TII INDUSTRIES INC
S-3, 1998-02-27
SWITCHGEAR & SWITCHBOARD APPARATUS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

                              TII INDUSTRIES, INC.
             (Exact name of registrant as specified in its charter)

          Delaware                                               66-0328885
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)



                               1385 Akron Street,
                               Copiague, NY 11726
                                 (516) 789-5000
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)


                           Timothy J. Roach, President
                              TII Industries, Inc.
                                1385 Akron Street
                               Copiague, NY 11726
                                 (516) 789-5000
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)


                                    Copy to:
                             Richard A. Rubin, Esq.
                       Parker Chapin Flattau & Klimpl, LLP
                           1211 Avenue of the Americas
                            New York, New York 10036
                                 (212) 704-6130


               Approximate date of commencement of proposed sale to public: From
time to time after the effective date of this Registration Statement.



<PAGE>



               If the only  securities  being  registered on this Form are being
offered pursuant to dividend or interest  reinvestment  plans,  please check the
following box. [_]

               If any of the securities  being registered on this Form are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933,  other than  securities  offered only in connection with
dividend or interest reinvestment plans, check the following box: [X]

               If this Form is filed to register  additional  securities  for an
offering  pursuant to Rule 462(b)  under the  Securities  Act,  please check the
following box and list the Securities Act  registration  statement number of the
earlier effective registration statement for the same offering. [_]

               If this Form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. [_]

               If delivery of the  prospectus is expected to be made pursuant to
Rule 434, please check the following box. [_]


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



                         CALCULATION OF REGISTRATION FEE
- --------------------------------------------------------------------------------
                                     PROPOSED       PROPOSED
TITLE OF                             MAXIMUM        MAXIMUM
EACH CLASS          AMOUNT           OFFERING       AGGREGATE       AMOUNT OF
OF SECURITIES       TO BE            PRICE PER      OFFERING        REGISTRATION
TO BE REGISTERED    REGISTERED(1)    SHARE          PRICE           FEE
- --------------------------------------------------------------------------------
Common Stock,
$.01 par value      60,000           $  6.5625     $ 393,750        $   116.16
- --------------------------------------------------------------------------------

(1)  Pursuant  to Rule  416(b),  there is also  covered  hereby  all  additional
     securities resulting from anti-dilution adjustments prior to the completion
     of the distribution of such registered securities.


         THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS  EFFECTIVE  DATE UNTIL THE  REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION
STATEMENT SHALL  THEREAFTER  BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE  SECURITIES  ACT OF 1933 OR UNTIL THE  REGISTRATION  STATEMENT  SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.




<PAGE>



PROSPECTUS
                                  60,000 Shares

                              TII INDUSTRIES, INC.

                                  Common Stock

               This Prospectus relates to 60,000 shares (the "Shares") of Common
Stock, $.01 par value per share ("Common Stock"), of TII Industries, Inc. ("TII"
or the "Company") which may be offered and sold from time to time by the Selling
Stockholders  named  herein.  The  Shares  may be issued  upon the  exercise  of
Warrants which were originally issued in September 1993 pursuant to an agreement
between  the  Company  and   Ladenburg,   Thalmann  &  Co.  Inc.,  a  registered
broker-dealer, for the provision of financial consulting services to the Company
and are  exercisable  until  August 31,  1998 (the  "Warrants").  Certain of the
Warrants were  subsequently  transferred by that firm to the individual  Selling
Stockholders, who were employees of that firm. See "Selling Stockholders."

               The  Shares  may be  offered  for sale  from  time to time by the
Selling  Stockholders,  or their successors in interest, in the over-the-counter
market,  in privately  negotiated  transactions  or  otherwise at market  prices
prevailing  at the time of sale,  at prices  related to such  prevailing  market
prices or at negotiated  prices.  The Shares may be sold directly by the Selling
Stockholders or through  brokers or dealers.  In connection with any such sales,
Selling  Stockholders and brokers or dealers  participating in such sales may be
deemed  "underwriters"  within the  meaning of the  Securities  Act of 1933,  as
amended (the "Securities  Act"). See "Plan of Distribution."  The Shares covered
by this  Prospectus  may also be sold  under  Rule  144  promulgated  under  the
Securities Act, including  paragraph (k) thereof ("Rule 144"),  instead of under
this Prospectus, to the extent Rule 144 becomes available for such sale.

