of any action, such indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under such subsection, notify the indemnifying party in writing of the
commencement thereof; but the omission so to notify the indemnifying party shall
not relieve it from any liability which it may have to any indemnified party
otherwise than under such subsection. In case any such action shall be brought
against any indemnified party and it shall notify the indemnifying party of the
commencement thereof, the indemnifying party shall be entitled to participate
therein and, to the extent that it shall wish, jointly with any other
indemnifying party similarly notified, to assume the defense thereof, with
counsel satisfactory to such indemnified party (who shall not, except with the
consent of the indemnified party, be counsel to the indemnifying party), and,
after notice from the indemnifying party to such indemnified party of its
election so to assume the defense thereof, the indemnifying party shall not be
liable to such indemnified party under such subsection for any legal expenses of
other counsel or any other expenses, in each case subsequently incurred by such
indemnified party, in connection with the defense thereof other than reasonable
costs of investigation. No indemnifying party shall, without the written consent
of the indemnified party, effect the settlement or compromise of, or consent to
the entry of any judgment with respect to, any pending or threatened action or
claim in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified party is an actual or potential party
to such action or claim) unless such settlement, compromise or judgment (i)
includes an unconditional release of the indemnified party from all liability
arising out of such action or claim and (ii) does not include a statement as to,
or an admission of, fault, culpability or a failure to act, by or on behalf of
any indemnified party.

     (d) If the indemnification provided for in this Section 8 is unavailable to
or insufficient to hold harmless an indemnified party under subsection (a) or
(b) above in respect of any losses, claims, damages or liabilities (or actions
in respect thereof) referred to therein, then each indemnifying party shall
contribute to the amount paid or payable by such indemnified party as a result
of such losses, claims, damages or liabilities (or actions in respect thereof)
in such proportion as is appropriate to reflect the relative benefits received
by the Company on the one hand and the Purchasers on the other from the offering
of the Securities. If, however, the 

                                      -36-

<PAGE>


     allocation provided by the immediately  preceding sentence is not permitted
by applicable law or if the indemnified party failed to give the notice required
under  subsection (c) above,  then each  indemnifying  party shall contribute to
such amount paid or payable by such  indemnified  party in such proportion as is
appropriate  to reflect not only such  relative  benefits  but also the relative
fault  of the  Company  on the one  hand  and the  Purchasers  on the  other  in
connection  with the  statements  or  omissions  which  resulted in such losses,
claims,  damages or liabilities (or actions in respect thereof),  as well as any
other relevant equitable  considerations.  The relative benefits received by the
Company on the one hand and the Purchasers on the other shall be deemed to be in
the  same  proportion  as the  total  net  proceeds  from the  offering  (before
deducting  expenses)  received  by the  Company  bear to the total  underwriting
discounts and commissions received by the Purchasers,  in each case as set forth
in the Offering  Circular.  The relative  fault shall be determined by reference
to,  among other  things,  whether the untrue or alleged  untrue  statement of a
material  fact or the  omission  or alleged  omission  to state a material  fact
relates to information supplied by the Company on the one hand or the Purchasers
on the other and the parties' relative intent, knowledge,  access to information
and  opportunity to correct or prevent such  statement or omission.  The Company
and the Purchasers agree that it would not be just and equitable if contribution
pursuant to this subsection (d) were determined by pro rata allocation  (even if
the  Purchasers  were  treated as one entity for such  purpose)  or by any other
method of allocation which does not take account of the equitable considerations
referred  to above in this  subsection  (d).  The  amount  paid or payable by an
indemnified party as a result of the losses,  claims, damages or liabilities (or
actions in respect  thereof)  referred to above in this  subsection (d) shall be
deemed  to  include  any legal or other  expenses  reasonably  incurred  by such
indemnified party in connection with  investigating or defending any such action
or claim.  Notwithstanding  the provisions of this  subsection (d), no Purchaser
shall be required to contribute  any amount in excess of the amount by which the
total price at which the Securities were offered to investors exceeds the amount
of any damages which such Purchaser has otherwise been required to pay by reason
of such untrue or alleged untrue statement or omission or alleged omission.  The
Purchasers'  obligations  in this  subsection  (d) to contribute  are several in
proportion to their respective underwriting obligations and not joint.

     (e) The obligations of the Company under this Section 8 shall be in
addition to any liability which the Company may otherwise have and shall extend,
upon the same terms and conditions, to each person, if any, who controls any
Purchaser within the meaning of the Act; and the obligations of the Purchasers
under this Section 8 shall be in addition to any liability which the respective
Purchaser may otherwise have and shall extend, upon the same terms and
conditions, to each officer and director of the Company and to each person, if
any, who controls the Company within the meaning of the Act.

     9. (a) If any Purchaser shall default in its obligation to purchase the
Securities which it has agreed to purchase hereunder, you may in your discretion
arrange for you or another party or other parties to purchase such Securities on
the terms contained herein. If within thirty-six hours after such default by any
Purchaser you do not arrange for the purchase of such Securities, then the
Company shall be entitled to a further period of thirty-six hours within which
to procure another party or other parties satisfactory to you to purchase such
Securities on such terms. In the event that, within the respective prescribed
periods, you notify the Company that you have so arranged for the purchase of
such Securities, or the Company notifies you that it has so arranged for the
purchase of such Securities, you or the Company shall have the right to postpone
the Time of Delivery for a period of not more than seven days, in order to
effect whatever changes may thereby be made necessary in the Offering Circular,
or in any other documents or arrangements, and the Company agrees to prepare
promptly any amendments to the Offering Circular which in your opinion may
thereby be made necessary. The term "Purchaser" as used in this Agreement 

                                      -37-

<PAGE>


shall include any person  substituted  under this Section with like effect as if
such person had  originally  been a party to this Agreement with respect to such
Securities .

     (b) If, after giving effect to any arrangements for the purchase of the
Securities of a defaulting Purchaser or Purchasers by you and the Company as
provided in subsection (a) above, the aggregate principal amount of such
Securities which remains unpurchased does not exceed one-eleventh of the
aggregate principal amount of all the Securities , then the Company shall have
the right to require each non-defaulting Purchaser to purchase the principal
amount of Securities which such Purchaser agreed to purchase hereunder and, in
addition, to require each non-defaulting Purchaser to purchase its pro rata
share (based on the principal amount of Securities which such Purchaser agreed
to purchase hereunder) of the Securities of such defaulting Purchaser or
Purchasers for which such arrangements have not been made; but nothing herein
shall relieve a defaulting Purchaser from liability for its default.

     (c) If, after giving effect to any arrangements for the purchase of the
Securities of a defaulting Purchaser or Purchasers by you and the Company as
provided in subsection (a) above, the aggregate principal amount of Securities
which remains unpurchased exceeds one-eleventh of the aggregate principal amount
of all the Securities, or if the Company shall not exercise the right described
in subsection (b) above to require non-defaulting Purchasers to purchase
Securities of a defaulting Purchaser or Purchasers, then this Agreement shall
thereupon terminate, without liability on the part of any non-defaulting
Purchaser or the Company, except for the expenses to be borne by the Company and
the Purchasers as provided in Section 6 hereof and the indemnity and
contribution agreements in Section 8 hereof; but nothing herein shall relieve a
defaulting Purchaser from liability for its default.

     10. The respective indemnities, agreements, representations, warranties and
other statements of the Company and the several Purchasers, as set forth in this
Agreement or made by or on behalf of them, respectively, pursuant to this
Agreement, shall remain in full force and effect, regardless of any
investigation (or any statement as to the results thereof) made by or on behalf
of any Purchaser or any controlling person of any Purchaser, or the Company, or
any officer or director or controlling person of the Company, and shall survive
delivery of and payment for the Securities.

     11. If this Agreement shall be terminated pursuant to Section 9 hereof or
if the Company fails to deliver the Securities as a result of the inaccuracy of
a representation or warranty of the Purchasers contained in Annex I hereto, the
Company shall not then be under any liability to any Purchaser except as
provided in Sections 6 and 8 hereof; but, if for any other reason, the
Securities are not delivered by or on behalf of the Company as provided herein,
the Company will reimburse the Purchasers through you for all out-of-pocket
expenses approved in writing by you, including fees and disbursements of
counsel, reasonably incurred by the Purchasers in making preparations for the
purchase, sale and delivery of the Securities, but the Company shall then be
under no further liability to any Purchaser except as provided in Sections 6 and
8 hereof.

     12. In all dealings hereunder, Goldman, Sachs & Co. shall act on behalf of
each of the Purchasers, and the parties hereto shall be entitled to act and rely
upon any statement, request, notice or agreement on behalf of any Purchaser made
or given by Goldman, Sachs & Co. All statements, requests, notices and
agreements hereunder shall be in writing, and if to the Purchasers shall be
delivered or sent by mail, telex or facsimile transmission to you in care of
Goldman, Sachs & Co., 85 Broad Street, New York, New York 10004, Attention:
Registration Department; and if to the Company shall be delivered or sent by
mail, telex or facsimile transmission to the address of the Company set forth in
the Offering Circular, Attention: Secretary. Any such statements, requests,
notices or agreements shall take effect upon receipt thereof.

                                      -38-

<PAGE>


     13. This Agreement shall be binding upon, and inure solely to the benefit
of, the Purchasers, the Company and, to the extent provided in Sections 8 and 10
hereof, the officers and directors of the Company and each person who controls
the Company or any Purchaser, and their respective heirs, executors,
administrators, successors and assigns, and no other person shall acquire or
have any right under or by virtue of this Agreement. No purchaser of any of the
Securities from any Purchaser shall be deemed a successor or assign by reason
merely of such purchase.

     14. Time shall be of the essence of this Agreement.

     15. This  Agreement  shall be governed by and construed in accordance  with
the laws of the State of New York.

     16. This Agreement may be executed by any one or more of the parties hereto
in any number of counterparts,  each of which shall be deemed to be an original,
but all such respective  counterparts shall together constitute one and the same
instrument.

      If the foregoing is in accordance with your understanding, please sign and
return to us five counterparts hereof, and upon the acceptance hereof by you,
this letter and such acceptance hereof shall constitute a binding agreement
between the Purchasers and the Company. It is understood that your acceptance of
this letter on behalf of each of the Purchasers is pursuant to the authority set
forth in a form of Agreement among Purchasers, the form of which shall be
submitted to the Company for examination upon request, but without warranty on
your part as to the authority of the signers thereof.

                                           Very truly yours,

                                           Broadband Technologies, Inc.


                                           By:    ________________________
                                            Name:  Salim A. Bhatia
                                            Title:    Chief Executive Officer

Accepted as of the date hereof:

Goldman, Sachs & Co.
Bear, Stearns & Co. Inc.



By:    ____________________________
          (Goldman, Sachs & Co.)


                                      -39-

<PAGE>



                                     SCHEDULE I


            Purchaser            Principal Amount            Aggregate 
                                 of Firm Securities       Principal Amount
                                   to be Purchased          of Optional
                                                          Securities to be
                                                             Purchased if
                                                                Maximum
                                                            Option Exercised
Goldman, Sachs & Co.               $  80,000,000               $12,000,000

Bear, Stearns & Co. Inc.              20,000,000                 3,000,000
                                      ----------                 ---------

                  Total             $100,000,000               $15,000,000
                                    ============               ===========

                                      -40-

<PAGE>


                                   SCHEDULE II


                          PARTIES TO LOCK-UP AGREEMENTS

                  To include all directors and officers of the Company holding
or vested or unvested options exercisable for such Common Stock. Such persons
are:



                           Salim A. L. Bhatia
                           Fredrick Boswell
                           Richard Clark
                           John H. Gorman
                           Robert W. Henry
                           John R. Hutchins, III
                           J. Richard Jones
                           Charles Lee
                           Wayne C. Machon
                           Lawrence McLernon
                           Richard L. Popp

                                      -41-


<PAGE>




                                                                       ANNEX I




        (1) The Securities and the Stock issuable upon the conversion thereof
have not been and will not be registered under the Act and may not be offered or
sold within the United States or to, or for the account or benefit of, U.S.
persons except in accordance with Regulation S under the Act or pursuant to an
exemption from the registration requirements of the Act. Each Purchaser
represents it has offered and sold, and will offer and sell, the Securities and
the Stock issuable upon the conversion thereof (i) as part of its distribution
at any time and (ii) otherwise until 40 days after the later of the commencement
of the offering and the latest Time of Delivery, only in accordance with Rule
903 of Regulation S, Rule 144A or Regulation D under the Act. Accordingly, each
Purchaser agrees that neither it, its affiliates nor any persons acting on its
or their behalf has engaged or will engage in any directed selling efforts with
respect to the Securities or the Stock issuable upon conversion thereof. Each
Purchaser agrees that, at or prior to confirmation of sale of Securities (other
than a sale pursuant to Rule 144A or Regulation D under the Act), it will have
sent to each distributor, dealer or person receiving a selling concession, fee
or other remuneration that purchases Securities from it during the restricted
period a confirmation or notice to substantially the following effect:

               "The  Securities covered hereby  and the  Stock issuable upon the
                  conversion  thereof  have not been  registered  under the U.S.
                  Securities Act of 1933 (the  "Securities  Act") and may not be
                  offered  and sold  within the United  States or to, or for the
                  account  or  benefit  of,  U.S.  persons  (i) as part of their
                  distribution at any time or (ii) otherwise until 40 days after
                  the later of the  commencement  of the offering,  the original
                  issue date of the  Securities  and the issue date with respect
                  to  the  additional  Securities,   if  any,  issued  to  cover
                  over-allotments,  except in  either  case in  accordance  with
                  Regulation S (or Rule 144A if available)  under the Securities
                  Act.  Terms  used  above  have  the  meaning  given to them by
                  Regulation S under the Securities Act."

Terms used in this paragraph have the meanings given to them by Regulation S
under the Act.

        Each Purchaser further agrees that it has not entered and will not enter
into  any  contractual  arrangement  with  respect  to the  distribution  of the
Securities,  except with its affiliates or with the prior written consent of the
Company.

        (2) Notwithstanding the foregoing, Securities in registered form may be
offered, sold and delivered by the Purchasers in the United States and to U.S.
persons in a manner designed to be exempt from the registration provisions of
the Securities Act and the rules and regulations thereunder and without delivery
of the written statement required by paragraph (1) above. In connection
therewith, each Purchaser represents and warrants to, and agrees with, the
Company that:

                  (a) It has offered and sold, and will offer and sell,
                  Securities and the Stock issuable upon conversion thereof only
                  to persons that it reasonably believes are (i) qualified
                  institutional buyers within the meaning of Rule 144A under the
                  Act in transactions meeting the requirements of such Rule
                  144A, or (ii) institutions that are "accredited investors"
                  within the meaning of Rule 501(a)(1), (2), (3) or (7) under
                  the Act; and
                                      -42-

<PAGE>

                  (b) It has offered the Securities to not more than 50
                  institutional accredited investors; each institutional
                  accredited investor that purchases Securities from it shall
                  (i) purchase not less than U.S.$250,000 principal amount of
                  Securities, and (ii) execute and deliver a purchaser's letter
                  substantially in the form of Annex A to the Offering Circular;
                  and

                  (c) It has not  offered  or sold,  and will not offer or sell,
                  Securities or the Stock issuable upon the  conversion  thereof
                  by any form of general  solicitation  or general  advertising,
                  including  but not  limited to the methods  described  in Rule
                  502(c) under the Securities Act.

        (3) Each Purchaser further represents and agrees that (i) it has not
offered or sold, and will not offer or sell, in the United Kingdom by means of
any document, any Securities other than to persons whose ordinary business it is
to buy or sell debentures, whether as principal or as agent, or in circumstances
which do not constitute an offer to the public within the meaning of the
Companies Act 1985 of Great Britain, (ii) it has complied, and will comply, with
all applicable provisions of the Financial Services Act 1986 of Great Britain
with respect to anything done by it in relation to the Securities in, from or
otherwise involving the United Kingdom, and (iii) it has only issued or passed
on, and will only issue or pass on, in the United Kingdom, any document received
by it in connection with the issuance of the Securities to a person who is of a
kind described in Article 11(3) of the Financial Services Act 1986 (Investment
Advertisements) (Exemptions) Order 1995 of Great Britain or is a person to whom
the document may otherwise lawfully be issued or passed on.

        (4) Each Purchaser agrees that it will not offer, sell or deliver any of
the Securities in any jurisdiction outside the United States except under
circumstances that will result in compliance with the applicable laws thereof,
and that it will take at its own expense whatever action is required to permit
its purchase and resale of the Securities in such jurisdictions. Each Purchaser
understands that no action has been taken to permit a public offering in any
jurisdiction outside the United States where action would be required for such
purpose. Each Purchaser agrees not to cause any advertisement of the Securities
to be published in any newspaper or periodical or posted in any public place and
not to issue any circular relating to the Securities, except at its own risk and
expense.

                                      -43-


<PAGE>

     Pursuant to Section 7(d) of the Purchase Agreement, the accountants shall
furnish letters to the Purchasers to the effect that:

                      (i) They are independent certified public accountants with
                  respect to the Company  within the  meaning of the  Securities
                  Exchange Act of 1934 (the  "Exchange  Act") and the applicable
                  published rules and regulations thereunder;

                      (ii)  In  their  opinion,  the  financial  statements  and
                  financial  statement schedules audited by them and included in
                  the  Offering  Circular  comply  as to  form  in all  material
                  respects with the applicable  requirements of the Exchange Act
                  and the related published rules and regulations;

                      (iii) The unaudited selected financial information with
                  respect to the results of operations and financial position of
                  the Company for the five most recent fiscal years included in
                  the Offering Circular agrees with the corresponding amounts
                  (after restatements where applicable) in the audited financial
                  statements for such five fiscal years;

                      (iv) On the basis of limited procedures not constituting
                  an audit in accordance with generally accepted auditing
                  standards, consisting of a reading of the unaudited financial
                  statements and other information referred to below, a reading
                  of the latest available interim financial statements of the
                  Company, inspection of the minute books of the Company since
                  the date of the latest audited financial statements included
                  in the Offering Circular, inquiries of officials of the
                  Company responsible for financial and accounting matters and
                  such other inquiries and procedures as may be specified in
                  such letter, nothing came to their attention that caused them
                  to believe that:

                         (A)        the unaudited statements of operations,
                                    balance sheets and statements of cash flows
                                    included in the Offering Circular are not in
                                    conformity with generally accepted
                                    accounting principles applied on the basis
                                    substantially consistent with the basis for
                                    the audited statements of income, balance
                                    sheets and statements of cash flows included
                                    in the Offering Circular;

                         (B)        any other unaudited statement of operations
                                    data and balance sheet items included in the
                                    Offering Circular do not agree with the
                                    corresponding items in the unaudited
                                    financial statements from which such data
                                    and items were derived, and any such
                                    unaudited data and items were not determined
                                    on a basis substantially consistent with the
                                    basis for the corresponding amounts in the
                                    audited financial statements included in the
                                    Offering Circular;

                         (C)        the unaudited financial statements which
                                    were not included in the Offering Circular
                                    but from which were derived any unaudited
                                    financial statements referred to in Clause
                                    (A) and any unaudited statement of
                                    operations data and balance sheet items
                                    included in the Offering Circular and
                                    referred to in Clause (B) were not


                                      -44-

<PAGE>


                                    determined on a basis substantially
                                    consistent with the basis for the audited
                                    financial statements included in the
                                    Offering Circular;

                         (D)        any unaudited pro forma condensed financial
                                    statements included in the Offering Circular
                                    do not comply as to form in all material
                                    respects with the applicable accounting
                                    requirements or the pro forma adjustments
                                    have not been properly applied to the
                                    historical amounts in the compilation of
                                    those statements;

                         (E)        as of a specified date not more than five
                                    days prior to the date of such letter, there
                                    have been any changes in the capital stock
                                    (other than issuances of capital stock upon
                                    exercise of options and stock appreciation
                                    rights and upon earn-outs of performance
                                    shares, in each case which were outstanding
                                    on the date of the latest financial
                                    statements included in the Offering
                                    Circular) or any increase in the long-term
                                    debt of the Company, or any decreases in net
                                    current assets or stockholders' equity or
                                    other items specified by the Purchasers, or
                                    any increases in any items specified by the
                                    Purchasers, in each case as compared with
                                    amounts shown in the latest balance sheet
                                    included in the Offering Circular except in
                                    each case for changes, increases or
                                    decreases which the Offering Circular
                                    discloses have occurred or may occur or
                                    which are described in such letter; and

                         (F)        for the period from the date of the latest
                                    financial statements included in the
                                    Offering Circular to the specified date
                                    referred to in Clause (E) there were any
                                    decreases in net revenues or operating
                                    profit or the total or per share amounts of
                                    net income or other items specified by the
                                    Purchasers, or any increases in any items
                                    specified by the Purchasers, in each case as
                                    compared with the comparable period of the
                                    preceding year and with any other period of
                                    corresponding length specified by the
                                    Purchasers, except in each case for
                                    decreases or increases which the Offering
                                    Circular discloses have occurred or may
                                    occur or which are described in such letter;
                                    and

                      (v) In addition to the examination referred to in their
                  report(s) included in the Offering Circular and the limited
                  procedures, inspection of minute books, inquiries and other
                  procedures referred to in paragraphs (iii) and (iv) above,
                  they have carried out certain specified procedures, not
                  constituting an audit in accordance with generally accepted
                  auditing standards, with respect to certain amounts,
                  percentages and financial information specified by the
                  Purchasers, which are derived from the general accounting
                  records of the Company, which appear in the Offering Circular,
                  and have compared certain of such amounts, percentages and
                  financial information with the accounting records of the
                  Company and have found them to be in agreement.

                                      -45-


<PAGE>

                                                                    EXHIBIT B



                            FORM OF LOCK-UP AGREEMENT


                                                                    Dated as of

                                                                    May 16, 1996



BroadBand Technologies, Inc.,
4024 Stirrup Creek Dr.,
Durham, North Carolina 27703.

Goldman, Sachs & Co., 
85 Broad Street, 
New York, New York 10004.

Bear, Stearns & Co. Inc.
245 Park Avenue
New York, New York 10167.

Ladies and Gentlemen:

                  The undersigned understands that BroadBand Technologies,  Inc.
(the  "Company")  proposes  to  issue  and  sell  (the  "Offering")  Convertible
Subordinated Notes (the "Securities"), convertible into shares of the Company's
Common Stock, par value $0.01 per share (the "Stock").

                  In connection with the Offering, the Company will enter into a
purchase agreement with Goldman, Sachs & Co. and Bear, Stearns & Co. Inc. (the
"Purchasers"). The form, terms and conditions of this agreement, including the
amount of Securities to be sold in the Offering, the amount of Securities to be
purchased by the Purchasers and the Purchasers' purchase price and the initial
offering price, are to be determined by the Company and the Purchasers at a
later date, and references herein to the "Purchase Agreement" mean such document
in the form in which it will eventually be executed and delivered by the parties
thereto.

                  The undersigned, to facilitate the marketing of the Securities
and in  consideration  of the  Company  and the  Purchasers  entering  into  the
Purchase  Agreement,  hereby irrevocably  confirms and agrees for the benefit of
the Company and the Purchasers as follows:

                                      -46-

<PAGE>


                  During the period beginning on and including the date hereof
and continuing to and including the date 90 days after the first original issue
date of the Securities, the undersigned will not, without the prior written
consent of the Purchasers, directly or indirectly, offer, sell, contract to
sell, or otherwise dispose of any Stock, any securities which are substantially
similar to the Securities or the Stock and any securities convertible into or
exchangeable or exercisable for Stock or substantially similar securities, which
Stock and other securities are, on the date hereof, or become, at any time
hereafter, registered in the name of, or beneficially owned or controlled by,
the undersigned; provided, however, that the undersigned may transfer to any
person up to an aggregate of _______ shares of Stock [number to represent 10% of
Stock, including vested and unvested options, beneficially owned by the
signatory, the aggregate for all such signatories not to exceed 95,930 shares of
Stock].


                                          Very truly yours,



                                          --------------------------------------
                                          Signature


                                          --------------------------------------
                                          Print Name


        Accepted as of the date hereof:
        BroadBand Technologies, Inc.


        By:____________________________
           Name:
           Title:


        Goldman, Sachs & Co.
        Bear, Stearns & Co. Inc.


        By:____________________________
             (Goldman, Sachs & Co.)



                                      -47-




                          BROADBAND TECHNOLOGIES, INC.

                                     ISSUER

                                       TO


                               MARINE MIDLAND BANK

                                     TRUSTEE



                                ----------------


                                    INDENTURE

                            Dated as of May 22, 1996


                                ----------------

                                U.S.$115,000,000



                        5% CONVERTIBLE SUBORDINATED NOTES
                                DUE MAY 15, 2001


                                      -48-


<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                                TABLE OF CONTENTS
                                   -----------

<TABLE>
<CAPTION>
                                                                                                                          Page

<S>                                                                                                                        <C>    

RECITALS OF THE COMPANY ................................................................................................     1

ARTICLE ONE

                                               DEFINITIONS AND OTHER PROVISIONS
                                                    OF GENERAL APPLICATION .............................................     2

SECTION 1.1  Definitions................................................................................................     2
                  Act ..................................................................................................     2
                  Affiliate ............................................................................................     2
                  Agent Member .........................................................................................     2
                  Applicable Procedures ................................................................................     2
                  Authenticating Agent .................................................................................     2
                  Board of Directors ...................................................................................     3
                  Board Resolution .....................................................................................     3
                  Business Day .........................................................................................     3
                  CEDEL ................................................................................................     3
                  Change in Control ....................................................................................     3
                  Closing Price Per Share ..............................................................................     3
                  Code .................................................................................................     3
                  Commission ...........................................................................................     3
                  Common Stock .........................................................................................     3
                  common stock .........................................................................................     4
                  Company ..............................................................................................     4
                  Company Notice .......................................................................................     4
                  Company Request or Company Order .....................................................................     4
                  Constituent Person ...................................................................................     4
                  Conversion Agent .....................................................................................     4
                  Conversion Rate ......................................................................................     4
                  Corporate Trust Office ...............................................................................     4
                  corporation ..........................................................................................     4
                  Defaulted Interest ...................................................................................     4
                  Depositary ...........................................................................................     4
                  Dollar or U.S.$ ......................................................................................     5

                                      -49-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  DTC ..................................................................................................     5
                  EUROCLEAR ............................................................................................     5
                  Event of Default .....................................................................................     5
                  Exchange Act .........................................................................................     5
                  Exchange Date ........................................................................................     5
                  Global Security ......................................................................................     5
                  Holder ...............................................................................................     5
                  Indenture ............................................................................................     5
                  Initial Purchasers ...................................................................................     5
                  Interest Payment Date ................................................................................     5
                  Liquidated Damages ...................................................................................     5
                  Maturity .............................................................................................     5
                  Non-electing Share ...................................................................................     5
                  Officers' Certificate ................................................................................     5
                  Opinion of Counsel ...................................................................................     6
                  Outstanding ..........................................................................................     6
                  Paying Agent .........................................................................................     6
                  Person ...............................................................................................     7
                  Place of Conversion ..................................................................................     7
                  Place of Payment .....................................................................................     7
                  Predecessor Security .................................................................................     7
                  Purchase Agreement ...................................................................................     7
                  Record Date ..........................................................................................     7
                  Record Date Period ...................................................................................     7
                  Redemption Date ......................................................................................     7
                  Redemption Price .....................................................................................     7
                  Registrable Securities ...............................................................................     7
                  Registration Default .................................................................................     7
                  Registration Rights Agreement ........................................................................     7
                  Regular Record Date ..................................................................................     7
                  Regulation D Securities ..............................................................................     8
                  Regulation S .........................................................................................     8
                  Regulation S Certificate .............................................................................     8
                  Regulation S Global Security .........................................................................     8
                  Regulation S Legend ..................................................................................     8
                  Regulation S Securities ..............................................................................     8
                  Repurchase Date ......................................................................................     8
                  Repurchase Price .....................................................................................     8
                  Responsible Officer ..................................................................................     8
                  Restricted Global Security ...........................................................................     8

                                      -50-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  Restricted Period ....................................................................................     8
                  Restricted Securities ................................................................................     8
                  Restricted Securities Certificate ....................................................................     9
                  Restricted Securities Legend .........................................................................     9
                  Rule 144A ............................................................................................     9
                  Rule 144A Information ................................................................................     9
                  Rule 144A Securities .................................................................................     9
                  Securities ...........................................................................................     9
                  Securities Act .......................................................................................     9
                  Securities Act Legend ................................................................................     9
                  Security Register" and "Security Registrar ...........................................................     9
                  Senior Debt ..........................................................................................     9
                  Shelf Registration Statement .........................................................................    10
                  Special Record Date ..................................................................................    10
                  Stated Maturity ......................................................................................    10
                  Subsidiary ...........................................................................................    10
                  Successor Security ...................................................................................    10
                  Surrender Certificate ................................................................................    10
                  Trading Days .........................................................................................    10
                  Transfer Agent .......................................................................................    11
                  Trust Indenture Act ..................................................................................    11
                  Trustee ..............................................................................................    11
                  United States ........................................................................................    11
                  Unrestricted Securities Certificate ..................................................................    11
                  Vice President .......................................................................................    11
                  SECTION 1.2  Compli11ce Certificates and Opinions.....................................................    11
                  SECTION 1.3  Form of Documents Delivered to the Trustee ..............................................    12
                  SECTION 1.4  Acts of Holders of Securities ...........................................................    13
                  SECTION 1.5  Notices, Etc., to Trustee and Company ...................................................    15
                  SECTION 1.6  Notice to Holders of Securities; Waiver .................................................    15
                  SECTION 1.7  Effect of Headings and Table of Contents ................................................    16
                  SECTION 1.8  Successors and Assigns ..................................................................    16
                  SECTION 1.9  Separability Clause .....................................................................    16
                  SECTION 1.10 Benefits of Indenture ...................................................................    16
                  SECTION 1.11 Governing Law ...........................................................................    16
                  SECTION 1.12 Legal Holidays ..........................................................................    16
                  SECTION 1.13 Conflict with Trust Indenture Act .......................................................    17

                                      -51-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  ARTICLE TWO

                                               SECURITY FORMS .........................................................   18

                  SECTION 2.1  Forms Generally ........................................................................   18
                  SECTION 2.2  Forms of Securities ....................................................................   19
                  SECTION 2.3  Form of Certificate of Authentication ..................................................   34
                  SECTION 2.4  Form of Conversion Notice ..............................................................   35

                  ARTICLE THREE

                                               THE SECURITIES .........................................................   37

                  SECTION 3.1  Title and Terms ........................................................................   37
                  SECTION 3.2  Denominations ..........................................................................   38
                  SECTION 3.3  Execution, Authentication, Delivery and Dating .........................................   38
                  SECTION 3.4  Global Securities; Non-Global Securities ...............................................   38
                  SECTION 3.5  Registration, Registration of Transfer and Exchange; Restrictions on Transfer ..........   40
                  SECTION 3.6  Mutilated, Destroyed, Lost or Stolen Securities ........................................   46
                  SECTION 3.7  Payment of Interest; Interest Rights Preserved .........................................   47
                  SECTION 3.8  Cancellation ...........................................................................   48
                  SECTION 3.9  Computation of Interest ................................................................   48
                  SECTION 3.10 CUSIP and ISIN Numbers .................................................................   48

                                           -52-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  ARTICLE FOUR

                                               SATISFACTION AND DISCHARGE .............................................   49

                  SECTION 4.1  Satisfaction and Discharge of Indenture ................................................   49
                  SECTION 4.2  Application of Trust Money .............................................................   50

                  ARTICLE FIVE

                                               REMEDIES ...............................................................   51

                  SECTION 5.1  Events of Default ......................................................................   51
                  SECTION 5.2  Acceleration of Maturity; Rescission and Annulment .....................................   52
                  SECTION 5.3  Collection of Indebtedness and Suits for Enforcement by Trustee ........................   53
                  SECTION 5.4  Trustee May File Proofs of Claim .......................................................   54
                  SECTION 5.5  Trustee May Enforce Claims Without Possession of Securities ............................   55
                  SECTION 5.6  Application of Money Collected .........................................................   55
                  SECTION 5.7  Limitation on Suits ....................................................................   56
                  SECTION 5.8  Unconditional Right of Holders to Receive Principal, Premium and Interest and to Convert   56
                  SECTION 5.9  Restoration of Rights and Remedies .....................................................   57
                  SECTION 5.10 Rights and Remedies Cumulative .........................................................   57
                  SECTION 5.11 Delay or Omission Not Waiver ...........................................................   57
                  SECTION 5.12 Control by Holders of Securities .......................................................   57
                  SECTION 5.13 Waiver of Past Defaults ................................................................   58
                  SECTION 5.14 Undertaking for Costs ..................................................................   58
                  SECTION 5.15 Waiver of Stay, Usury or Extension Laws ................................................   58

                  ARTICLE SIX

                                               THE TRUSTEE ............................................................   59

                  SECTION 6.1  Certain Duties and Responsibilities ....................................................   59
                  SECTION 6.2  Notice of Defaults .....................................................................   60
                  SECTION 6.3  Certain Rights of Trustee ..............................................................   60
                  SECTION 6.4  Not Responsible for Recitals or Issuance of Securities .................................   61
                  SECTION 6.5  May Hold Securities, Act as Trustee Under Other Indentures .............................   62

                                      -53-


<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  SECTION 6.6  Money Held in Trust ....................................................................   62
                  SECTION 6.7  Compensation and Reimbursement .........................................................   62
                  SECTION 6.8  Corporate Trustee Required; Eligibility ................................................   63
                  SECTION 6.9  Resignation and Removal; Appointment of Successor ......................................   63
                  SECTION 6.10 Acceptance of Appointment by Successor .................................................   65
                  SECTION 6.11 Merger, Conversion, Consolidation or Succession to Business ............................   65
                  SECTION 6.12 Authenticating Agents ..................................................................   65
                  SECTION 6.13 Disqualification; Conflicting Interests ................................................   67
                  SECTION 6.14 Preferential Collection of Claims Against Company ......................................   67

                  ARTICLE SEVEN

                                              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE.....................   68

                  SECTION 7.1  Company May Consolidate, Etc., Only on Certain Terms ...................................   68
                  SECTION 7.2  Successor Substituted ..................................................................   69

                  ARTICLE EIGHT

                                              SUPPLEMENTAL INDENTURES..................................................   70

                  SECTION 8.1. Supplemental Indentures Without Consent of Holders of Securities........................   70
                  SECTION 8.2. Supplemental Indentures with Consent of Holders of Securities...........................   71
                  SECTION 8.3. Execution of Supplemental Indentures....................................................   72
                  SECTION 8.4. Effect of Supplemental Indentures.......................................................   72
                  SECTION 8.5. Reference in Securities to Supplemental Indentures......................................   72
                  SECTION 8.6. Notice of Supplemental Indentures.......................................................   73

                  ARTICLE NINE

                                               MEETINGS OF HOLDERS OF SECURITIES......................................   74

                  SECTION 9.1  Purposes for Which Meetings May Be Called .............................................   74
                  SECTION 9.2  Call, Notice and Place of Meetings ....................................................   74
                  SECTION 9.3  Persons Entitled to Vote at Meetings ..................................................   74
                  SECTION 9.4  Quorum; Action ........................................................................   75
                  SECTION 9.5  Determination of Voting Rights; Conduct and Adjournment of Meetings....................   75

                                         -54-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  SECTION 9.6  Counting Votes and Recording Action of Meetings .......................................   76

                  ARTICLE TEN

                                               COVENANTS .............................................................   77

                  SECTION 10.1  Payment of Principal, Premium and Interest ...........................................   77
                  SECTION 10.2  Maintenance of Offices or Agencies ...................................................   77
                  SECTION 10.3  Money for Security Payments to Be Held in Trust ......................................   78
                  SECTION 10.4  Existence ............................................................................   79
                  SECTION 10.5  Maintenance of Properties ............................................................   79
                  SECTION 10.6  Payment of Taxes and Other Claims ....................................................   79
                  SECTION 10.7  Registration and Listing .............................................................   80
                  SECTION 10.8  Statement by Officers as to Default ..................................................   80
                  SECTION 10.9  Delivery of Certain Information ......................................................   81
                  SECTION 10.10 Resale of Certain Securities; Reporting Issuer .......................................   81
                  SECTION 10.11 Registration Rights ..................................................................   81
                  SECTION 10.12 Waiver of Certain Covenants ..........................................................   83

                  ARTICLE ELEVEN

                                               REDEMPTION OF SECURITIES...............................................   84

                  SECTION 11.1 Right of Redemption ...................................................................   84
                  SECTION 11.2 Applicability of Article ..............................................................   84
                  SECTION 11.3 Election to Redeem; Notice to Trustee .................................................   84
                  SECTION 11.4 Selection by Trustee of Securities to Be Redeemed......................................   84
                  SECTION 11.5 Notice of Redemption ..................................................................   85
                  SECTION 11.6 Deposit of Redemption Price ...........................................................   86
                  SECTION 11.7 Securities Payable on Redemption Date .................................................   86
                  SECTION 11.8 Securities Redeemed in Part ...........................................................   87

                  ARTICLE TWELVE

                                               CONVERSION OF SECURITIES...............................................   88

                 SECTION 12.1  Conversion Privilege and Conversion Rate ..............................................   88
                 SECTION 12.2  Exercise of Conversion Privilege ......................................................   88
                 SECTION 12.3  Fractions of Shares ...................................................................   90
                 SECTION 12.4  Adjustment of Conversion Rate .........................................................   90

                                      -55-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                 SECTION 12.5  Notice of Adjustments of Conversion Rate ..............................................   94
                 SECTION 12.6  Notice of Certain Corporate Action ....................................................   95
                 SECTION 12.7  Company to Reserve Common Stock .......................................................   96
                 SECTION 12.8  Taxes on Conversions ..................................................................   96
                 SECTION 12.9  Covenant as to Common Stock ...........................................................   97
                 SECTION 12.10 Cancellation of Converted Securities ..................................................   97
                 SECTION 12.11 Provision in Case of Consolidation, Merger or Sale of Assets...........................   97
                 SECTION 12.12 Responsibility of Trustee for Conversion Provisions ...................................   98

                  ARTICLE THIRTEEN

                                               SUBORDINATION OF SECURITIES...........................................    99

                  SECTION 13.1.     Securities Subordinate to Senior Debt............................................    99
                  SECTION 13.2.     Payment Over of Proceeds Upon Dissolution, Etc...................................    99
                  SECTION 13.3.     No Payment When Senior Debt in Default...........................................   100
                  SECTION 13.4.     Payment Permitted If No Default..................................................   101
                  SECTION 13.5.     Subrogation to Rights of Holders of Senior Debt..................................   101
                  SECTION 13.6.     Provisions Solely to Define Relative Rights......................................   101
                  SECTION 13.7.     Trustee to Effectuate Subordination..............................................   102
                  SECTION 13.8.     No Waiver of Subordination Provisions............................................   102
                  SECTION 13.9.     Notice to Trustee ...............................................................   102
                  SECTION 13.10.    Reliance on Judicial Order or Certificate of Liquidating Agent...................   103
                  SECTION 13.11.    Trustee Not Fiduciary for Holders of Senior Debt.................................   103
                  SECTION 13.12.    Rights of Trustee as Holder of Senior Debt; Preservation of Trustee's Rights.....   104
                  SECTION 13.13.    Article Applicable to Paying Agents..............................................   104
                  SECTION 13.14.    Certain Conversions and Repurchases Deemed Payment...............................   104
                  SECTION 13.15.    Rescission ......................................................................   105

                  ARTICLE FOURTEEN

                                               REPURCHASE OF SECURITIES AT THE OPTION OF THE
                                                      HOLDER UPON A CHANGE IN CONTROL................................   106

                  SECTION 14.1.     Right to Require Repurchase......................................................   106
                  SECTION 14.2.     Conditions to the Company's Election to Pay the Repurchase Price in Common Stock.   106

                                      -56-

<PAGE>

NOTE: This table of contents shall not, for any purpose, be deemed to be a 
part of the Indenture.

                  SECTION 14.3.     Notices; Method of Exercising Repurchase Right, Etc..............................   107
                  SECTION 14.4.     Certain Definitions..............................................................   111

                  ARTICLE FIFTEEN

                                               HOLDERS LISTS AND REPORTS BY TRUSTEE AND COMPANY......................   113

                  SECTION 15.1.     Company to Furnish Trustee Names and Addresses of Holders........................   113
                  SECTION 15.2.     Preservation of Information; Communications to Holders...........................   113

ANNEX A..............................................................................................................   A-1
ANNEX B..............................................................................................................   B-1
ANNEX C..............................................................................................................   C-1
ANNEX D..............................................................................................................   D-1

</TABLE>

                                      -57-


<PAGE>


     INDENTURE, dated as of May 22, 1996, between BroadBand Technologies,  Inc.,
a  corporation  duly  organized  and  existing  under  the laws of the  State of
Delaware,  having its  principal  executive  office at 4024 Stirrup Creek Drive,
Durham,  North Carolina 27703 (herein called the "Company"),  and Marine Midland
Bank, a New York banking  corporation  and trust company,  as Trustee  hereunder
(herein called the "Trustee").

                             RECITALS OF THE COMPANY

     The  Company  has  duly  authorized  the  creation  of an  issue  of its 5%
Convertible  Subordinated Notes due May 15, 2001 in registered form only (herein
called the "Securities") of substantially  the tenor and amount  hereinafter set
forth, and to provide therefor the Company has duly authorized the execution and
delivery of this Indenture.

     All  things  necessary  to make the  Securities,  when the  Securities  are
executed by the Company and  authenticated  and delivered  hereunder,  the valid
obligations of the Company,  and to make this Indenture a valid agreement of the
Company,  in accordance with their and its terms, have been done.  Further,  all
things  necessary  to duly  authorize  the  issuance of the Common  Stock of the
Company issuable upon the conversion of the Securities,  and to duly reserve for
issuance the number of shares of Common  Stock  issuable  upon such  conversion,
have been done.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Securities
by the Holders thereof,  it is mutually covenanted and agreed, for the equal and
proportionate benefit of all Holders of the Securities, as follows:

                                      -58-
<PAGE>


                                   ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION

SECTION 1.1 Definitions.

     For all purposes of this Indenture,  except as otherwise expressly provided
or unless the context otherwise requires:

                      (1) the terms  defined in this  Article  have the meanings
                  assigned  to them in this  Article  and  include the plural as
                  well as the singular;

                      (2) all accounting terms not otherwise defined herein have
                  the meanings  assigned to them in  accordance  with  generally
                  accepted  accounting  principles  in the United  States,  and,
                  except  as  otherwise  herein  expressly  provided,  the  term
                  "generally accepted accounting principles" with respect to any
                  computation  required or permitted  hereunder  shall mean such
                  accounting principles as are generally accepted at the date of
                  such computation; and

                      (3) the words "herein", "hereof" and "hereunder" and other
                  words of similar import refer to this Indenture as a whole and
                  not to any particular Article, Section or other subdivision.

     "Act", when used with respect to any Holder of a Security,  has the meaning
specified in Section 1.4.

     "Affiliate"  of any  specified  Person means any other  Person  directly or
indirectly  controlling  or  controlled  by or under  direct or indirect  common
control  with  such  specified  Person.  For the  purposes  of this  definition,
"control",  when used with respect to any specified  Person,  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise;
and the terms  "controlling" and "controlled"  have meanings  correlative to the
foregoing.

     "Agent Member" means any member of, or participant in, the Depositary.

     "Applicable  Procedures" means, with respect to any transfer or transaction
involving  a Global  Security  or  beneficial  interest  therein,  the rules and
procedures of EUROCLEAR and CEDEL,  and of the Depositary for such Security,  in
each case to the extent  applicable  to such  transaction  and as in effect from
time to time.

                                      -59-

<PAGE>

     "Authenticating Agent" means any Person authorized pursuant to Section 6.12
to act on behalf of the Trustee to authenticate Securities.

     "Board of Directors"  means either the board of directors of the Company or
any duly authorized committee of that board.

     "Board  Resolution"  means  a  resolution  duly  adopted  by the  Board  of
Directors, a copy of which, certified by the Secretary or an Assistant Secretary
of the Company to have been duly adopted by the Board of Directors  and to be in
full  force  and  effect  on the date of such  certification,  shall  have  been
delivered to the Trustee.

     "Business  Day",  when used with respect to any Place of Payment,  Place of
Conversion or any other place,  as the case may be, means each Monday,  Tuesday,
Wednesday,  Thursday and Friday which is not a day on which banking institutions
in such Place of Payment,  Place of Conversion  or other place,  as the case may
be, are  authorized or obligated by law or executive  order to close;  provided,
however,  that a day on which  banking  institutions  in New York,  New York are
authorized  or  obligated  by law or  executive  order to close  shall  not be a
Business Day for purposes of Sections 10.1, 10.3, 11.6 or 13.9.

     "CEDEL"  means Cedel  Bank,  S.A.  (or any  successor  securities  clearing
agency).

     "Change in Control" has the meaning specified in Section 14.4.

     "Closing  Price Per Share"  means,  with respect to the Common Stock of the
Company,  for any day,  the  reported  last bid price  per  share on the  Nasdaq
National  Market  or, if the Common  Stock is not quoted on the Nasdaq  National
Market, on the principal national  securities exchange on which the Common Stock
is listed or admitted to trading, or if not quoted on the Nasdaq National Market
or listed or  admitted  to  trading on any  national  securities  exchange,  the
average of the closing bid and asked  prices in the  over-the-counter  market as
furnished by any New York Stock Exchange  member firm selected from time to time
by the Company for that purpose.

     "Code" has the meaning specified in Section 2.1.

     "Commission" means the United States Securities and Exchange Commission, as
from time to time  constituted,  created  under the Exchange  Act, or, if at any
time after the execution of this  instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties at such time.

     "Common  Stock" means the Common Stock,  par value $0.01 per share,  of the
Company  authorized  at the  date of this  instrument  as  originally  executed.
Subject to the provisions

                                      -60-

<PAGE>

of Section  12.11,  shares  issuable on  conversion  or repurchase of Securities
shall  include  only shares of Common Stock or shares of any class or classes of
common stock resulting from any reclassification or  reclassifications  thereof;
provided,  however,  that if at any  time  there  shall  be more  than  one such
resulting  class,  the shares so  issuable on  conversion  of  Securities  shall
include  shares of all such  classes,  and the shares of each such class then so
issuable  shall be  substantially  in the  proportion  which the total number of
shares of such  class  resulting  from all such  reclassifications  bears to the
total   number  of  shares  of  all  such  classes   resulting   from  all  such
reclassifications.

     "common  stock"  includes any stock of any class of capital stock which has
no preference in respect of dividends or of amounts  payable in the event of any
voluntary or  involuntary  liquidation,  dissolution or winding up of the issuer
thereof and which is not subject to redemption by the issuer thereof.

     "Company" means the Person named as the "Company" in the first paragraph of
this instrument  until a successor Person shall have become such pursuant to the
applicable  provisions of this  Indenture,  and thereafter  "Company" shall mean
such successor Person.

     "Company Notice" has the meaning specified in Section 14.3.

     "Company  Request"  means a written  request or order signed in the name of
the Company by its Chairman of the Board,  its Vice  Chairman of the Board,  its
Chief Executive Officer, its President or a Vice President, and by its principal
financial  officer,  Treasurer,  an  Assistant  Treasurer,  its  Secretary or an
Assistant Secretary, and delivered to the Trustee.

     "Constituent Person" has the meaning specified in Section 12.11.

     "Conversion  Agent" means any Person  authorized  by the Company to convert
Securities  in  accordance  with  Article  Twelve.  The  Company  has  initially
appointed the Trustee as its Conversion  Agent in the Borough of Manhattan,  The
City of New York.

     "Conversion Rate" has the meaning specified in Section 12.1.

     "Corporate  Trust Office"  means  the  office  of  the  Trustee  at   which
at  any  particular  time  its  corporate  trust  business  shall be principally
administered (which at the date of this Indenture is located  at  140  Broadway,
12th Floor, New York, New York 10005).

     "corporation"  means  a  corporation,  company,  association,   joint-stock
company or business trust.

     "Defaulted Interest" has the meaning specified in Section 3.7.

                                      -61-
<PAGE>

     "Depositary" means, with respect to any Security, a clearing agency that is
registered  as such under the Exchange Act and is  designated  by the Company to
act as Depositary for such Security (or any successor securities clearing agency
so registered).


     "Dollar" or  "U.S.$" means a dollar or other  equivalent  unit in such coin
or currency of the  United  States as at the time shall be legal  tender for the
payment of public and private debts.

     "DTC" means The Depository Trust Company, a New York corporation.

     "EUROCLEAR"  means  the  Euroclear   Clearance  System  (or  any  successor
securities clearing agency).

     "Event of Default" has the meaning specified in Section 5.1.

     "Exchange Act" means the United States Securities  Exchange Act of 1934 (or
any successor statute), as amended from time to time.

     "Exchange  Date"  means  the date and day on which  the  Restricted  Period
expires.

     "Global  Security"  means a Security  that is  registered  in the  Security
Register in the name of a Depositary or a nominee thereof.

     "Holder", when used with respect to any Security, means the Person in whose
name the Security is registered in the Security Register.

     "Indenture" means this instrument as originally  executed or as it may from
time to time be supplemented  or amended by one or more indentures  supplemental
hereto entered into pursuant to the applicable provisions hereof, including, for
all  purposes  of this  instrument  and any  such  supplemental  indenture,  the
provisions of the Trust Indenture Act that are deemed to be a part of and govern
this instrument and any such supplemental indenture, respectively.

     "Initial  Purchasers"  means Goldman,  Sachs & Co. and Bear,  Stearns & Co.
Inc.

     "Interest  Payment  Date" means the Stated  Maturity of an  installment  of
interest on the Securities.

     "Liquidated Damages" has the meaning specified in Section 10.11.

                                      -62-

<PAGE>

     "Maturity", when used with respect to any Security, means the date on which
the  principal  of such  Security  becomes  due and payable as therein or herein
provided, whether at the Stated Maturity or by declaration of acceleration, call
for redemption,  exercise of the repurchase  right set forth in Article Fourteen
or otherwise.

     "Non-electing Share" has the meaning specified in Section 12.11.

     "Officers'  Certificate"  means a certificate signed by the Chairman of the
Board, a Vice Chairman of the Board, the Chief Executive Officer,  the President
or a Vice President and by the principal  financial officer,  the Treasurer,  an
Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and
delivered to the Trustee.

     "Opinion of Counsel" means a written opinion of counsel, who may be counsel
for the Company and who shall be reasonably acceptable to the Trustee.

     "Outstanding",  when used with respect to Securities, means, as of the date
of determination,  all Securities theretofore  authenticated and delivered under
this Indenture, except:

                      (i)  Securities  theretofore  cancelled  by the Trustee or
                  delivered to the Trustee for cancellation;

                      (ii)  Securities  for the payment or  redemption  of which
                  money in the necessary amount has been  theretofore  deposited
                  with the Trustee or any Paying  Agent (other than the Company)
                  in trust or set aside and  segregated  in trust by the Company
                  (if the  Company  shall act as its own  Paying  Agent) for the
                  Holders of such  Securities,  provided that if such Securities
                  are to be redeemed,  notice of such  redemption  has been duly
                  given  pursuant  to  this  Indenture  or  provision   therefor
                  satisfactory to the Trustee has been made; and

                      (iii)  Securities which have been paid pursuant to Section
                  3.6 or in exchange  for or in lieu of which  other  Securities
                  have  been   authenticated  and  delivered  pursuant  to  this
                  Indenture,  other than any such Securities in respect of which
                  there  shall  have  been   presented  to  the  Trustee   proof
                  satisfactory  to it that  such  Securities  are held by a bona
                  fide  purchaser  in whose  hands  such  Securities  are  valid
                  obligations of the Company;

provided,  however,  that in  determining  whether the Holders of the  requisite
principal  amount of Outstanding  Securities are present at a meeting of Holders
of  Securities  for  quorum   purposes  or  have  given  any  request,   demand,
authorization,  direction, notice, consent or waiver hereunder, Securities owned
by the Company or any other obligor upon the  Securities or any Affiliate of the

                                      -63-

<PAGE>

Company  or such  other  obligor  shall  be  disregarded  and  deemed  not to be
Outstanding,  except that, in determining whether the Trustee shall be protected
in relying  upon any such  determination  as to the presence of a quorum or upon
any such request, demand,  authorization,  direction, notice, consent or waiver,
only Securities which a Responsible  Officer of the Trustee actually knows to be
so owned shall be so disregarded. Securities so owned which have been pledged in
good faith may be regarded as  Outstanding  if the  pledgee  establishes  to the
satisfaction  of the Trustee the pledgee's  right so to act with respect to such
Securities and that the pledgee is not the Company or any other obligor upon the
Securities or any Affiliate of the Company or such other obligor.

     "Paying  Agent"  means any  Person  authorized  by the  Company  to pay the
principal of or interest on any Securities on behalf of the Company and,  except
as otherwise  specifically set forth herein, such term shall include the Company
if it shall act as its own Paying Agent. The Company has initially appointed the
Trustee as its Paying Agent in the Borough of Manhattan, The City of New York.

     "Person" means any  individual,  corporation,  limited  liability  company,
partnership,  joint  venture,  trust,  estate,  unincorporated  organization  or
government or any agency or political subdivision thereof.

     "Place  of  Conversion"  has  the  meaning   specified  in   Section   3.1.

     "Place of Payment" has the meaning specified in Section 3.1.

     "Predecessor  Security" of any  particular  Security  means every  previous
Security  evidencing all or a portion of the same debt as that evidenced by such
particular  Security;  and,  for the purposes of this  definition,  any Security
authenticated  and  delivered  under Section 3.6 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

     "Purchase  Agreement"  means the  Purchase  Agreement,  dated as of May 17,
1996, between the Company and the Initial  Purchasers,  as such agreement may be
amended from time to time.

     "Record Date" means any Regular Record Date or Special Record Date.

     "Record  Date  Period"  means the period  from the close of business of any
Regular Record Date next  preceding any Interest  Payment Date to the opening of
business on such Interest Payment Date.

                                      -64-
<PAGE>

     "Redemption  Date",  when used with respect to any Security to be redeemed,
means the date fixed for such redemption by or pursuant to this Indenture.

     "Redemption  Price", when used with respect to any Security to be redeemed,
means the price at which it is to be redeemed pursuant to this Indenture.

     "Registrable  Securities"  has the meaning  specified in Section  10.11.

     "Registration  Default"  has the meaning  specified  in Section  10.11.

     "Registration Rights Agreement" has the meaning specified in Section 10.11.

     "Regular  Record Date" for  interest  payable in respect of any Security on
any  Interest  Payment  Date means the May 1 or  November  1  (whether  or not a
Business Day), as the case may be, next preceding such Interest Payment Date.

     "Regulation  D  Securities"  means  the  Securities  sold  by  the  Initial
Purchasers in the initial  offering  contemplated  by the Purchase  Agreement in
reliance on an exemption from the  registration  requirements  of the Securities
Act other than Rule 144A or Regulation S.

     "Regulation  S"  means  Regulation  S  under  the  Securities  Act  (or any
successor provision), as it may be amended from time to time.

     "Regulation S Certificate"  means a certificate  substantially  in the form
set forth in Annex A.

     "Regulation  S  Global  Security"  has the  meaning  specified  in  Section
2.1.

     "Regulation  S  Legend"  means a  legend  substantially  in the form of the
legend  required in the form of  Security  set forth in Section 2.2 to be placed
upon a Regulation S Global Security.

     "Regulation S Securities" means all Securities required pursuant to Section
3.5(c) to bear a Regulation S Legend. Such term includes the Regulation S Global
Security.

     "Repurchase Date" has the meaning specified in Section 14.1.

     "Repurchase Price" has the meaning specified in Section 14.1.

                                      -65-

     "Responsible  Officer",  when used with respect to the  Trustee,  means any
officer  within the  Corporate  Trust  Office of the Trustee  including  without
limitation any vice president,  assistant vice president,  assistant  treasurer,
assistant secretary,  corporate trust officer, assistant corporate trust officer
or other employee of the Trustee  customarily  performing  functions  similar to
those  performed by any of the above  designated  officers and also means,  with
respect to a particular  corporate trust matter,  any other officer to whom such
matter is referred  because of his knowledge and familiarity with the particular
subject.

     "Restricted  Global Security" has the meaning specified in Section 2.1.

     "Restricted  Period" means the period of 41  consecutive  days beginning on
and including the later of (i) the day on which  Securities are first offered to
persons  other than  distributors  (as defined in  Regulation  S) in reliance on
Regulation S and (ii) the last original issuance date of the Securities.

     "Restricted  Securities" means all Securities  required pursuant to Section
3.5(c)  to bear  any  Restricted  Securities  Legend.  Such  term  includes  the
Restricted Global Security.

     "Restricted  Securities  Certificate" means a certificate  substantially in
the form set forth in Annex B.

     "Restricted   Securities   Legend"   means,   collectively,   the   legends
substantially  in the forms of the legends  required in the form of Security set
forth in Section 2.2(b) to be placed upon each Restricted Security.

     "Rule  144A"  means Rule 144A under the  Securities  Act (or any  successor
provision), as it may be amended from time to time.

     "Rule 144A  Information"  has the  meaning  specified  in  Section  10.9.

     "Rule  144A  Securities"  means the  Securities  purchased  by the  Initial
Purchasers from the Company pursuant to the Purchase Agreement and resold by the
Initial Purchasers,  other than the Regulation D Securities and the Regulation S
Securities.

     "Securities"  has the meaning  ascribed to it in the first  paragraph under
the caption "Recitals of the Company".

     "Securities  Act" means the United  States  Securities  Act of 1933 (or any
successor statute), as amended from time to time.

                                      -66-

     "Securities  Act  Legend"  means  a  Restricted   Securities  Legend  or  a
Regulation S Legend.

     "Security  Register" and "Security Registrar" have the respective  meanings
specified  in Section 3.5.

     "Senior  Debt" means the  principal of (and  premium,  if any) and interest
(including  all  interest  accruing   subsequent  to  the  commencement  of  any
bankruptcy  or  similar  proceeding,  whether  or not a claim for  post-petition
interest is  allowable as a claim in any such  proceeding)  on, and all fees and
other amounts (including,  without limitation,  collection expenses,  attorneys'
fees and late charges owing) with respect to, the  following,  whether direct or
indirect,  absolute or contingent,  secured or unsecured,  due or to become due,
outstanding  on the date of the  Indenture or  thereafter  created,  incurred or
assumed:  (a)  indebtedness  of the Company other than the  Securities,  whether
outstanding  on the date of this  Indenture or thereafter  created,  incurred or
assumed,  which is (i) for money borrowed or (ii) evidenced by a note or similar
instrument   given  in  connection  with  the  acquisition  of  any  businesses,
properties or assets of any kind, including securities,  (b) indebtedness of the
Company to banks,  insurance companies or other financial institutions evidenced
by  notes  or  other  written  obligations  (including  bank  overdrafts),   (c)
indebtedness  of the  Company  evidenced  by notes,  debentures,  bonds or other
securities  issued under the  provisions of an indenture or similar  instrument,
(d) indebtedness of others of the kinds described in the preceding  clauses (a),
(b) and (c) that the Company has assumed,  guaranteed  or otherwise  assured the
payment  thereof,  directly or  indirectly,  (e)  obligations  of the Company as
lessee  under  leases  required to be  capitalized  on the balance  sheet of the
lessee  under  United  States  generally  accepted  accounting  principles,  (f)
obligations of the Company under interest rate and currency swaps, caps, floors,
collars or similar  agreements or  arrangements  intended to protect the Company
against  fluctuations in interest or currency  exchange rates and (g) deferrals,
renewals,  extensions and refundings  of, or bonds,  debentures,  notes or other
evidences of indebtedness  issued in exchange for, or amendments,  modifications
or  supplements  to,  or  covenants  and other  obligations  of the  Company  in
connection with, the indebtedness described in the preceding clauses (a) through
(g) of this  paragraph;  whether or not there is any notice to or consent of the
Holders of Securities;  except (I)  indebtedness  and advances among the Company
and its direct and indirect Subsidiaries,  and (II) any particular indebtedness,
deferral,  renewal,  extension or  refunding,  if it is expressly  stated in the
governing terms or in the assumption  thereof that the indebtedness  involved is
not Senior Debt.

     "Shelf  Registration  Statement"  has  the  meaning  specified  in  Section
10.11.

     "Special  Record Date" for the payment of any  Defaulted  Interest  means a
date fixed by the Company pursuant to Section 3.7.

                                      -67-

<PAGE>

     "Stated  Maturity",   when  used  with  respect  to  any  Security  or  any
installment  of interest  thereon,  means the date specified in such Security as
the fixed date on which the  principal of such Security or such  installment  of
interest is due and payable.

     "Subsidiary"  means a corporation  more than 50% of the outstanding  voting
stock of which is owned,  directly  or  indirectly,  by the Company or by one or
more other  Subsidiaries,  or by the Company and one or more other Subsidiaries.
For the purposes of this definition, "voting stock" means stock or other similar
interests in the corporation  which  ordinarily has or have voting power for the
election of directors,  or persons performing similar functions,  whether at all
times or only so long as no senior class of stock or other interests has or have
such voting power by reason of any contingency.

     "Successor Security" of any particular Security means every Security issued
after,  and  evidencing  all or a portion of the same debt as that evidenced by,
such particular Security; and, for the purposes of this definition, any Security
authenticated  and  delivered  under Section 3.6 in exchange for or in lieu of a
mutilated,  destroyed,  lost or stolen  Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

     "Surrender  Certificate" means a certificate  substantially in the form set
forth in Annex D.

     "Trading  Days"  means (i) if the  Common  Stock is  quoted  on the  Nasdaq
National Market or any other system of automated  dissemination of quotations of
securities  prices,  days on which  trades may be effected  through such system;
(ii) if the Common  Stock is listed or  admitted  for  trading  on any  national
securities exchange, days on which such national securities exchange is open for
business;  or (iii) if the Common Stock is not listed or admitted for trading on
any national  securities exchange or quoted on the Nasdaq National Market or any
other system of automated  dissemination of quotation of securities prices, days
on which the Common Stock is traded regular way in the  over-the-counter  market
and for which a closing bid and a closing  asked price for the Common  Stock are
available.

     "Transfer Agent" has the meaning  specified in Section 2.2. The Company has
initially  appointed  the  Trustee  as its  Transfer  Agent  in the  Borough  of
Manhattan, The City of New York.

     "Trust  Indenture Act" means the Trust Indenture Act of 1939 as in force at
the date as of which this instrument was executed;  provided,  however,  that in
the event the Trust  Indenture  Act of 1939 is amended  after such date,  "Trust
Indenture Act" means, to the extent  required by any such  amendment,  the Trust
Indenture Act of 1939 as so amended.

                                      -68-

<PAGE>

     "Trustee" means the Person named as the "Trustee" in the first paragraph of
this instrument until a successor Trustee shall have become such pursuant to the
applicable  provisions of this  Indenture,  and thereafter  "Trustee" shall mean
such successor Trustee.

     "United  States" means the United States of America  (including  the States
and the District of Columbia), its territories,  its possessions and other areas
subject to its jurisdiction (its  "possessions"  including Puerto Rico, the U.S.
Virgin  Islands,  Guam,  American  Samoa,  Wake Island and the Northern  Mariana
Islands).

     "Unrestricted Securities Certificate" means a certificate  substantially in
the form set forth in Annex C.

     "Vice  President",  when used with respect to the  Company,  means any vice
president, whether or not designated by a number or a word or words added before
or after the title "vice president".

SECTION 1.2.    Compliance Certificates and Opinions.

     Upon any  application  or request by the Company to the Trustee to take any
action under any provision of this  Indenture,  the Company shall furnish to the
Trustee an Officers' Certificate stating that all conditions precedent,  if any,
provided  for in this  Indenture  relating  to the  proposed  action  have  been
complied  with and an  Opinion of Counsel  stating  that in the  opinion of such
counsel all such conditions  precedent,  if any, have been complied with, except
that in the case of any such  application  or request as to which the furnishing
of such  documents is  specifically  required by any provision of this Indenture
relating to such particular application or request, no additional certificate or
opinion need be furnished.

     Every certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture (including  certificates provided for in
Section 10.8) shall include:

                      (1)  a  statement  that  each   individual   signing  such
                  certificate or opinion has read such covenant or condition and
                  the definitions herein relating thereto;

                      (2) a brief  statement  as to the  nature and scope of the
                  examination  or  investigation  upon which the  statements  or
                  opinions contained in such certificate or opinion are based;

                      (3) a statement  that, in the opinion of such  individual,
                  he has made such  examination or investigation as is necessary
                  to enable him to express an informed  opinion as to whether or
                  not such covenant or condition has been complied with; and

                                      -69-

<PAGE>

                      (4) a statement as to whether, in the opinion of each such
                  individual, such condition or covenant has been complied with.

SECTION 1.3.      Form of Documents Delivered to the Trustee

     In any case where  several  matters  are  required to be  certified  by, or
covered by an opinion of, any specified  Person,  it is not  necessary  that all
such  matters  be  certified  by, or covered by the  opinion  of,  only one such
Person,  or that they be so certified or covered by only one  document,  but one
such Person may certify or give an opinion  with respect to some matters and one
or more other such Persons as to other matters,  and any such Person may certify
or give an opinion as to such matters in one or several documents.

     Any  certificate  or opinion of an  officer  of the  Company  may be based,
insofar as it relates to legal  matters,  upon a  certificate  or opinion of, or
representations  by,  counsel,  unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or  representations
with respect to the matters upon which such  certificate or opinion is based are
erroneous.  Any such certificate or opinion of counsel may be based,  insofar as
it  relates  to  factual   matters,   upon  a  certificate  or  opinion  of,  or
representations  by, an officer or  officers  of the  Company  stating  that the
information  with respect to such factual  matters is in the  possession  of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know,  that the certificate or opinion or  representations  with respect to such
matters are erroneous.

     Where  any  Person  is  required  to  make,  give  or  execute  two or more
applications,  requests, consents,  certificates,  statements, opinions or other
instruments  under this Indenture,  they may, but need not, be consolidated  and
form one instrument.

                                      -70-
<PAGE>

SECTION 1.4.      Acts of Holders of Securities.

     (a) Any request, demand, authorization,  direction, notice, consent, waiver
or other action  provided or permitted by this Indenture to be given or taken by
Holders  of  Securities  may be  embodied  in and  evidenced  by (1) one or more
instruments of  substantially  similar tenor signed by such Holders in person or
by an agent or proxy duly appointed in writing by such Holders or (2) the record
of Holders of Securities voting in favor thereof, either in person or by proxies
duly appointed in writing,  at any meeting of Holders of Securities  duly called
and held in accordance  with the  provisions of Article Nine.  Such action shall
become  effective when such  instrument or instruments or record is delivered to
the Trustee and,  where it is hereby  expressly  required,  to the Company.  The
Trustee shall promptly deliver to the Company copies of all such instruments and
records delivered to the Trustee. Such instrument or instruments and record (and
the action embodied therein and evidenced thereby) are herein sometimes referred
to as the  "Act"  of the  Holders  of  Securities  signing  such  instrument  or
instruments  and so  voting  at such  meeting.  Proof of  execution  of any such
instrument or of a writing appointing any such agent or proxy, or of the holding
by any  Person  of a  Security,  shall be  sufficient  for any  purpose  of this
Indenture  and (subject to Section 6.1)  conclusive  in favor of the Trustee and
the Company if made in the manner  provided in this  Section.  The record of any
meeting of  Holders of  Securities  shall be proved in the  manner  provided  in
Section 9.6.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate  of a notary  public  or  other  officer  authorized  by law to take
acknowledgements   of  deeds,   certifying  that  the  individual  signing  such
instrument  or writing  acknowledged  to him the execution  thereof.  Where such
execution  is by a  signer  acting  in a  capacity  other  than  his  individual
capacity,  such certificate or affidavit shall also constitute  sufficient proof
of his authority.

     (c) The  principal  amount and serial  number of any  Security  held by any
Person,  and the date of his holding the same,  shall be proved by the  Security
Register.

     (d) The fact and date of  execution of any such  instrument  or writing and
the  authority of the Person  executing the same may also be proved in any other
manner which the Trustee deems  sufficient;  and the Trustee may in any instance
require  further  proof with  respect to any of the matters  referred to in this
Section 1.4.

     (e) The  Company  may set any day as the  record  date for the  purpose  of
determining  the  Holders  entitled  to  give  or  take  any  request,   demand,
authorization, direction, notice, consent, waiver or other action, or to vote on
any action,  authorized  or permitted by this  Indenture to be given or taken by
Holders. Promptly and in any case not later than ten days after setting a

                                      -71-

<PAGE>

record date, the Company shall notify the Trustee and the Holders of such record
date. If not set by the Company prior to the first solicitation of a Holder made
by any Person in respect of any such  action,  or, in the case of any such vote,
prior to such  vote,  the record  date for any such  action or vote shall be the
30th day (or, if later,  the date of the most recent list of Holders required to
be provided pursuant to Section 15.1) prior to such first  solicitation or vote,
as the case may be. With regard to any record date, the Holders on such date (or
their  duly  appointed  agents  or  proxies),  and only such  Persons,  shall be
entitled to give or take, or vote on, the relevant  action,  whether or not such
Holders  remain Holders after such record date.  Notwithstanding  the foregoing,
the  Company  shall  not set a  record  date  for,  and the  provisions  of this
paragraph shall not apply with respect to, any notice,  declaration or direction
referred to in the next paragraph.

     Upon receipt by the Trustee from any Holder of (i) any notice of default or
breach referred to in Section 5.1(4), if such default or breach has occurred and
is continuing and the Trustee shall not have given such a notice to the Company,
(ii) any declaration of acceleration  referred to in Section 5.2, if an Event of
Default has occurred and is continuing and the Trustee shall not have given such
a  declaration  to the Company,  or (iii) any  direction  referred to in Section
5.12,  if the  Trustee  shall  not  have  taken  the  action  specified  in such
direction,  then a record date shall automatically and without any action by the
Company or the Trustee be set for  determining  the Holders  entitled to join in
such notice,  declaration or direction,  which record date shall be the close of
business  on the tenth day (or,  if such day is not a  Business  Day,  the first
Business Day  thereafter)  following the day on which the Trustee  receives such
notice,  declaration  or direction.  Promptly after such receipt by the Trustee,
and as soon as practicable thereafter,  the Trustee shall notify the Company and
the Holders of any such  record  date so fixed.  The Holders on such record date
(or their duly  appointed  agents or proxies),  and only such Persons,  shall be
entitled to join in such notice,  declaration or direction,  whether or not such
Holders  remain  Holders  after such record  date;  provided  that,  unless such
notice,  declaration  or  direction  shall have  become  effective  by virtue of
Holders of the requisite  principal amount of Securities on such record date (or
their duly appointed agents or proxies) having joined therein on or prior to the
90th day after such record date,  such notice,  declaration  or direction  shall
automatically  and  without  any  action by any  Person be  cancelled  and of no
further effect. Nothing in this paragraph shall be construed to prevent a Holder
(or a duly appointed  agent or proxy  thereof) from giving,  before or after the
expiration of such 90-day period, a notice, declaration or direction contrary to
or different  from, or, after the  expiration of such period,  identical to, the
notice,  declaration  or direction to which such record date  relates,  in which
event a new  record  date in  respect  thereof  shall  be set  pursuant  to this
paragraph.  In addition,  nothing in this paragraph shall be construed to render
ineffective any notice, declaration or direction of the type referred to in this
paragraph  given at any time to the Trustee and the Company by Holders (or their
duly  appointed  agents  or  proxies)  of  the  requisite  principal  amount  of
Securities on the date such notice, declaration or direction is so given.

                                      -72-
    
<PAGE>
     (f) Except as provided  in Sections  5.12 and 5.13,  any  request,  demand,
authorization,  direction, notice, consent, election, waiver or other Act of the
Holder of any Security  shall bind every future  Holder of the same Security and
the Holder of every Security issued upon the registration of transfer thereof or
in exchange therefor or in lieu thereof in respect of anything done,  omitted or
suffered to be done by the Trustee or the Company in reliance  thereon,  whether
or not notation of such action is made upon such Security.

     (g) The  provisions  of this Section 1.4 are subject to the  provisions  of
Section 9.5.

SECTION 1.5.      Notices, Etc., to Trustee and Company.

     Any request, demand,  authorization,  direction, notice, consent, election,
waiver or other Act of Holders  of  Securities  or other  document  provided  or
permitted  by this  Indenture to be made upon,  given or furnished  to, or filed
with,

                      (1) the  Trustee  by any  Holder of  Securities  or by the
                  Company  shall be sufficient  for every  purpose  hereunder if
                  made,  given,  furnished  or filed in  writing  to or with the
                  Trustee and received at its Corporate Trust Office, Attention:
                  Corporate Trust Services--BroadBand Technologies, Inc., or

                      (2)  the  Company  by  the  Trustee  or by any  Holder  of
                  Securities  shall be sufficient  for every  purpose  hereunder
                  (unless  otherwise herein  expressly  provided) if in writing,
                  mailed,   first-class   postage  prepaid,  or  telecopied  and
                  confirmed by mail,  first-class  postage prepaid, or delivered
                  by hand or overnight courier, addressed to the Company at 4024
                  Stirrup Creek Drive,  Durham,  North Carolina 27703,  telecopy
                  no.: (919) 361-2059, Attention: Chief Financial Officer, or at
                  any other  address  previously  furnished  in  writing  to the
                  Trustee by the Company.

     Any request, demand, authorization, direction, notice, consent, election or
waiver  required  or  permitted  under this  Indenture  shall be in the  English
language.

SECTION 1.6.      Notice to Holders of Securities; Waiver.

     Except  as  otherwise  expressly  provided  herein,  where  this  Indenture
provides for notice to Holders of any event,  such notice shall be  sufficiently
given if in writing  and mailed,  first-class  postage  prepaid,  to each Holder
affected  by such  event,  at the  address  of such  Holder as it appears in the
Security  Register,  not earlier than the  earliest  date and not later than the
latest date prescribed for the giving of such notice.

                                      -73-

<PAGE>

     In any case where notice is given by mail, neither the failure to mail such
notice,  nor any defect in any notice so mailed,  to any particular Holder shall
affect the sufficiency of such notice with respect to other Holders.  In case by
reason of the suspension of regular mail service or by reason of any other cause
it shall be impracticable to give such notice by mail, then such notification as
shall be made with the  approval of the  Trustee,  which  approval  shall not be
unreasonably  withheld,  shall  constitute  a  sufficient  notification  to such
Holders for every purpose hereunder.

     Such notice shall be deemed to have been given when such notice is mailed.

     Where this Indenture provides for notice in any manner,  such notice may be
waived in writing by the Person  entitled to receive such notice,  either before
or after the event,  and such waiver  shall be the  equivalent  of such  notice.
Waivers of notice by Holders of Securities shall be filed with the Trustee,  but
such filing  shall not be a condition  precedent  to the  validity of any action
taken in reliance upon such waiver.

SECTION 1.7.    Effect of Headings and Table of Contents.

     The Article and Section  headings  herein and the Table of Contents are for
convenience only and shall not affect the construction hereof.

SECTION 1.8.      Successors and Assigns.

     All  covenants and  agreements in this  Indenture by the Company shall bind
its successors and assigns, whether so expressed or not.

SECTION 1.9.      Separability Clause.

     In case any provision in this Indenture or the Securities shall be invalid,
illegal or  unenforceable,  the  validity,  legality and  enforceability  of the
remaining provisions shall not in any way be affected or impaired thereby.

SECTION 1.10.     Benefits of Indenture.

     Except as provided in the next  sentence,  nothing in this  Indenture or in
the  Securities,  express or implied,  shall give to any Person,  other than the
parties  hereto and their  successors  and assigns  hereunder and the Holders of
Securities,  any benefit or legal or equitable right, remedy or claim under this
Indenture. The provisions of Article Thirteen are intended to be for the benefit
of, and shall be enforceable directly by, the holders of Senior Debt.

                                      -74-

<PAGE>

SECTION 1.11.    Governing Law.

     THIS  INDENTURE  AND THE  SECURITIES  SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, THE UNITED STATES OF AMERICA.

SECTION 1.12.     Legal Holidays.

     In any case where any Interest Payment Date,  Redemption  Date,  Repurchase
Date or Stated  Maturity of any  Security or the last day on which a Holder of a
Security  has a right to convert his  Security  shall not be a Business Day at a
Place  of  Payment  or  Place  of   Conversion,   as  the  case  may  be,   then
(notwithstanding  any other  provision of this  Indenture or of the  Securities)
payment of principal of, premium,  if any, or interest on, or the payment of the
Repurchase  Price  (whether  the same is  payable in cash or in shares of Common
Stock) with respect to, or delivery for conversion of, such Security need not be
made at such Place of Payment or Place of Conversion,  as the case may be, on or
by such day, but may be made on or by the next  succeeding  Business Day at such
Place of Payment or Place of Conversion, as the case may be, with the same force
and  effect  as if  made  on the  Interest  Payment  Date,  Redemption  Date  or
Repurchase  Date, or at the Stated  Maturity or by such last day for conversion;
provided,  however,  that in the case that  payment  is made on such  succeeding
Business  Day, no interest  shall accrue on the amount so payable for the period
from and after such Interest  Payment Date,  Redemption  Date,  Repurchase Date,
Stated  Maturity  or  last  day  for  conversion,  as the  case  may be to  such
succeeding Business Day.

SECTION 1.13.     Conflict with Trust Indenture Act.