               The Company will not receive any of the proceeds from the sale of
the Shares by the Selling  Stockholders.  However, if the Warrants are exercised
in full, the Company will receive an aggregate of $393,750, which it will use as
working  capital.  The Company  will bear all  expenses in  connection  with the
filing of the  Registration  Statement  of which this  Prospectus  forms a part,
except that the Selling  Stockholders  will pay all  discounts  and  commissions
payable to broker-dealers in connection with their sale of the Shares.

               See  "Risk  Factors"  beginning  on  page 4 for a  discussion  of
certain factors that should be considered by prospective investors.

               The Common  Stock of the Company is included on The Nasdaq  Stock
Market's  National  Market  System  ("Nasdaq/NMS")  under the  symbol  TIII.  On
February  26,  1998,  the closing  sales price per share of the Common  Stock on
Nasdaq/NMS was $4.625.

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

    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
       AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
         THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
             COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
                PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
                               A CRIMINAL OFFENSE.
                             ----------------------

                 The date of this Prospectus is March ___, 1998



<PAGE>



                              AVAILABLE INFORMATION

               The Company is subject to the  informational  requirements of the
Securities Exchange Act of 1934 (the "Exchange Act") and in accordance therewith
files reports,  proxy  statements and other  information with the Securities and
Exchange Commission (the "Commission"). Such reports, proxy statements and other
information  filed by the  Company  can be  inspected  and  copied at the public
reference facilities maintained by the Commission at Room 1024, Judiciary Plaza,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the Commission's Regional
Offices  located at 7 World Trade Center,  Suite 1300,  New York, New York 10048
and Citicorp  Center,  500 West Madison Street,  Suite 1400,  Chicago,  Illinois
60661-2511.  Copies of such  material can also be obtained at  prescribed  rates
from the Public Reference Section of the Commission,  Judiciary Plaza, 450 Fifth
Street,  N.W.,  Washington,  D.C.  20549.  The  Commission  maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other information  electronically filed through the Commission's Electronic Data
Gathering,  Analysis and Retrieval system ("EDGAR").  The Common Stock is traded
on The Nasdaq National Market and such reports and other information can also be
inspected  at the offices of the National  Association  of  Securities  Dealers,
Inc., 1735 K Street, N.W., Washington, D.C. 20006.

               This Prospectus does not contain all the information set forth in
the Registration  Statement (No.  333-________ ) on Form S-3 (the  "Registration
Statement") of which this Prospectus forms a part,  including  exhibits relating
thereto, which has been filed with the Commission in Washington, D.C. Statements
contained  in this  Prospectus  as to the  contents of any contract or any other
document  referred  to  are  not  necessarily  complete,  and in  each  instance
reference  is made to the copy of such  contract or other  document  filed as an
exhibit to the  Registration  Statement,  each such statement being qualified in
all respects by such  reference.  Copies of the  Registration  Statement and the
exhibits  thereto may be  obtained,  upon payment of the fee  prescribed  by the
Commission,  or may be examined,  without charge, at the principal office of the
Commission.

                      INFORMATION INCORPORATED BY REFERENCE

               The following documents, filed by the Company with the Commission
(File No.  1-8048)  pursuant to the  Exchange  Act, are  incorporated  herein by
reference:  (i) the  Company's  Annual  Report on Form 10-K for its fiscal  year
ended June 27, 1997; (ii) the Company's  Quarterly  Reports on Form 10-Q for the
fiscal  quarters  ended  September  26, 1997 and December  26,  1997;  (iii) the
Company's  Current  Reports on Form 8-K dated (dates of earliest event reported)
July 29, 1997, January 6, 1998 and January 26, 1998; and (iv) the description of
the Common Stock contained in the Company's  Registration  Statement on Form 8-A
filed with the Commission on November 3, 1980 under the Exchange Act,  including
any  amendment or report  filed by the Company for the purpose of updating  such
description.  Each document filed by the Company  subsequent to the date of this
Prospectus  pursuant to Sections  13(a),  13(c), 14 or 15(d) of the Exchange Act
prior to the  termination of this offering shall be deemed to be incorporated by
reference  into this  Prospectus and to be a part hereof from the date of filing
such document.  Any statement contained in a document  incorporated or deemed to
be incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement  contained herein
or in any other  subsequently  filed  document  which  also is  incorporated  by
reference  herein  modifies or  supersedes  such  statement.  Any  statement  so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.