     If any provision hereof limits,  qualifies or conflicts with a provision of
the Trust  Indenture  Act that is  required  under  such Act to be a part of and
govern this  Indenture,  the latter  provision of the Trust  Indenture Act shall
control.  If any provision of this Indenture  modifies or excludes any provision
of the Trust  Indenture  Act that may be so  modified  or  excluded,  the latter
provision of the Trust  Indenture Act shall be deemed to apply to this Indenture
as so modified or to be  excluded,  as the case may be.  Until such time as this
Indenture shall be qualified under the Trust Indenture Act, this Indenture,  the
Company and the Trustee shall be deemed for all purposes hereof to be subject to
and governed by the Trust  Indenture Act to the same extent as would be the case
if this Indenture were so qualified on the date hereof.

                                      -75-
<PAGE>


                                   ARTICLE TWO

                                 SECURITY FORMS


SECTION 2.1.  Forms Generally.

     The  Securities  shall be in  substantially  the  forms  set  forth in this
Article, with such appropriate  insertions,  omissions,  substitutions and other
variations  as are required or permitted  by this  Indenture,  and may have such
letters,   numbers  or  other  marks  of  identification  and  such  legends  or
endorsements  placed  thereon as may be required to comply with the rules of any
securities  exchange,  the  Internal  Revenue  Code of  1986,  as  amended,  and
regulations  thereunder  (the  "Code"),  or as may,  consistently  herewith,  be
determined  by the officers  executing  such  Securities,  as evidenced by their
execution thereof.

     The Trustee's  certificates of authentication shall be in substantially the
form set forth in Section 2.3.

     Conversion  notices shall be in substantially the form set forth in Section
2.4.

     Repurchase  notices shall be substantially in the form set forth in Section
2.2.

     The Securities  shall be printed,  lithographed  or engraved or produced by
any combination of these methods on steel engraved borders or may be produced in
any other manner permitted by the rules of any securities  exchange on which the
Securities  may be listed,  all as  determined  by the officers  executing  such
Securities,  as evidenced by their execution thereof.  The format and spacing of
the text of a Security may be varied to facilitate such production.

     Upon their original  issuance,  Rule 144A Securities shall be issued in the
form of a Global Security  registered in the name of DTC, as Depositary,  or its
nominee and deposited with the Trustee,  as custodian for DTC, for credit by DTC
to the respective  accounts of beneficial  owners of the Securities  represented
thereby (or such other  accounts  as they may  direct).  Such  Global  Security,
together with its Successor  Securities  which are Global  Securities other than
the Regulation S Global Security, are collectively herein called the "Restricted
Global Security".

     Upon their original  issuance,  Regulation D Securities shall not be issued
as Securities in the form of a Global  Security or in any other form intended to
facilitate book-entry trading in beneficial interests in such Securities.

                                      -76-

<PAGE>

     Upon their original  issuance,  Regulation S Securities  shall be issued in
the form of a Global Security  registered in the name of DTC, as depositary,  or
its nominee and deposited with the Trustee,  as custodian for DTC, for credit to
the respective accounts of the depositaries for Morgan Guaranty Trust Company of
New York,  Brussels  office,  as operator of  EUROCLEAR,  or CEDEL.  Such Global
Security,  together with its Successor  Securities which are Global  Securities,
are collectively herein called the "Regulation S Global Security".


SECTION 2.2.       Forms of Securities.

                                 [FORM OF FACE]

[THE  FOLLOWING  LEGEND  SHALL  APPEAR  ON THE FACE OF EACH RESTRICTED  SECURITY
OTHER THAN ANY GLOBAL RESTRICTED SECURITY:

     THIS SECURITY (OR ITS PREDECESSOR)  WAS ORIGINALLY  ISSUED IN A TRANSACTION
EXEMPT FROM  REGISTRATION  UNDER THE UNITED  STATES  SECURITIES  ACT OF 1933, AS
AMENDED (THE "SECURITIES ACT"), AND THIS SECURITY AND ANY SHARES OF COMMON STOCK
ISSUABLE UPON ITS  CONVERSION  MAY NOT BE SOLD OR OTHERWISE  TRANSFERRED  IN THE
ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. THIS SECURITY
MAY ONLY BE SOLD IN ACCORDANCE WITH THE INDENTURE, COPIES OF WHICH ARE AVAILABLE
FOR INSPECTION AT THE CORPORATE  TRUST OFFICE OF THE TRUSTEE.  EACH PURCHASER OF
THIS SECURITY WHICH IS A QUALIFIED  INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A
UNDER THE  SECURITIES  ACT) IS HEREBY  NOTIFIED THAT THE SELLER OF THIS SECURITY
MAY BE  RELYING  ON THE  EXEMPTION  FROM  THE  PROVISIONS  OF  SECTION  5 OF THE
SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

     THE  HOLDER  OF  THIS   SECURITY   AGREES  FOR  THE  BENEFIT  OF  BROADBAND
TECHNOLOGIES,  INC.  (THE  "COMPANY")  THAT (A) THIS  SECURITY AND ANY SHARES OF
COMMON STOCK ISSUABLE UPON ITS  CONVERSION  MAY BE RESOLD,  PLEDGED OR OTHERWISE
TRANSFERRED  ONLY  (I) TO A  PERSON  WHO THE  SELLER  REASONABLY  BELIEVES  IS A
QUALIFIED INSTITUTIONAL BUYER (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT)
IN A  TRANSACTION  MEETING THE  REQUIREMENTS  OF RULE 144A,  (II) IN AN OFFSHORE
TRANSACTION  COMPLYING WITH THE PROVISIONS OF RULE 904 OF REGULATION S UNDER THE
SECURITIES  ACT, (III) IN THE CASE OF ANY PURCHASER,  OTHER THAN A PURCHASER WHO
HAS OTHERWISE  AGREED WITH THE COMPANY IN WRITING,  TO AN INSTITUTION THAT IS AN
"ACCREDITED  INVESTOR"  WITHIN THE MEANING OF RULE  501(A)(1),  (2),  (3) OR (7)
UNDER  THE  SECURITIES  ACT  IN  A  TRANSACTION  EXEMPT  FROM  THE  REGISTRATION
REQUIREMENTS  OF  THE  SECURITIES  ACT,  (IV)  PURSUANT  TO  AN  EXEMPTION  FROM
REGISTRATION  UNDER THE  SECURITIES  ACT  PROVIDED  BY RULE 144  THEREUNDER  (IF
AVAILABLE),  OR (V) PURSUANT TO AN EFFECTIVE  REGISTRATION  STATEMENT  UNDER THE
SECURITIES  ACT AND IN EACH OF CASES  (I)  THROUGH  (V) IN  ACCORDANCE  WITH ANY
APPLICABLE  SECURITIES LAWS OF THE STATES AND OTHER  JURISDICTIONS OF THE UNITED
STATES,  AND THAT  (B) THE  HOLDER  WILL,  AND EACH  SUBSEQUENT  HOLDER  OF THIS
SECURITY OR ANY SHARES OF COMMON STOCK  

                                      -77-

<PAGE>

ISSUABLE   UPON  ITS  CONVERSION  IS  REQUIRED  TO, NOTIFY ANY PURCHASER OF THIS
SECURITY AND ANY COMMON STOCK ISSUABLE UPON ITS CONVERSION FROM IT OF THE RESALE
RESTRICTIONS REFERRED TO IN (A) ABOVE.

     THIS SECURITY,  ANY SHARES OF COMMON STOCK ISSUABLE UPON ITS CONVERSION AND
ANY RELATED  DOCUMENTATION  MAY BE AMENDED OR SUPPLEMENTED  FROM TIME TO TIME TO
MODIFY THE  RESTRICTIONS  ON AND PROCEDURES  FOR RESALES AND OTHER  TRANSFERS OF
THIS  SECURITY  AND ANY SUCH SHARES TO REFLECT ANY CHANGE IN  APPLICABLE  LAW OR
REGULATION  (OR THE  INTERPRETATION  THEREOF)  OR IN  PRACTICES  RELATING TO THE
RESALE OR  TRANSFER  OF  RESTRICTED  SECURITIES  GENERALLY.  THE  HOLDER OF THIS
SECURITY AND ANY SUCH SHARES SHALL BE DEEMED BY THE  ACCEPTANCE OF THIS SECURITY
AND ANY SUCH SHARES TO HAVE AGREED TO ANY SUCH AMENDMENT OR SUPPLEMENT.]

[THE FOLLOWING  LEGEND  SHALL  APPEAR  ON  THE  FACE OF EACH  RESTRICTED  GLOBAL
SECURITY:

     THE SECURITIES  EVIDENCED BY THIS GLOBAL SECURITY (OR ITS PREDECESSOR) WERE
ORIGINALLY  ISSUED IN A TRANSACTION  EXEMPT FROM  REGISTRATION  UNDER THE UNITED
STATES  SECURITIES  ACT OF 1933,  AS AMENDED (THE  "SECURITIES  ACT"),  AND SUCH
SECURITIES AND ANY SHARES OF COMMON STOCK ISSUABLE UPON THEIR CONVERSION MAY NOT
BE SOLD OR  OTHERWISE  TRANSFERRED  IN THE  ABSENCE OF SUCH  REGISTRATION  OR AN
APPLICABLE EXEMPTION  THEREFROM.  SUCH SECURITIES MAY ONLY BE SOLD IN ACCORDANCE
WITH THE  INDENTURE,  COPIES  OF  WHICH  ARE  AVAILABLE  FOR  INSPECTION  AT THE
CORPORATE TRUST OFFICE OF THE TRUSTEE. EACH PURCHASER OF ANY BENEFICIAL INTEREST
IN THE SECURITIES WHICH IS A QUALIFIED  INSTITUTIONAL  BUYER (AS DEFINED IN RULE
144A  UNDER THE  SECURITIES  ACT) IS  HEREBY  NOTIFIED  THAT THE  SELLER OF SUCH
BENEFICIAL  INTEREST IN THE  SECURITIES MAY BE RELYING ON THE EXEMPTION FROM THE
PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER.

     EACH BENEFICIAL OWNER OF AN INTEREST IN ANY OF THE SECURITIES  EVIDENCED BY
THIS GLOBAL SECURITY  (INCLUDING ANY  PARTICIPANT IN THE DEPOSITARY  HOLDING THE
GLOBAL SECURITY THAT IS SHOWN AS HOLDING SUCH AN INTEREST ON THE RECORDS OF SUCH
DEPOSITARY AND EACH  BENEFICIAL  OWNER THAT HOLDS THROUGH ANY SUCH  PARTICIPANT)
AGREES FOR THE BENEFIT OF BROADBAND TECHNOLOGIES,  INC. (THE "COMPANY") THAT (A)
ANY  BENEFICIAL  INTEREST  IN THE  SECURITIES  AND ANY  SHARES OF  COMMON  STOCK
ISSUABLE UPON THEIR CONVERSION MAY BE RESOLD,  PLEDGED OR OTHERWISE  TRANSFERRED
ONLY  (I)  TO A  PERSON  WHO  THE  SELLER  REASONABLY  BELIEVES  IS A  QUALIFIED
INSTITUTIONAL  BUYER (AS  DEFINED  IN RULE 144A UNDER THE  SECURITIES  ACT) IN A
TRANSACTION  MEETING  THE  REQUIREMENTS  OF  RULE  144A,  (II)  IN  AN  OFFSHORE
TRANSACTION  COMPLYING WITH THE PROVISIONS OF RULE 904 OF REGULATION S UNDER THE
SECURITIES  ACT, (III) IN THE CASE OF ANY PURCHASER,  OTHER THAN A PURCHASER WHO
HAS OTHERWISE  AGREED WITH THE COMPANY IN WRITING,  TO AN INSTITUTION THAT IS AN
"ACCREDITED  INVESTOR"  WITHIN THE MEANING OF RULE  501(A)(1),  (2),  (3) OR (7)
UNDER  THE  SECURITIES  ACT  IN  A  TRANSACTION  EXEMPT  FROM  THE  REGISTRATION
REQUIREMENTS  OF  THE  

                                      -78-

<PAGE>

SECURITIES  ACT, (IV)  PURSUANT  TO  AN  EXEMPTION FROM  REGISTRATION  UNDER THE
SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF  AVAILABLE),  OR (V) PURSUANT
TO AN EFFECTIVE  REGISTRATION  STATEMENT UNDER THE SECURITIES ACT AND IN EACH OF
CASES (I) THROUGH (V) IN ACCORDANCE  WITH ANY APPLICABLE  SECURITIES LAWS OF THE
STATES AND OTHER JURISDICTIONS OF THE UNITED STATES, AND THAT (B) THE BENEFICIAL
OWNER WILL, AND EACH SUBSEQUENT  BENEFICIAL OWNER OF THIS SECURITY OR ANY SHARES
OF COMMON  STOCK  ISSUABLE  UPON ITS  CONVERSION  IS  REQUIRED  TO,  NOTIFY  ANY
PURCHASER  OF ANY  BENEFICIAL  INTEREST IN THE  SECURITIES  AND ANY COMMON STOCK
ISSUABLE UPON ITS CONVERSION FROM IT OF THE RESALE  RESTRICTIONS  REFERRED TO IN
(A) ABOVE.

     THIS SECURITY,  ANY SHARES OF COMMON STOCK ISSUABLE UPON ITS CONVERSION AND
ANY RELATED  DOCUMENTATION  MAY BE AMENDED OR SUPPLEMENTED  FROM TIME TO TIME TO
MODIFY THE  RESTRICTIONS  ON AND PROCEDURES  FOR RESALES AND OTHER  TRANSFERS OF
THIS  SECURITY  AND ANY SUCH SHARES TO REFLECT ANY CHANGE IN  APPLICABLE  LAW OR
REGULATION  (OR THE  INTERPRETATION  THEREOF)  OR IN  PRACTICES  RELATING TO THE
RESALE OR TRANSFER OF RESTRICTED SECURITIES GENERALLY. THE HOLDER AND BENEFICIAL
OWNERS OF AN INTEREST IN ANY OF THE SECURITIES EVIDENCED BY THIS GLOBAL SECURITY
AND ANY SUCH SHARES SHALL BE DEEMED BY THE  ACCEPTANCE  OF THIS GLOBAL  SECURITY
AND THE BENEFICIAL  INTERESTS  THEREIN AND ANY SUCH SHARES TO HAVE AGREED TO ANY
SUCH AMENDMENT OR SUPPLEMENT.]

[THE FOLLOWING LEGEND SHALL APPEAR ON THE FACE OF EACH GLOBAL SECURITY:

     THIS  SECURITY IS A GLOBAL  SECURITY  WITHIN THE  MEANING OF THE  INDENTURE
HEREINAFTER  REFERRED TO AND IS  REGISTERED  IN THE NAME OF THE  DEPOSITARY OR A
NOMINEE OF THE DEPOSITARY,  WHICH MAY BE TREATED BY THE COMPANY, THE TRUSTEE AND
ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS SECURITY FOR ALL PURPOSES.]

[THE FOLLOWING LEGEND SHALL APPEAR ON THE FACE OF EACH GLOBAL SECURITY FOR WHICH
THE DEPOSITORY TRUST COMPANY IS TO BE THE DEPOSITARY:

     UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION  ("DTC"), TO THE COMPANY OR ITS
AGENT FOR REGISTRATION OR TRANSFER,  EXCHANGE,  OR PAYMENT,  AND ANY CERTIFICATE
ISSUED  IS  REGISTERED  IN THE NAME OF CEDE & CO.  OR IN SUCH  OTHER  NAME AS IS
REQUESTED  BY AN  AUTHORIZED  REPRESENTATIVE  OF DTC (AND ANY PAYMENT IS MADE TO
CEDE  &  CO.  OR  TO  SUCH  OTHER  ENTITY  AS  IS  REQUESTED  BY  AN  AUTHORIZED
REPRESENTATIVE  OF DTC), ANY TRANSFER,  PLEDGE, OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE  BY OR TO ANY PERSON IS  WRONGFUL  INASMUCH  AS THE  REGISTERED  OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

     UNLESS  AND UNTIL IT IS  EXCHANGED  IN WHOLE OR IN PART FOR  SECURITIES  IN
DEFINITIVE REGISTERED FORM IN THE LIMITED CIRCUMSTANCES

                                      -79-
<PAGE>

REFERRED  TO  IN  THE  INDENTURE,  THIS  GLOBAL  SECURITY MAY NOT BE TRANSFERRED
EXCEPT AS A WHOLE BY THE  DEPOSITARY  TO A  NOMINEE  OF THE  DEPOSITARY  OR BY A
NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY
OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR  DEPOSITARY OR A NOMINEE
OF SUCH SUCCESSOR DEPOSITARY.]

[THE FOLLOWING LEGEND SHALL APPEAR ON THE FACE OF EACH REGULATION S SECURITY
OTHER THAN ANY REGULATION S GLOBAL SECURITY:

     THIS SECURITY (OR ITS  PREDECESSOR)  AND THE COMMON STOCK ISSUABLE UPON ITS
CONVERSION  HAVE NOT BEEN REGISTERED  UNDER THE UNITED STATES  SECURITIES ACT OF
1933, AS AMENDED (THE  "SECURITIES  ACT"), AND MAY NOT BE OFFERED OR SOLD WITHIN
THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S.  PERSONS  UNLESS
THIS SECURITY IS REGISTERED  UNDER THE  SECURITIES  ACT OR AN EXEMPTION FROM THE
REGISTRATION  REQUIREMENTS OF THE SECURITIES ACT IS AVAILABLE.  TERMS USED ABOVE
HAVE THE MEANINGS GIVEN THEM IN REGULATION S UNDER THE SECURITIES ACT.]

[THE FOLLOWING  LEGEND  SHALL  APPEAR  ON  THE  FACE OF EACH REGULATION S GLOBAL
SECURITY:

     THE SECURITIES  EVIDENCED BY THIS GLOBAL SECURITY (OR ITS  PREDECESSOR) AND
THE COMMON STOCK ISSUABLE UPON THEIR  CONVERSION HAVE NOT BEEN REGISTERED  UNDER
THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), AND
MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR
BENEFIT OF, U.S.  PERSONS  UNLESS  THESE  SECURITIES  ARE  REGISTERED  UNDER THE
SECURITIES  ACT  OR AN  EXEMPTION  FROM  THE  REGISTRATION  REQUIREMENTS  OF THE
SECURITIES  ACT IS AVAILABLE.  TERMS USED ABOVE HAVE THE MEANINGS  GIVEN THEM IN
REGULATION S UNDER THE SECURITIES ACT.]

                                      -80-
<PAGE>


                             BROADBAND TECHNOLOGIES

                        5% CONVERTIBLE SUBORDINATED NOTE
                                DUE MAY 15, 2001

No. _____________                                                     U.S.$_____

[IF RESTRICTED GLOBAL SECURITY - CUSIP NO. 111309AA8]
[IF ANY REGULATION S SECURITY - CUSIP NO. U11080AA3]
[IF REGULATION S GLOBAL SECURITY - ISIN NO. - USU11080AA35]
[IF REGULATION D SECURITY - CUSIP NO. - 111309AB6]


     BROADBAND  TECHNOLOGIES,  INC., a corporation  duly  organized and existing
under the laws of the State of Delaware (herein called the "Company", which term
includes any  successor  Person under the  Indenture  referred to on the reverse
hereof),  for value  received,  hereby  promises to pay to  _______________,  or
registered  assigns,  the principal sum of  _____________  United States Dollars
(U.S.$  _____) [if this  Security  is a Global  Security,  then insert -- (which
principal  amount may from time to time be  increased or decreased to such other
principal amounts (which, taken together with the principal amounts of all other
Outstanding  Securities,  shall not exceed  $115,000,000 in the aggregate at any
time) by adjustments made on the records of the Trustee hereinafter  referred to
in accordance with the Indenture)] on May 15, 2001 and to pay interest  thereon,
from May 22,  1996,  or from the most recent  Interest  Payment Date (as defined
below) to which  interest has been paid or duly provided for,  semi-annually  in
arrears on May 15 and  November  15 in each year  (each,  an  "Interest  Payment
Date"),  commencing  November 15, 1996,  at the rate of 5% per annum,  until the
principal  hereof  is  due,  and at the  rate  of 5% per  annum  on any  overdue
principal  and  premium,  if any,  and, to the extent  permitted  by law, on any
overdue interest.  The interest so payable, and punctually paid or duly provided
for, on any Interest Payment Date will, as provided in the Indenture, be paid to
the Person in whose name this Security (or one or more  Predecessor  Securities)
is  registered  at the close of  business  on the  Regular  Record Date for such
interest,  which  shall be the May 1 or  November 1  (whether  or not a Business
Day), as the case may be, next preceding such Interest  Payment Date.  Except as
otherwise provided in the Indenture, any such interest not so punctually paid or
duly  provided  for will  forthwith  cease to be  payable  to the Holder on such
Regular  Record  Date and may  either be paid to the  Person in whose  name this
Security (or one or more  Predecessor  Securities) is registered at the close of
business on a Special Record Date for the payment of such Defaulted  Interest to
be fixed by the Company,  notice whereof shall be given to Holders of Securities
not less than 10 days prior to such Special  Record Date, or be paid at any time
in any  other  lawful  manner  not  inconsistent  with the  requirements  of any
securities  exchange on which the Securities may be listed, and upon such notice
as  may be  required  by  such  exchange,  all as  more  fully  provided  in the
Indenture. Payments of principal shall

                                      -81-

<PAGE>

be  made  upon  the  surrender  of  this Security at the option of the Holder at
the Corporate Trust Office of the Trustee,  or at such other office or agency of
the  Company  as may be  designated  by it for such  purpose  in the  Borough of
Manhattan,  The City of New York,  in such coin or currency of the United States
of America as at the time of payment  shall be legal  tender for the  payment of
public and private  debts,  or at such other  offices or agencies as the Company
may  designate,  by United States Dollar check drawn on a bank in the Borough of
Manhattan, The City of New York or by transfer to a United States Dollar account
(such a transfer to be made only to a Holder of an aggregate principal amount of
Securities  in excess of U.S.  $2,000,000,  and only if such  Holder  shall have
furnished  wire  instructions  in writing  to the  Trustee no later than 15 days
prior to the relevant  payment date)  maintained by the payee with a bank in the
Borough  of  Manhattan,  The City of New York.  Payment of  interest,  including
payment of any  Liquidated  Damages (as  defined on the reverse  hereof) on this
Security  may be made by  United  States  Dollar  check  drawn  on a bank in the
Borough of  Manhattan,  The City of New York mailed to the address of the Person
entitled thereto as such address shall appear in the Security Register, or, upon
written  application by the Holder to the Security  Registrar setting forth wire
instructions  not later than the relevant  Record Date,  by transfer to a United
States  Dollar  account  (such a  transfer  to be made  only to a  Holder  of an
aggregate principal amount of Securities in excess of U.S.$2,000,000) maintained
by the payee with a bank in the Borough of Manhattan, The City of New York.

     Reference  is hereby made to the further  provisions  of this  Security set
forth on the reverse  hereof,  which further  provisions  shall for all purposes
have the same effect as if set forth at this place.

     Unless the  certificate of  authentication  hereon has been executed by the
Trustee  referred to on the  reverse  hereof or an  Authenticating  Agent by the
manual  signature  of one  of  their  respective  authorized  signatories,  this
Security shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

                                      -82-

<PAGE>



     IN WITNESS  WHEREOF,  the  Company  has  caused  this  Security  to be duly
executed under its corporate seal.

Dated:  May 22, 1996

                                                    BROADBAND TECHNOLOGIES, INC.

[Corporate Seal]

          By:_____________________________
                                                     Name:
                                                     Title:

Attest:


- ------------------------
Name:
Title:


                                      -83-



<PAGE>


                                [FORM OF REVERSE]

     This  Security  is one of a duly  authorized  issue  of  securities  of the
Company  designated as its "5% Convertible  Subordinated Notes due May 15, 2001"
(herein  called the  "Securities"),  limited in  aggregate  principal  amount to
U.S.$115,000,000,  issued and to be issued under an  Indenture,  dated as of May
22, 1996 (herein called the "Indenture"), between the Company and Marine Midland
Bank, as Trustee (herein called the "Trustee", which term includes any successor
trustee under the Indenture), to which Indenture and all indentures supplemental
thereto  reference  is hereby made for a  statement  of the  respective  rights,
limitations  of rights,  duties and  immunities  thereunder of the Company,  the
Trustee, the holders of Senior Debt and the Holders of the Securities and of the
terms upon which the Securities are, and are to be, authenticated and delivered.
The  Securities  are  issuable  in  registered   form,   without   coupons,   in
denominations  of  U.S.$1,000  and integral  multiples of  U.S.$1,000  in excess
thereof. As provided in the Indenture and subject to certain limitations therein
set forth,  Securities are exchangeable for a like aggregate principal amount of
Securities  of  any  authorized   denominations   as  requested  by  the  Holder
surrendering  the same  upon  surrender  of the  Security  or  Securities  to be
exchanged,  at the Corporate Trust Office of the Trustee or at such other office
or agency of the  Company  as may be  designated  by it for such  purpose in the
Borough of Manhattan,  The City of New York or at such other offices or agencies
as the Company may designate (each a "Transfer  Agent").  The Transfer Agent (if
other than the Trustee) will then forward such surrendered  Securities (together
with any payment  surrendered  therewith) to the Trustee.  The Trustee upon such
surrender by the Holder or receipt  from the  Transfer  Agent will issue the new
Securities in the requested denominations.

     No sinking fund is provided for the Securities.  The Securities are subject
to  redemption at the option of the Company at any time on or after the close of
business on May 15,  1999,  in whole or in part,  upon not less than 30 nor more
than  60  days'  notice  to the  Holders  prior  to the  Redemption  Date at the
Redemption  Prices  set forth  below,  together  with  accrued  interest  to the
Redemption Date; provided, that interest installments on Securities whose Stated
Maturity is on or prior to such  Redemption  Date will be payable to the Holders
of such  Securities,  or one or more  Predecessor  Securities,  of record at the
close of business on the relevant  Record Dates  referred to on the face hereof,
all as provided in the Indenture.

     The Redemption  Prices  (expressed as a percentage of principal amount) are
as follows for the 12-month period beginning on May 15 of the following years:

                             Redemption
           Year                 Price

           1999                102.00
           2000                101.00

                                      -84-

<PAGE>

and thereafter at a Redemption Price equal to 100% of the principal amount, in
each case together with accrued interest to the Redemption Date.

     In the  event  of a  redemption  of less  than all of the  Securities,  the
Company  will not be  required  (a) to  register  the  transfer  or  exchange of
Securities  for a period of 15 days  immediately  preceding  the date  notice is
given  identifying  the  serial  numbers  of  the  Securities  called  for  such
redemption  or (b) to register  the  transfer or  exchange of any  Security,  or
portion thereof, called for redemption.

     Notice of redemption will be given by mail to Holders of Securities. Notice
to the Holders will be given not less than 30 nor more than 60 days prior to the
Redemption Date as provided in the Indenture.

     In any case  where  the due  date  for the  payment  of the  principal  of,
premium, if any, or interest,  including any Liquidated Damages, on any Security
or the last  day on which a Holder  of a  Security  has a right to  convert  his
Security shall be, at any Place of Payment or Place of  Conversion,  as the case
may be, a day on which banking institutions at such Place of Payment or Place of
Conversion are authorized or obligated by law or executive order to close,  then
payment of principal,  premium,  if any, or interest,  including any  Liquidated
Damages,  or delivery for  conversion of such Security need not be made on or by
such date at such place but may be made on or by the next succeeding day at such
place  which  is not a day on  which  banking  institutions  are  authorized  or
obligated by law or executive order to close,  with the same force and effect as
if made on the  date for  such  payment  or the date  fixed  for  redemption  or
repurchase, or by such last day for conversion,  and no interest shall accrue on
the amount so payable for the period after such date.

     Subject to and upon  compliance  with the provisions of the Indenture,  the
Holder of this  Security is  entitled,  at his  option,  at any time on or after
August 20, 1996,  and on or before the close of business on May 15, 2001,  or in
case this  Security or a portion  hereof is called for  redemption or the Holder
hereof  has  exercised  his right to require  the  Company  to  repurchase  this
Security or such  portion  hereof,  then in respect of this  Security  until and
including,  but  (unless  the  Company  defaults  in making the payment due upon
redemption or repurchase,  as the case may be) not after,  the close of business
on the Redemption  Date or the  Repurchase  Date, as the case may be, to convert
this Security (or any portion of the principal amount hereof that is an integral
multiple of U.S.$1,000,  provided that the unconverted portion of such principal
amount is U.S.$1,000 or any integral  multiple of U.S.$1,000 in excess  thereof)
into fully paid and  nonassessable  shares of Common  Stock of the Company at an
initial  Conversion  Rate of 24.1080  for each share of Common  Stock (or at the
current  adjusted  Conversion Rate if an adjustment has been made as provided in
the Indenture) by surrender of this  Security,  duly endorsed or assigned to the
Company or in blank and, in case such surrender  shall be made during the period
from the close of business on any Regular

                                      -85-
<PAGE>

Record  Date  next  preceding  any  Interest  Payment  Date  to  the  opening of
business on such Interest  Payment Date (except if this Security has been called
for redemption on a Redemption  Date or is  repurchasable  on a Repurchase  Date
occurring,  in either  case,  during  such  period and is  surrendered  for such
conversion during such period), also accompanied by payment in New York Clearing
House or  other  funds  acceptable  to the  Company  of an  amount  equal to the
interest  payable on such Interest  Payment Date on the principal amount of this
Security  then  being  converted  and also the  conversion  notice  hereon  duly
executed,  to the Company at the  Corporate  Trust Office of the Trustee,  or at
such other office or agency of the Company,  subject to any laws or  regulations
applicable  thereto  and subject to the right of the  Company to  terminate  the
appointment of any  Conversion  Agent (as defined below) as may be designated by
it for such  purpose in the Borough of  Manhattan,  The City of New York,  or at
such other offices or agencies as the Company may designate  (each a "Conversion
Agent"),  provided  further,  that if this  Security or portion  hereof has been
called for redemption on a Redemption Date or is  repurchasable  on a Repurchase
Date occurring,  in either case, during the period from the close of business on
any Regular Record Date next preceding any Interest  Payment Date to the opening
of business on such  succeeding  Interest  Payment Date and is  surrendered  for
conversion  during such  period,  then the Holder of this  Security who converts
this Security or a portion hereof during such period will be entitled to receive
the interest  accruing hereon from the Interest  Payment Date next preceding the
date of such conversion to such succeeding  Interest  Payment Date and shall not
be required to pay such interest upon surrender of this Security for conversion.
Subject  to the  provisions  of the  preceding  sentence  and,  in the case of a
conversion after the close of business on the Regular Record Date next preceding
any Interest  Payment Date and or before the close of business on such  Interest
Payment Date,  to the right of the Holder of this  Security (or any  Predecessor
Security  of record as of such  Regular  Record  Date) to  receive  the  related
installment  of interest to the extent and under the  circumstances  provided in
the  Indenture,  no cash payment or adjustment  is to be made on conversion  for
interest accrued hereon from the Interest Payment Date next preceding the day of
conversion,  or for dividends on the Common Stock issued on  conversion  hereof.
The Company shall thereafter deliver to the Holder the fixed number of shares of
Common Stock (together with any cash  adjustment,  as provided in the Indenture)
into which this  Security is  convertible  and such  delivery  will be deemed to
satisfy the Company's  obligation to pay the principal  amount of this Security.
No fractions of shares or scrip representing  fractions of shares will be issued
on conversion, but instead of any fractional interest (calculated to the nearest
1/100th of a share) the Company  shall pay a cash  adjustment as provided in the
Indenture or, alternatively, the Company shall round up to the next higher whole
share.  The  Conversion  Rate  is  subject  to  adjustment  as  provided  in the
Indenture.  In  addition,  the  Indenture  provides  that  in  case  of  certain
consolidations  or  mergers to which the  Company is a party or the  conveyance,
transfer,  sale or lease of all or substantially  all of the property and assets
of the  Company,  the  Indenture  shall be  amended,  without the consent of any
Holders of  Securities,  so that this  Security,  if then  Outstanding,  will be
convertible thereafter,  during the period this Security shall be convertible as
specified  above,  only into the kind and amount of  securities,  cash and other
property receivable upon such consolidation,  merger, conveyance, transfer,

                                      -86-

<PAGE>

sale  or  lease  by  a  holder of the  number  of shares of Common  Stock of the
Company into which this Security could have been converted  immediately prior to
such consolidation,  merger, conveyance,  transfer, sale or lease (assuming such
holder of Common  Stock is not a  Constituent  Person,  failed to  exercise  any
rights of election and received per share the kind and amount received per share
by  a  plurality  of  Non-electing   Shares  and  further   assuming,   if  such
consolidation,  merger, conveyance,  transfer, sale or lease occurs prior to the
end of the Restricted  Period,  that the Security was convertible at the time of
such  occurrence at the  Conversion  Rate  specified  above as adjusted from the
issue date of such  Security  to such time as  provided  in the  Indenture).  No
adjustment  in the  Conversion  Rate will be made  until such  adjustment  would
require an increase  or decrease of at least one percent of such rate,  provided
that any  adjustment  that would  otherwise be made will be carried  forward and
taken into account in the computation of any subsequent adjustment.

     Subject  to  certain  limitations  in the  Indenture,  at any time when the
Company is not  subject to Section 13 or 15(d) of the United  States  Securities
Exchange Act of 1934,  as amended,  upon the request of a Holder of a Restricted
Security or the holder of shares of Common Stock issued upon conversion thereof,
the Company will promptly furnish or cause to be furnished Rule 144A Information
(as defined  below) to such Holder of  Restricted  Securities  or such holder of
shares of Common Stock issued upon conversion of Restricted Securities,  or to a
prospective  purchaser  of any such  security  designated  by any such Holder or
holder,  as the case may be, to the extent required to permit  compliance by any
such  Holder or  holder  with Rule 144A  under the  Securities  Act of 1933,  as
amended  (the  "Securities  Act"),  in  connection  with the  resale of any such
security.  "Rule 144A  Information"  shall be such  information  as is specified
pursuant to Rule 144A(d)(4) under the Securities Act (or any successor provision
thereto).

     If this  Security  is a  Registrable  Security,  then  the  Holder  of this
Security [IF THIS Security is a Global  Security,  then insert--  (including any
Person that has a beneficial  interest in this  Security)]  and the Common Stock
issuable upon  conversion  thereof is entitled to the benefits of a Registration
Rights  Agreement,   dated  as  of  May  17,  1996  (the  "Registration   Rights
Agreement"),  executed  by the  Company.  Pursuant  to the  Registration  Rights
Agreement,  the Company  has agreed for the benefit of the Holders  from time to
time of Registrable Securities,  at the Company's expense, (a) to file within 90
days  after the first  date of  original  issuance  of the  Securities,  a shelf
registration statement (the "Shelf Registration  Statement") with the Commission
with respect to resales of the Registrable  Securities (b) within 180 days after
the date of original issuance of the Securities to use its best efforts to cause
such Shelf Registration  Statement to be declared effective by the Commission as
promptly as practicable,  and (c) to use its best efforts to maintain such Shelf
Registration  Statement  continuously  effective  under the Securities Act for a
period of three years from the date the Shelf Registration Statement is declared
effective  or, if  earlier,  (i)  until  there  are no  outstanding  Registrable
Securities or (ii) until, in the written  opinion of independent  counsel to the
Company,  all  outstanding  Registrable  Securities held by persons that are not
affiliates of the

                                      -87
<PAGE>

Company  may  be  resold  without   registration   under   the   Securities  Act
pursuant to Rule 144(k)  under the  Securities  Act or any  successor  provision
thereof.

     If (i) on or prior to 90 days following the first date of original issuance
of the Securities,  a Shelf  Registration  Statement has not been filed with the
Commission,  or (ii) on or prior to the 180th day  following  the first  date of
original issuance of the Securities,  such Shelf  Registration  Statement is not
declared  effective  (each,  a  "Registration  Default"),   additional  interest
("Liquidated  Damages")  will accrue on this Security from and including the day
following  such  Registration  Default  to but  excluding  the day on which such
Registration   Default  has  been  cured.   Liquidated   Damages  will  be  paid
semi-annually in arrears,  with the first  semi-annual  payment due on the first
Interest  Payment Date in respect of the Securities  following the date on which
such  Liquidated  Damages  begin to accrue,  and will accrue at a rate per annum
equal to an  additional  one-quarter  of one  percent  (0.25%) of the  principal
amount  of  the  Securities  to  and  including  the  90th  day  following  such
Registration  Default  and at a rate per annum  equal to one-half of one percent
(0.50%) thereof from and after the 91st day following such Registration Default.
In the event that the Shelf Registration  Statement ceases to be effective prior
to the third  annual  anniversary  of the  initial  effective  date of the Shelf
Registration  Statement or such earlier date as is provided in the  Registration
Rights Agreement for a period in excess of 60 days,  whether or not consecutive,
during any 12-month period, then the interest rate borne by the Securities shall
increase by an  additional  one-half  of one percent  (0.50%) per annum from the
61st day of the applicable  12-month  period such Shelf  Registration  Statement
ceases to be effective to but excluding the day on which the Shelf  Registration
Statement again becomes effective.

     Whenever in this  Security  there is a reference,  in any  context,  to the
payment of the principal of, premium,  if any, or interest on, or in respect of,
any Security such mention  shall be deemed to include  mention of the payment of
Liquidated Damages payable as described in the preceding paragraph to the extent
that,  in such  context,  Liquidated  Damages  are,  were or would be payable in
respect  of such  Security  and  express  mention of the  payment of  Liquidated
Damages  (if  applicable)  in any  provisions  of  this  Security  shall  not be
construed as excluding  Liquidated  Damages in those provisions of this Security
where such express mention is not made.

     If this Security is a Registrable  Security and the Holder of this Security
[IF THIS SECURITY IS A GLOBAL SECURITY, THEN INSERT-- (including any Person that
has a  beneficial  interest  in this  Security)]  elects to sell  this  Security
pursuant to the Shelf Registration Statement then, by such election, such Holder
of this  Security  agrees  to be bound by the terms of the  Registration  Rights
Agreement  relating to the Registrable  Securities which are the subject of such
election.

     If a Change in Control occurs, the Holder of this Security, at the Holder's
option,  shall  have  the  right,  in  accordance  with  the  provisions  of the
Indenture, to require the Company to repurchase this Security (or any portion of
the  principal  amount hereof that is an integral  multiple of

                                      -88-

$1,000,   provided  that  the  portion  of the principal amount of this Security
to be Outstanding  after such  repurchase is at least equal to  U.S.$1,000)  for
cash at a Repurchase  Price equal to 100% of the principal  amount  thereof plus
interest  accrued to the  Repurchase  Date.  At the option of the  Company,  the
Repurchase  Price may be paid in cash or, subject to the conditions  provided in
the Indenture,  by delivery of shares of Common Stock having a fair market value
equal to the Repurchase  Price. For purposes of this paragraph,  the fair market
value of shares of Common Stock shall be  determined by the Company and shall be
equal  to 95% of the  average  of the  Closing  Prices  Per  Share  for the five
consecutive  Trading  Days  ending  on  and  including  the  third  Trading  Day
immediately  preceding the Repurchase Date. Whenever in this Security there is a
reference, in any context, to the principal of any Security as of any time, such
reference shall be deemed to include  reference to the Repurchase  Price payable
in respect of such Security to the extent that such Repurchase  Price is, was or
would be so payable at such time, and express mention of the Repurchase Price in
any  provision  of  this  Security  shall  not be  construed  as  excluding  the
Repurchase  Price so  payable in those  provisions  of this  Security  when such
express  mention is not made;  provided,  however,  that for the purposes of the
third succeeding paragraph,  such reference shall be deemed to include reference
to the Repurchase Price only if the Repurchase Price is payable in cash.

     [THE FOLLOWING PARAGRAPH SHALL APPEAR IN EACH SECURITY THAT IS NOT A GLOBAL
SECURITY:

     In the event of  redemption,  repurchase  or conversion of this Security in
part only, a new Security or Securities  for the  unredeemed,  unrepurchased  or
unconverted portion hereof will be issued in the name of the Holder hereof.]

     [THE FOLLOWING PARAGRAPH SHALL APPEAR IN EACH GLOBAL SECURITY:

     In the event of a deposit or  withdrawal  of an interest in this  Security,
including an exchange,  transfer,  redemption,  repurchase or conversion of this
Security in part only, the Trustee,  as custodian of the Depositary,  shall make
an adjustment on its records to reflect such deposit or withdrawal in accordance
with the Applicable Procedures.]

     The  indebtedness  evidenced by this  Security is, to the extent and in the
manner provided in the Indenture, subordinate and subject in right of payment to
the prior  payment in full of all Senior Debt of the Company,  and this Security
is issued subject to such provisions of the Indenture with respect thereto. Each
Holder of this Security, by accepting the same, (a) agrees to and shall be bound
by such provisions, (b) authorizes and directs the Trustee on his behalf to take
such action as may be necessary or appropriate  to effectuate the  subordination
so provided and (c) appoints  the Trustee his  attorney-in-fact  for any and all
such purposes.

                                      -89-
<PAGE>

     If an Event of Default shall occur and be continuing,  the principal of all
the Securities,  together with accrued interest to the date of declaration,  may
be declared  due and  payable in the manner and with the effect  provided in the
Indenture.  Upon  payment (i) of the amount of  principal  so  declared  due and
payable, together with accrued interest to the date of declaration,  and (ii) of
interest on any overdue  principal  and overdue  interest,  all of the Company's
obligations  in respect of the payment of the  principal  of and interest on the
Securities shall terminate.

     The Indenture  permits,  with certain  exceptions as therein provided,  the
amendment  thereof and the  modification  of the rights and  obligations  of the
Company and the rights of the Holders of the  Securities  under the Indenture at
any time by the Company and the Trustee  with either (a) the written  consent of
the  Holders of a majority in  principal  amount of the  Securities  at the time
Outstanding,  or (b) by the adoption of a resolution, at a meeting of Holders of
the  Outstanding  Securities  at which a quorum is  present,  by the  Holders of
66-2/3%  in  principal  amount of the  Outstanding  Securities  represented  and
entitled  to  vote at such  meeting.  The  Indenture  also  contains  provisions
permitting  the Holders of  specified  percentages  in  principal  amount of the
Securities  at the  time  Outstanding,  on  behalf  of the  Holders  of all  the
Securities,  to waive  compliance by the Company with certain  provisions of the
Indenture and certain past defaults under the Indenture and their  consequences.
Any such consent or waiver by the Holder of this  Security  shall be  conclusive
and binding upon such Holder and upon all future Holders of this Security and of
any  Security  issued in  exchange  herefor  or in lieu  hereof,  whether or not
notation  of such  consent  or waiver is made upon this  Security  or such other
Security.

     As provided in and subject to the provisions of the  Indenture,  the Holder
of this  Security  shall not have the right to  institute  any  proceeding  with
respect to the Indenture or for the  appointment of a receiver or trustee or for
any other remedy thereunder,  unless such Holder shall have previously given the
Trustee written notice of a continuing Event of Default, the Holders of not less
than 25% in  principal  amount of the  Outstanding  Securities  shall  have made
written request to the Trustee to institute proceedings in respect of such Event
of Default as Trustee  and  offered the  Trustee  reasonable  indemnity  and the
Trustee  shall not have  received  from the Holders of a majority  in  principal
amount of the Securities Outstanding a direction inconsistent with such request,
and shall  have  failed to  institute  any such  proceeding,  for 60 days  after
receipt of such notice, request and offer of indemnity.  The foregoing shall not
apply to any suit  instituted by the Holder of this Security for the enforcement
of any  payment  of  principal  hereof,  premium,  if any,  or  interest  hereon
(including  any  Liquidated  Damages)  on or  after  the  respective  due  dates
expressed herein or for the enforcement of the right to convert this Security as
provided in the Indenture.

     No reference  herein to the  Indenture and no provision of this Security or
of the Indenture  shall alter or impair the obligation of the Company,  which is
absolute  and  unconditional,  to pay the  principal  of,  premium,  if any, and
interest on (including Liquidated Damages) this

                                      -90-
<PAGE>

Security  at  the  times,  places  and rate, and in the coin or currency, herein
prescribed or to convert this Security as provided in the Indenture.

     As provided in the Indenture and subject to certain limitations therein set
forth,  the transfer of Securities is registrable on the Security  Register upon
surrender  of a Security for  registration  of transfer at the  Corporate  Trust
Office of the Trustee or at such other office or agency of the Company as may be
designated by it for such purpose in the Borough of  Manhattan,  The City of New
York,  or at such other offices or agencies as the Company may  designate,  duly
endorsed  by,  or  accompanied  by a  written  instrument  of  transfer  in form
satisfactory  to the Company and the Security  Registrar  duly  executed by, the
Holder thereof or his attorney duly authorized in writing,  and thereupon one or
more new  Securities,  of authorized  denominations  and for the same  aggregate
principal amount, will be issued to the designated  transferee or transferees by
the  Registrar.  No service  charge shall be made for any such  registration  of
transfer or exchange, but the Company may require payment of a sum sufficient to
recover any tax or other governmental charge payable in connection therewith.

     Prior to due presentation of a Security for  registration of transfer,  the
Company,  the  Trustee and any agent of the Company or the Trustee may treat the
Person in whose name such Security is  registered,  as the owner thereof for all
purposes,  whether or not such Security be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

     THE  INDENTURE  AND THIS  SECURITY  SHALL BE GOVERNED BY AND  CONSTRUED  IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, UNITED STATES OF AMERICA.

     All terms used in this Security  which are defined in the  Indenture  shall
have the meanings assigned to them in the Indenture.

                                      -91-


<PAGE>


                    ELECTION OF HOLDER TO REQUIRE REPURCHASE

     1. Pursuant to Section 14.1 of the Indenture, the undersigned hereby elects
to have this Security repurchased by the Company.

     2. The  undersigned  hereby directs the Trustee or the Company to pay it or
__________________ an amount in cash or, at the Company's election, Common Stock
valued as set forth in the Indenture,  equal to 100% of the principal  amount to
be  repurchased  (as set forth below),  plus interest  accrued to the Repurchase
Date, as provided in the Indenture.

                             Dated: _______________________

                                    -----------------------
                                          Signature


                                    ----------------------- 
                                     Signature Guaranteed

Principal amount to be repurchased
(an integral multiple of U.S.$1,000): ______________________

Remaining principal amount following such repurchase
(not less than U.S.$1,000):  ______________________

NOTICE:  The  signature  to  the  foregoing Election must correspond to the Name
as  written  upon  the  face of  this  Security  in  every  particular,  without
alteration or any change whatsoever.


SECTION 2.3.     Form of Certificate of Authentication.

     The Trustee's  certificates of authentication shall be in substantially the
following form:

                                      -92-

<PAGE>

     This  is  one  of  the  Securities  referred  to  in  the  within-mentioned
Indenture.

Dated:  _______________


                              MARINE MIDLAND BANK,
                               as Trustee



                              By:___________________________
                                    Authorized Signatory



SECTION 2.4.       Form of Conversion Notice.


                                CONVERSION NOTICE

     The undersigned  Holder of this Security hereby  irrevocably  exercises the
option to convert this Security,  or any portion of the principal  amount hereof
(which is an integral  multiple of  U.S.$1,000,  provided  that the  unconverted
portion of such  principal  amount is  U.S.$1,000  or any  integral  multiple of
U.S.$1,000 in excess thereof) below  designated,  into shares of Common Stock in
accordance  with the terms of the Indenture  referred to in this  Security,  and
directs that such shares,  together  with a check in payment for any  fractional
share and any Securities  representing any unconverted  principal amount hereof,
be  delivered  to and be  registered  in the  name of the  undersigned  unless a
different name has been indicated below. If shares of Common Stock or Securities
are to be  registered  in the name of a Person other than the  undersigned,  the
undersigned will pay all transfer taxes payable with respect thereto. Any amount
required to be paid by the undersigned on account of interest  accompanies  this
Security.


Dated:  _____________________
                                         --------------------
                                              Signature

                                      -93-

<PAGE>

If shares or Securities are to be       If only a portion of the Securities is 
registered in the name of a Person      to be converted, please indicate:
other than the Holder, please print
such Person's name and address:

                                        1.  Principal amount to be converted:

_________________________                  U.S.$___________
         Name
                                        2.  Principal amount and denomination of
                                            Securities representing unconverted
                                            principal amount to be issued:

- -------------------------
        Address                         Amount:  U.S.$________

                                        Denominations:
                                        U.S.$______
_________________________               (any integral multiple of U.S.$1,000, 
Social Security or other Taxpayer       provided that the unconverted portion of
Identification Number, if any           such principal amount is Social Security
                                        or other Taxpayer Identification Number,
                                        if any U.S.$1,000 or any integral 
                                        multiple of U.S.$1,000 in excess
                                        thereof)

___________________________                               [Signature Guaranteed]


                                      -94-
<PAGE>


                                  ARTICLE THREE

                                 THE SECURITIES


SECTION 3.1.     Title and Terms.

     The aggregate principal amount of Securities which may be authenticated and
delivered  under  this  Indenture  is limited  to  U.S.$115,000,000,  except for
Securities  authenticated  and  delivered in exchange  for, or in lieu of, other
Securities pursuant to Section 3.4, 3.5, 3.6, 8.5, 11.8, 12.2 or 14.3(e).

     The  Securities  shall  be  known  and  designated  as the "5%  Convertible
Subordinated Notes due May 15, 2001" of the Company. Their Stated Maturity shall
be May 15, 2001 and they shall bear interest on their principal  amount from May
22,  1996,  payable  semi-annually  in arrears on May 15 and November 15 in each
year,  commencing  November  15,  1996,  at the rate of 5% per  annum  until the
principal  thereof  is due  and at the  rate  of 5%  per  annum  on any  overdue
principal  and,  to the  extent  permitted  by  law,  on any  overdue  interest;
provided, however, that payments shall only be made on Business Days as provided
in Section 1.12.

     The principal of, premium,  if any, and interest on the Securities shall be
payable as provided in the forms of Securities set forth in Section 2.2, and the
Repurchase Price, whether payable in cash or in shares of Common Stock, shall be
payable at such places as are identified in the Company Notice given pursuant to
Section 14.3 (any city in which any Paying Agent is located  being herein called
a "Place of Payment").

     The  Securities  are  entitled  to the  benefits of a  Registration  Rights
Agreement as provided by Sections 2.2 and 10.11.  The Securities are entitled to
the payment of additional interest as provided by Section 10.11.

     The Securities shall be redeemable at the option of the Company at any time
on or after May 15, 1999, in whole or in part,  and at the  Company's  option in
the event of certain  developments,  as  provided  in Article  Eleven and in the
forms of Securities set forth in Section 2.2.

     The Securities shall be convertible as provided in Article Twelve (any city
in which  any  Conversion  Agent is  located  being  herein  called a "Place  of
Conversion").

     The Securities  shall be subordinated in right of payment to Senior Debt of
the Company as provided in Article Thirteen.

                                      -95-
<PAGE>

     The Securities  shall be subject to repurchase by the Company at the option
of the Holders as provided in Article Fourteen.

SECTION 3.2.       Denominations.

     The Securities shall be issuable only in registered form,  without coupons,
in  denominations  of U.S.$1,000 and integral  multiples of U.S.$1,000 in excess
thereof.

SECTION 3.3.       Execution, Authentication, Delivery and Dating.

     The  Securities  shall be executed on behalf of the Company by its Chairman
of the Board, its Vice Chairman of the Board, its Chief Executive  Officer,  its
President or one of its Vice Presidents, under a facsimile of its corporate seal
reproduced   thereon   attested  by  its  Secretary  or  one  of  its  Assistant
Secretaries. Any such signature may be manual or facsimile.

     Securities  bearing the manual or facsimile  signature of  individuals  who
were at any time the proper  officers  of the  Company  shall bind the  Company,
notwithstanding  that such  individuals  or any of them have ceased to hold such
offices prior to the  authentication  and delivery of such Securities or did not
hold such offices at the date of such Securities.

     At any time and from time to time after the  execution and delivery of this
Indenture,  the Company may  deliver  Securities  executed by the Company to the
Trustee or to its order for  authentication,  together  with a Company Order for
the  authentication  and  delivery  of such  Securities,  and the  Trustee or an
Authenticating  Agent in accordance  with such Company Order shall  authenticate
and make available for delivery such  Securities as in this  Indenture  provided
and not otherwise.  In connection with any Company Order for authentication with
respect  to the  initial  issuance  of the  Securities,  an  Opinion  of Counsel
pursuant to Section 1.2 shall not be required.

     No Security  shall be entitled to any benefit  under this  Indenture  or be
valid or  obligatory  for any purpose  unless there  appears on such  Security a
certificate  of  authentication  substantially  in the form  provided for herein
executed by the Trustee or an  Authenticating  Agent by manual  signature  of an
authorized signatory, and such certificate upon any Security shall be conclusive
evidence, and the only evidence,  that such Security has been duly authenticated
and delivered hereunder.

                                      -96-

<PAGE>

SECTION 3.4.      Global Securities; Non-Global Securities.

                  (A)               Global Securities

     (a) Each  Global  Security  authenticated  under  this  Indenture  shall be
registered  in the name of the  Depositary  designated  by the  Company for such
Global  Security or a nominee  thereof and  delivered  to such  Depositary  or a
nominee  thereof or  custodian  therefor,  and each such Global  Security  shall
constitute a single Security for all purposes of this Indenture.

     (b)  Notwithstanding  any  other  provision  in this  Indenture,  no Global
Security may be exchanged in whole or in part for Securities registered,  and no
transfer of a Global Security in whole or in part may be registered, in the name
of any Person other than the  Depositary  for such Global  Security or a nominee
thereof  unless (i) such  Depositary  (A) has  notified  the Company  that it is
unwilling or unable to continue as  Depositary  for such Global  Security or (B)
has ceased to be a clearing agency  registered as such under the Exchange Act or
announces an intention permanently to cease business or does in fact do so, (ii)
there shall have  occurred and be continuing an Event of Default with respect to
such Global  Security,  or (iii) pursuant to the following  sentence.  After the
expiration of the Restricted  Period (but not earlier,  unless any of the events
specified in clauses (i) or (ii) of this  paragraph  shall have then  occurred),
all or any portion of a  Regulation S Global  Security  may be  exchanged  for a
Security  that  has a like  aggregate  principal  amount  and  is  not a  Global
Security,  upon  timely  request  made  by  the  Depositary  or  its  authorized
representative to the Trustee.

     (c) If any Global  Security  is to be  exchanged  for other  Securities  or
canceled in whole,  it shall be surrendered by or on behalf of the Depositary or
its nominee to the Trustee, as Security Registrar,  for exchange or cancellation
as provided in this Article Three. If any Global Security is to be exchanged for
other Securities or cancelled in part, or if another Security is to be exchanged
in whole or in part for a beneficial  interest in any Global  Security,  in each
case, as provided in Section 3.5, then either (i) such Global  Security shall be
so surrendered for exchange or cancellation as provided in this Article Three or
(ii) the  principal  amount  thereof  shall be reduced or increased by an amount
equal to the portion  thereof to be so exchanged or  cancelled,  or equal to the
principal  amount of such other  Security to be so  exchanged  for a  beneficial
interest therein, as the case may be, by means of an appropriate adjustment made
on the records of the Trustee, as Security Registrar,  whereupon the Trustee, in
accordance with the Applicable Procedures,  shall instruct the Depositary or its
authorized  representative  to make a  corresponding  adjustment to its records.
Upon any such surrender or adjustment of a Global  Security,  the Trustee shall,
subject to Section  3.6(c) and as  otherwise  provided  in this  Article  Three,
authenticate  and deliver any  Securities  issuable in exchange  for such Global
Security  (or any portion  thereof) to or upon the order of, and  registered  in
such  names  as  may  be  directed  by,  the   Depositary   or  its   authorized
representative.

                                      -97-

<PAGE>

Upon  the  request  of  the  Trustee in connection with the occurrence of any of
the events specified in the preceding paragraph, the Company shall promptly make
available to the Trustee a reasonable  supply of Securities  that are not in the
form of Global Securities. The Trustee shall be entitled to rely upon any order,
direction or request of the Depositary or its authorized representative which is
given or made pursuant to this Article Three if such order, direction or request
is given or made in accordance with the Applicable Procedures.

     (d)  Every  Security  authenticated  and  delivered  upon  registration  of
transfer of, or in exchange for or in lieu of, a Global  Security or any portion
thereof,  whether  pursuant  to  this  Article  Three  or  otherwise,  shall  be
authenticated  and  delivered  in the form of, and shall be, a Global  Security,
unless  such  Security  is  registered  in the name of a Person  other  than the
Depositary  for such Global  Security or a nominee  thereof,  in which case such
Security shall be  authenticated  and delivered in definitive,  fully registered
form, without interest coupons.

     (e)  The  Depositary  or its  nominee,  as  registered  owner  of a  Global
Security, shall be the Holder of such Global Security for all purposes under the
Indenture and the  Securities,  and owners of  beneficial  interests in a Global
Security  shall  hold such  interests  pursuant  to the  Applicable  Procedures.
Accordingly,  any such owner's beneficial  interest in a Global Security will be
shown only on, and the transfer of such interest shall be effected only through,
records  maintained  by the  Depositary  or its nominee or its Agent Members and
such owners of beneficial  interests in a Global Security will not be considered
the owners or holders thereof.

   (B)  Non-Global Securities

     Regulation  D  Securities  shall  be  initially  issued  as  Securities  in
definitive,  fully registered form, without interest coupons, shall initially be
registered in such names and be in such authorized  denominations as the Initial
Purchasers  shall designate and shall bear the legends required  hereunder.  The
Company will make available to the Trustee a reasonable  supply of Securities in
definitive form.

     Pending the preparation of definitive Securities,  the Company may execute,
and upon Company Order the Trustee  shall  authenticate  and make  available for
delivery,  temporary  Securities which are printed,  lithographed,  typewritten,
mimeographed   or   otherwise   produced,   in  any   authorized   denomination,
substantially  of the tenor of the  definitive  Securities in lieu of which they
are issued and with such appropriate  insertions,  omissions,  substitutions and
other  variations as the officers  executing such  Securities may determine,  as
evidenced by their execution of such Securities.

     If  temporary  Securities  are issued,  the Company  will cause  definitive
Securities to be prepared without  unreasonable  delay. After the preparation of
definitive  Securities,  the  temporary  

                                      -98-
<PAGE>

Securities  shall  be  exchangeable   for  definitive  Securities upon surrender
of the temporary  Securities  at any office or agency of the Company  designated
pursuant to Section  10.2,  without  charge to the Holder.  Upon  surrender  for
cancellation  of any one or more temporary  Securities the Company shall execute
and the Trustee shall  authenticate  and make available for delivery in exchange
therefor  a  like  principal  amount  of  definitive  Securities  of  authorized
denominations. Until so exchanged the temporary Securities shall in all respects
be entitled to the same benefits under this Indenture as definitive Securities.

SECTION 3.5. Registration, Registration of Transfer and Exchange; Restrictions
             on Transfer.

     (a) The Company shall cause to be kept at the Corporate Trust Office of the
Trustee a register  (the  register  maintained  in such  office and in any other
office or agency of the Company designated pursuant to Section 10.2 being herein
sometimes collectively referred to as the "Security Register") in which, subject
to such  reasonable  regulations as it may prescribe,  the Company shall provide
for the  registration of Securities and of transfers of Securities.  The Trustee
is  hereby  appointed  "Security  Registrar"  for  the  purpose  of  registering
Securities and transfers and exchanges of Securities as herein provided.

     Subject to the other provisions of this Indenture regarding restrictions on
transfer,  upon  surrender  for  registration  of transfer of any Security at an
office or agency of the Company  designated  pursuant  to Section  10.2 for such
purpose,  the Company  shall  execute,  and the Trustee shall  authenticate  and
deliver,  in the name of the designated  transferee or transferees,  one or more
new Securities of any authorized denominations and of a like aggregate principal
amount  and  bearing  such  restrictive  legends  as may  be  required  by  this
Indenture.

     At the option of the Holder,  and subject to the other  provisions  of this
Section 3.5,  Securities may be exchanged for other Securities of any authorized
denomination  and of a like aggregate  principal  amount,  upon surrender of the
Securities to be exchanged at any such office or agency. Whenever any Securities
are so  surrendered  for exchange,  and subject to the other  provisions of this
Section 3.5, the Company shall execute,  and the Trustee shall  authenticate and
deliver,  the  Securities  which the Holder  making the  exchange is entitled to
receive. Every Security presented or surrendered for registration of transfer or
for exchange shall (if so required by the Company or the Security  Registrar) be
duly endorsed,  or be  accompanied  by a written  instrument of transfer in form
satisfactory  to the Company and the Security  Registrar duly  executed,  by the
Holder thereof or his attorney duly authorized in writing.

     All  Securities  issued  upon any  registration  of transfer or exchange of
Securities  shall be the valid  obligations of the Company,  evidencing the same
debt, and subject to the other  provisions of this Section 3.5,  entitled to the
same benefits  under this  Indenture,  as the Securities  surrendered  upon such
registration of transfer or exchange.

                                      -99-
<PAGE>

     No  service  charge  shall  be made for any  registration  of  transfer  or
exchange of  Securities  except as provided in Section  3.6, but the Company may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charge that may be imposed in connection  with any  registration  of transfer or
exchange of Securities, other than exchanges pursuant to Section 3.4, 8.5, 11.8,
12.2 or 14.3 (other than, in the case of the exchange of  Securities,  where the
shares of Common  Stock are to be issued or  delivered in a name other than that
of the Holder of the  Security)  not  involving  any transfer and other than any
stamp and other duties, if any, which may be imposed in connection with any such
transfer or exchange by the United States or the United Kingdom or any political
subdivision thereof or therein, which shall be paid by the Company.

     In the event of a redemption of the  Securities  in part,  the Company will
not be required  (a) to register the  transfer of or exchange  Securities  for a
period of 15 days immediately preceding the date notice is given identifying the
serial numbers of the Securities  called for such  redemption or (b) to register
the  transfer  of or  exchange  any  Security,  or portion  thereof,  called for
redemption.

     (b) Certain Transfers and Exchanges. Notwithstanding any other provision of
this  Indenture or the  Securities,  transfers and  exchanges of Securities  and
beneficial interests in a Global Security of the kinds specified in this Section
3.5(b) shall be made only in accordance with this Section 3.5(b).

                      (i)  Restricted  Global  Security to  Regulation  S Global
                  Security.  If  the  owner  of a  beneficial  interest  in  the
                  Restricted Global Security wishes at any time to transfer such
                  interest  to a Person who  wishes to  acquire  the same in the
                  form of a  beneficial  interest  in the  Regulation  S  Global
                  Security,  such  transfer may be effected  only in  accordance
                  with the provisions of this Clause (b)(i) and Clause  (b)(vii)
                  below and subject to the Applicable  Procedures.  Upon receipt
                  by the Trustee, as Security  Registrar,  of (A) an order given
                  by the Depositary or its authorized  representative  directing
                  that a beneficial interest in the Regulation S Global Security
                  in a  specified  principal  amount be  credited to a specified
                  Agent Member's  account and that a beneficial  interest in the
                  Restricted  Global  Security in an equal  principal  amount be
                  debited from another  specified Agent Member's account and (B)
                  a Regulation S  Certificate,  satisfactory  to the Trustee and
                  duly executed by the owner of such beneficial  interest in the
                  Restricted  Global Security or his attorney duly authorized in
                  writing,  then the Trustee,  as Security Registrar but subject
                  to Clause (b)(vii) below, shall reduce the principal amount of
                  the  Restricted  Global  Security and  increase the  principal
                  amount of the  Regulation S Global  Security by such specified
                  principal amount as provided in Section 3.4(A)(c).


                                     -100-

                                    (ii) Regulation S Global Security to
                  Restricted Global Security. If the owner of a beneficial
                  interest in the Regulation S Global Security wishes at any
                  time to transfer such interest to a Person who wishes to
                  acquire the same in the form of a beneficial interest in the
                  Restricted Global Security, such transfer may be effected only
                  in accordance with this Clause (b)(ii) and subject to the
                  Applicable Procedures. Upon receipt by the Trustee, as
                  Security Registrar, of (A) an order given by the Depositary or
                  its authorized representative directing that a beneficial
                  interest in the Restricted Global Security in a specified
                  principal amount be credited to a specified Agent Member's
                  account and that a beneficial interest in the Regulation S
                  Global Security in an equal principal amount be debited from
                  another specified Agent Member's account and (B) if such
                  transfer is to occur during the Restricted Period, a
                  Restricted Securities Certificate, satisfactory to the Trustee
                  and duly executed by the owner of such beneficial interest in
                  the Regulation S Global Security or his attorney duly
                  authorized in writing, then the Trustee, as Security
                  Registrar, shall reduce the principal amount of the Regulation
                  S Global Security and increase the principal amount of the
                  Restricted Global Security by such specified principal amount
                  as provided in Section 3.4(A)(c).

                                    (iii) Restricted Non-Global Security to
                  Restricted Global Security or Regulation S Global Security. If
                  the Holder of a Restricted Security (other than a Global
                  Security) wishes at any time to transfer all or any portion of
                  such Restricted Security to a Person who wishes to take
                  delivery thereof in the form of a beneficial interest in the
                  Restricted Global Security or the Regulation S Global
                  Security, such transfer may be effected only in accordance
                  with the provisions of this Clause (b)(iii) and Clause
                  (b)(vii) below and subject to the Applicable Procedures. Upon
                  receipt by the Trustee, as Security Registrar, of (A) such
                  Restricted Security as provided in Section 3.5(a) and
                  instructions satisfactory to the Trustee directing that a
                  beneficial interest in the Restricted Global Security or
                  Regulation S Global Security in a specified principal amount
                  not greater than the principal amount of such Security be
                  credited to a specified Agent Member's account and (B) a
                  Restricted Securities Certificate, if the specified account is
                  to be credited with a beneficial interest in the Restricted
                  Global Security, or a Regulation S Certificate, if the
                  specified account is to be credited with a beneficial interest
                  in the Regulation S Global Security, in either case
                  satisfactory to the Trustee and duly executed by such Holder
                  or his attorney duly authorized in writing, then the Trustee,
                  as Security Registrar but subject to Clause (b)(vii) below,
                  shall cancel such Restricted Security (and issue a new
                  Restricted Security in respect of any untransferred portion
                  thereof) as provided in Section 3.5(a) and increase the
                  principal amount of the Restricted Global Security or the
                  Regulation S Global Security, as the case may be, by the
                  specified principal amount as provided in Section 3.4(A)(c).

                                    (iv) Regulation S Non-Global Security to
                  Restricted Global Security or Regulation S Global Security. If
                  the Holder of a Regulation S Security (other than a Global
                  Security)

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<PAGE>

                  wishes at any time to transfer all or any portion of such
                  Regulation S Security to a Person who wishes to acquire the
                  same in the form of a beneficial interest in the Restricted
                  Global Security or the Regulation S Global Security, such
                  transfer may be effected only in accordance with this Clause
                  (b)(iv) and Clause (b)(vii) below and subject to the
                  Applicable Procedures. Upon receipt by the Trustee, as
                  Security Registrar, of (A) such Regulation S Security as
                  provided in Section 3.5(a) and instructions satisfactory to
                  the Trustee directing that a beneficial interest in the
                  Restricted Global Security or Regulation S Global Security in
                  a specified principal amount not greater than the principal
                  amount of such Security be credited to a specified Agent
                  Member's account and (B) if the transfer is to occur during
                  the Restricted Period and the specified account is to be
                  credited with a beneficial interest in the Restricted Global
                  Security, a Restricted Securities Certificate satisfactory to
                  the Trustee and duly executed by such Holder or his attorney
                  duly authorized in writing, then the Trustee, as Security
                  Registrar but subject to Clause (b)(vii) below, shall cancel
                  such Regulation S Security (and issue a new Regulation S
                  Security in respect of any untransferred portion thereof) as
                  provided in Section 3.5(a) and increase the principal amount
                  of the Restricted Global Security or the Regulation S Global
                  Security, as the case may be, by the specified principal
                  amount as provided in Section 3.4(B).

                                    (v) Non-Global Security to Non-Global
                  Security. A Security that is not a Global Security may be
                  transferred, in whole or in part, to a Person who takes
                  delivery in the form of another Security that is not a Global
                  Security as provided in Section 3.5(a), provided that, if the
                  Security to be transferred in whole or in part is a (y)
                  Restricted Security, or is a Regulation S Security and the
                  transfer is to occur during the Restricted Period, then the
                  Trustee shall have received (A) a Restricted Securities
                  Certificate, satisfactory to the Trustee and duly executed by
                  the transferor Holder or his attorney duly authorized in
                  writing, in which case the transferee Holder shall take
                  delivery in the form of a Restricted Security, or (B) a
                  Regulation S Certificate, satisfactory to the Trustee and duly
                  executed by the transferor Holder or his attorney duly
                  authorized in writing, in which case the transferee Holder
                  shall take delivery in the form of a Regulation S Security, or
                  (z) a Restricted Security and the transfer is to occur after
                  the expiration of the Restricted Period, then the Trustee
                  shall have received a Regulation S Certificate, satisfactory
                  to the Trustee and duly executed by the transferor Holder or
                  his attorney duly authorized in writing, in which case the
                  transferee Holder shall take delivery in the form of a
                  Regulation S Security (subject in every case to Section
                  3.5(c)).

                                    (vi) Exchanges between Global Security and
                  Non-Global Security. A beneficial interest in a Global
                  Security may be exchanged for a Security that is not a Global
                  Security as provided in Section 3.4, provided that, if such
                  interest is a beneficial interest in the Restricted Global
                  Security, or if such interest is a beneficial interest in the
                  Regulation S Global Security and such exchange is to occur
                  during the Restricted Period, then such interest

                                      102
<PAGE>

                  shall be exchanged for a Restricted Security (subject in each
                  case to Section 3.5(c)). A Security that is not a Global
                  Security may be exchanged for a beneficial interest in a
                  Global Security only if (A) such exchange occurs in connection
                  with a transfer effected in accordance with Clause (b)(iii) or
                  (iv) above or (B) such Security is a Regulation S Security and
                  such exchange occurs after the Restricted Period.

                                    (vii) Regulation S Global Security to be
                  Held Through EUROCLEAR or CEDEL during Restricted Period. The
                  Company shall use its best efforts to cause the Depositary to
                  ensure that, until the expiration of the Restricted Period,
                  beneficial interests in the Regulation S Global Security may
                  be held only in or through accounts maintained at the
                  Depositary by EUROCLEAR or CEDEL (or by Agent Members acting
                  for the account thereof), and no person shall be entitled to
                  effect any transfer or exchange that would result in any such
                  interest being held otherwise than in or through such an
                  account; provided that this Clause (b)(vii) shall not prohibit
                  any transfer or exchange of such an interest in accordance
                  with Clause (b)(ii) or (vi) above.



     (c) Securities Act Legends. Rule 144A Securities, Regulation D Securities
and their respective Successor Securities shall bear the applicable Restricted
Securities Legend, and the Regulation S Securities and their Successor
Securities shall bear a Regulation S Legend, subject to the following:

                                    (i) subject to the following Clauses of this
                  Section 3.5(c), a Security or any portion thereof which is
                  exchanged, upon transfer or otherwise, for a Global Security
                  or any portion thereof shall bear the Securities Act Legend
                  borne by such Global Security while represented thereby;

                                    (ii) subject to the following Clauses of
                  this Section 3.5(c), a new Security which is not a Global
                  Security and is issued in exchange for another Security
                  (including a Global Security) or any portion thereof, upon
                  transfer or otherwise, shall bear the Securities Act Legend
                  borne by such other Security, provided that, if such new
                  Security is required pursuant to Section 3.5(b)(v) or (vi) to
                  be issued in the form of a Restricted Security, it shall bear
                  a Restricted Securities Legend and, if such new Security is so
                  required to be issued in the form of a Regulation S Security,
                  it shall bear a Regulation S Legend;

                                    (iii) Any Securities which are sold or
                  otherwise disposed of pursuant to an effective registration
                  statement under the Securities Act (including the Shelf
                  Registration Statement), together with their Successor
                  Securities shall not bear a Securities Act Legend; the Company
                  shall inform the Trustee in writing of the effective date of
                  any such registration statement registering the Securities
                  under the Securities Act and shall notify the Trustee at any
                  time when prospectuses may not be delivered with respect to
                  Securities to be sold pursuant to

                                      103

<PAGE>

                  such registration statement. The Trustee shall not be liable
                  for any action taken or omitted to be taken by it in good
                  faith in accordance with the aforementioned registration
                  statement;

                                    (iv) at any time after the Securities may be
                  freely transferred without registration under the Securities
                  Act or without being subject to transfer restrictions pursuant
                  to the Securities Act, a new Security which does not bear a
                  Securities Act Legend may be issued in exchange for or in lieu
                  of a Security (other than a Global Security) or any portion
                  thereof which bears such a legend if the Trustee has received
                  an Unrestricted Securities Certificate, satisfactory to the
                  Trustee and duly executed by the Holder of such legended
                  Security or his attorney duly authorized in writing, and after
                  such date and receipt of such certificate, the Trustee shall
                  authenticate and deliver such a new Security in exchange for
                  or in lieu of such other Security as provided in this Article
                  Three;

                                    (v) a new Security which does not bear a
                  Securities Act Legend may be issued in exchange for or in lieu
                  of a Security (other than a Global Security) or any portion
                  thereof which bears such a legend if, in the Company's
                  judgment, placing such a legend upon such new Security is not
                  necessary to ensure compliance with the registration
                  requirements of the Securities Act, and the Trustee, at the
                  direction of the Company, shall authenticate and deliver such
                  a new Security as provided in this Article Three; and

                                    (vi) notwithstanding the foregoing
                  provisions of this Section 3.5(c), a Successor Security of a
                  Security that does not bear a particular form of Securities
                  Act Legend shall not bear such form of legend unless the
                  Company has reasonable cause to believe that such Successor
                  Security is a "restricted security" within the meaning of Rule
                  144, in which case the Trustee, at the direction of the
                  Company, shall authenticate and deliver a new Security bearing
                  a Restricted Securities Legend in exchange for such Successor
                  Security as provided in this Article Three.

     (d) Neither the Trustee, the Paying Agent nor any of their agents
shall (1) have any duty to monitor compliance with or with respect to
any federal or state or other securities or tax laws or (2) have any
duty to obtain documentation on any transfers or exchanges other than as
specifically required hereunder.

SECTION 3.6.Mutilated, Destroyed, Lost or Stolen Securities.

     If any mutilated Security is surrendered to the Trustee or to a
Transfer Agent outside the United States, the Company shall execute, the
Trustee or an Authenticating Agent shall authenticate and the Trustee or
Transfer Agent shall deliver in exchange therefor a new Security of like
tenor and principal amount and bearing a number not contemporaneously
outstanding.

                                      104
<PAGE>

     If there be delivered to the Company and either to the Trustee or
to a Transfer Agent outside the United States:

                          (1) evidence to their satisfaction of the
                      destruction, loss or theft of any Security, and

                          (2) such security or indemnity as may be
                      satisfactory to the Company and the Trustee and
                      such Transfer Agent to save each of them and any
                      agent of either of them harmless,

then, in the absence of actual notice to the Company, the Trustee or the
Transfer Agent that such Security has been acquired by a bona fide purchaser,
the Company shall execute, the Trustee or an Authenticating Agent shall
authenticate and the Trustee or Transfer Agent shall deliver, in lieu of any
such destroyed, lost or stolen Security, a new Security of like tenor and
principal amount and bearing a number not contemporaneously outstanding.

     In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its
discretion, but subject to any conversion rights, may, instead of
issuing a new Security, pay such Security, upon satisfaction of the
conditions set forth in the preceding paragraph.

     Upon the issuance of any new Security under this Section 3.6, the
Company may require the payment of a sum sufficient to cover any tax or
other governmental charge that may be imposed in relation thereto (other
than any stamp and other duties, if any, which may be imposed in
connection therewith by the United States or the United Kingdom or any
political subdivision thereof or therein, which shall be paid by the
Company) and any other expenses (including the fees and expenses of the
Trustee, the Paying Agent and the Transfer Agent) connected therewith.

     Every new Security issued pursuant to this Section 3.6 in lieu of
any mutilated, destroyed, lost or stolen Security shall constitute an
original additional contractual obligation of the Company, whether or
not the mutilated, destroyed, lost or stolen Security shall be at any
time enforceable by anyone, and such new Security, shall be entitled to
all the benefits of this Indenture equally and proportionately with any
and all other Securities duly issued hereunder.

      The provisions of this Section 3.6 are exclusive and shall
preclude (to the extent lawful) all other rights and remedies of any
Holder with respect to the replacement or payment of mutilated,
destroyed, lost or stolen Securities.

SECTION 3.7.Payment of Interest; Interest Rights Preserved.

                                      105

<PAGE>

      Interest on any Security which is payable, and is punctually paid
or duly provided for, on any Interest Payment Date shall be paid to the
Person in whose name that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record
Date for such interest.