               THE  COMPANY  WILL  PROVIDE,   WITHOUT  CHARGE,  TO  EACH  PERSON
(INCLUDING ANY BENEFICIAL OWNER) TO WHOM A COPY OF THIS PROSPECTUS IS DELIVERED,
UPON THE  WRITTEN OR ORAL  REQUEST OF ANY SUCH  PERSON,  A COPY OF ANY  DOCUMENT
INCORPORATED  BY REFERENCE IN THIS  PROSPECTUS  (OTHER THAN EXHIBITS UNLESS SUCH
EXHIBITS ARE EXPRESSLY  INCORPORATED BY REFERENCE IN SUCH  DOCUMENTS).  REQUESTS
SHOULD BE DIRECTED TO TII  INDUSTRIES,  INC., 1385 AKRON STREET,  COPIAGUE,  NEW
YORK 11726, (516) 789-5000, ATTENTION: PAUL G. SEBETIC, VICE PRESIDENT-FINANCE.

                                       -2-

<PAGE>



               Unless the  context  otherwise  requires,  the terms "TII" or the
"Company" refer to TII Industries,  Inc. and its subsidiaries.  In evaluating an
investment in the Company,  prospective  investors  should  consider the factors
discussed under the caption "Risk Factors" in addition to the other  information
included  herein and in the  information  incorporated  herein by reference (see
"Information  Incorporated by Reference," above). Certain statements included in
this  Prospectus  (and  the  information   incorporated   herein  by  reference)
concerning future results, future performance, intentions, objectives, plans and
expectations  are  forward-looking  statements  that are  subject to a number of
known and unknown risks and  uncertainties  that may cause the Company's  actual
results and  performance to be materially  different  from those  anticipated or
discussed herein. Certain factors which may cause such differences are discussed
in cautionary statements under the caption "Risk Factors" in this Prospectus.

                                   The Company

               TII  designs,   manufactures   and  markets   overvoltage   surge
protectors,  network interface devices ("NIDs"),  station  electronics and fiber
optic  products for use in the  communications  industry.  The Company sells its
products to telephone operating companies  ("telcos"),  including to four of the
five  Regional  Bell  Operating  Companies  ("RBOCs")  and  most  of  the  1,300
independent telcos, original equipment manufacturers ("OEMs"),  cable television
("CATV") providers and competitive access providers of communications services.

               TII has been a leading supplier of subscriber station overvoltage
surge protectors to U.S. telcos for over 25 years. The Company believes that its
proprietary   overvoltage   surge  protectors  offer  superior,   cost-effective
performance features and characteristics,  including high reliability, long life
cycles  and  advanced  protection  against  adverse  environmental   conditions.
Overvoltage  surge  protectors are mandated in the United States by the National
Electric Code ("NEC") to be installed on subscriber  telephone  lines to prevent
injury to users and damage to their  equipment due to surges caused by lightning
and other hazardous overvoltages.

               The  Company  also  markets a complete  line of NIDs  tailored to
customer  specifications.  NIDs  house  the  Federal  Communications  Commission
mandated  demarcation point between telco-owned and  subscriber-owned  property.
NIDs typically also enclose  overvoltage  surge  protectors and various  station
electronic  products,  which, among other things, allow a telco to remotely test
the integrity of its lines, thereby minimizing costly maintenance dispatches. To
address the demand for voice,  high-speed data and  interactive  video services,
telcos and other  communications  providers are  expanding  and upgrading  their
networks  to  accommodate  the higher  bandwidth  necessary  to  transmit  these
services.  To meet its  customers'  needs,  TII has  introduced a broadband  NID
product line  specifically  designed to house the telcos'  technology of choice,
whether traditional twisted pair lines or high-bandwidth  coaxial cable or fiber
optic lines.

               As an integral part of the Company's  broadband NID product line,
the Company recently developed a high-performance  patented coaxial  overvoltage
surge protector to safeguard  coaxial cable lines.  While providing  overvoltage
surge protection,  the Company's in-line coaxial  overvoltage surge protector is
virtually transparent to the network,  permitting  high-bandwidth  signals to be
transmitted without adversely affecting the signal. The Company also markets its
coaxial  overvoltage surge protector to CATV providers of interactive  services.
Proposed  revisions to the NEC,  currently  anticipated  to take effect in 1999,
would  require  overvoltage  surge  protection on all new or existing CATV lines
intended to carry voice, data or interactive video services.