      Any interest on any Security which is payable, but is not
punctually paid or duly provided for, on any Interest Payment Date
(herein called "Defaulted Interest") shall forthwith cease to be payable
to the Holder on the relevant Regular Record Date by virtue of having
been such Holder, and such Defaulted Interest may be paid by the
Company, at its election in each case, as provided in Clause (1) or (2)
below:

                       (1) The Company may elect to make payment of any
                  Defaulted Interest to the Persons in whose names the
                  Securities (or their respective Predecessor
                  Securities) are registered at the close of business on
                  a Special Record Date for the payment of such
                  Defaulted Interest, which shall be fixed in the
                  following manner. The Company shall notify the Trustee
                  in writing of the amount of Defaulted Interest
                  proposed to be paid on each Security, the date of the
                  proposed payment and the Special Record Date, and at
                  the same time the Company shall deposit with the
                  Trustee an amount of money equal to the aggregate
                  amount proposed to be paid in respect of such
                  Defaulted Interest or shall make arrangements
                  satisfactory to the Trustee for such deposit prior to
                  the date of the proposed payment, such money when
                  deposited to be held in trust for the benefit of the
                  Persons entitled to such Defaulted Interest as in this
                  Clause provided. The Special Record Date for the
                  payment of such Defaulted Interest shall be not more
                  than 15 days and not less than 10 days prior to the
                  date of the proposed payment and not less than 10 days
                  after the receipt by the Trustee of the notice of the
                  proposed payment. The Trustee, in the name and at the
                  expense of the Company, shall cause notice of the
                  proposed payment of such Defaulted Interest and the
                  Special Record Date therefor to be mailed, first-class
                  postage prepaid, to each Holder of Securities at such
                  Holder's address as it appears in the Security
                  Register, not less than 10 days prior to such Special
                  Record Date. Notice of the proposed payment of such
                  Defaulted Interest and the Special Record Date
                  therefor having been so mailed, such Defaulted
                  Interest shall be paid to the Persons in whose names
                  the Securities (or their respective Predecessor
                  Securities) are registered at the close of business on
                  such Special Record Date and shall no longer be
                  payable pursuant to the following Clause (2).

                        (2) The Company may make payment of any
                  Defaulted Interest in any other lawful manner not
                  inconsistent with the requirements of any securities
                  exchange on which the Securities may be listed, and
                  upon such notice as may be required by such exchange,
                  if, after notice given by the Company to the Trustee
                  of the proposed payment pursuant to this Clause, such
                  manner of payment shall be deemed practicable by the
                  Trustee.

                                      106

<PAGE>

     Subject to the foregoing provisions of this Section and Section
3.5, each Security delivered under this Indenture upon registration of
transfer of or in exchange for or in lieu of any other Security shall
carry the rights to interest accrued and unpaid, and to accrue, which
were carried by such other Security.

     Interest on any Security which is converted in accordance with
Section 12.2 during a Record Date Period shall be payable in accordance
with the provisions of Section 12.2.

SECTION 3.8.Cancellation.

     All Securities surrendered for payment, redemption, repurchase,
registration of transfer or exchange or conversion shall, if surrendered
to any Person other than the Trustee, be delivered to the Trustee. All
Securities so delivered to the Trustee shall be canceled promptly by the
Trustee. No Securities shall be authenticated in lieu of or in exchange
for any Securities canceled as provided in this Section 3.8. The Trustee
shall destroy all canceled Securities in accordance with applicable law
and its customary practices in effect from time to time.

SECTION 3.9.Computation of Interest.

     Interest on the Securities (including any additional interest)
shall be computed on the basis of a 360-day year of twelve 30-day
months.

SECTION 3.10.CUSIP and ISIN Numbers.

     The Company in issuing Securities may use "CUSIP" and "ISIN"
numbers (if then generally in use) in addition to serial numbers; if so,
the Trustee shall use such "CUSIP" and "ISIN" numbers in addition to
serial numbers in notices of redemption and repurchase as a convenience
to Holders; provided that any such notice may state that no
representation is made as to the correctness of such CUSIP and ISIN
numbers either as printed on the Securities or as contained in any
notice of a redemption or repurchase and that reliance may be placed
only on the serial or other identification numbers printed on the
Securities, and any such redemption or repurchase shall not be affected
by any defect in or omission of such CUSIP and ISIN numbers.

                                      107
<PAGE>


                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE


SECTION 4.1.Satisfaction and Discharge of Indenture

     This Indenture shall upon Company Request cease to be of further
effect (except as to any surviving rights of conversion, or registration
of transfer or exchange, or replacement of Securities herein expressly
provided for, the Company's obligations to the Trustee pursuant to
Section 6.7 and any right to receive the payment of principal of, or
interest on, such Securities or Liquidated Damages under the ninth
paragraph on the reverse of the form of Securities set forth in Section
2.2), and the Trustee, at the expense of the Company, shall execute
proper instruments in form and substance satisfactory to the Trustee
acknowledging satisfaction and discharge of this Indenture, when

                                    (1) either

                                          (A) all Securities theretofore
                                    authenticated and delivered (other
                                    than (i) Securities which have been
                                    destroyed, lost or stolen and which
                                    have been replaced or paid as
                                    provided in Section 3.6 and (ii)
                                    Securities for whose payment money
                                    has theretofore been deposited in
                                    trust or segregated and held in
                                    trust by the Company and thereafter
                                    repaid to the Company or discharged
                                    from such trust, as provided in
                                    Section 10.3) have been delivered to
                                    the Trustee for cancellation; or

                                          (B) all such Securities not
                                    theretofore delivered to the Trustee
                                    or the Paying Agent or its agent for
                                    cancellation (other than Securities
                                    referred to in clauses (i) through
                                    (iii) of clause (1)(A) above)

                                          (i)  have become due and
                                    payable, or

                                          (ii)  will have become due and
                                    payable at their Stated Maturity
                                    within one year, or

                                          (iii) are to be called for
                                    redemption within one year under
                                    arrangements satisfactory to the
                                    Trustee for the giving of notice of
                                    redemption by the Trustee in the
                                    name, and at the expense, of the
                                    Company,

                                    and the Company, in the case of clause (i),
                                    (ii) or (iii) above, has deposited or caused
                                    to be deposited with the Trustee as trust
                                    funds (immediately available to the Holders

                                      108


<PAGE>

                                    in the case of clause (i)) in trust for the
                                    purpose an amount sufficient to pay and
                                    discharge the entire indebtedness on such
                                    Securities not theretofore delivered to the
                                    Trustee for cancellation, for principal,
                                    premium, if any, and interest to the date of
                                    such deposit (in the case of Securities
                                    which have become due and payable) or to the
                                    Stated Maturity or Redemption Date, as the
                                    case may be;

                        (2) the Company has paid or caused to be paid
                  all other sums payable hereunder by the Company; and

                        (3) the Company has delivered to the Trustee an
                  Officers'  Certificate and an Opinion of Counsel,
                  each stating that all conditions precedent herein
                  provided for relating to the satisfaction and
                  discharge of this Indenture have been complied with.

      Notwithstanding the satisfaction and discharge of this Indenture,
the obligations of the Company to the Trustee under Section 6.7, the
obligations of the Company to any Authenticating Agent under Section
6.12, and, if money shall have been deposited with the Trustee pursuant
to clause (1)(B) of this Section 4.1, the obligations of the Trustee
under Section 4.2 and the last paragraph of Section 10.3 shall survive.
Funds held in trust pursuant to this Section are not subject to the
provisions of Article Thirteen.

SECTION 4.2.Application of Trust Money.

     Subject to the provisions of the last paragraph of Section 10.3,
all money deposited with the Trustee pursuant to Section 4.1 shall be
held in trust and applied by it, in accordance with the provisions of
the Securities and this Indenture, to the payment, either directly or
through any Paying Agent (including the Company acting as its own Paying
Agent), to the Persons entitled thereto, of the principal, premium, if
any, and interest for whose payment such money has been deposited with
the Trustee.

     All moneys deposited with the Trustee pursuant to Section 4.1 (and
held by it or any Paying Agent) for the payment of Securities
subsequently converted shall be returned to the Company upon Company
Request.

                                      109

<PAGE>


                                  ARTICLE FIVE

                                    REMEDIES


SECTION 5.1.Events of Default.

     "Event of Default", wherever used herein, means any one of the
following events (whatever the reason for such Event of Default and
whether it shall be occasioned by the provisions of Article Thirteen or
be voluntary or involuntary or be effected by operation of law or
pursuant to any judgment, decree or order of any court or any order,
rule or regulation of any administrative or governmental body):

                        (1)  default in the payment of the principal of
                  or premium, if any, on any Security at its Maturity;
                  or

                        (2) default in the payment of any interest
                  (including Liquidated Damages) upon any Security when
                  it becomes due and payable, and continuance of such
                  default for a period of 30 days; or

                        (3) failure by the Company to give the Company
                  Notice in accordance with Section 14.3; or

                        (4) default in the performance, or breach, of
                  any covenant or warranty of the Company in this
                  Indenture (other than a covenant or warranty a default
                  in the performance or breach of which is specifically
                  dealt with elsewhere in this Section), and continuance
                  of such default or breach for a period of 60 days
                  after there has been given, by registered or certified
                  mail, to the Company by the Trustee or to the Company
                  and the Trustee by the Holders of at least 25% in
                  principal amount of the Outstanding Securities a
                  written notice specifying such default or breach and
                  requiring it to be remedied and stating that such
                  notice is a "Notice of Default" hereunder; or

                        (5) a default under any bond, debenture, note or
                  other evidence of indebtedness for money borrowed by
                  the Company or under any mortgage, indenture or
                  instrument under which there may be issued or by which
                  there may be secured or evidenced any indebtedness for
                  money borrowed by the Company with a principal amount
                  then outstanding in excess of U.S.$5,000,000, whether
                  such indebtedness now exists or shall hereafter be
                  created, which default shall have resulted in such
                  indebtedness becoming or being declared due and
                  payable prior to the date on which it would otherwise
                  have become due and payable, without such indebtedness
                  having been discharged, or such acceleration having
                  been rescinded or annulled,

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                  and within a period of 30 days after there shall have been
                  given, by registered or certified mail, to the Company by the
                  Trustee or to the Company and the Trustee by the Holders of at
                  least 25% in aggregate principal amount of the Outstanding
                  Securities a written notice specifying such default and
                  requiring the Company to cause such indebtedness to be
                  discharged or cause such default to be cured or waived or such
                  acceleration to be rescinded or annulled and stating that such
                  notice is a "Notice of Default" hereunder; or

                        (6) the entry by a court having jurisdiction in
                  the premises of (A) a decree or order for relief in
                  respect of the Company in an involuntary case or
                  proceeding under any applicable Federal or State
                  bankruptcy, insolvency, reorganization or other
                  similar law or (B) a decree or order adjudging the
                  Company a bankrupt or insolvent, or approving as
                  properly filed a petition seeking reorganization,
                  arrangement, adjustment or composition of or in
                  respect of the Company under any applicable Federal or
                  State law, or appointing a custodian, receiver,
                  liquidator, assignee, trustee, sequestrator or other
                  similar official of the Company or of any substantial
                  part of its property, or ordering the winding up or
                  liquidation of its affairs, and the continuance of any
                  such decree or order for relief or any such other
                  decree or order unstayed and in effect for a period of
                  60 consecutive days; or

                        (7) the commencement by the Company of a
                  voluntary case or proceeding under any applicable
                  Federal or State bankruptcy, insolvency,
                  reorganization or other similar law or of any other
                  case or proceeding to be adjudicated a bankrupt or
                  insolvent, or the consent by it to the entry of a
                  decree or order for relief in respect of the Company
                  in an involuntary case or proceeding under any
                  applicable Federal or State bankruptcy, insolvency,
                  reorganization or other similar law or to the
                  commencement of any bankruptcy or insolvency case or
                  proceeding against it, or the filing by it of a
                  petition or answer or consent seeking reorganization
                  or similar relief under any applicable Federal or
                  State law, or the consent by it to the filing of such
                  petition or to the appointment of or taking possession
                  by a custodian, receiver, liquidator, assignee,
                  trustee, sequestrator or other similar official of the
                  Company or of any substantial part of its property, or
                  the making by it of an assignment for the benefit of
                  creditors, or the admission by it in writing of its
                  inability to pay its debts generally as they become
                  due, or the taking of corporate action by the Company
                  in furtherance of any such action.

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SECTION 5.2.Acceleration of Maturity; Rescission and Annulment.

      If an Event of Default (other than an Event of Default specified
in Section 5.1(1), 5.1(2), 5.1(6) or 5.1(7)) occurs and is continuing,
then in every such case the Trustee or the Holders of not less than 25%
in aggregate principal amount of the Outstanding Securities may declare
the principal of all the Securities to be due and payable immediately,
by a notice in writing to the Company (and to the Trustee if given by
the Holders), and upon any such declaration such principal and all
accrued interest thereon shall become immediately due and payable. If an
Event of Default specified in Sections 5.1(1) or 5.1(2) occurs and is
continuing, a Holder may, by notice in writing to the Company (with a
copy to the Trustee), declare the principal of such Security and any
accrued interest and Liquidated Damages thereon immediately due and
payable. If an Event of Default specified in Section 5.1(6) or 5.1(7)
occurs and is continuing, the principal of, and accrued interest on
(together with any Liquidated Damages), all the Securities shall ipso
facto become immediately due and payable without any declaration or
other Act of the Holders or any act on the part of the Trustee.

      At any time after such declaration of acceleration has been made
and before a judgment or decree for payment of the money due has been
obtained by the Trustee as hereinafter in this Article Five provided,
the Holders of a majority in principal amount of the Outstanding
Securities, by written notice to the Company and the Trustee, may
rescind and annul such declaration and its consequences if

                        (1) the Company has paid or deposited with the
                  Trustee a sum sufficient to pay

                                          (A) all overdue interest and
                                    Liquidated Damages on all
                                    Securities,

                                          (B) the principal of and
                                    premium, if any, on any Securities
                                    which have become due otherwise than
                                    by such declaration of acceleration
                                    and any interest thereon at the rate
                                    borne by the Securities,

                                          (C) interest upon overdue
                                    interest at a rate of 5% per annum,
                                    and

                                          (D) all sums paid or advanced
                                    by the Trustee hereunder and the
                                    reasonable compensation, expenses,
                                    disbursements and advances of the
                                    Trustee, its agents and counsel;

                  and

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<PAGE>

                        (2) all Events of Default, other than the
                  nonpayment of the principal of, and any premium and
                  interest on, Securities which have become due solely
                  by such declaration of acceleration, have been cured
                  or waived as provided in Section 5.13.

      No rescission or annulment referred to above shall affect any
subsequent default or impair any right consequent thereon.

SECTION 5.3.Collection of Indebtedness and Suits for Enforcement by Trustee.

                                    The Company covenants that if

                        (1) default is made in the payment of any
                  interest on any Security when it becomes due and
                  payable and such default continues for a period of 30
                  days, or

                        (2) default is made in the payment of the
                  principal of or premium, if any, on any Security at
                  the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal and interest and interest on any overdue principal and
premium, if any, and on any overdue interest, at a rate of 5% per annum, and in
addition thereto, such further amount as shall be sufficient to cover the costs
and expenses of collection, including the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel.

      If the Company fails to pay such amounts forthwith upon such
demand, the Trustee, in its own name and as trustee of an express trust,
may institute a judicial proceeding for the collection of the sums so
due and unpaid, may prosecute such proceeding to judgment or final
decree and may enforce the same against the Company or any other obligor
upon the Securities and collect the moneys adjudged or decreed to be
payable in the manner provided by law out of the property of the Company
or any other obligor upon the Securities, wherever situated.

      If an Event of Default occurs and is continuing, the Trustee may
in its discretion proceed to protect and enforce its rights and the
rights of the Holders of Securities by such appropriate judicial
proceedings as the Trustee shall deem most effectual to protect and
enforce any such rights, whether for the specific enforcement of any
covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

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SECTION 5.4.Trustee May File Proofs of Claim.

     In case of the pendency of any receivership, insolvency,
liquidation, bankruptcy, reorganization, arrangement, adjustment,
composition or other judicial proceeding relative to the Company or any
other obligor upon the Securities or the property of the Company or of
such other obligor or the creditors of either, the Trustee (irrespective
of whether the principal of, and any interest on, the Securities shall
then be due and payable as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any
demand on the Company for the payment of overdue principal or interest)
shall be entitled and empowered, by intervention in such proceeding or
otherwise,

                        (1) to file and prove a claim for the whole
                  amount of principal, premium, if any, and interest
                  owing and unpaid in respect of the Securities and take
                  such other actions, including participating as a
                  member, voting or otherwise, of any official committee
                  of creditors appointed in such matter, and to file
                  such other papers or documents, in each of the
                  foregoing cases, as may be necessary or advisable in
                  order to have the claims of the Trustee (including any
                  claim for the reasonable compensation, expenses,
                  disbursements and advances of the Trustee, its agents
                  and counsel) and of the Holders of Securities allowed
                  in such judicial proceeding, and

                         (2) to collect and receive any moneys or other
                  property payable or deliverable on any such claim and
                  to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder of Securities to make such payments to the Trustee and, in the event
that the Trustee shall consent to the making of such payments directly to the
Holders of Securities, to pay to the Trustee any amount due to it for the
reasonable compensation, expenses, disbursements and advances of the Trustee,
its agents and counsel and any other amounts due the Trustee under Section 6.7.

     Nothing herein contained shall be deemed to authorize the Trustee
to authorize or consent to or accept or adopt on behalf of any Holder of
a Security any plan of reorganization, arrangement, adjustment or
composition affecting the Securities or the rights of any Holder thereof
or to authorize the Trustee to vote in respect of the claim of any
Holder of a Security in any such proceeding; provided, however, that the
Trustee may, on behalf of such Holders, vote for the election of a
trustee in bankruptcy or similar official.

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SECTION 5.5.Trustee May Enforce Claims Without Possession
                of Securities.

     All rights of action and claims under this Indenture or the
Securities may be prosecuted and enforced by the Trustee without the
possession of any of the Securities or the production thereof in any
proceeding relating thereto, and any such proceeding instituted by the
Trustee shall be brought in its own name as trustee of an express trust,
and any recovery of judgment shall, after provision for the payment of
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and counsel, be for the ratable benefit of the
Holders of the Securities in respect of which judgment has been
recovered.

SECTION 5.6.Application of Money Collected.

     Subject to Article Thirteen, any money collected by the Trustee
pursuant to this Article Five shall be applied in the following order,
at the date or dates fixed by the Trustee and, in case of the
distribution of such money on account of principal, premium, if any, or
interest, upon presentation of the Securities, or both, as the case may
be, and the notation thereon of the payment if only partially paid and
upon surrender thereof if fully paid:

                        FIRST: To the payment of all amounts due the
                  Trustee under Section 6.7;

                        SECOND: To the payment of the amounts then due
                  and unpaid for principal of, premium, if any, or
                  interest (including any Liquidated Damages) on, the
                  Securities in respect of which or for the benefit of
                  which such money has been collected, ratably, without
                  preference or priority of any kind, according to the
                  amounts due and payable on such Securities for
                  principal, premium, if any, and interest,
                  respectively; and

                        THIRD: Any remaining amounts shall be repaid to
                  the Company.

SECTION 5.7.Limitation on Suits.

     No Holder of any Security shall have any right to institute any
proceeding, judicial or otherwise, with respect to this Indenture, or
for the appointment of a receiver or trustee, or for any other remedy
hereunder, unless:

                        (1) such Holder has previously given written
                  notice to the Trustee of a continuing Event of
                  Default;

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<PAGE>

                        (2) the Holders of not less than 25% in
                  principal amount of the Outstanding Securities shall
                  have made written request to the Trustee to institute
                  proceedings in respect of such Event of Default in its
                  own name as Trustee hereunder;

                        (3) such Holder or Holders have offered to the
                  Trustee reasonable indemnity against the costs,
                  expenses and liabilities to be incurred in compliance
                  with such request;

                        (4) the Trustee for 60 days after its receipt of
                  such notice, request and offer of indemnity has failed
                  to institute any such proceeding; and

                        (5) no direction inconsistent with such written
                  request has been given to the Trustee during such
                  60-day period by the Holders of a majority in
                  principal amount of the Outstanding Securities;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all such
Holders.

SECTION 5.8.Unconditional Right of Holders to Receive Principal, Premium
            and Interest and to Convert.

     Notwithstanding any other provision in this Indenture, the Holder
of any Security shall have the right, which is absolute and
unconditional, to receive payment of the principal of, premium, if any,
and (subject to Section 3.7) interest on such Security or payment on the
respective Stated Maturities expressed in such Security (or, in the case
of redemption or repurchase, on the Redemption Date or Repurchase Date,
as the case may be), and to convert such Security in accordance with
Article Twelve, and to institute suit for the enforcement of any such
payment and right to convert, and such rights shall not be impaired
without the consent of such Holder.

SECTION 5.9.Restoration of Rights and Remedies.

     If the Trustee or any Holder of a Security has instituted any
proceeding to enforce any right or remedy under this Indenture and such
proceeding has been discontinued or abandoned for any reason, or has
been determined adversely to the Trustee or to such Holder, then and in
every such case, subject to any determination in such proceeding, the
Company, the Trustee and the Holders of Securities shall be restored
severally and respectively to their former positions hereunder and
thereafter all rights and remedies of the Trustee and such Holders shall
continue as though no such proceeding had been instituted.

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SECTION 5.10.Rights and Remedies Cumulative.

     Except as otherwise provided with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities in the last
paragraph of Section 3.6, no right or remedy herein conferred upon or
reserved to the Trustee or to the Holders of Securities is intended to
be exclusive of any other right or remedy, and every right and remedy
shall, to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise. The assertion or employment
of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or
remedy.

SECTION 5.11.Delay or Omission Not Waiver.

     No delay or omission of the Trustee or of any Holder of any
Security to exercise any right or remedy accruing upon any Event of
Default shall impair any such right or remedy or constitute a waiver of
any such Event of Default or any acquiescence therein. Every right and
remedy given by this Article Five or by law to the Trustee or to the
Holders of Securities may be exercised from time to time, and as often
as may be deemed expedient, by the Trustee or (subject to the
limitations contained in this Indenture) by the Holders of Securities,
as the case may be.

SECTION 5.12.Control by Holders of Securities.

     The Holders of a majority in principal amount of the Outstanding
Securities shall have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on the Trustee, provided that

                        (1) such direction shall not be in conflict with
                  any rule of law or with this Indenture, and

                        (2) the Trustee may take any other action deemed
                  proper by the Trustee which is not inconsistent with
                  such direction.

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SECTION 5.13.Waiver of Past Defaults.

     The Holders, either (a) through the written consent of not less
than a majority in principal amount of the Outstanding Securities, or
(b) by the adoption of a resolution, at a meeting of Holders of the
Outstanding Securities at which a quorum is present, by the Holders of
at least 66-2/3% in principal amount of the Outstanding Securities
represented at such meeting, may on behalf of the Holders of all the
Securities waive any past default hereunder and its consequences, except
a default (1) in the payment of the principal of, premium, if any, or
interest on any Security, or (2) in respect of a covenant or provision
hereof which under Article Eight cannot be modified or amended without
the consent of the Holder of each Outstanding Security affected.

     Upon any such waiver, such default shall cease to exist, and any
Event of Default arising therefrom shall be deemed to have been cured,
for every purpose of this Indenture; but no such waiver shall extend to
any subsequent or other default or impair any right consequent thereon.

SECTION 5.14.Undertaking for Costs.

     All parties to this Indenture agree, and each Holder of any
Security by his acceptance thereof shall be deemed to have agreed, that
any court may in its discretion require, in any suit for the enforcement
of any right or remedy under this Indenture, or in any suit against the
Trustee for any action taken, suffered or omitted by it as Trustee, the
filing by any party litigant in such suit of an undertaking to pay the
costs of such suit, and that such court may in its discretion assess
reasonable costs, including reasonable attorneys' fees, against any
party litigant in such suit, having due regard to the merits and good
faith of the claims or defenses made by such party litigant; but the
provisions of this Section 5.14 shall not apply to any suit instituted
by the Company, to any suit instituted by the Trustee, to any suit
instituted by any Holder, or group of Holders, holding in the aggregate
more than 10% in principal amount of the Outstanding Securities, or to
any suit instituted by any Holder of any Security for the enforcement of
the payment of the principal of, premium, if any, or interest on any
Security or the payment on or after the respective Stated Maturity or
Maturities expressed in such Security (or, in the case of redemption or
repurchase, on or after the Redemption Date or Repurchase Date, as the
case may be) or for the enforcement of the right to convert any Security
in accordance with Article Twelve.

SECTION 5.15.Waiver of Stay, Usury or Extension Laws.

     The Company covenants (to the extent that it may lawfully do so)
that it will not at any time insist upon, or plead, or in any manner
whatsoever claim or take the benefit or advantage of, any stay, usury or
extension law wherever enacted, now or at any time hereafter in force,
which may affect the covenants or the performance of this Indenture; and
the Company (to the extent that

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it may lawfully do so) hereby expressly waives all benefit or advantage of any
such law and covenants that it will not hinder, delay or impede the execution of
any power herein granted to the Trustee, but will suffer and permit the
execution of every such power as though no such law had been enacted.

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<PAGE>


                                   ARTICLE SIX

                                   THE TRUSTEE


SECTION 6.1.Certain Duties and Responsibilities.

      (a) Except during the continuance of an Event of Default,

                        (1) the Trustee undertakes to perform such
                  duties and only such duties as are specifically set
                  forth in this Indenture, and no implied covenants or
                  obligations shall be read into this Indenture against
                  the Trustee; and

                        (2) in the absence of bad faith on its part, the
                  Trustee may conclusively rely, as to the truth of the
                  statements and the correctness of the opinions
                  expressed therein, upon certificates or opinions
                  furnished to the Trustee and conforming to the
                  requirements of this Indenture; but in the case of any
                  such certificates or opinions which by any provision
                  hereof are specifically required to be furnished to
                  the Trustee, the Trustee shall be under a duty to
                  examine the same to determine whether or not they
                  conform to the requirements of this Indenture, but not
                  to verify the contents thereof.

     (b) In case an Event of Default has occurred and is continuing, the
Trustee shall exercise such of the rights and powers vested in it by
this Indenture, and use the same degree of care and skill in their
exercise, as a prudent man would exercise or use under the circumstances
in the conduct of his own affairs.

     (c) No provision of this Indenture shall be construed to relieve
the Trustee from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that

                        (1) this paragraph (c) shall not be construed to
                  limit the effect of paragraph (a) of this Section;

                        (2) the Trustee shall not be liable for any
                  error of judgment made in good faith by a Responsible
                  Officer, unless it shall be proved that the Trustee
                  was negligent in ascertaining the pertinent facts;

                        (3) the Trustee shall not be liable with respect
                  to any action taken or omitted to be taken by it in
                  good faith in accordance with the direction of the
                  Holders of a majority in principal amount of the
                  Outstanding Securities relating to the time, method
                  and place of

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<PAGE>

                  conducting any proceeding for any remedy available to the
                  Trustee, or exercising any trust or power conferred upon the
                  Trustee, under this Indenture; and

                        (4) no provision of this Indenture shall require
                  the Trustee to expend or risk its own funds or
                  otherwise incur any financial liability in the
                  performance of any of its duties hereunder, or in the
                  exercise of any of its rights or powers, if it shall
                  have reasonable grounds for believing that repayment
                  of such funds or adequate indemnity against such risk
                  or liability is not reasonably assured to it.

     (d) Whether or not therein expressly so provided, every provision
of this Indenture relating to the conduct or affecting the liability of
or affording protection to the Trustee shall be subject to the
provisions of this Section.

SECTION 6.2.Notice of Defaults.

     Within 90 days after the occurrence of any default hereunder as to
which the Trustee has received written notice, the Trustee shall give to
all Holders of Securities, in the manner provided in Section 1.6, notice
of such default, unless such default shall have been cured or waived;
provided, however, that, except in the case of a default in the payment
of the principal of, premium, if any, or interest on any Security, the
Trustee shall be protected in withholding such notice if and so long as
the board of directors, the executive committee or a trust committee of
directors or Responsible Officers of the Trustee in good faith determine
that the withholding of such notice is in the interest of the Holders;
and provided, further, that in the case of any default of the character
specified in Section 5.1(4), no such notice to Holders of Securities
shall be given until at least 30 days after the occurrence thereof. For
the purpose of this Section, the term "default" means any event which
is, or after notice or lapse of time or both would become, an Event of
Default.

SECTION 6.3.Certain Rights of Trustee.

                        Subject to the provisions of Section 6.1:

                        (1) the Trustee may rely and shall be protected
                  in acting or refraining from acting upon any
                  resolution, Officers' Certificate, other certificate,
                  statement, instrument, opinion, report, notice,
                  request, direction, consent, order, bond, debenture,
                  note, other evidence of indebtedness or other paper or
                  document believed by it to be genuine and to have been
                  signed or presented by the proper party or parties;

                       (2) any request or direction of the Company
                  mentioned herein shall be sufficiently evidenced by a
                  Company Request or Company Order and any resolution of
                  the Board of Directors shall be sufficiently evidenced
                  by a Board Resolution;

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<PAGE>
                       (3) whenever in the administration of this
                  Indenture the Trustee shall deem it desirable that a
                  matter be proved or established prior to taking,
                  suffering or omitting any action hereunder, the
                  Trustee (unless other evidence be herein specifically
                  prescribed) may, in the absence of bad faith on its
                  part, rely upon an Officers' Certificate;

                       (4) the Trustee may consult with counsel of its
                  selection and the advice of such counsel or any
                  Opinion of Counsel shall be full and complete
                  authorization and protection in respect of any action
                  taken, suffered or omitted by it hereunder in good
                  faith and in reliance thereon;

                      (5) the Trustee shall be under no obligation to
                  exercise any of the rights or powers vested in it by
                  this Indenture at the request or direction of any of
                  the Holders of Securities pursuant to this Indenture,
                  unless such Holders shall have offered to the Trustee
                  reasonable security or indemnity against the costs,
                  expenses and liabilities which might be incurred by it
                  in compliance with such request or direction;

                      (6) the Trustee shall not be bound to make any
                  investigation into the facts or matters stated in any
                  resolution, certificate, statement, instrument,
                  opinion, report, notice, request, direction, consent,
                  order, bond, debenture, note, other evidence of
                  indebtedness or other paper or document, but the
                  Trustee may make such further inquiry or investigation
                  into such facts or matters as it may see fit, and, if
                  the Trustee shall determine to make such further
                  inquiry or investigation, it shall be entitled to
                  examine the books, records and premises of the
                  Company, personally or by agent or attorney;

                      (7) the Trustee may execute any of the trusts or
                  powers hereunder or perform any duties hereunder
                  either directly or by or through agents or attorneys
                  and the Trustee shall not be responsible for any
                  misconduct or negligence on the part of any agent or
                  attorney appointed with due care by it hereunder;

                      (8) the permissive right of the Trustee to take or
                  refrain from taking any actions enumerated in this
                  Indenture shall not be construed as a duty and the
                  Trustee shall not be answerable in any such actions
                  other than for its own negligence or willful
                  misconduct; and

                      (9) the Trustee shall not be liable for any action
                  taken, suffered or omitted to be taken by it in good
                  faith and reasonably believed by it to be authorized
                  or within the discretion or rights and powers
                  conferred upon it by the Indenture.

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SECTION 6.4.Not Responsible for Recitals or Issuance of Securities.

     The recitals contained herein and in the Securities (except the
Trustee's certificates of authentication) shall be taken as the
statements of the Company, and the Trustee assumes no responsibility for
their correctness. The Trustee makes no representations as to the
validity or sufficiency of this Indenture, of the Securities, or of the
Common Stock issuable upon the conversion of the Securities. The Trustee
shall not be accountable for the use or application by the Company of
Securities or the proceeds thereof.

SECTION 6.5.May Hold Securities, Act as Trustee Under Other Indentures.

     The Trustee, any Authenticating Agent, any Paying Agent, any
Conversion Agent or any other agent of the Company or the Trustee, in
its individual or any other capacity, may become the owner or pledgee of
Securities and may otherwise deal with the Company with the same rights
it would have if it were not Trustee, Authenticating Agent, Paying
Agent, Conversion Agent or such other agent.

     The Trustee may become and act as trustee under other indentures
under which other securities, or certificates of interest or
participation in other securities, of the Company are outstanding in the
same manner as if it were not Trustee hereunder.

SECTION 6.6.Money Held in Trust.

    Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall
be under no liability for interest on any money received by it hereunder
except as otherwise agreed in writing with the Company.

SECTION 6.7.Compensation and Reimbursement.

                        The Company agrees

                        (1) to pay to the Trustee from time to time such
                  compensation as the Company and the Trustee shall from
                  time to time agree in writing for all services
                  rendered by it hereunder (which compensation shall not
                  be limited by any provision of law in regard to the
                  compensation of a trustee of an express trust);

                        (2) except as otherwise expressly provided
                  herein, to reimburse the Trustee upon its request for
                  all reasonable expenses, disbursements and advances
                  incurred or made by the Trustee in accordance with any
                  provision of this Indenture (including

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                  the reasonable compensation and the expenses and disbursements
                  of its agents and counsel), except any such expense,
                  disbursement or advance as may be attributable to its
                  negligence or bad faith; and

                        (3) to indemnify the Trustee (and its directors,
                  officers, employees and agents) for, and to hold it
                  harmless against, any loss, liability or expense
                  incurred without negligence or bad faith on its part,
                  arising out of or in connection with the acceptance or
                  administration of this trust, including the costs,
                  expenses and reasonable attorneys' fees of defending
                  itself against any claim or liability in connection
                  with the exercise or performance of any of its powers
                  or duties hereunder.

     When the Trustee incurs expenses or renders services in connection
with an Event of Default specified in Section 5.1(6) or Section 5.1(7),
the expenses (including the reasonable charges of its counsel) and the
compensation for the services are intended to constitute expenses of the
administration under any applicable Federal or state bankruptcy,
insolvency or other similar law.

     The provisions of this Section shall survive the termination of
this Indenture or the earlier resignation or removal of the Trustee.

SECTION 6.8.Corporate Trustee Required; Eligibility.

     There shall at all times be a Trustee hereunder which shall be a
Person that is eligible pursuant to the Trust Indenture Act to act as
such, having a combined capital and surplus of at least U.S.$50,000,000,
subject to supervision or examination by federal or state authority, in
good standing and having an established place of business in the Borough
of Manhattan, The City of New York. If such corporation publishes
reports of condition at least annually, pursuant to law or to the
requirements of said supervising or examining authority, then for the
purposes of this Section, the combined capital and surplus of such
corporation shall be deemed to be its combined capital and surplus as
set forth in its most recent report of condition so published. If at any
time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, it shall resign immediately in the manner
and with the effect hereinafter specified in this Article and a
successor shall be appointed pursuant to Section 6.9.

SECTION 6.9.Resignation and Removal; Appointment of Successor.

     (a) No resignation or removal of the Trustee and no appointment of
a successor Trustee pursuant to this Article shall become effective
until the acceptance of appointment by the successor Trustee in
accordance with the applicable requirements of Section 6.10.

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      (b) The Trustee may resign at any time by giving written notice
thereof to the Company. If the instrument of acceptance by a successor
Trustee required by Section 6.10 shall not have been delivered to the
Trustee within 30 days after the giving of such notice of resignation,
the resigning Trustee may petition any court of competent jurisdiction
for the appointment of a successor Trustee.

      (c) The Trustee may be removed at any time by Act of the Holders
of a majority in principal amount of the Outstanding Securities,
delivered to the Trustee and the Company. If the instrument of
acceptance by a successor Trustee required by Section 6.10 shall not
have been delivered to the Trustee within 30 days after the giving of
such notice of removal, the removed Trustee may petition any court of
competent jurisdiction for the appointment of a successor Trustee.

       (d) If at any time:

                        (1) the Trustee shall fail to comply with
                  Section 6.8 after written request therefor by the
                  Company or by any Holder of a Security who has been a
                  bona fide Holder of a Security for at least six
                  months, or

                        (2) the Trustee shall cease to be eligible under
                  Section 6.8 and shall fail to resign after written
                  request therefor by the Company or any such Holder, or

                        (3) the Trustee shall become incapable of acting
                  or shall be adjudged a bankrupt or insolvent or a
                  receiver of the Trustee or of its property shall be
                  appointed or any public officer shall take charge or
                  control of the Trustee or of its property or affairs
                  for the purpose of rehabilitation, conservation or
                  liquidation,

then, in any such case (i) the Company by a Board Resolution may remove the
Trustee, or (ii) subject to Section 5.14, any Holder of a Security who has been
a bona fide Holder of a Security for at least six months may, on behalf of
himself and all others similarly situated, petition any court of competent
jurisdiction for the removal of the Trustee and the appointment of a successor
Trustee.

     (e) If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any
cause, the Company, by a Board Resolution, shall promptly appoint a
successor Trustee and shall comply with the applicable requirements of
this Section and Section 6.10. If, within one year after such
resignation, removal or incapability, or the occurrence of such vacancy,
a successor Trustee shall be appointed by Act of the Holders of a
majority in principal amount of the Outstanding Securities delivered to
the Company and the retiring Trustee, the successor Trustee so appointed
shall, forthwith upon its acceptance of such appointment in accordance
with the applicable requirements of Section 6.10, become the successor

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Trustee and supersede the successor Trustee appointed by the Company. If no
successor Trustee shall have been so appointed by the Company or the Holders of
Securities and accepted appointment in the manner required by this Section and
Section 6.10, any Holder of a Security who has been a bona fide Holder of a
Security for at least six months may, on behalf of himself and all others
similarly situated, petition any court of competent jurisdiction for the
appointment of a successor Trustee.

     (f) The Company shall give notice of each resignation and each
removal of the Trustee and each appointment of a successor Trustee to
all Holders of Securities in the manner provided in Section 1.6. Each
notice shall include the name of the successor Trustee and the address
of its Corporate Trust Office.

SECTION 6.10.Acceptance of Appointment by Successor.

     Every successor Trustee appointed hereunder shall execute,
acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or
removal of the retiring Trustee shall become effective and such
successor Trustee, without any further act, deed or conveyance, shall
become vested with all the rights, powers, trusts and duties of the
retiring Trustee; but, on the request of the Company or the successor
Trustee, such retiring Trustee shall, upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee
all the rights, powers and trusts of the retiring Trustee and shall duly
assign, transfer and deliver to such successor Trustee all property and
money held by such retiring Trustee hereunder. Upon request of any such
successor Trustee, the Company shall execute any and all instruments for
more fully and certainly vesting in and confirming to such successor
Trustee all such rights, powers and trusts.

     No successor Trustee shall accept its appointment unless at the
time of such acceptance such successor Trustee shall be eligible under
this Article.

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SECTION 6.11.Merger, Conversion, Consolidation or Succession to Business.

     Any corporation into which the Trustee may be merged or converted
or with which it may be consolidated, or any corporation resulting from
any merger, conversion or consolidation to which the Trustee shall be a
party, or any corporation succeeding to all or substantially all of the
corporate trust business of the Trustee, shall be the successor of the
Trustee hereunder, provided such corporation shall be otherwise eligible
under this Article, without the execution or filing of any paper or any
further act on the part of any of the parties hereto. In case any
Securities shall have been authenticated, but not delivered, by the
Trustee then in office, any successor by merger, conversion or
consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same
effect as if such successor Trustee had itself authenticated such
Securities.

SECTION 6.12.Authenticating Agents.

     The Trustee may, with the consent of the Company, appoint an
additional Authenticating Agent or Agents acceptable to the Company with
respect to the Securities which shall be authorized to act on behalf of
the Trustee to authenticate Securities issued upon exchange or
substitution pursuant to this Indenture.

      Securities authenticated by an Authenticating Agent shall be
entitled to the benefits of this Indenture and shall be valid and
obligatory for all purposes as if authenticated by the Trustee
hereunder, and every reference in this Indenture to the authentication
and delivery of Securities by the Trustee or the Trustee's certificate
of authentication shall be deemed to include authentication and delivery
on behalf of the Trustee by an Authenticating Agent and a certificate of
authentication executed on behalf of the Trustee by an Authenticating
Agent. Each Authenticating Agent shall be subject to acceptance by the
Company and shall at all times be a corporation organized and doing
business under the laws of the United States of America, any State
thereof, or the District of Columbia, and authorized under such laws to
act as Authenticating Agent and subject to supervision or examination by
government or other fiscal authority. If at any time an Authenticating
Agent shall cease to be eligible in accordance with the provisions of
this Section 6.12, such Authenticating Agent shall resign immediately in
the manner and with the effect specified in this Section 6.12.

     Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which such
Authenticating Agent shall be a party, or any corporation succeeding to
the corporate agency or corporate trust business of an Authenticating
Agent, shall continue to be an Authenticating Agent, provided such
corporation shall be otherwise eligible under this Section 6.12,

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<PAGE>

without the execution or filing of any paper or any further act on the part of
the Trustee or the Authenticating Agent.

     An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any
time terminate the agency of an Authenticating Agent by giving written
notice thereof to such Authenticating Agent and to the Company. Upon
receiving such a notice of resignation or upon such a termination, or in
case at any time such Authenticating Agent shall cease to be eligible in
accordance with the provisions of this Section 6.12, the Trustee may
appoint a successor Authenticating Agent which shall be subject to
acceptance by the Company. Any successor Authenticating Agent upon
acceptance of its appointment hereunder shall become vested with all the
rights, powers and duties of its predecessor hereunder, with like effect
as if originally named as an Authenticating Agent. No successor
Authenticating Agent shall be appointed unless eligible under the
provisions of this Section 6.12.

     The Company agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section 6.12.

     If an Authenticating Agent is appointed with respect to the
Securities pursuant to this Section 6.12, the Securities may have
endorsed thereon, in addition to or in lieu of the Trustee's
certification of authentication, an alternative certificate of
authentication in the following form:

     This is one of the Securities referred to in the within-mentioned
Indenture.

Dated:                                       MARINE MIDLAND BANK
                                                 as Trustee
                                                 By [Authenticating Agent],
                                                  as Authenticating Agent


                                              By ___________________________
                                                    Authorized Signatory

SECTION 6.13.Disqualification; Conflicting Interests.

     If the Trustee has or shall acquire a conflicting interest within
the meaning of the Trust Indenture Act, the Trustee shall either
eliminate such interest or resign, to the extent and in the manner
provided by, and subject to the provisions of, the Trust Indenture Act
and this Indenture.

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SECTION 6.14.Preferential Collection of Claims Against Company.

     If and when the Trustee shall be or become a creditor of the
Company (or any other obligor upon the Securities), the Trustee shall be
subject to the provisions of the Trust Indenture Act regarding the
collection of claims against the Company (or any such other obligor).

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                                  ARTICLE SEVEN

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE


SECTION 7.1.Company May Consolidate, Etc., Only on Certain Terms.

     The Company shall not consolidate or merge with or into any other
Person or, directly or indirectly, convey, transfer, sell, lease or
otherwise dispose of all or substantially all of its properties and
assets to any Person (other than a wholly-owned subsidiary), and the
Company may not permit any Person (other than a wholly-owned subsidiary)
to consolidate with or merge into the Company or convey, transfer, sell,
lease or otherwise dispose of all or substantially all of its properties
and assets to the Company, unless:

                        (1) in case the Company shall consolidate or
                  merge with or into any other Person or, directly or
                  indirectly, convey, transfer, sell, lease or otherwise
                  dispose of all or substantially all of its properties
                  and assets to any Person, the Person formed by such
                  consolidation or into or with which the Company is
                  merged or the Person which acquires by conveyance,
                  transfer, sale, or which leases the properties and
                  assets of the Company, shall be a corporation, limited
                  liability company, partnership or trust, shall be
                  organized and validly existing under the laws of the
                  United States of America, any State thereof or the
                  District of Columbia and shall expressly assume, by an
                  indenture supplemental hereto, executed and delivered
                  to the Trustee, in form satisfactory to the Trustee,
                  the due and punctual payment of the principal of,
                  premium, if any, and interest (including Liquidated
                  Damages payable, if any, pursuant to Section 10.11) on
                  all of the Securities, as applicable, and the
                  performance or observance of every covenant of this
                  Indenture on the part of the Company to be performed
                  or observed and shall have provided for conversion
                  rights in accordance with Article Twelve;

                        (2) immediately after giving effect to such
                  transaction and treating any indebtedness which
                  becomes an obligation of the Company as a result of
                  such transaction as having been incurred by the
                  Company at the time of such transaction, no Event of
                  Default, and no event which, after notice or lapse of
                  time or both, would become an Event of Default, shall
                  have happened and be continuing; and

                        (3) the Company has delivered to the Trustee an
                  Officers' Certificate and an Opinion of Counsel, each
                  stating that such consolidation, merger, conveyance,
                  transfer or lease and, if a supplemental indenture is
                  required in connection with such transaction, such
                  supplemental indenture comply with this Article and
                  that all conditions precedent herein provided for
                  relating to such transaction have been complied with,
                  together with any documents required under Section
                  8.3.

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<PAGE>

SECTION 7.2.Successor Substituted.

     Upon any consolidation or merger of the Company with or into any
other Person or any conveyance, transfer or lease of all or
substantially all the properties and assets of the Company in accordance
with Section 7.1, the successor Person formed by such consolidation or
into or with which the Company is merged or to which such conveyance,
transfer or lease is made shall succeed to, and be substituted for, and
may exercise every right and power of, the Company under this Indenture
with the same effect as if such successor Person had been named as the
Company herein, and thereafter, except in the case of a lease, the
predecessor Person shall be relieved of all obligations and covenants
under this Indenture and the Securities.

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<PAGE>


                                  ARTICLE EIGHT

                             SUPPLEMENTAL INDENTURES


SECTION 8.1.Supplemental Indentures Without Consent of Holders of Securities.

     Without the consent of any Holders of Securities, the Company, when
authorized by a Board Resolution, and the Trustee, at any time and from
time to time, may enter into one or more indentures supplemental hereto
for any of the following purposes:

                        (1) to evidence the succession of another Person
                  to the Company and the assumption by any such
                  successor of the covenants and obligations of the
                  Company herein and in the Securities as permitted by
                  this Indenture; or

                        (2) to add to the covenants of the Company for
                  the benefit of the Holders of Securities, or to
                  surrender any right or power herein conferred upon the
                  Company; or

                        (3) to secure the Securities; or

                        (4) to make provision with respect to the
                  conversion rights of Holders of Securities pursuant to
                  Section 12.11; or

                        (5) to make any changes or modifications to this
                  Indenture necessary in connection with the
                  registration of any Registrable Securities under the
                  Securities Act as contemplated by Section 10.11,
                  provided, such action pursuant to this clause (5)
                  shall not adversely affect the interests of the
                  Holders of Securities; or

                        (6) to comply with the requirements of the Trust
                  Indenture Act or the rules and regulations of the
                  Commission thereunder in order to effect or maintain
                  the qualification of this Indenture under the Trust
                  Indenture Act, as contemplated by this Indenture or
                  otherwise; or

                        (7) to cure any ambiguity, to correct or
                  supplement any provision herein which may be
                  inconsistent with any other provision herein or which
                  is otherwise defective, or to make any other
                  provisions with respect to matters or questions
                  arising under this Indenture as the Company and the
                  Trustee may deem necessary or desirable.

                                      132


<PAGE>

     Upon Company Request, accompanied by a Board Resolution authorizing
the execution of any such supplemental indenture, and subject to and
upon receipt by the Trustee of the documents described in Section 8.3
hereof, the Trustee shall join with the Company in the execution of any
supplemental indenture authorized or permitted by the terms of this
Indenture and to make any further appropriate agreements and
stipulations which may be therein contained.

SECTION 8.2.Supplemental Indentures with Consent of Holders of Securities.

     With either (a) the written consent of the Holders of not less than
a majority in principal amount of the Outstanding Securities, by the Act
of said Holders delivered to the Company and the Trustee, or (b) by the
adoption of a resolution, at a meeting of Holders of the Outstanding
Securities at which a quorum is present, by the Holders of 66-2/3% in
principal amount of the Outstanding Securities represented at such
meeting, the Company, when authorized by a Board Resolution, and the
Trustee may enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of modifying in
any manner the rights of the Holders of Securities under this Indenture;
provided, however, that no such supplemental indenture shall, without
the consent or affirmative vote of the Holder of each Outstanding
Security affected thereby,

                        (1) change the Stated Maturity of the principal
                  of, or any installment of interest on, any Security or
                  reduce the principal amount or the rate of interest
                  payable thereon or any premium payable upon redemption
                  or mandatory repurchase thereof, or change the coin or
                  currency in which any Security or the interest or any
                  premium thereon or any other amount in respect thereof
                  is payable, or impair the right to institute suit for
                  the enforcement of any payment in respect of any
                  Security on or after the Stated Maturity thereof (or,
                  in the case of redemption or any repurchase, on or
                  after the Redemption Date or Repurchase Date, as the
                  case may be) or, except as permitted by Section 12.11,
                  adversely affect the right to convert any Security as
                  provided in Article Twelve, or modify the provisions
                  of this Indenture with respect to the subordination of
                  the Securities in a manner adverse to the Holders of
                  Securities, or

                        (2) reduce the requirements of Section 9.4 for
                  quorum or voting, or reduce the percentage in
                  principal amount of the Outstanding Securities the
                  consent of whose Holders is required for any such
                  supplemental indenture or the consent of whose Holders
                  is required for any waiver (of compliance with certain
                  provisions of this Indenture or certain defaults
                  hereunder and their consequences) provided for in this
                  Indenture, or

                        (3) modify the obligation of the Company to
                  maintain an office or agency in the Borough of
                  Manhattan, The City of New York pursuant to Section
                  10.2, or

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<PAGE>

                        (4) modify any of the provisions of this Section
                  or Section 5.13 or 10.12, except to increase any
                  percentage contained herein or therein or to provide
                  that certain other provisions of this Indenture cannot
                  be modified or waived without the consent of the
                  Holder of each Outstanding Security affected thereby;
                  or

                        (5) modify the provisions of Article Fourteen in
                  a manner adverse to the Holders; or

                        (6) modify any of the provisions of Section 10.9
                  or 10.10.

     It shall not be necessary for any Act of Holders of Securities
under this Section to approve the particular form of any proposed
supplemental indenture, but it shall be sufficient if such Act shall
approve the substance thereof.

SECTION 8.3.Execution of Supplemental Indentures.

     In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications
thereby of the trusts created by this Indenture, the Trustee shall be
entitled to receive, and (subject to Sections 6.1 and 6.3) shall be
fully protected in relying upon, an Opinion of Counsel stating that the
execution of such supplemental indenture is authorized or permitted by
this Indenture, and that such supplemental indenture has been duly
authorized, executed and delivered by the Company and constitutes a
valid and legally binding obligation of the Company enforceable against
the Company in accordance with its terms. The Trustee may, but shall not
be obligated to, enter into any such supplemental indenture which
affects the Trustee's own rights, duties or immunities under this
Indenture or otherwise.

SECTION 8.4.Effect of Supplemental Indentures.

     Upon the execution of any supplemental indenture under this
Article, this Indenture shall be modified in accordance therewith, and
such supplemental indenture shall form a part of this Indenture for all
purposes; and every Holder of Securities theretofore or thereafter
authenticated and delivered hereunder shall be bound thereby.

SECTION 8.5.Reference in Securities to Supplemental Indentures.

     Securities authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall if
required by the Trustee, bear a notation in form approved by the Trustee
as to any matter provided for in such supplemental indenture. If the
Company shall so determine, new Securities so modified as to conform, in
the opinion of the Company and the Trustee, to any such supplemental
indenture may be prepared and executed by the Company and authenticated
and delivered by the Trustee in exchange for Outstanding Securities.

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<PAGE>

SECTION 8.6.Notice of Supplemental Indentures.

     Promptly after the execution by the Company and the Trustee of any
supplemental indenture pursuant to the provisions of Section 8.2, the
Company shall give notice to all Holders of Securities of such fact,
setting forth in general terms the substance of such supplemental
indenture, in the manner provided in Section 1.6. Any failure of the
Company to give such notice, or any defect therein, shall not in any way
impair or affect the validity of any such supplemental indenture.

                                      135

<PAGE>


                                  ARTICLE NINE

                        MEETINGS OF HOLDERS OF SECURITIES


SECTION 9.1.      Purposes for Which Meetings May Be Called.

     A meeting of Holders of Securities may be called at any time and
from time to time pursuant to this Article to make, give or take any
request, demand, authorization, direction, notice, consent, waiver or
other action provided by this Indenture to be made, given or taken by
Holders of Securities.

SECTION 9.2.Call, Notice and Place of Meetings.

     (a) The Trustee may at any time call a meeting of Holders of
Securities for any purpose specified in Section 9.1, to be held at such
time and at such place in the Borough of Manhattan, The City of New
York, as the Trustee shall determine. Notice of every meeting of Holders
of Securities, setting forth the time and the place of such meeting and
in general terms the action proposed to be taken at such meeting, shall
be given, in the manner provided in Section 1.6, not less than 21 nor
more than 180 days prior to the date fixed for the meeting.

     (b) In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% in principal amount of the
Outstanding Securities shall have requested the Trustee to call a
meeting of the Holders of Securities for any purpose specified in
Section 9.1, by written request setting forth in reasonable detail the
action proposed to be taken at the meeting, and the Trustee shall not
have made the first publication of the notice of such meeting within 21
days after receipt of such request or shall not thereafter proceed to
cause the meeting to be held as provided herein, then the Company or the
Holders of Securities in the amount specified, as the case may be, may
determine the time and the place in the Borough of Manhattan, The City
of New York, for such meeting and may call such meeting for such
purposes by giving notice thereof as provided in paragraph (a) of this
Section.

SECTION 9.3.Persons Entitled to Vote at Meetings.

     To be entitled to vote at any meeting of Holders of Securities, a
Person shall be (a) a Holder of one or more Outstanding Securities, or
(b) a Person appointed by an instrument in writing as proxy for a Holder
or Holders of one or more Outstanding Securities by such Holder or
Holders. The only Persons who shall be entitled to be present or to
speak at any meeting of Holders shall be the Persons entitled to vote at
such meeting and their counsel, any representatives of the Trustee and
its counsel and any representatives of the Company and its counsel.

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<PAGE>

SECTION 9.4.Quorum; Action.

     The Persons entitled to vote a majority in principal amount of the
Outstanding Securities shall constitute a quorum. In the absence of a
quorum within 30 minutes of the time appointed for any such meeting, the
meeting shall, if convened at the request of Holders of Securities, be
dissolved. In any other case, the meeting may be adjourned for a period
of not less than 10 days as determined by the chairman of the meeting
prior to the adjournment of such meeting. In the absence of a quorum at
any such adjourned meeting, such adjourned meeting may be further
adjourned for a period not less than 10 days as determined by the
chairman of the meeting prior to the adjournment of such adjourned
meeting (subject to repeated applications of this sentence). Notice of
the reconvening of any adjourned meeting shall be given as provided in
Section 9.2(a), except that such notice need be given only once not less
than five days prior to the date on which the meeting is scheduled to be
reconvened. Notice of the reconvening of an adjourned meeting shall
state expressly the percentage of the principal amount of the
Outstanding Securities which shall constitute a quorum.

     Subject to the foregoing, at the reconvening of any meeting
adjourned for a lack of a quorum, the Persons entitled to vote 25% in
principal amount of the Outstanding Securities at the time shall
constitute a quorum for the taking of any action set forth in the notice
of the original meeting.

     At a meeting or an adjourned meeting duly reconvened and at which a
quorum is present as aforesaid, any resolution and all matters (except
as limited by the proviso to Section 8.2) shall be effectively passed
and decided if passed or decided by the Persons entitled to vote not
less than 66-2/3% in principal amount of Outstanding Securities
represented and entitled to vote at such meeting.

     Any resolution passed or decisions taken at any meeting of Holders
of Securities duly held in accordance with this Section shall be binding
on all the Holders of Securities, whether or not present or represented
at the meeting. The Trustee shall, in the name and at the expense of the
Company, notify all the Holders of Securities of any such resolutions or
decisions pursuant to Section 1.6.

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<PAGE>

SECTION 9.5.Determination of Voting Rights; Conduct and Adjournment of Meetings.

        (a) Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable
for any meeting of Holders of Securities in regard to proof of the
holding of Securities and of the appointment of proxies and in regard to
the appointment and duties of inspectors of votes, the submission and
examination of proxies, certificates and other evidence of the right to
vote, and such other matters concerning the conduct of the meeting as it
shall deem appropriate. Except as otherwise permitted or required by any
such regulations, the holding of Securities shall be proved in the
manner specified in Section 1.4 and the appointment of any proxy shall
be proved in the manner specified in Section 1.4 or by having the
signature of the Person executing the proxy.

     (b) The Trustee shall, by an instrument in writing, appoint a
temporary chairman (which may be the Trustee) of the meeting, unless the
meeting shall have been called by the Company or by Holders of
Securities as provided in Section 9.2(b), in which case the Company or
the Holders of Securities calling the meeting, as the case may be, shall
in like manner appoint a temporary chairman. A permanent chairman and a
permanent secretary of the meeting shall be elected by vote of the
Persons entitled to vote a majority in principal amount of the
Outstanding Securities represented at the meeting.

     (c) At any meeting, each Holder of a Security or proxy shall be
entitled to one vote for each U.S.$1,000 principal amount of Securities
held or represented by him; provided, however, that no vote shall be
cast or counted at any meeting in respect of any Security challenged as
not Outstanding and ruled by the chairman of the meeting to be not
Outstanding. The chairman of the meeting shall have no right to vote,
except as a Holder of a Security or proxy.

     (d) Any meeting of Holders of Securities duly called pursuant to
Section 9.2 at which a quorum is present may be adjourned from time to
time by Persons entitled to vote a majority in principal amount of the
Outstanding Securities represented at the meeting, and the meeting may
be held as so adjourned without further notice.

                                      138
<PAGE>

SECTION 9.6.Counting Votes and Recording Action of Meetings.

     The vote upon any resolution submitted to any meeting of Holders of
Securities shall be by written ballots on which shall be subscribed the
signatures of the Holders of Securities or of their representatives by
proxy and the principal amounts at Stated Maturity and serial numbers of
the Outstanding Securities held or represented by them. The permanent
chairman of the meeting shall appoint two inspectors of votes who shall
count all votes cast at the meeting for or against any resolution and
who shall make and file with the secretary of the meeting their verified
written reports in duplicate of all votes cast at the meeting. A record,
at least in duplicate, of the proceedings of each meeting of Holders of
Securities shall be prepared by the secretary of the meeting and there
shall be attached to said record the original reports of the inspectors
of votes on any vote by ballot taken thereat and affidavits by one or
more Persons having knowledge of the facts setting forth a copy of the
notice of the meeting and showing that said notice was given as provided
in Section 9.2 and, if applicable, Section 9.4. Each copy shall be
signed and verified by the affidavits of the permanent chairman and
secretary of the meeting and one such copy shall be delivered to the
Company and another to the Trustee to be preserved by the Trustee, the
latter to have attached thereto the ballots voted at the meeting. Any
record so signed and verified shall be conclusive evidence of the
matters therein stated.

                                      139
<PAGE>


                                   ARTICLE TEN

                                    COVENANTS


SECTION 10.1.Payment of Principal, Premium and Interest.

     The Company covenants and agrees that it will duly and punctually
pay the principal of and premium, if any, and interest on the Securities
in accordance with the terms of the Securities and this Indenture. The
Company will deposit or cause to be deposited with the Trustee, one
Business Day prior to the Stated Maturity of any Security or one
Business Day prior to the due date for any installment of interest, all
payments so due, which payments shall be in immediately available funds
on the date of such Stated Maturity or due date, as the case may be.

SECTION 10.2.Maintenance of Offices or Agencies.

     The Company hereby appoints the Corporate Trust Office of the
Trustee as its agent in the Borough of Manhattan, The City of New York,
where Securities may be presented or surrendered for payment, where
Registered Securities may be surrendered for registration of transfer or
exchange, where Registered Securities may be surrendered for conversion
and where notices and demands to or upon the Company in respect of the
Securities and this Indenture may be served.

     The Company may at any time and from time to time vary or terminate
the appointment of any such agent or appoint any additional agents for
any or all of such purposes; provided, however, that until all of the
Securities have been delivered to the Trustee for cancellation, or
moneys sufficient to pay the principal of, premium, if any, and interest
on the Securities have been made available for payment and either paid
or returned to the Company pursuant to the provisions of Section 10.3,
the Company will maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be presented or
surrendered for payment and conversion, where Securities may be
surrendered for registration of transfer or exchange and where notices
and demands to or upon the Company in respect of the Securities and this
Indenture may be served. The Company will give prompt written notice to
the Trustee, and notice to the Holders in accordance with Section 1.6,
of the appointment or termination of any such agents and of the location
and any change in the location of any such office or agency.

     If at any time the Company shall fail to maintain any such required
office or agency, or shall fail to furnish the Trustee with the address
thereof, presentations and surrenders may be made and notices and
demands may be served on the Corporate Trust Office of the Trustee.

                                      140
<PAGE>

SECTION 10.3.Money for Security Payments to Be Held in Trust.

     If the Company shall act as its own Paying Agent, it will, on or
before each due date of the principal of, premium, if any, or interest
(together with any Liquidated Damages in respect thereof) on any of the
Securities, segregate and hold in trust for the benefit of the Persons
entitled thereto a sum sufficient to pay the principal, premium, if any,
or interest (together with any Liquidated Damages in respect thereof) so
becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and the Company will promptly notify the
Trustee of its action or failure so to act.

     Whenever the Company shall have one or more Paying Agents, it will,
one Business Day prior to each due date of the principal of, premium, if
any, or interest (together with any Liquidated Damages in respect
thereof) on any Securities, deposit with the Trustee a sum sufficient to
pay the principal, premium, if any, or interest (together with any
Liquidated Damages in respect thereof) so becoming due, such sum to be
held for the benefit of the Persons entitled to such principal, premium,
if any, or interest, and (unless such Paying Agent is the Trustee) the
Company will promptly notify the Trustee of any failure so to act.

     The Company will cause each Paying Agent other than the Trustee to
execute and deliver to the Trustee an instrument in which such Paying
Agent shall agree with the Trustee, subject to the provisions of this
Section, that such Paying Agent will:

                        (1) hold all sums held by it for the payment of
                  the principal of, premium, if any, or interest on
                  Securities for the benefit of the Persons entitled
                  thereto until such sums shall be paid to such Persons
                  or otherwise disposed of as herein provided;

                        (2) give the Trustee notice of any default by
                  the Company (or any other obligor upon the Securities)
                  in the making of any payment of principal, premium, if
                  any, or interest; and

                        (3) at any time during the continuance of any
                  such default, upon the written request of the Trustee,
                  forthwith pay to the Trustee all sums so held by such
                  Paying Agent.

     The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose,
pay, or by Company Order direct any Paying Agent to pay, to the Trustee
all sums held in trust by the Company or such Paying Agent, such sums to
be held by the Trustee upon the same trusts as those upon which such
sums were held by the Company or such Paying Agent; and, upon such
payment by any Paying Agent to the Trustee, such Paying Agent shall be
released from all further liability with respect to such money.

                                      141


<PAGE>

     Any money deposited with the Trustee or any Paying Agent, or then
held by the Company, in trust for the payment of the principal of,
premium, if any, or interest (including Liquidated Damages) on any
Security and remaining unclaimed for two years after such principal,
premium, if any, or interest has become due and payable shall be paid to
the Company on Company Request, or (if then held by the Company) shall
be discharged from such trust; and the Holder of such Security shall
thereafter, as an unsecured general creditor, look only to the Company
for payment thereof, and all liability of the Trustee or such Paying
Agent with respect to such trust money, and all liability of the Company
as trustee thereof, shall thereupon cease.

SECTION 10.4.Existence.

     Subject to Article Seven, the Company will do or cause to be done
all things necessary to preserve and keep in full force and effect its
existence, rights (charter and statutory) and franchises; provided,
however, that the Company shall not be required to preserve any such
right or franchise if the Board of Directors shall determine that the
preservation thereof is no longer desirable in the conduct of the
business of the Company and that the loss thereof is not disadvantageous
in any material respect to the Holders.

SECTION 10.5.Maintenance of Properties.

    The Company will cause all properties used or useful in the conduct
of its business or the business of any Subsidiary to be maintained and
kept in good condition, repair and working order and supplied with all
necessary equipment and will cause to be made all necessary repairs,
renewals, replacements, betterments and improvements thereof, all as in
the judgment of the Company may be necessary so that the business
carried on in connection therewith may be properly and advantageously
conducted at all times; provided, however, that nothing in this Section
shall prevent the Company from discontinuing the operation or
maintenance of any of such properties if such discontinuance is, in the
judgment of the Company, desirable in the conduct of its business or the
business of any Subsidiary and not disadvantageous in any material
respect to the Holders.

                                      142
<PAGE>

SECTION 10.6.Payment of Taxes and Other Claims.

     The Company will pay or discharge, or cause to be paid or
discharged, before the same may become delinquent, (1) all taxes,
assessments and governmental charges levied or imposed upon the Company
or any Subsidiary or upon the income, profits or property of the Company
or any Subsidiary, (2) all lawful claims for labor, materials and
supplies which, if unpaid, might by law become a lien or charge upon the
property of the Company or any Subsidiary, and (3) all stamps and other
duties, if any, which may be imposed by the United States or the United
Kingdom or any political subdivision thereof or therein in connection
with the issuance, transfer, exchange or conversion of any Securities or
with respect to this Indenture; provided, however, that, in the case of
clauses (1) and (2), the Company shall not be required to pay or
discharge or cause to be paid or discharged any such tax, assessment,
charge or claim whose amount, applicability or validity is being
contested in good faith by appropriate proceedings.

SECTION 10.7.Registration and Listing.

     Within a reasonable time prior to the Exchange Date, the Company
(i) will effect all registrations with, and obtain all approvals by, all
governmental authorities that may be necessary under any United States
Federal or state law (including the Securities Act, the Exchange Act and
state securities and Blue Sky laws) before the shares of Common Stock
issuable upon conversion of Securities may be lawfully issued and
delivered, and thereafter publicly traded (if permissible under the
Securities Act), and qualified or listed as contemplated by clause (ii)
(it being understood that the Company shall not be required to register
the Securities under the Securities Act, except pursuant to the
Registration Rights Agreement referred to in Section 10.11); and (ii)
will qualify the shares of Common Stock required to be issued and
delivered upon conversion of Securities, prior to such issuance or
delivery, for quotation on the Nasdaq National Market or, if the Common
Stock is not then quoted on the Nasdaq National Market, list the Common
Stock on each national securities exchange on which outstanding Common
Stock is listed or quoted at the time of such delivery. Nothing in this
Section 10.7 will limit the application of Section 10.11.

                                      143
<PAGE>

SECTION 10.8.Statement by Officers as to Default.

     The Company shall deliver to the Trustee within 120 days after the
end of each fiscal year of the Company an Officers' Certificate stating
that in the course of performance by the signers of their duties as such
officers of the Company they would normally obtain knowledge of whether
any default exists in the performance and observance of any of the
terms, provisions and conditions of this Indenture and whether the
Company has kept, observed, performed and fulfilled its obligations
under this Indenture. Such Certificate shall further state, as to each
such officer signing such Certificate, to the best of the knowledge of
such officer, as of the date of such Officers' Certificate, (a) whether
any such default exists, (b) whether the Company during the preceding
fiscal year kept, observed, performed and fulfilled each and every
covenant and obligation of the Company under this Indenture and (c)
whether there was any default in the performance and observance of any
of the terms, provisions or conditions of this Indenture during such
preceding fiscal year. If the officers signing the Certificate know of
such a default, whether then existing or occurring during such preceding
fiscal year, the Officers' Certificate shall describe such default and
its status with particularity. The Company shall also promptly notify
the Trustee if the Company's fiscal year is changed so that the end
thereof is on any date other than the then current fiscal year end date.

     The Company will deliver to the Trustee, forthwith upon becoming
aware of any default in the performance or observance of any covenant,
agreement or condition contained in this Indenture, or any Event of
Default, an Officers' Certificate specifying with particularity such
default or Event of Default and further stating what action the Company
has taken, is taking or proposes to take with respect thereto.

     Any notice required to be given under this Section 10.8 shall be
delivered to the Trustee at its Corporate Trust Office.

                                      144
<PAGE>

SECTION 10.9.Delivery of Certain Information.

     At any time when the Company is not subject to Section 13 or 15(d)
of the Exchange Act, upon the request of a Holder of a Restricted
Security or the holder of shares of Common Stock issued upon conversion
thereof, the Company will promptly furnish or cause to be furnished Rule
144A Information (as defined below) to such Holder of Restricted
Securities or such holder of shares of Common Stock issued upon
conversion of Restricted Securities, or to a prospective purchaser of
any such security designated by any such Holder or holder, as the case
may be, to the extent required to permit compliance by such Holder or
holder with Rule 144A under the Securities Act (or any successor
provision thereto) in connection with the resale of any such security;
provided, however, that the Company shall not be required to furnish
such information in connection with any request made on or after the
date which is three years from the later of (i) the date such a security
(or any such predecessor security) was last acquired from the Company or
(ii) the date such a security (or any such predecessor security) was
last acquired from an "affiliate" of the Company within the meaning of
Rule 144 under the Securities Act (or any successor provision thereto).
"Rule 144A Information" shall be such information as is specified
pursuant to Rule 144A(d)(4) under the Securities Act (or any successor
provision thereto).

SECTION 10.10.Resale of Certain Securities; Reporting Issuer.

     During the period beginning on the last date of original issuance
of the Securities and ending on the date that is three years from such
date, the Company will not, and will use its best efforts not to permit
any of its "affiliates" (as defined under Rule 144 under the Securities
Act or any successor provision thereto) to, resell (x) any Securities
which constitute "restricted securities" under Rule 144 or (y) any
securities into which the Securities have been converted under this
Indenture which constitute "restricted securities" under Rule 144, that
in either case have been reacquired by any of them. The Trustee shall
have no responsibility in respect of the Company's performance of its
agreement in the preceding sentence.

                                      145
<PAGE>

SECTION 10.11.Registration Rights.

     The Company agrees that the Holders from time to time of
Registrable Securities (as defined below) are entitled to the benefits
of a Registration Rights Agreement, dated as of May 17, 1996 (the
"Registration Rights Agreement"), executed by the Company. Pursuant to
the Registration Rights Agreement, the Company has agreed for the
benefit of the Holders from time to time of Registrable Securities, at
the Company's expense, (i) to file within 90 days after the first date
of original issuance of the Securities, a shelf registration statement
(the "Shelf Registration Statement") with the Commission with respect to
resales of the Registrable Securities, (ii) to use its best efforts to
cause such Shelf Registration Statement to be declared effective by the
Commission within the 180 days after such date, and (iii) to use its
best efforts to maintain such Shelf Registration Statement continuously
effective under the Securities Act for a period of three years from the
last date of original issuance of the Securities or, if earlier, (A)
until there are no outstanding Registrable Securities or (B) until, in
the written opinion of independent counsel to the Company, all
outstanding Registrable Securities held by persons that are not
affiliates of the Company may be resold without registration under the
Securities Act pursuant to Rule 144(k) under the Securities Act or any
successor provision thereof.

     If (i) on or prior to 90 days following the date of original
issuance of the Securities, a Shelf Registration Statement has not been
filed with the Commission, or (ii) on or prior to the 180th day
following the first date of original issuance of the Securities, such
Shelf Registration Statement is not declared effective (each, a
"Registration Default"), additional interest ("Liquidated Damages") will
accrue on the Securities from and including the day following such
Registration Default to but excluding the day on which such Registration
Default has been cured. Liquidated Damages will be paid semi-annually in
arrears, with the first semi-annual payment due on the first Interest
Payment Date in respect of the Securities following the date on which
such Liquidated Damages begin to accrue, and will accrue at a rate per
annum equal to an additional one-quarter of one percent (0.25%) of the
principal amount of the Securities to and including the 90th day
following such Registration Default and at a rate per annum equal to
one-half of one percent (0.50%) thereof from and after the 91st day
following such Registration Default. In the event that the Shelf
Registration Statement ceases to be effective prior to the third annual
anniversary of the initial effective date of the Shelf Registration
Statement or such earlier date as is provided in the Registration Rights
Agreement for a period in excess of 60 days, whether or not consecutive,
during any 12-month period, then the interest rate borne by the
Securities shall increase by an additional one-half of one percent
(0.50%) per annum on the 61st day of the applicable 12-month period such
Shelf Registration Statement ceases to be effective to but excluding the
day on which the Shelf Registration Statement again becomes effective.

                                      146
<PAGE>

     Whenever in this Indenture there is mentioned, in any context, the
payment of the principal of, premium, if any, or interest on, or in
respect of, any Security, such mention shall be deemed to include
mention of the payment of Liquidated Damages provided for in this
Section to the extent that, in such context, Liquidated Damages are,
were or would be payable in respect thereof pursuant to the provisions
of this Section and express mention of the payment of Liquidated Damages
(if applicable) in any provisions hereof shall not be construed as
excluding Liquidated Damages in those provisions hereof where such
express mention is not made.

     For the purposes of the Registration Rights Agreement, "Registrable
Securities" means all or any portion of the Securities issued from time
to time under this Indenture and the shares of Common Stock issuable
upon conversion of such Securities, including any Securities initially
issued in bearer form and later exchanged for Securities; provided;
however, that a Security ceases to be a Registrable Security when it is
no longer a Restricted Registrable Security. For the purposes of the
Registration Rights Agreement, "Restricted Registrable Security" means
any Security or share of Common Stock issuable upon conversion thereof
except any such Security or share of Common Stock which (i) has been
effectively registered under the Securities Act and sold in a manner
contemplated by the Shelf Registration Statement, (ii) has been
transferred in compliance with Rule 144 or is transferable pursuant to
paragraph (k) of such Rule 144 (or any successor provision thereto),
(iii) has been sold in compliance with Regulation S and does not
constitute the unsold allotment of a distributor within the meaning of
Regulation S, or (iv) has otherwise been transferred and a new Security
or share of Common Stock not subject to transfer restrictions under the
Securities Act has been delivered by or on behalf of the Company in
accordance with Section 3.5(b) of this Indenture.

     If a Security is a Registrable Security, and the Holder thereof
elects to sell such Security pursuant to the Shelf Registration
Statement then, by such election, the Holder of such Security will have
agreed to be bound by the terms of the Registration Rights Agreement
relating to the Registrable Securities which are the subject of such
election.

     The Company does not grant registration rights under this Section
10.11. This Section 10.11 is qualified in its entirety by the
Registration Rights Agreement (a copy of which is available for
inspection by any Holder of Registrable Securities at the Company's
offices as provided in the Registration Rights Agreement).

     For the purposes of the Registration Rights Agreement, other than
the giving of notices pursuant thereto, the term "Holder" includes any
Person that has a beneficial interest in any Global Security.

                                      147
<PAGE>

SECTION 10.12.Waiver of Certain Covenants.

     The Company may omit in any particular instance to comply with any
covenant or conditions set forth in Sections 10.4 to 10.6, inclusive
(other than a covenant or condition which under Article Eight cannot be
modified or amended without the consent of the Holder of each
Outstanding Security affected), if before the time for such compliance
the Holders shall, through the written consent of, or the adoption of a
resolution at a meeting of Holders of the Outstanding Securities at
which a quorum is present by, not less than a majority in principal
amount of the Outstanding Securities, either waive such compliance in
such instance or generally waive compliance with such covenant or
condition, but no such waiver shall extend to or affect such covenant or
condition except to the extent so expressly waived, and, until such
waiver shall become effective, the obligations of the Company and the
duties of the Trustee or any Paying or Conversion Agent in respect of
any such covenant or condition shall remain in full force and effect.

                                      148
<PAGE>


                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES


SECTION 11.1.Right of Redemption.

     The Securities may be redeemed in accordance with the provisions of
the forms of Securities set forth in Section 2.2.

SECTION 11.2.Applicability of Article.

     Redemption of Securities at the election of the Company or
otherwise, as permitted or required by any provision of the Securities
or this Indenture, shall be made in accordance with such provision and
this Article Eleven.

SECTION 11.3.Election to Redeem; Notice to Trustee.

     The election of the Company to redeem any Securities shall be
evidenced by a Board Resolution. In case of any redemption at the
election of the Company of any of the Securities, the Company shall, at
least 60 days prior to the Redemption Date fixed by the Company (unless
a shorter notice shall be satisfactory to the Trustee), notify the
Trustee in writing of such Redemption Date. If the Securities are to be
redeemed pursuant to an election of the Company which is subject to a
condition specified in the forms of Securities set forth in Section 2.2,
the Company shall furnish the Trustee with an Officers' Certificate
stating that the Company is entitled to effect such redemption and
setting forth a statement of facts showing that the conditions precedent
to the right of the Company so to redeem have occurred.

SECTION 11.4.Selection by Trustee of Securities to Be Redeemed.

     If less than all the Securities are to be redeemed, the particular
Securities to be redeemed shall be selected by the Trustee within two
Business Days after it receives the notice described in 11.3, from the
Outstanding Securities not previously called for redemption. Partial
redemption must be in an amount not less than U.S.$1,000,000 principal
amount of Securities.

     If any Security selected for partial redemption is converted in
part before termination of the conversion right with respect to the
portion of the Security so selected, the converted portion of such
Security shall be deemed (so far as may be) to be the portion selected
for redemption. Securities which have been converted during a selection
of Securities to be redeemed may be treated by the Trustee as
Outstanding for the purpose of such selection.

                                      149
<PAGE>

     The Trustee shall promptly notify the Company and each Security
Registrar in writing of the securities selected for redemption and, in
the case of any Securities selected for partial redemption, the
principal amount thereof to be redeemed.

     For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall
relate, in the case of any Securities redeemed or to be redeemed only in
part, to the portion of the principal amount of such Securities which
has been or is to be redeemed.

SECTION 11.5.Notice of Redemption.