               The  Company  also  produces  and  sells  a line of  fiber  optic
products,  including custom-designed  enclosures and LIGHTRAX(R), a unique fiber
optic  management  system used to route sensitive fiber optic cable throughout a
facility. These products are used to connect the telcos' local and long distance
networks  to their  central  offices,  as well as to  route  fiber  optic  lines
throughout subscriber locations.

               The Company's principal executive office is located at 1385 Akron
Street, Copiague, New York 11726 and its telephone number is (516) 789-5000.


                                       -3-

<PAGE>



                                  RISK FACTORS

               In evaluating the Company and its business, prospective investors
should  carefully  consider  the  following  risk  factors in  addition to other
information  included  in  this  Prospectus  and  reports  incorporated  in this
Prospectus by reference.

RECENT NET LOSSES

               The Company reported net losses of $2,325,000, $188,000, $160,000
and $2,492,000 for the quarters ended March 28, 1997,  June 27, 1997,  September
26, 1997 and December 26, 1997, respectively.

               During the third quarter of fiscal 1997 (ended March 28, 1997), a
joint venture with which the Company had entered into a strategic arrangement to
develop and manufacture  advanced  overvoltage  surge  protectors was dissolved.
Following  such  dissolution,  the  Company  increased  its  allowance  for  the
inventory  which was produced  for the joint  venture.  In addition,  during the
third quarter of fiscal 1997, the Company implemented certain measures to reduce
costs and enhance profitability,  including (i) reducing personnel,  (ii) moving
certain  production  processes  to the  Company's  lower  cost  facility  in the
Dominican Republic,  (iii) outsourcing  certain  manufacturing  processes,  (iv)
realigning the Company's sales and marketing force and (v) discontinuing certain
lower  margin  products.  These  actions  resulted in  non-recurring  charges of
$3,000,000.

               In  September  1997  and  July  1997,  the  Company  was  awarded
contracts with one RBOC and one  independent  telco,  respectively,  for various
products  within its newly  developed  broadband  NIDs product line.  During the
fourth quarter of fiscal 1997 (ended June 27, 1997) and the first half of fiscal
1998 (ended December 26, 1998), the Company experienced  significant losses as a
result of  additional  manufacturing  costs  incurred  in  gearing up toward the
accelerated  production  of its new  broadband NID product line under one of the
new contracts.  The losses were compounded in the second quarter of fiscal 1998,
principally  by  production  disruptions,  as the  Company  sought  to meet  its
customer's requested delivery schedules. These disruptions were primarily caused
by  (i)  the  failure  of  certain  vendors  to  meet  the  Company's   delivery
requirements  for  required  molds and  inventory  components,  (ii)  production
breakdowns which produced significant delays and yield losses during the initial
production  process and (iii)  delays in  completing  the  training of permanent
employees for both the Company's Puerto Rico and Dominican Republic  facilities,
as well as temporary manufacturing employees hired at its Puerto Rico facilities
to meet the accelerated production schedule. The Company has initially based its
new Chief Operating  Officer at its Puerto Rico facilities in order to assist in
improving the manufacturing  process. With modifications  resulting in some, but
minimal,  disruption,  the  Company  expects  that  it  will  be able to gear up
effectively  for sales of products in its new  broadband  NID product line under
the second  contract,  production  under which is  expected to begin  during the
latter part of the third or fourth quarter of fiscal 1998.  There can,  however,
be no assurances that the Company will become profitable.

RISK OF LOSS OF NEW CONTRACTS

               To meet the delivery commitments  established in the two recently
awarded  contracts,  the  Company  has  been  expanding  production  for  volume
deliveries  of these  products  which has begun in the third  quarter  of fiscal
1998. The broadband NID product line has required significant,  and will require
some additional,  capital investment in production and test equipment, molds and
fixtures, as well as the maintenance of sufficient inventory levels, for much of
which the Company is dependent upon timely  performance by outside vendors.  The
Company must also  complete  leasehold  improvements  to its  facilities  in the
Dominican Republic and may be required to train additional personnel to meet the
requirements of its new contracts and to increase  production of broadband NIDs,
including  under the new  contracts.  While the Company  experienced  production
disruptions in the second quarter of fiscal 1998 under one of the new contracts,
it has been able to retain  this  contract  and is  currently  meeting  shipment
schedules required under both contracts. Should similar disruptions occur in the
future, the Company could lose these contracts.  Such loss could have a material
adverse effect on the Company.
See "--Recent Net Losses."