     Notice of redemption shall be given in the manner provided in
Section 1.6 to the Holders of Securities to be redeemed not less than 30
nor more than 60 days prior to the Redemption Date, and such notice
shall be irrevocable.

                        All notices of redemption shall state:

                        (1)  the Redemption Date,

                        (2)  the Redemption Price, and accrued
                  interest, if any,

                        (3) if less than all Outstanding Securities are
                  to be redeemed,  the aggregate  principal amount of
                  Securities to be redeemed and the aggregate  principal
                  amount of Securities which will be outstanding after
                  such partial redemption,

                        (4) that on the Redemption Date the
                  Redemption Price, and accrued interest, if any, will
                  become due and payable upon each such Security to be
                  redeemed, and that interest thereon shall cease to
                  accrue on and after said date,

                         (5) the Conversion Rate, the date on which
                  the right to convert the Securities to be redeemed
                  will terminate and the places where such Securities
                  may be surrendered for conversion, and

                         (6) the place or places where such Securities,
                  maturing after the Redemption Date, are to be
                  surrendered for payment of the Redemption Price and
                  accrued interest, if any.

     In case of a partial redemption, the first notice given shall
specify the last date on which exchanges or transfers of Securities may
be made pursuant to Section 3.5 and the second

                                      150
<PAGE>

notice shall specify the serial and CUSIP or ISIN numbers (if any) and the
portions thereof called for redemption.

     Notice of redemption of Securities to be redeemed at the election
of the Company shall be given by the Company or, at the Company's
written request, by the Trustee in the name of and at the expense of the
Company. Notice of redemption of Securities to be redeemed at the
election of the Company received by the Trustee shall be given by the
Trustee to each Paying Agent in the name of and at the expense of the
Company.

SECTION 11.6.Deposit of Redemption Price.

     Not less than one Business Day prior to any Redemption Date, the
Company shall deposit with the Trustee or with the Paying Agent if so
directed by the Trustee (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 10.3) an
amount of money (which shall be in immediately available funds on such
Redemption Date) sufficient to pay the Redemption Price of, and (except
if the Redemption Date shall be an Interest Payment Date) accrued
interest on, all the Securities which are to be redeemed on that date
other than any Securities called for redemption on that date which have
been converted prior to the date of such deposit.

     If any Security called for redemption is converted, any money
deposited with the Trustee or with a Paying Agent or so segregated and
held in trust for the redemption of such Security shall (subject to any
right of the Holder of such Security, if a Security, or any Predecessor
Security to receive interest as provided in the last paragraph of
Section 3.7) be paid to the Company on Company Request or, if then held
by the Company, shall be discharged from such trust.

SECTION 11.7.Securities Payable on Redemption Date.

     Notice of redemption having been given as aforesaid, the Securities
so to be redeemed shall, on the Redemption Date, become due and payable
at the Redemption Price therein specified and from and after such date
(unless the Company shall default in the payment of the Redemption
Price, including accrued interest) such Securities shall cease to bear
interest. Upon surrender of any Security for redemption in accordance
with said notice, maturing after the Redemption Date, such Security
shall be paid by the Company at the Redemption Price together with
accrued and unpaid interest to the Redemption Date; provided, however,
that installments of interest on Securities whose Stated Maturity is on
or prior to the Redemption Date shall be payable to the Holders of such
Securities, or one or more Predecessor Securities, registered as such on
the relevant Record Date according to their terms and the provisions of
Section 3.7.

                                      151

<PAGE>

     If any Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal amount of, premium, if
any, and, to the extent permitted by applicable law, accrued interest on
such Security shall, until paid, bear interest from the Redemption Date
at a rate of 5% per annum and such Security shall remain convertible
until the principal of such Security (or portion thereof, as the case
may be) shall have been paid or duly provided for.

SECTION 11.8.Securities Redeemed in Part.

     Any Security which is to be redeemed only in part shall be
surrendered at an office or agency of the Company designated for that
purpose pursuant to Section 10.2 (with, if the Company or the Trustee so
requires, due endorsement by, or a written instrument of transfer in
form satisfactory to the Company and the Trustee duly executed by, the
Holder thereof or his attorney duly authorized in writing), and the
Company shall execute, and the Trustee shall authenticate and make
available for delivery to the Holder of such Security without service
charge, a new Security or Securities, of any authorized denomination as
requested by such Holder, in aggregate principal amount equal to and in
exchange for the unredeemed portion of the principal of the Security so
surrendered.

                                      152
<PAGE>


                                 ARTICLE TWELVE

                            CONVERSION OF SECURITIES


SECTION 12.1.Conversion Privilege and Conversion Rate.

     Subject to and upon compliance with the provisions of this Article,
at the option of the Holder thereof, any Security may be converted into
fully paid and nonassessable shares (calculated as to each conversion to
the nearest 1/100th of a share) of Common Stock of the Company at the
Conversion Rate, determined as hereinafter provided, in effect at the
time of conversion. Such conversion right shall commence on August 20,
1996 and expire at the close of business on May 15, 2001, subject, in
the case of conversion of any Global Security, to any Applicable
Procedures. In case a Security or portion thereof is called for
redemption at the election of the Company or the Holder thereof
exercises his right to require the Company to repurchase the Security,
such conversion right in respect of the Security, or portion thereof so
called, shall expire at the close of business on the Redemption Date or
the Repurchase Date, as the case may be, unless the Company defaults in
making the payment due upon redemption or repurchase, as the case may be
(in each case subject as aforesaid to any Applicable Procedures with
respect to any Global Security).

     The rate at which shares of Common Stock shall be delivered upon
conversion (herein called the "Conversion Rate") shall be initially
24.1080 shares of Common Stock for each U.S.$1,000 principal amount of
Securities. The Conversion Rate shall be adjusted in certain instances
as provided in this Article Twelve.

                                      153

<PAGE>

SECTION 12.2.Exercise of Conversion Privilege.

                                      154

<PAGE>

     In order to exercise the conversion privilege, the Holder of any
Security to be converted shall surrender such Security, duly endorsed or
assigned to the Company or in blank (in the case of any Security), at
any office or agency of the Company maintained for that purpose pursuant
to Section 10.2, accompanied by a duly signed conversion notice
substantially in the form set forth in Section 2.4 stating that the
Holder elects to convert such Security or, if less than the entire
principal amount thereof is to be converted, the portion thereof to be
converted. Each Security surrendered for conversion (in whole or in
part) during the period from the close of business on any Regular Record
Date next preceding any Interest Payment Date to the opening of business
on such Interest Payment Date shall (except in the case of any Security
or portion thereof which has been called for redemption on a Redemption
Date, or is repurchasable on a Repurchase Date, occurring, in either
case, within such period) be accompanied by payment in New York Clearing
House funds or other funds acceptable to the Company of an amount equal
to the interest payable on such Interest Payment Date on the principal
amount of such Security (or part thereof, as the case may be) being
surrendered for conversion. The interest so payable on such Interest
Payment Date with respect to any Security (or portion thereof, if
applicable) which has been called for redemption on a Redemption Date,
or is repurchasable on a Repurchase Date, occurring, in either case,
during the period from the close of business on any Record Date next
preceding any Interest Payment Date to the opening of business on such
Interest Payment Date, which Security (or portion thereof, if
applicable) is surrendered for conversion during such period, shall be
paid to the Holder of such Security being converted in an amount equal
to the interest that would have been payable on such Security if such
Security had been converted as of the close of business on such Interest
Payment Date. The interest so payable on such Interest Payment Date in
respect of any Security (or portion thereof, as the case may be) which
has not been called for redemption on a Redemption Date, or is not
eligible for repurchase on a Repurchase Date, occurring, in either case,
during the period from the close of business on any Record Date next
preceding any Interest Payment Date to the opening of business on such
Interest Payment Date, which Security (or portion thereof, as the case
may be) is surrendered for conversion during such period, shall be paid
to the Holder of such Security as of such Regular Record Date. Interest
payable on any Interest Payment Date in respect of any Security
surrendered for conversion or repurchase on or after an Interest Payment
Date shall be paid to the Holder of such Security as of the next
preceding Regular Record Date, notwithstanding the exercise of the right
of conversion or repurchase. Except as provided in this paragraph and
subject to the last paragraph of Section 3.7, no cash payment or
adjustment shall be made upon any conversion on account of any interest
accrued from the Interest Payment Date next preceding the conversion
date, in respect of any Security (or part thereof, as the case may be)
surrendered for conversion, or on account of any dividends on the Common
Stock issued upon conversion. The Company's delivery to the Holder of
the number of shares of Common Stock (and cash in lieu of fractions
thereof, as provided in this Indenture) into which a Security is
convertible will be deemed to satisfy the Company's obligation to pay
the principal amount of the Security.

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     Securities shall be deemed to have been converted immediately prior
to the close of business on the day of surrender of such Securities for
conversion in accordance with the foregoing provisions, and at such time
the rights of the Holders of such Securities as Holders shall cease, and
the Person or Persons entitled to receive the Common Stock issuable upon
conversion shall be treated for all purposes as the record holder or
holders of such Common Stock at such time. As promptly as practicable on
or after the conversion date, the Company shall issue and deliver to the
Trustee, for delivery to the Holder, a certificate or certificates for
the number of full shares of Common Stock issuable upon conversion,
together with payment in lieu of any fraction of a share, as provided in
Section 12.3.

     All shares of Common Stock delivered upon such conversion of
Restricted Securities shall rank PARI PASSU with other shares of Common
Stock of the Company and shall bear restrictive legends substantially in
the form of the legends required to be set forth on the Restricted
Securities pursuant to Section 3.5 and shall be subject to the
restrictions on transfer provided in such legends. Neither the Trustee
nor any agent maintained for the purpose of such conversion shall have
any responsibility for the inclusion or content of any such restrictive
legends on such Common Stock; provided, however, that the Trustee or any
agent maintained for the purpose of such conversion shall have provided,
to the Company or to the Company's transfer agent for such Common Stock,
prior to or concurrently with a request to the Company to deliver such
Common Stock, written notice that the Securities delivered for
conversion are Restricted Securities.

     In the case of any Security which is converted in part only, upon
such conversion the Company shall execute and the Trustee shall
authenticate and deliver to the Holder thereof, at the expense of the
Company, a new Security or Securities of authorized denominations in an
aggregate principal amount equal to the unconverted portion of the
principal amount of such Security. A Security may be converted in part,
but only if the principal amount of such Security to be converted is any
integral multiple of U.S.$1,000 and the principal amount of such
security to remain Outstanding after such conversion is equal to
U.S.$1,000 or any integral multiple of $1,000 in excess thereof.

     If shares of Common Stock to be issued upon conversion of a
Restricted Security, or Securities to be issued upon conversion of a
Restricted Security in part only, are to be registered in a name other
than that of the beneficial owner of such Restricted Security, then such
Holder must deliver to the Conversion Agent a Surrender Certificate,
dated the date of surrender of such Restricted Security and signed by
such beneficial owner, as to compliance with the restrictions on
transfer applicable to such Restricted Security. Neither the Trustee nor
any Conversion Agent, Registrar or Transfer Agent shall be required to
register in a name other than that of the beneficial owner, shares of
Common Stock or Securities issued upon conversion of any such Restricted
Security not so accompanied by a properly completed Surrender
Certificate.

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SECTION 12.3.Fractions of Shares.

     No fractional shares of Common Stock shall be issued upon
conversion of any Security or Securities. If more than one Security
shall be surrendered for conversion at one time by the same Holder, the
number of full shares which shall be issuable upon conversion thereof
shall be computed on the basis of the aggregate principal amount of the
Securities (or specified portions thereof) so surrendered. Instead of
any fractional share of Common Stock which would otherwise be issuable
upon conversion of any Security or Securities (or specified portions
thereof), the Company shall calculate and pay a cash adjustment in
respect of such fraction (calculated to the nearest 1/100th of a share)
in an amount equal to the same fraction of the Closing Price Per Share
at the close of business on the day of conversion or, alternatively, the
Company shall round up to the next higher whole share.

SECTION 12.4.Adjustment of Conversion Rate.

     The Conversion Rate shall be subject to adjustments from time to
time as follows:

     (1) In case the Company shall pay or make a dividend or other
distribution on any class of capital stock of the Company payable in
shares of Common Stock, the Conversion Rate in effect at the opening of
business on the day following the date fixed for the determination of
shareholders entitled to receive such dividend or other distribution
shall be increased by dividing such Conversion Rate by a fraction of
which the numerator shall be the number of shares of Common Stock
outstanding at the close of business on the date fixed for such
determination and the denominator shall be the sum of such number of
shares and the total number of shares constituting such dividend or
other distribution, such increase to become effective immediately after
the opening of business on the day following the date fixed for such
determination. For the purposes of this paragraph (1), the number of
shares of Common Stock at any time outstanding shall not include shares
held in the treasury of the Company but shall include shares issuable in
respect of scrip certificates issued in lieu of fractions of shares of
Common Stock. The Company will not pay any dividend or make any
distribution on shares of Common Stock held in the treasury of the
Company.

     (2) In case the Company shall issue rights, options or warrants to
all holders of its Common Stock entitling them to subscribe for or
purchase shares of Common Stock at a price per share less than the
current market price per share (determined as provided in paragraph (8)
of this Section 12.4) of the Common Stock on the date fixed for the
determination of shareholders entitled to receive such rights, options
or warrants, the Conversion Rate in effect at the opening of business on
the day following the date fixed for such determination shall be
increased by dividing such Conversion Rate by a fraction of which the
numerator shall be the number of shares of Common Stock outstanding at
the close of business on the date fixed for such determination plus the
number of shares of Common Stock which the aggregate of the offering
price of the total number of shares of Common Stock so offered for
subscription or purchase would purchase at such current market price and
the denominator shall be the number of shares of Common Stock
outstanding at the close of business on the date fixed for such
determination plus the number

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of shares of Common Stock so offered for subscription or purchase, such increase
to become effective immediately after the opening of business on the day
following the date fixed for such determination. For the purposes of this
paragraph (2), the number of shares of Common Stock at any time outstanding
shall not include shares held in the treasury of the Company but shall include
shares issuable in respect of scrip certificates issued in lieu of fractions of
shares of Common Stock. The Company will not issue any rights, options or
warrants in respect of shares of Common Stock held in the treasury of the
Company.

     (3) In case outstanding shares of Common Stock shall be subdivided
into a greater number of shares of Common Stock, the Conversion Rate in
effect at the opening of business on the day following the day upon
which such subdivision becomes effective shall be proportionately
increased, and, conversely, in case outstanding shares of Common Stock
shall each be combined into a smaller number of shares of Common Stock,
the Conversion Rate in effect at the opening of business on the day
following the day upon which such combination becomes effective shall be
proportionately reduced, such increase or reduction, as the case may be,
to become effective immediately after the opening of business on the day
following the day upon which such subdivision or combination becomes
effective.

     (4) In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock evidences of its indebtedness, shares
of any class of capital stock, or other property (including securities,
but excluding (i) any rights, options or warrants referred to in
paragraph (2) of this Section, (ii) any dividend or distribution paid
exclusively in cash, (iii) any dividend or distribution referred to in
paragraph (1) of this Section and (iv) any merger or consolidation to
which Section 12.11 applies), the Conversion Rate shall be adjusted so
that the same shall equal the rate determined by dividing the Conversion
Rate in effect immediately prior to the close of business on the date
fixed for the determination of shareholders entitled to receive such
distribution by a fraction of which the numerator shall be the current
market price per share (determined as provided in paragraph (8) of this
Section 12.4) of the Common Stock on the date fixed for such
determination less the then fair market value (as determined by the
Board of Directors, whose determination shall be conclusive and
described in a Board Resolution filed with the Trustee) of the portion
of the assets, shares or evidences of indebtedness so distributed
applicable to one share of Common Stock and the denominator shall be
such current market price per share of the Common Stock, such adjustment
to become effective immediately prior to the opening of business on the
day following the date fixed for the determination of shareholders
entitled to receive such distribution.

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     (5) In case the Company shall, by dividend or otherwise, distribute
to all holders of its Common Stock cash (excluding any cash that is
distributed upon a merger or consolidation to which Section 12.11
applies or as part of a distribution referred to in paragraph (4) of
this Section) in an aggregate amount that, combined together with (I)
the aggregate amount of any other cash distributions to all holders of
its Common Stock made exclusively in cash within the 12 months preceding
the date of payment of such distribution and in respect of which no
adjustment pursuant to this paragraph (5) has been made and (II) the
aggregate of any cash plus the fair market value (as determined by the
Board of Directors, whose determination shall be conclusive and
described in a Board Resolution) of consideration payable in respect of
any tender offer by the Company or any of its subsidiaries for all or
any portion of the Common Stock concluded within the 12 months preceding
the date of payment of such distribution and in respect of which no
adjustment pursuant to paragraph (6) of this Section 12.4 has been made
(the "combined cash and tender amount") exceeds 12.5% of the product of
the current market price per share (determined as provided in paragraph
(8) of this Section 12.4) of the Common Stock on the date for the
determination of holders of shares of Common Stock entitled to receive
such distribution times the number of shares of Common Stock outstanding
on such date (the "aggregate current market price"), then, and in each
such case, immediately after the close of business on such date for
determination, the Conversion Rate shall be adjusted so that the same
shall equal the rate determined by dividing the Conversion Rate in
effect immediately prior to the close of business on the date fixed for
determination of the shareholders entitled to receive such distribution
by a fraction (i) the numerator of which shall be equal to the current
market price per share (determined as provided in paragraph (8) of this
Section) of the Common Stock on the date fixed for such determination
less an amount equal to the quotient of (x) the excess of such combined
cash and tender amount over such aggregate current market price divided
by (y) the number of shares of Common Stock outstanding on such date for
determination and (ii) the denominator of which shall be equal to the
current market price per share (determined as provided in paragraph (8)
of this Section 12.4) of the Common Stock on such date for
determination.

     (6) In case a tender offer made by the Company or any Subsidiary
for all or any portion of the Common Stock shall expire and such tender
offer (as amended upon the expiration thereof) shall require the payment
to shareholders (based on the acceptance (up to any maximum specified in
the terms of the tender offer) of Purchased Shares (as defined below))
of an aggregate consideration having a fair market value (as determined
by the Board of Directors, whose determination shall be conclusive and
described in a Board Resolution) that combined together with (I) the
aggregate of the cash plus the fair market value (as determined by the
Board of Directors, whose determination shall be conclusive and
described in a Board Resolution), as of the expiration of such tender
offer, of consideration payable in respect of any other tender offer by
the Company or any Subsidiary for all or any portion of the Common Stock
expiring within the 12 months preceding the expiration of such tender
offer and in respect of which no adjustment pursuant to this paragraph
(6) has been made and (II) the aggregate amount of any cash
distributions to all holders of the

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<PAGE>

Company's Common Stock within 12 months preceding the expiration of such tender
offer and in respect of which no adjustment pursuant to paragraph (5) of this
Section has been made (the "combined tender and cash amount") exceeds 10% of the
product of the current market price per share of the Common Stock (determined as
provided in paragraph (8) of this Section 12.4) as of the last time (the
"Expiration Time") tenders could have been made pursuant to such tender offer
(as it may be amended) times the number of shares of Common Stock outstanding
(including any tendered shares) as of the Expiration Time, then, and in each
such case, immediately prior to the opening of business on the day after the
date of the Expiration Time, the Conversion Rate shall be adjusted so that the
same shall equal the rate determined by dividing the Conversion Rate immediately
prior to close of business on the date of the Expiration Time by a fraction (i)
the numerator of which shall be equal to (A) the product of (I) the current
market price per share of the Common Stock (determined as provided in paragraph
(8) of this Section 12.4) on the date of the Expiration Time multiplied by (II)
the number of shares of Common Stock outstanding (including any tendered shares)
on the Expiration Time less (B) the combined tender and cash amount, and (ii)
the denominator of which shall be equal to the product of (A) the current market
price per share of the Common Stock (determined as provided in paragraph (8) of
this Section 12.4) as of the Expiration Time multiplied by (B) the number of
shares of Common Stock outstanding (including any tendered shares) as of the
Expiration Time less the number of all shares validly tendered and not withdrawn
as of the Expiration Time (the shares deemed so accepted up to any such maximum,
being referred to as the "Purchased Shares").

     (7) The reclassification of Common Stock into securities other than
Common Stock (other than any reclassification upon a consolidation or
merger to which Section 12.11 applies) shall be deemed to involve (a) a
distribution of such securities other than Common Stock to all holders
of Common Stock (and the effective date of such reclassification shall
be deemed to be "the date fixed for the determination of shareholders
entitled to receive such distribution" and "the date fixed for such
determination" within the meaning of paragraph (4) of this Section), and
(b) a subdivision or combination, as the case may be, of the number of
shares of Common Stock outstanding immediately prior to such
reclassification into the number of shares of Common Stock outstanding
immediately thereafter (and the effective date of such reclassification
shall be deemed to be "the day upon which such subdivision becomes
effective" or "the day upon which such combination becomes effective",
as the case may be, and "the day upon which such subdivision or
combination becomes effective" within the meaning of paragraph (3) of
this Section 12.4).

     (8) For the purpose of any computation under paragraphs (2), (4),
(5) or (6) of this Section 12.4, the current market price per share of
Common Stock on any date shall be calculated by the Company and be
deemed to be the average of the daily Closing Prices Per Share for the
five consecutive Trading Days selected by the Company commencing not
more than 10 Trading Days before, and ending not later than, the earlier
of the day in question and the day before the "ex" date with respect to
the issuance or distribution requiring such computation. For purposes of
this

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paragraph, the term "`ex' date", when used with respect to any issuance or
distribution, means the first date on which the Common Stock trades regular way
in the applicable securities market or on the applicable securities exchange
without the right to receive such issuance or distribution.

     (9) No adjustment in the Conversion Rate shall be required unless
such adjustment (plus any adjustments not previously made by reason of
this paragraph (9)) would require an increase or decrease of at least
one percent in such rate; provided, however, that any adjustments which
by reason of this paragraph (9) are not required to be made shall be
carried forward and taken into account in any subsequent adjustment. All
calculations under this Article shall be made to the nearest cent or to
the nearest one-hundredth of a share, as the case may be.

     (10) The Company may make such increases in the Conversion Rate,
for the remaining term of the Securities or any shorter term, in
addition to those required by paragraphs (1), (2), (3), (4), (5) and (6)
of this Section 12.4, as it considers to be advisable in order to avoid
or diminish any income tax to any holders of shares of Common Stock
resulting from any dividend or distribution of stock or issuance of
rights or warrants to purchase or subscribe for stock or from any event
treated as such for income tax purposes. The Company shall have the
power to resolve any ambiguity or correct any error in this paragraph
(10) and its actions in so doing shall, absent manifest error, be final
and conclusive.


SECTION 12.5.Notice of Adjustments of Conversion Rate.

     Whenever the Conversion Rate is adjusted as herein provided:

                        (1) the Company shall compute the adjusted
                  Conversion Rate in accordance with Section 12.4 and
                  shall prepare a certificate signed by the Chief
                  Financial Officer of the Company setting forth the
                  adjusted Conversion Rate and showing in reasonable
                  detail the facts upon which such adjustment is based,
                  and such certificate shall promptly be filed with the
                  Trustee and with each Conversion Agent; and

                        (2) a notice stating that the Conversion Rate
                  has been adjusted and setting forth the adjusted
                  Conversion Rate shall forthwith be prepared, and as
                  soon as practicable after it is prepared, such notice
                  shall be provided by the Company to all Holders in
                  accordance with Section 1.6.

Neither the Trustee nor any Conversion Agent shall be under any duty or
responsibility with respect to any such certificate or the information and
calculations contained therein, except to exhibit the same to any Holder of
Securities desiring inspection thereof at its office during normal business
hours.

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SECTION 12.6.Notice of Certain Corporate Action.

                        In case:

                        (a) the Company shall declare a dividend (or any
                  other distribution) on its Common Stock payable (i)
                  otherwise than exclusively in cash or (ii) exclusively
                  in cash in an amount that would require any adjustment
                  pursuant to Section 12.4; or

                        (b) the Company shall authorize the granting to
                  the holders of its Common Stock of rights, options or
                  warrants to subscribe for or purchase any shares of
                  capital stock of any class or of any other rights; or

                        (c) of any reclassification of the Common Stock
                  of the Company, or of any consolidation, merger or
                  share exchange to which the Company is a party and for
                  which approval of any shareholders of the Company is
                  required, or of the conveyance, sale, transfer or
                  lease of all or substantially all of the assets of the
                  Company; or

                        (d) of the voluntary or involuntary dissolution,
                  liquidation or winding up of the Company; or

                        (e) the Company or any Subsidiary shall commence
                  a tender offer for all or a portion of the Company's
                  outstanding shares of Common Stock (or shall amend any
                  such tender offer);

then the Company shall cause to be filed at each office or agency maintained for
the purpose of conversion of Securities pursuant to Section 10.2, and shall
cause to be provided to all Holders in accordance with Section 1.6, at least 20
days (or 10 days in any case specified in clause (a) or (b) above) prior to the
applicable record, expiration or effective date hereinafter specified, a notice
stating (x) the date on which a record is to be taken for the purpose of such
dividend, distribution, rights, options or warrants, or, if a record is not to
be taken, the date as of which the holders of Common Stock of record to be
entitled to such dividend, distribution, rights, options or warrants are to be
determined, (y) the date on which the right to make tenders under such tender
offer expires or (z) the date on which such reclassification, consolidation,
merger, conveyance, transfer, sale, lease, dissolution, liquidation or winding
up is expected to become effective, and the date as of which it is expected that
holders of Common Stock of record shall be entitled to exchange their shares of
Common Stock for securities, cash or other property deliverable upon such
reclassification, consolidation, merger, conveyance, transfer, sale, lease,
dissolution, liquidation or winding up. Neither the failure to give such notice
or the notice referred to in the following paragraph nor any

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defect therein shall affect the legality or validity of the proceedings
described in clauses (a) through (e) of this Section 12.6. If at the time the
Trustee shall not be the conversion agent, a copy of such notice shall also
forthwith be filed by the Company with the Trustee.

     The preceding paragraph to the contrary notwithstanding, the
Company shall cause to be filed at each office or agency maintained for
the purpose of conversion of Securities pursuant to Section 10.2, and
shall cause to be provided to all Holders in accordance with Section
1.6, notice of any tender offer by the Company or any Subsidiary for all
or any portion of the Common Stock at or about the time that such notice
of tender offer is provided to the public generally.

SECTION 12.7.Company to Reserve Common Stock.

     The Company shall at all times reserve and keep available, free
from preemptive rights, out of its authorized but unissued Common Stock,
for the purpose of effecting the conversion of Securities, the full
number of shares of Common Stock then issuable upon the conversion of
all Outstanding Securities.

SECTION 12.8.Taxes on Conversions.

     Except as provided in the next sentence, the Company will pay any
and all taxes and duties that may be payable in respect of the issue or
delivery of shares of Common Stock on conversion of Securities pursuant
hereto. The Company shall not, however, be required to pay any tax or
duty which may be payable in respect of any transfer involved in the
issue and delivery of shares of Common Stock in a name other than that
of the Holder of the Security or Securities to be converted, and no such
issue or delivery shall be made unless and until the Person requesting
such issue has paid to the Company the amount of any such tax or duty,
or has established to the satisfaction of the Company that such tax or
duty has been paid.

SECTION 12.9.Covenant as to Common Stock.

     The Company agrees that all shares of Common Stock which may be
delivered upon conversion of Securities, upon such delivery, will have
been duly authorized and validly issued and will be fully paid and
nonassessable and, except as provided in Section 12.8, the Company will
pay all taxes, liens and charges with respect to the issue thereof.

SECTION 12.10.Cancellation of Converted Securities.

     All Securities delivered for conversion shall be delivered to the
Trustee or the Paying Agent or its agent to be canceled by or at the
direction of the Trustee, which shall dispose of the same as provided in
Section 3.8.

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SECTION 12.11.Provision in Case of Consolidation, Merger or Sale of Assets.

     In case of any consolidation or merger of the Company with or into
any other Person, any merger of another Person with or into the Company
(other than a merger which does not result in any reclassification,
conversion, exchange or cancellation of outstanding shares of Common
Stock of the Company) or any conveyance, sale, transfer or lease of all
or substantially all of the assets of the Company, the Person formed by
such consolidation or resulting from such merger or which acquires such
assets, as the case may be, shall execute and deliver to the Trustee a
supplemental indenture providing that the Holder of each Security then
Outstanding shall have the right thereafter, during the period such
Security shall be convertible as specified in Section 12.1, to convert
such Security only into the kind and amount of securities, cash and
other property receivable upon such consolidation, merger, conveyance,
sale, transfer or lease by a holder of the number of shares of Common
Stock of the Company into which such Security might have been converted
immediately prior to such consolidation, merger, conveyance, sale,
transfer or lease, assuming such holder of Common Stock of the Company
(i) is not a Person with which the Company consolidated or merged with
or into or which merged into or with the Company or to which such
conveyance, sale, transfer or lease was made, as the case may be
("Constituent Person"), or an Affiliate of a Constituent Person and (ii)
failed to exercise his rights of election, if any, as to the kind or
amount of securities, cash and other property receivable upon such
consolidation, merger, conveyance, sale, transfer or lease (provided
that if the kind or amount of securities, cash and other property
receivable upon such consolidation, merger, conveyance, sale, transfer,
or lease is not the same for each share of Common Stock of the Company
held immediately prior to such consolidation, merger, conveyance, sale,
transfer or lease by others than a Constituent Person or an Affiliate
thereof and in respect of which such rights of election shall not have
been exercised ("Non-electing Share"), then for the purpose of this
Section 12.11 the kind and amount of securities, cash and other property
receivable upon such consolidation, merger, conveyance, sale, transfer
or lease by the holders of each Non-electing Share shall be deemed to be
the kind and amount so receivable per share by a plurality of the
Non-electing Shares). Such supplemental indenture shall provide for
adjustments which, for events subsequent to the effective date of such
supplemental indenture, shall be as nearly equivalent as may be
practicable to the adjustments provided for in this Article. The above
provisions of this Section 12.11 shall similarly apply to successive
consolidations, mergers, conveyances, sales, transfers or leases. Notice
of the execution of such a supplemental indenture shall be given by the
Company to the Holder of each Security as provided in Section 1.6
promptly upon such execution.

     Neither the Trustee, any Paying Agent nor any Conversion Agent
shall be under any responsibility to determine the correctness of any
provisions contained in any such supplemental indenture relating either
to the kind or amount of shares of stock or other securities or property
or cash receivable by Holders of Securities upon the conversion of their
Securities after any such

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<PAGE>

consolidation, merger, conveyance, transfer, sale or lease or to any such
adjustment, but may accept as conclusive evidence of the correctness of any such
provisions, and shall be protected in relying upon, an Opinion of Counsel with
respect thereto, which the Company shall cause to be furnished to the Trustee
upon request.

SECTION 12.12.Responsibility of Trustee for Conversion Provisions.

     The Trustee, subject to the provisions of Section 6.1, and any
Conversion Agent shall not at any time be under any duty or
responsibility to any Holder of Securities to determine whether any
facts exist which may require any adjustment of the Conversion Rate, or
with respect to the nature or extent of any such adjustment when made,
or with respect to the method employed, or herein or in any supplemental
indenture provided to be employed, in making the same, or whether a
supplemental indenture need be entered into. Neither the Trustee,
subject to the provisions of Section 6.1, nor any Conversion Agent shall
be accountable with respect to the validity or value (or the kind or
amount) of any Common Stock, or of any other securities or property or
cash, which may at any time be issued or delivered upon the conversion
of any Security; and it or they do not make any representation with
respect thereto. Neither the Trustee, subject to the provisions of
Section 6.1, nor any Conversion Agent shall be responsible for any
failure of the Company to make or calculate any cash payment or to
issue, transfer or deliver any shares of Common Stock or share
certificates or other securities or property or cash upon the surrender
of any Security for the purpose of conversion; and the Trustee, subject
to the provisions of Section 6.1, and any Conversion Agent shall not be
responsible for any failure of the Company to comply with any of the
covenants of the Company contained in this Article.

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                                ARTICLE THIRTEEN

                           SUBORDINATION OF SECURITIES


SECTION 13.1.Securities Subordinate to Senior Debt.

     The Company covenants and agrees, and each Holder of a Security, by
his acceptance thereof, likewise covenants and agrees, that, to the
extent and in the manner hereinafter set forth in this Article (subject
to the provisions of Article Four), the indebtedness represented by the
Securities and the payment of the principal of (and premium, if any) and
interest on (including Liquidation Damages), and any payment of the
Repurchase Price with respect to, each and all of the Securities are
hereby expressly made subordinate and subject in right of payment to the
prior payment in full of all Senior Debt.

SECTION 13.2.Payment Over of Proceeds Upon Dissolution, Etc.

     In the event of (a) any insolvency or bankruptcy case or
proceeding, or any receivership, liquidation, reorganization or other
similar case or proceeding in connection therewith, relative to the
Company or to its creditors, as such, or to its assets, or (b) any
liquidation, dissolution or other winding up of the Company, whether
voluntary or involuntary and whether or not involving insolvency or
bankruptcy, or (c) any assignment for the benefit of creditors or any
other marshalling of assets and liabilities of the Company, then and in
any such event the holders of Senior Debt shall be entitled to receive
payment in full of all amounts due or to become due on or in respect of
all Senior Debt in cash before the Holders of the Securities are
entitled to receive any payment on account of principal of (or premium,
if any) or interest on the Securities or on account of the purchase,
redemption or other acquisition of Securities, and to that end the
holders of Senior Debt shall be entitled to receive, for application to
the payment thereof, any payment or distribution of any kind or
character, whether in cash, property or securities, which may be payable
or deliverable in respect of the Securities in any such case,
proceeding, dissolution, liquidation or other winding up or event.

     In the event that, notwithstanding the foregoing provisions of this
Section, the Trustee or the Holder of any Security shall have received
any payment or distribution of assets of the Company of any kind or
character, whether in cash, securities or other property, before all
Senior Debt is paid in full, and if such fact shall, at or prior to the
time of such payment or distribution, have been made known to the
Trustee or, as the case may be, such Holder, then and in such event such
payment or distribution shall be paid over or delivered forthwith to the
trustee in bankruptcy, receiver, liquidating trustee, custodian,
assignee, agent or other Person making payment or distribution of assets
of the Company for application to the payment of all Senior Debt

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remaining unpaid, to the extent necessary to pay all Senior Debt in full, after
giving effect to any concurrent payment or distribution to or for the holders of
Senior Debt.

     For purposes of this Article only, the words "cash, securities or
other property" shall not be deemed to include shares of stock of the
Company as reorganized or readjusted, or securities of the Company or
any other corporation provided for by a plan of reorganization or
readjustment which shares of stock are subordinated in right of payment
to all then outstanding Senior Debt to substantially the same extent as,
or to a greater extent than, the Securities are so subordinated as
provided in this Article. The consolidation of the Company with, or the
merger of the Company into, another Person or the liquidation or
dissolution of the Company following the conveyance or transfer of its
properties and assets substantially as an entirety to another Person
upon the terms and conditions set forth in Article Seven shall not be
deemed a dissolution, winding up, liquidation, reorganization,
assignment for the benefit of creditors or marshalling of assets and
liabilities of the Company for the purposes of this Section if the
Person formed by such consolidation or into which the Company is merged
or which acquires by conveyance or transfer such properties and assets
substantially as an entirety, as the case may be, shall, as a part of
such consolidation, merger, conveyance or transfer, comply with the
conditions set forth in Article Seven.

SECTION 13.3.No Payment When Senior Debt in Default.

     (a) In the event and during the continuation of any default in the
payment of principal of (or premium, if any) or interest on (including a
default under any redemption or repurchase obligation with respect to)
any Senior Debt beyond any applicable grace period with respect thereto
or in the event that any other event of default with respect to any
Senior Debt shall have occurred and be continuing which would then
permit the holders of such Senior Debt to declare such Senior Debt due
and payable prior to the date on which it would otherwise have become
due and payable, unless and until such event of default shall have been
cured or waived or shall have ceased to exist after written notice to
the Company and the Trustee by any holder of such Senior Debt, or (b) in
the event any judicial proceeding shall be pending with respect to any
such default in payment or event of default, then no payment shall be
made by the Company on account of principal of (or premium, if any) or
interest on the Securities or on account of the purchase, redemption or
other acquisition of Securities.

     In the event that, notwithstanding the foregoing, the Company shall
make any payment to the Trustee or the Holder of any Security prohibited
by the foregoing provisions of this Section, and if such fact shall, at
or prior to the time of such payment, have been made known to the
Trustee or, as the case may be, such Holder, then and in such event such
payment shall be paid over and delivered forthwith to the Company, in
the case of the Trustee, or the Trustee, in the case of such Holder.

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     The provisions of this Section shall not apply to any payment with
respect to which Section 13.2 would be applicable.

SECTION 13.4.Payment Permitted If No Default.

     Nothing contained in this Article or elsewhere in this Indenture or
in any of the Securities shall prevent (a) the Company, at any time
except during the pendency of any case, proceeding, dissolution,
liquidation or other winding up, assignment for the benefit of creditors
or other marshalling of assets and liabilities of the Company referred
to in Section 13.2 or under the conditions described in Section 13.3,
from making payments at any time of principal of (and premium, if any)
or interest on the Securities, or (b) the application by the Trustee of
any money deposited with it hereunder to the payment of or on account of
the principal of (and premium, if any) or interest on the Securities or
the retention of such payment by the Holders, if, at the time of such
application by the Trustee, it did not have knowledge that such payment
would have been prohibited by the provisions of this Article.

SECTION 13.5.Subrogation to Rights of Holders of Senior Debt.

     Subject to the payment in full of all Senior Debt, the Holders of
the Securities shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Debt pursuant to the
provisions of this Article to the rights of the holders of such Senior
Debt to receive payments and distributions of cash, property and
securities applicable to the Senior Debt until the principal of (and
premium, if any) and interest on the Securities shall be paid in full.
For purposes of such subrogation, no payments or distributions to the
holders of the Senior Debt of any cash, property or securities to which
the Holders of the Securities or the Trustee would be entitled except
for the provisions of this Article, and no payments over pursuant to the
provisions of this Article to the holders of Senior Debt by Holders of
the Securities or the Trustee, shall, as among the Company, its
creditors other than holders of Senior Debt and the Holders of the
Securities, be deemed to be a payment or distribution by the Company to
or on account of the Senior Debt.

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<PAGE>

SECTION 13.6.Provisions Solely to Define Relative Rights.

     The provisions of this Article are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities
on the one hand and the holders of Senior Debt on the other hand.
Nothing contained in this Article or elsewhere in this Indenture or in
the Securities is intended to or shall (a) impair, as among the Company,
its creditors other than holders of Senior Debt and the Holders of the
Securities, the obligation of the Company, which is absolute and
unconditional, to pay to the Holders of the Securities the principal of
(and premium, if any) and interest on the Securities as and when the
same shall become due and payable in accordance with their terms; or (b)
affect the relative rights against the Company of the Holders of the
Securities and creditors of the Company other than the holders of Senior
Debt; or (c) prevent the Trustee or the Holder of any Security from
exercising all remedies otherwise permitted by applicable law upon
default under this Indenture, subject to the rights, if any, under this
Article of the holders of Senior Debt to receive cash, property and
securities otherwise payable or deliverable to the Trustee or such
Holder.

SECTION 13.7.Trustee to Effectuate Subordination.

     Each holder of a Security by his acceptance thereof authorizes and
directs the Trustee on his behalf to take such action as may be
necessary or appropriate to effectuate the subordination provided in
this Article and appoints the Trustee his attorney-in-fact for any and
all such purposes.

SECTION 13.8.No Waiver of Subordination Provisions.

     No right of any present or future holder of any Senior Debt to
enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the
Company or by any act or failure to act, in good faith, by any such
holder of any Senior Debt, or by any non-compliance by the Company with
the terms, provisions and covenants of this Indenture, regardless of any
knowledge thereof any such holder may have or be otherwise charged with.

     Without in any way limiting the generality of the foregoing
paragraph, the holders of Senior Debt may, at any time and from time to
time, without the consent of or notice to the Trustee or the Holders of
the Securities, without incurring responsibility to the Holders of the
Securities and without impairing or releasing the subordination provided
in this Article or the obligations hereunder of the Holders of the
Securities to the holders of Senior Debt, do any one or more of the
following: (i) change the manner, place or terms of payment or extend
the time of payment of, or renew or alter, Senior Debt, or otherwise
amend or supplement in any manner Senior Debt or any instrument

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<PAGE>

evidencing the same or any agreement under which Senior Debt is outstanding;
(ii) sell, exchange, release or otherwise deal with any property pledged,
mortgaged or otherwise securing Senior Debt; (iii) release any Person liable in
any manner for the collection of Senior Debt; and (iv) exercise or refrain from
exercising any rights against the Company and any other Person.

SECTION 13.9.Notice to Trustee.

     The Company shall give prompt written notice to the Trustee of any
fact known to the Company which would prohibit the making of any payment
to or by the Trustee in respect of the Securities. Notwithstanding the
provisions of this Article or any other provision of this Indenture, the
Trustee shall not be charged with knowledge of the existence of any
facts which would prohibit the making of any payment to or by the
Trustee in respect of the Securities, unless and until the Trustee shall
have received written notice thereof from the Company or a holder of
Senior Debt or from any trustee therefor; and, prior to the receipt of
any such written notice, the Trustee, subject to the provisions of
Section 6.1, shall be entitled in all respects to assume that no such
facts exist; provided, however, that if the Trustee shall not have
received the notice provided for in this Section at least two Business
Days prior to the date upon which by the terms hereof any money may
become payable for any purpose (including, without limitation, the
payment of the principal of (and premium, if any) or interest on any
Security), then, anything herein contained to the contrary
notwithstanding, the Trustee shall have full power and authority to
receive such money and to apply the same to the purpose for which such
money was received and shall not be affected by any notice to the
contrary which may be received by it within two Business Days prior to
such date.

     Subject to the provisions of Section 6.1, the Trustee shall be
entitled to rely on the delivery to it of a written notice by a Person
representing himself to be a holder of Senior Debt (or a trustee
therefor) to establish that such notice has been given by a holder of
Senior Debt (or a trustee therefor). In the event that the Trustee
determines in good faith that further evidence is required with respect
to the right of any Person as a holder of Senior Debt to participate in
any payment or distribution pursuant to this Article, the Trustee may
request such Person to furnish evidence to the reasonable satisfaction
of the Trustee as to the amount of Senior Debt held by such Person, the
extent to which such Person is entitled to participate in such payment
or distribution and any other facts pertinent to the rights of such
Person under this Article, and if such evidence is not furnished, the
Trustee may defer any payment to such Person pending judicial
determination as to the right of such Person to receive such payment.

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SECTION 13.10.Reliance on Judicial Order or Certificate of Liquidating Agent.

     Upon any payment or distribution of assets of the Company referred
to in this Article, the Trustee, subject to the provisions of Section
6.1, and the Holders of the Securities shall be entitled to rely upon
any order or decree entered by any court of competent jurisdiction in
which such insolvency, bankruptcy, receivership, liquidation,
reorganization, dissolution, winding up or similar case or proceeding is
pending, or a certificate of the trustee in bankruptcy, receiver,
liquidating trustee, custodian, assignee for the benefit of creditors,
agent or other Person making such payment or distribution, delivered to
the Trustee or to the Holders of Securities, for the purpose of
ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Debt and other indebtedness of
the Company, the amount thereof or payable thereon, the amount or
amounts paid or distributed thereon and all other facts pertinent
thereto or to this Article.

SECTION 13.11.Trustee Not Fiduciary for Holders of Senior Debt.

     The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Debt and shall not be liable to any such holders if it
shall in good faith mistakenly pay over or distribute to Holders of
Securities or to the Company or to any other Person cash, property or
securities to which any holders of Senior Debt shall be entitled by
virtue of this Article or otherwise.

SECTION 13.12.Rights of Trustee as Holder of Senior Debt; Preservation of
                Trustee's Rights.

     The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article with respect to any Senior Debt which
may at any time be held by it, to the same extent as any other holder of
Senior Debt, and nothing in this Indenture shall deprive the Trustee of
any of its rights as such holder.

     Nothing in this Article shall apply to claims of, or payments to,
the Trustee under or pursuant to Section 6.7.

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<PAGE>

SECTION 13.13.Article Applicable to Paying Agents.

     In case at any time any Paying Agent other than the Trustee shall
have been appointed by the Company and be then acting hereunder, the
term "Trustee" as used in this Article shall in such case (unless the
context otherwise requires) be construed as extending to and including
such Paying Agent within its meaning as fully for all intents and
purposes as if such Paying Agent were named in this Article in addition
to or in place of the Trustee; provided, however, that Section 13.12
shall not apply to the Company or any Affiliate of the Company if it or
such Affiliate acts as Paying Agent.

SECTION 13.14.Certain Conversions and Repurchases Deemed Payment.

     For the purposes of this Article only, (1) the issuance and
delivery of junior securities upon conversion of Securities in
accordance with Article Twelve or upon the repurchase of Securities in
accordance with Article Fourteen shall not be deemed to constitute a
payment or distribution on account of the principal of or premium or
interest on Securities or on account of the purchase or other
acquisition of Securities, and (2) the payment, issuance or delivery of
cash, property or securities (other than junior securities) upon
conversion of a Security shall be deemed to constitute payment on
account of the principal of such Security. For the purposes of this
Section, the term "junior securities" means (a) shares of any stock of
any class of the Company and any cash, property or securities into which
the Securities are convertible pursuant to Article Twelve and (b)
securities of the Company which are subordinated in right of payment to
all Senior Debt which may be outstanding at the time of issuance or
delivery of such securities to substantially the same extent as, or to a
greater extent than, the Securities are so subordinated as provided in
this Article. Nothing contained in this Article or elsewhere in this
Indenture or in the Securities is intended to or shall impair, as among
the Company, its creditors other than holders of Senior Debt and the
Holders of the Securities, the right, which is absolute and
unconditional, of the Holder of any Security to convert such Security in
accordance with Article Twelve or to exchange such Security for Common
Stock in accordance with Article Fourteen if the Company elects to
satisfy the obligations under Article Fourteen by the delivery of Common
Stock.

SECTION 13.15.Rescission

     The provisions of this Article Thirteen shall continue to be
effective or be reinstated, as the case may be, if at any time any
payment in respect of any of the Senior Debt is rescinded or must
otherwise be returned by the holder thereof upon the insolvency,
bankruptcy or reorganization of the Company or otherwise, all as though
such payment had not been made.

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<PAGE>


                                ARTICLE FOURTEEN

                  REPURCHASE OF SECURITIES AT THE OPTION OF THE
                         HOLDER UPON A CHANGE IN CONTROL


SECTION 14.1.Right to Require Repurchase.

     In the event that a Change in Control (as hereinafter defined)
shall occur, then each Holder shall have the right, at the Holder's
option, but subject to the provisions of Section 14.2, to require the
Company to repurchase, and upon the exercise of such right the Company
shall repurchase, all of such Holder's Securities, or any portion of the
principal amount thereof that is equal to U.S.$1,000 or any integral
multiple of U.S.$1,000 in excess thereof (provided that no single
Security may be repurchased in part unless the portion of the principal
amount of such Security to be Outstanding after such repurchase is equal
to U.S.$1,000 or integral multiples of U.S.$1,000 in excess thereof), on
the date (the "Repurchase Date") that is 45 days after the date of the
Company Notice (as defined in Section 14.3) at a purchase price equal to
100% of the principal amount of the Securities to be repurchased plus
interest accrued to the Repurchase Date (the "Repurchase Price");
provided, however, that installments of interest on Securities whose
Stated Maturity is on or prior to the Repurchase Date shall be payable
to the Holders of such Securities, or one or more Predecessor
Securities, registered as such on the relevant Record Date according to
their terms and the provisions of Section 3.7. Such right to require the
repurchase of the Securities shall not continue after a discharge of the
Company from its obligations with respect to the Securities in
accordance with Article Four, unless a Change in Control shall have
occurred prior to such discharge. At the option of the Company, the
Repurchase Price may be paid in cash or, subject to the fulfillment by
the Company of the conditions set forth Section 14.2, by delivery of
shares of Common Stock having a fair market value equal to the
Repurchase Price as described in Section 14.2(a). Whenever in this
Indenture (including Sections 2.2, 3.1, 5.1(2) and 5.8) there is a
reference, in any context, to the principal of any Security as of any
time, such reference shall be deemed to include reference to the
Repurchase Price payable in respect of such Security to the extent that
such Repurchase Price is, was or would be so payable at such time, and
express mention of the Repurchase Price in any provision of this
Indenture shall not be construed as excluding the Repurchase Price in
those provisions of this Indenture when such express mention is not
made; provided, however, that for the purposes of Article Thirteen, such
reference shall be deemed to include reference to the Repurchase Price
only if the Repurchase Price is payable in cash.

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<PAGE>

SECTION 14.2.Conditions to the Company's Election to Pay the
             Repurchase Price in Common Stock.

     The Company may elect to pay the Repurchase Price by delivery of
shares of Common Stock pursuant to Section 14.1 if and only if the
following conditions have been satisfied:

     (a) The shares of Common Stock deliverable in payment of the
Repurchase Price shall have a fair market value as of the Repurchase
Date of not less than the Repurchase Price. For purposes of this Section
14.2, the fair market value of shares of common stock shall be
determined by the Company and shall be equal to 95% of the average of
the Closing Prices Per Share for the five consecutive Trading Days
ending on and including the third Trading Day immediately preceding the
Repurchase Date;

     (b) In the event any shares of Common Stock to be issued upon
repurchase of Securities hereunder require registration under any
Federal securities law before such shares may be freely transferrable
without being subject to any transfer restrictions under the Securities
Act upon repurchase, such registration shall have been completed and
shall have become effective prior to the Repurchase Date;

     (c) In the event any shares of Common Stock to be issued upon
repurchase of Securities hereunder require registration with or approval
of any governmental authority under any State law or any other Federal
law before such shares may be validly issued or delivered upon
repurchase, such registration shall have been completed, have become
effective and such approval shall have been obtained, in each case,
prior to the Repurchase Date;

     (d) The Shares of common stock deliverable in payment of the
Repurchase Price is or shall have been quoted on the Nasdaq National
Market or listed on a national securities exchange, in either case,
prior to the Repurchase Date; and

     (e) All shares of Common Stock deliverable in payment of the
Repurchase Price shall be issued out of the Company's authorized but
unissued Common Stock and, will upon issue, be duly and validly issued
and fully paid and non-assessable and free of any preemptive rights.

     If all of the conditions set forth in this Section 14.2 are not
satisfied in accordance with the terms thereof, the Repurchase Price
shall be paid by the Company only in cash.

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SECTION 14.3.Notices; Method of Exercising Repurchase Right, Etc.

     (a) Unless the Company shall have theretofore called for redemption
all of the Outstanding Securities, on or before the 30th day after the
occurrence of a Change of Control, the Company or, at the request and
expense of the Company on or before the 15th day after such occurrence,
the Trustee, shall give to all Holders of Securities, in the manner
provided in Section 1.6, notice (the "Company Notice") of the occurrence
of the Change of Control and of the repurchase right set forth herein
arising as a result thereof. The Company shall also deliver a copy of
such notice of a repurchase right to the Trustee.

     Each notice of a repurchase right shall:
state:

                        (1) the Repurchase Date,

                        (2) the date by which the repurchase right
                  must be exercised,

                        (3) the Repurchase Price, and whether the
                  Repurchase Price shall be paid by the Company in cash or by
                  delivery of shares of Common Stock,

                        (4) a description of the procedure which a
                  Holder must follow to exercise a repurchase right, and the
                  place or places where such Securities, maturing after the
                  Repurchase Date, are to be surrendered for payment of the
                  Repurchase Price and accrued interest, if any,

                         (5) that on the Repurchase Date the
                  Repurchase Price, and accrued interest, if any, will become
                  due and payable upon each such Security designated by the
                  Holder to be repurchased, and that interest thereon shall
                  cease to accrue on and after said date,

                         (6) the Conversion Rate then in effect, the
                  date on which the right to convert the principal amount of the
                  Securities to be repurchased will terminate and the place or
                  places where such Securities may be surrendered for
                  conversion, and

                         (7) the place or places that the certificate
                  required by Section 2.2 shall be delivered, and the form of
                  such certificate and the place or places that the Surrender
                  Certificate required by Section 14.3(j) shall be delivered.

     No failure of the Company to give the foregoing notices or defect
therein shall limit any Holder's right to exercise a repurchase right or
affect the validity of the proceedings for the repurchase of Securities.

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<PAGE>

     If any of the foregoing provisions or other provisions of this
Article Fourteen are inconsistent with applicable law, such law shall
govern.

     (b) To exercise a repurchase right, a Holder shall deliver to the
Trustee or any Paying Agent on or before the 30th day after the date of
the Company Notice (i) written notice of the Holder's exercise of such
right, which notice shall set forth the name of the Holder, the
principal amount of the Securities to be repurchased (and, if any
Security is to be repurchased in part, the serial number thereof, the
portion of the principal amount thereof to be repurchased and the name
of the Person in which the portion thereof to remain Outstanding after
such repurchase is to be registered) and a statement that an election to
exercise the repurchase right is being made thereby, and, in the event
that the Repurchase Price shall be paid in shares of Common Stock, the
name or names (with addresses) in which the certificate or certificates
for shares of Common Stock shall be issued, and (ii) the Securities with
respect to which the repurchase right is being exercised maturing after
the Repurchase Date. Such written notice shall be irrevocable, except
that the right of the Holder to convert the Securities with respect to
which the repurchase right is being exercised shall continue until the
close of business on the Repurchase Date.

     (c) In the event a repurchase right shall be exercised in
accordance with the terms hereof, the Company shall pay or cause to be
paid to the Trustee the Repurchase Price in cash or shares of Common
Stock, as provided above, for payment to the Holder on the Repurchase
Date or, if shares of Common Stock are to be paid, as promptly after the
Repurchase Date as practicable, together with accrued and unpaid
interest to the Repurchase Date payable with respect to the Securities
as to which the purchase right has been exercised; provided, however,
that installments of interest that mature on or prior to the Repurchase
Date shall be payable in cash, to the Holders of the Securities, or one
or more Predecessor Securities, registered as such at the close of
business on the relevant Regular Record Date.

     (d) If any Security (or portion thereof) surrendered for repurchase
shall not be so paid on the Repurchase Date, the principal amount of
such Security (or portion thereof, as the case may be) shall, until
paid, bear interest to the extent permitted by applicable law from the
Repurchase Date at the rate of 5% per annum, and each Security shall
remain convertible into Common Stock until the principal of such
Security (or portion thereof, as the case may be) shall have been paid
or duly provided for.

     (e) Any Security which is to be repurchased only in part shall be
surrendered to the Trustee (with, if the Company or the Trustee so
requires, due endorsement by, or a written instrument of transfer in
form satisfactory to the Company and the Trustee duly executed by, the
Holder thereof or his attorney duly authorized in writing), and the
Company shall execute, and the Trustee shall authenticate and make
available for delivery to the Holder of such Security without

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<PAGE>

service charge, a new Security or Securities, containing identical terms and
conditions, each in an authorized denomination in aggregate principal amount
equal to and in exchange for the unrepurchased portion of the principal of the
Security so surrendered.

     (f) Any issuance of shares of Common Stock in respect of the
Repurchase Price shall be deemed to have been effected immediately prior
to the close of business on the Repurchase Date and the Person or
Persons in whose name or names any certificate or certificates for
shares of Common Stock shall be issuable upon such repurchase shall be
deemed to have become on the Repurchase Date the holder or holders of
record of the shares represented thereby; provided, however, that any
surrender for repurchase on a date when the stock transfer books of the
Company shall be closed shall constitute the Person or Persons in whose
name or names the certificate or certificates for such shares are to be
issued as the record holder or holders thereof for all purposes at the
opening of business on the next succeeding day on which such stock
transfer books are open. No payment or adjustment shall be made for
dividends or distributions on any Common Stock issued upon repurchase of
any Security declared prior to the Repurchase Date.

     (g) No fractions of shares shall be issued upon repurchase of
Securities. If more than one Security shall be repurchased from the same
Holder and the Repurchase Price shall be payable in shares of Common
Stock, the number of full shares which shall be issuable upon such
repurchase shall be computed on the basis of the aggregate principal
amount of the Securities so repurchased. Instead of any fractional share
of Common Stock which would otherwise be issuable on the repurchase of
any Security or Securities, the Company will deliver to the applicable
Holder its check for the current market value of such fractional share.
The current market value of a fraction of a share is determined by
multiplying the current market price of a full share by the fraction,
and rounding the result to the nearest cent. For purposes of this
Section, the current market price of a share of Common Stock is the
Closing Price Per Share of the Common Stock on the Trading Day
immediately preceding the Repurchase Date.

     (h) Any issuance and delivery of certificates for shares of Common
Stock on repurchase of Securities shall be made without charge to the
Holder of Securities being repurchased for such certificates or for any
tax or duty in respect of the issuance or delivery of such certificates
or the securities represented thereby; provided, however, that the
Company shall not be required to pay any tax or duty which may be
payable in respect of (i) income of the Holder or (ii) any transfer
involved in the issuance or delivery of certificates for shares of
Common Stock in a name other than that of the Holder of the Securities
being repurchased, and no such issuance or delivery shall be made unless
and until the Person requesting such issuance or delivery has paid to
the Company the amount of any such tax or duty or has established, to
the satisfaction of the Company, that such tax or duty has been paid.

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<PAGE>

     (i) All shares of Common Stock delivered upon repurchase of
Restricted Securities shall bear restrictive legends substantially in
the form of the legends required to be set forth on the Restricted
Securities pursuant to Section 3.5 and shall be subject to the
restrictions on transfer provided in such legends. Neither the Trustee,
the Paying Agent nor any other agents maintained for the purpose of such
repurchase (as shall be set forth in the Company Notice) shall have any
responsibility for the inclusion or content of any such restrictive
legends on such Common Stock; provided, however, that the Trustee or any
agent maintained for the purpose of such repurchase shall have provided,
to the Company or to the Company's transfer agent for such Common Stock,
prior to or concurrently with a request to the Company to deliver such
Common Stock, written notice that the Securities delivered for
repurchase are Restricted Securities.

     (j) If shares of Common Stock to be delivered upon repurchase of a
Restricted Security are to be registered in a name other than that of
the beneficial owner of such Restricted Security, then such Holder must
deliver to the Trustee, the Paying Agent or any other agent maintained
for the purpose of such repurchase (as shall be set forth in the Company
Notice) a Surrender Certificate, dated the date of surrender of such
Restricted Security and signed by such beneficial owner, as to
compliance with the restrictions on transfer applicable to such
Restricted Security. Neither the Trustee nor any Paying Agent, Registrar
or Transfer Agent or other agents shall be required to register in a
name other than that of the beneficial owner shares of Common Stock
issued upon repurchase of any such Restricted Security not so
accompanied by a properly completed Surrender Certificate.

     (k) All Securities delivered for repurchase shall be delivered to
the Trustee, the Paying Agent or any other agents (as shall be set forth
in the Company Notice) to be canceled at the direction of the Trustee,
which shall dispose of the same as provided in Section 3.8.

SECTION 14.4.Certain Definitions.

     For purposes of this Article Fourteen,

     (a) the term "beneficial owner" shall be determined in accordance
with Rule 13d-3, as in effect on the date of the original execution of
this Indenture, promulgated by the Commission pursuant to the Exchange
Act;

     (b) a "Change in Control" shall be deemed to have occurred at the
time, after the original issuance of the Securities, of:

                                    (i) the acquisition by any person of
                                        beneficial ownership, directly or
                                        indirectly, through a purchase,
                                        merger or other acquisition transaction
                                        or series of transactions, of shares of
                                        capital stock of the Company entitling
                                        such person to

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<PAGE>

                                        exercise 50% or more of the total voting
                                        power of all shares of capital stock of
                                        the Company entitled to vote generally
                                        in the elections of directors (any
                                        shares of voting stock of which such
                                        person or group is the beneficial owner
                                        that are not then outstanding being
                                        deemed outstanding for purposes of
                                        calculating such percentage), other than
                                        any such acquisition by the Company, any
                                        Subsidiary of the Company or any
                                        employee benefit plan of the Company
                                        existing on the date of this Indenture;
                                        or

                                   (ii) any consolidation or merger of the
                                        Company with or into, any other person,
                                        any merger of another person with or
                                        into the Company, or any conveyance,
                                        sale, transfer or lease of all or
                                        substantially all of the assets of the
                                        Company to another person (other than
                                        (a) any such transaction (x) which does
                                        not result in any reclassification,
                                        conversion, exchange or cancellation of
                                        outstanding shares of Common Stock and
                                        (y) pursuant to which holders of Common
                                        Stock immediately prior to such
                                        transaction have the entitlement to
                                        exercise, directly or indirectly, 50% or
                                        more of the total voting power of all
                                        shares of capital stock entitled to vote
                                        generally in the election of directors
                                        of the continuing or surviving person
                                        immediately after such transaction and
                                        (b) any merger which is effected solely
                                        to change the jurisdiction of
                                        incorporation of the Company and results
                                        in a reclassification, conversion or
                                        exchange of outstanding shares of Common
                                        Stock into solely shares of common
                                        stock);

provided, however, that a Change in Control shall not be deemed to have occurred
if the Closing Price Per Share on any five Trading Days within the period of 10
consecutive Trading Days ending immediately after the later of the date of the
Change in Control or the date of the public announcement of the Change in
Control (in the case of a Change in Control under Clause (i) above) or the
period of 10 consecutive Trading Days ending immediately prior to the date of
the Change in Control (in the case of a Change in Control under Clause (ii)
above) shall equal or exceed 105% of the Conversion Price;

     (c) the term "Conversion Price" shall equal U.S.$1,000 divided by
the Conversion Rate; and

     (d) the term "person" shall include any syndicate or group which
would be deemed to be a "person" under Section 13(d)(3) of the Exchange
Act, as in effect on the date of the original execution of this
Indenture.

                                      179

<PAGE>


                                 ARTICLE FIFTEEN

                HOLDERS LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 15.1. Company to Furnish Trustee Names and Addresses of Holders.

     The Company will furnish or cause to be furnished to the Trustee:

                        (a) semi-annually, not more than 15 days after
                  the Regular Record Date, a list, in such form as the
                  Trustee may reasonably require, of the names and
                  addresses of the Holders of Securities as of such
                  Regular Record Date, and

                        (b) at such other times as the Trustee may
                  reasonably request in writing, within 30 days after
                  the receipt by the Company of any such request, a list
                  of similar form and content as of a date not more than
                  15 days prior to the time such list is furnished;

excluding from any such list names and addresses received by the Trustee in its
capacity as Security Registrar.

SECTION 15.2.Preservation of Information; Communications to Holders.

     The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most
recent list furnished to the Trustee as provided in Section 15.1 and the
names and addresses of Holders received by the Trustee in its capacity
as Security Registrar. The Trustee may destroy any list furnished to it
as provided in Section 15.1 upon receipt of a new list so furnished.

                              ---------------------

     This instrument may be executed in any number of counterparts, each
of which so executed shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

                                      180

<PAGE>


     IN WITNESS WHEREOF, the parties hereto have caused this Indenture
to be duly executed, and their respective corporate seals to be hereunto
affixed and attested, all as of the day and year first above written.

                                               BROADBAND TECHNOLOGIES, INC.


                                               By_______________________________
                                                 Name:
                                                 Title:

Attest:

- ------------------------------
Name:
Title:


                                               MARINE MIDLAND BANK, Trustee


                                               By______________________________
                                                 Name:
                                                 Title:



Attest:

- -------------------------------
Name:
Title:

                                      181

<PAGE>


STATE OF                  )
                          ) : ss.:
COUNTY OF                 )


     On the 22nd day of May, 1996, before me personally came
_______________________, to me known, who, being by me duly sworn, did
depose and say that he is ________________ of BroadBand Technologies,
Inc., one of the corporations described in and which executed the
foregoing instrument; that he knows the seal of said corporation; that
the seal affixed to said instrument is such corporate seal; that it was
so affixed by authority of the Board of Directors of said corporation;
and that he signed his name thereto by like authority.

                         ------------------------------
                                  Notary Public


STATE OF NEW YORK         )
                          ) : ss.:
COUNTY OF NEW YORK        )


     On the 22nd day of May, 1996, before me personally came
__________________________, to me known, who, being by me duly sworn,
did depose and say that he is ____________________ of _______________,
one of the corporations described in and which executed the foregoing
instrument; that he knows the seal of said corporation; that the seal
affixed to said instrument is such corporate seal; that it was so
affixed pursuant to the bylaws of said corporation; and that he signed
his name thereto by like authority.

                   ------------------------------------------
                                  Notary Public

                                      182

<PAGE>

                                                      ANNEX A--Form of
                                                        Regulation S Certificate

                            REGULATION S CERTIFICATE

             (For transfers pursuant to ss. 3.5(b)(i), (iii) and (v)
                                of the Indenture)


Marine Midland Bank,
  as Trustee
140 Broadway, 12th Floor
New York, New York 10005

                      Re: 5% Convertible Subordinated due May 15, 2001
                           of BroadBand Technologies, Inc. (the "Securities)

     Reference is made to the Indenture, dated as of May 22, 1996 (the
"Indenture"), from BroadBand Technologies, Inc. (the "Company") to
Marine Midland Bank, as Trustee. Terms used herein and defined in the
Indenture or in - Regulation S or Rule 144 under the U.S. Securities Act
of 1933 (the "Securities Act") are used herein as so defined.

     This certificate relates to U.S. $____________ principal amount of
Securities, which are evidenced by the following certificate(s) (the
"Specified Securities"):

                      CUSIP No(s). ___________________________

                      CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the "Undersigned")
hereby certifies that either (i) it is the sole beneficial owner of the
Specified Securities or (ii) it is acting on behalf of all the beneficial owners
of the Specified Securities and is duly authorized by them to do so. Such
beneficial owner or owners are referred to herein collectively as the "Owner".
If the Specified Securities are represented by a Global Security, they are held
through the Depositary or an Agent Member in the name of the Undersigned, as or
on behalf of the Owner. If the Specified Securities are not represented by a
Global Security, they are registered in the name of the Undersigned, as or on
behalf of the Owner.

     The Owner has requested that the Specified Securities be
transferred to a person (the "Transferee") who will take delivery in the
form of a Regulation S Security. In connection with such transfer, the
Owner hereby certifies that, unless such transfer is being effected
pursuant to an effective registration statement under the Securities
Act, it is being effected in accordance with Rule 904 or Rule 144 under
the Securities Act and with all applicable securities laws of the states
of

                                      A-1

<PAGE>

the United States and other jurisdictions. Accordingly, the Owner hereby further
certifies as follows:

     (1) Rule 904 Transfers. If the transfer is being effected in
accordance with Rule 904:

                        (A) the Owner is not a distributor of the
                  Securities, an affiliate of the Company or any such
                  distributor or a person acting on behalf of any of the
                  foregoing;

                        (B) the offer of the Specified Securities
                  was not made to a person in the United States;

                        (C) either:

                                      (i) at the time the buy order was
                                 originated, the Transferee was outside the
                                 United States or the Owner and any person
                                 acting on its behalf reasonably believed that
                                 the Transferee was outside the United States,
                                 or

                                      (ii) the transaction is being executed in,
                                 on or through the facilities of the Eurobond
                                 market, as regulated by the Association of
                                 International Bond Dealers, or another
                                 designated offshore securities market and
                                 neither the Owner nor any person acting on its
                                 behalf knows that the transaction has been
                                 prearranged with a buyer in the United States;

                        (D) no directed selling efforts have been made
                  in the United States by or on behalf of the Owner or
                  any affiliate thereof;

                        (E) if the Owner is a dealer in securities or
                  has received a selling concession, fee or other
                  remuneration in respect of the Specified Securities,
                  and the transfer is to occur during the Restricted
                  Period, then the requirements of Rule 904(c)(1) have
                  been satisfied; and

                        (F) the transaction is not part of a plan or
                  scheme to evade the registration requirements of the
                  Securities Act.

     (2) Rule 144 Transfers. If the transfer is being effected pursuant
to Rule 144:

                        (A) the transfer is occurring after a holding
                  period of at least two years (computed in accordance
                  with paragraph (d) of Rule 144) has elapsed, since the
                  Specified Securities were acquired from the Company or
                  from an affiliate (as such term is defined in Rule
                  144) of the Company, whichever is later, and is being
                  effected in accordance with the applicable

                                      A-2
<PAGE>

                  amount, manner of sale and notice requirements of paragraphs
                  (e), (f) and (h) of Rule 144; or

                        (B) the transfer is occurring after a holding
                  period of at least three years has elapsed since the
                  date Specified Securities were acquired from the
                  Company or from an affiliate (as such term is defined
                  in Rule 144) of the Company, whichever is later, and
                  the Owner is not, and during the preceding three
                  months has not been, an affiliate of the Company.

                                      A-3

<PAGE>


     This certificate and the statements contained herein are made for
your benefit and the benefit of the Company and the Initial Purchasers.



Dated: _________________________
       (Print the name of the Undersigned, as such term is defined in the second
       paragraph of this certificate.)




       By: __________________________________________________________________
           Name:
           Title:
       (If the Undersigned is a corporation, partnership or fiduciary, the title
       of the person signing on behalf of the Undersigned must be stated.)

                                      A-4

<PAGE>


                                                     ANNEX B--Form of Restricted
                                                        Securities Certificate






                        RESTRICTED SECURITIES CERTIFICATE

         (For transfers pursuant to ss. 3.5(b)(ii), (iii), (iv) and (v)
                                of the Indenture)



Marine Midland Bank,
  as Trustee
140 Broadway, 12th Floor
New York, New York 10005

                      Re: 5% Convertible Subordinated due May 15, 2001
                          of BroadBand Technologies, Inc. (the "Securities")

     Reference is made to the Indenture, dated as of May 22, 1996 (the
"Indenture"), from BroadBand Technologies, Inc. (the "Company") to
Marine Midland Bank, as Trustee. Terms used herein and defined in the
Indenture or in Regulation S or Rule 144 under the U.S. Securities Act
of 1933 (the "Securities Act") are used herein as so defined.

     This certificate relates to U.S. $_____________ principal amount of
Securities, which are evidenced by the following certificate(s) (the
"Specified Securities"):

                                    CUSIP No(s). ___________________________

                                    CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the "Undersigned")
hereby certifies that either (i) it is the sole beneficial owner of the
Specified Securities or (ii) it is acting on behalf of all the beneficial owners
of the Specified Securities and is duly authorized by them to do so. Such
beneficial owner or owners are referred to herein collectively as the "Owner".
If the Specified Securities are represented by a Global Security, they are held
through the Depositary or an Agent Member in the name of the Undersigned, as or
on behalf of the Owner. If the Specified Securities are not represented by a
Global Security, they are registered in the name of the Undersigned, as or on
behalf of the Owner.

     The Owner has requested that the Specified Securities be
transferred to a person (the "Transferee") who will take delivery in the
form of a Restricted Security. In connection with such


                                      B-1

<PAGE>

transfer,  the Owner  hereby  certifies  that,  unless  such  transfer  is being
effected  pursuant to an effective  registration  statement under the Securities
Act,  it is being  effected in  accordance  with Rule 144A or Rule 144 under the
Securities  Act and all applicable  securities  laws of the states of the United
States and other jurisdictions.  Accordingly, the Owner hereby further certifies
as:

                        (1) Rule 144A Transfers. If the transfer is
                  being effected in accordance with Rule 144A:

                        (A) the Specified Securities are being
                  transferred to a person that the Owner and any person
                  acting on its behalf reasonably believe is a
                  "qualified institutional buyer" within the meaning of
                  Rule 144A, acquiring for its own account or for the
                  account of a qualified institutional buyer; and

                        (B) the Owner and any person acting on its
                  behalf have taken reasonable steps to ensure that the
                  Transferee is aware that the Owner may be relying on Rule 144A
                  in connection with the transfer; and

                        (2) Rule 144 Transfers. If the transfer is
                  being effected pursuant to Rule 144:

                        (A) the transfer is occurring after a holding
                  period of at least two years (computed in accordance
                  with paragraph (d) of Rule 144) has elapsed, since the
                  Specified Securities were acquired from the Company or
                  from an affiliate (as such term is defined in Rule
                  144) of the Company, whichever is later, and is being
                  effected in accordance with the applicable amount,
                  manner of sale and notice requirements of paragraphs
                  (e), (f) and (h) of Rule 144; or

                       (B) the transfer is occurring after a holding
                  period of at least three years has elapsed since the
                  date Specified Securities were acquired from the
                  Company or from an affiliate (as such term is defined
                  in Rule 144) of the Company, whichever is later, and
                  the Owner is not, and during the preceding three
                  months has not been, an affiliate of the Company.

                                      B-2
<PAGE>

     This certificate and the statements contained herein are made for
your benefit and the benefit of the Company and the Initial Purchasers.



Dated: _____________________________________________
       (Print the name of the Undersigned, as such term is defined in the second
       paragraph of this certificate.)




       By:
           Name:
           Title:

       (If the Undersigned is a corporation, partnership or fiduciary, the title
       of the person signing on behalf of the Undersigned must be stated.)

                                      B-3

<PAGE>

                                                   ANNEX C--Form of Unrestricted
                                                       Securities Certificate





                       UNRESTRICTED SECURITIES CERTIFICATE

         (For removal of Securities Act Legends pursuant to ss. 3.5(c))



Marine Midland Bank,
  as Trustee
140 Broadway, 12th Floor
New York, New York 10005

                      Re: 5% Convertible Subordinated due May 15, 2001
                            of BroadBand Technologies, Inc. (the "Securities")

     Reference is made to the Indenture, dated as of May 22, 1996 (the
"Indenture"), from BroadBand Technologies, Inc. (the "Company") to
Marine Midland Bank, as Trustee. Terms used herein and defined in the
Indenture or in Regulation S or Rule 144 under the U.S. Securities Act
of 1933 (the "Securities Act") are used herein as so defined.

     This certificate relates to U.S. $_____________ principal amount of
Securities, which are evidenced by the following certificate(s) (the
"Specified Securities"):

                                    CUSIP No(s). ___________________________

                                    CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the "Undersigned")
hereby certifies that either (i) it is the sole beneficial owner of the
Specified Securities or (ii) it is acting on behalf of all the beneficial owners
of the Specified Securities and is duly authorized by them to do so. Such
beneficial owner or owners are referred to herein collectively as the "Owner".
If the Specified Securities are represented by a Global Security, they are held
through the Depositary or an Agent Member in the name of the Undersigned, as or
on behalf of the Owner. If the Specified Securities are not represented by a
Global Security, they are registered in the name of the Undersigned, as or on
behalf of the Owner.

     The Owner has requested that the Specified Securities be exchanged
for Securities bearing no Securities Act Legend pursuant to Section
3.5(c) of the Indenture. In connection with such exchange, the Owner
hereby certifies that the exchange is occurring after a holding period
of at least

                                      C-1

<PAGE>

three years has elapsed since the date Specified Securities were acquired from
the Company or from an affiliate (as such term is defined in Rule 144) of the
Company, whichever is later, and the Owner is not, and during the preceding
three months has not been, an affiliate of the Company. The Owner also
acknowledges that any future transfers of the Specified Securities must comply
with all applicable securities laws of the states of the United States and other
jurisdictions.

     This certificate and the statements contained herein are made for
your benefit and the benefit of the Company and the Initial Purchasers.



Dated: ____________________________________________
       (Print the name of the Undersigned, as such term is defined in the second
       paragraph of this Certificate.)




       By:
           Name:
           Title:

       (If the Undersigned is a corporation, partnership or fiduciary, the title
       of the person signing on behalf of the Undersigned must be stated.)

C-2

<PAGE>

                                                             ANNEX D--Form of
                                                           Surrender Certificate

     In connection with the certification contemplated by Section 12.2
or 14.3(j) relating to compliance with certain restrictions relating to
transfers of Restricted Securities, such certification shall be provided
substantially in the form of the following certificate, with only such
changes thereto as shall be approved by the Company and Goldman Sachs
International:




                                  "CERTIFICATE

                          BROADBAND TECHNOLOGIES, INC.

                      5% CONVERTIBLE NOTES DUE MAY 15, 2001

     This is to certify that as of the date hereof with respect to
U.S.$________ principal amount (as defined in the Indenture) of the
above-captioned securities surrendered on the date hereof (the
"Surrendered Securities") for registration of transfer, or for
conversion or repurchase where the securities issuable upon such
conversion or repurchase are to be registered in a name other than that
of the undersigned Holder (each such transaction being a "transfer"),
the undersigned Holder (as defined in the Indenture) certifies that the
transfer of Surrendered Securities associated with such transfer
complies with the restrictive legend set forth on the face of the
Surrendered Securities for the reason checked below:

_______    The transfer of the Surrendered Securities complies with Rule 144
           under the United States Securities Act of 1933, as amended (the
           "Securities Act"); or

_______    The transfer of the Surrendered Securities complies with Rule 144A
           under the Securities Act; or

_______    The transfer of the Surrendered Securities complies with Rule 904
           under the Securities Act; or

_______    The transfer of the Surrendered  Securities has been made to an
           institution that is an "accredited  investor"  within the meaning of
           Rule 501(a)(1),  (2), (3) or (7) under the Securities Act in a
           transaction exempt from the registration requirements of the
           Securities Act.

                                [Name of Holder]


                              --------------------

Dated:  ____________, ____*"
        *       To be dated the date
                of surrender.

                                      D-1


<PAGE>







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