                                       -4-

<PAGE>




POTENTIAL NEED FOR ADDITIONAL FINANCING

               The  Company's   Revolving  Credit  Agreement,   under  which  it
presently may borrow up to $1,500,000 (the  "Revolving  Credit  Agreement"),  is
scheduled to expire on December 31,  1998.  The Company is currently  seeking to
replace this  revolving  credit  facility with other bank  financing  that would
expand and extend the Company's borrowing capacity.  Should the Company continue
to  experience  losses  and not be  able  to  obtain  replacement  financing  at
sufficient  levels,  it may be required to obtain  financing from other sources,
such as borrowings from  institutional  lenders or the sale and issuance of debt
or equity securities from private sources or in the public market. The Company's
ability to obtain such financing will be affected by such factors as its results
of  operations,  financial  condition  and business  prospects.  There can be no
assurance  that the Company  will be able to obtain such  financing  or, if such
financing is obtained, what the terms thereof will be.

DEPENDENCE UPON KEY CUSTOMERS; LACK OF LONG TERM COMMITMENTS

               Direct  sales  to  the  Company's  RBOC  customers,  their  known
distributors  and OEMs known to use the  Company's  products  as  components  in
equipment  manufactured for RBOCs have historically  accounted for a substantial
majority  of the  Company's  net sales.  The U.S.  telephone  industry is highly
consolidated  with the five RBOCs and GTE Corporation  servicing over 85% of all
subscriber  lines.  In most  instances,  the Company's sales are made under open
purchase orders received from time to time from its customers pursuant to master
supply contracts. Certain of such contracts permit the customer to terminate the
contract due to the  availability  of more advanced  technology or the Company's
inability to deliver a product that meets the specifications on time and certain
supply  contracts  provide that the customer may  terminate  the contract at any
time  upon  notice.  While  four of the five  RBOCs  specify  one or more of the
Company's  overvoltage  surge  protectors  for use at their  subscriber  station
locations,  the  loss  of one or  more  RBOCs  as  purchasers  of the  Company's
products,  or  a  substantial  diminution  in  the  orders  received  from  such
purchasers, could have a material adverse effect on the Company.

MAINTENANCE OF INVENTORY LEVELS TO RESPOND TO CHANGING CUSTOMER NEEDS

               The Company maintains  significant  levels of inventories to meet
the  rapid  delivery   requirements  of  its  customers.   The  introduction  or
announcement  by the  Company  or its  competitors  of  products  embodying  new
technologies,  improvements  on  existing  technologies  or changes in  industry
standards or customer  requirements could render the Company's existing products
obsolete or unmarketable. Most of the contracts under which the Company supplies
its products  enable the customer to reduce or cease purchases with little or no
advance  notice.  There can be no  assurance  that one or more of the  Company's
customers  will not limit,  defer or cease  purchases of the Company's  products
which could also  result in  inventory  write-downs  or  allowances,  charges to
earnings  or  otherwise  have a  material  adverse  effect on the  Company.  See
"--Recent Net Losses."

NEW PRODUCT INTRODUCTION AND EVOLVING INDUSTRY STANDARDS

               The  market  for  the  Company's  products  is  characterized  by
changing   technology,   evolving  industry   standards,   changes  in  customer
requirements and product  introductions and enhancements.  The Company's success
will depend, in large measure,  upon its ability to rapidly identify and develop
new,  competitively  priced  products  to keep pace with  continuing  changes in
technology and customer  preferences.  Although the Company continually seeks to
improve its existing  products and develop new products and enhancements to meet
the needs of its customers and the  marketplace,  there can be no assurance that
the Company  will be able to respond  timely to changing  industry  and customer
needs.  The Company  believes  that its future  success will also depend in part
upon its  ability to enhance  its  current  product  offerings  and  develop new
products that address its customers' needs for additional  functionality and new
technologies.  Product  development  cycles  can be lengthy  and are  subject to
changing  requirements  and  unforeseen  factors which can result in delays.  In
addition,  new products or  features,  when first  released by the Company,  may
contain defects that, despite testing by the Company, are

                                       -5-

<PAGE>



discovered  only  after a  product  has been  installed  and used by  customers.
Delays,  undetected  defects or product  recalls  could have a material  adverse
effect on the Company.

COSTS ASSOCIATED WITH PRODUCTION OF NEW PRODUCTS

               When the Company begins commercial production of new products, it
typically incurs increased costs. These increased costs result from, among other
things, the hiring of temporary personnel, the outsourcing of certain production
processes,  initial  purchases of  materials  in smaller than usual  quantities,
lower initial  manufacturing yields and additional freight and expediting costs.
The failure of the Company to  adequately  control  these  increased  production
costs could have a material  adverse  effect on the Company.  See  "--Recent Net
Losses."

TECHNOLOGICAL CHANGE IN OVERVOLTAGE SURGE PROTECTION

               The Company's  overvoltage surge protectors are based principally
on gas tube technology. Solid state surge protectors have been developed for use
within the telecommunications industry as a competitive technology to gas tubes.
While solid state overvoltage surge protectors are faster at reacting to surges,
gas tube  overvoltage  surge  protectors  have  generally  remained  the station
overvoltage surge protection  technology of choice by most telcos because of the
gas tube's ability to repeatedly  withstand  significantly  higher energy surges
than solid  state  overvoltage  surge  protectors.  However,  as  communications
equipment  becomes  more  complex,  the speed of the  protector in reacting to a
surge  may  be  perceived  to  be  more  critical   than  its  energy   handling
capabilities.  Further,  solid state  protectors  can be combined with gas tubes
into a hybrid overvoltage surge protector module. While generally more expensive
and complex  than gas tube surge  protectors,  the hybrid  surge  protector  can
provide the speed of a solid state protector with the energy handling capability
of a gas tube overvoltage  surge  protector.  Although the Company has developed
solid state and hybrid surge protectors, the development by competitors of solid
state overvoltage surge protectors with increased energy handling  capabilities,
or the development of lower cost, more reliable hybrid surge  protectors,  could
have a material adverse effect on the Company.

COMPETITION

               The Company is subject to significant competition with respect to
all of its products. The Company's gas tube overvoltage surge protectors compete
with other companies' gas tube  overvoltage  surge  protectors,  as well as with
solid state and hybrid  overvoltage surge protectors.  A substantial  portion of
the Company's  subscriber  overvoltage surge protectors are used in NID housings
assembled  by the  Company or by OEMs.  Most NIDs sold in the United  States are
produced by  competitors of the Company,  some of which also market  overvoltage
surge protectors and station electronics. In addition, other suppliers to telcos
could  enter  the  market  and  compete  with  the  Company.   Furthermore,  the
Telecommunications  Act of 1996  permits  the  RBOCs,  which are  presently  the
principal  users of the Company's  products,  to manufacture  telecommunications
equipment.  Accordingly,  the RBOCs could decide to manufacture and supply their
own NIDs rather than purchase them from outside suppliers. Most of the Company's
competitors  and  many of  those  who  could  enter  the  Company's  market  are
well-established  suppliers  to the  telcos  and  are,  or are  part  of,  large
corporations which have substantially  greater assets,  financial  resources and
larger sales  forces,  manufacturing  facilities  and  research and  development
staffs than those of the Company.

INDUSTRY CONSOLIDATION AND PRICING PRESSURE

               The telcos have been going through a period of consolidation.  As
a result of this  consolidation  and the  telcos'  resulting  purchasing  power,
combined with the strength of certain of the Company's competitors,  the pricing
pressures in markets in which the Company competes have increased.

               In virtually all instances in which the Company has master supply
contracts,  including with the RBOCs,  such  contracts do not establish  minimum
purchase commitments but govern other terms and conditions, including

                                       -6-

<PAGE>



price.  The  Company's  supply  contracts  generally  prohibit  the Company from
increasing the price of its products sold thereunder for stated periods of time.
Accordingly,  any  significant  increase  in the  Company's  costs  during  such
periods,  without  offsetting  price  increases,  could have a material  adverse
effect on the  Company.  In  addition,  certain  of the  Company's  RBOC  supply
contracts  contain  declining  price  provisions.  Such  contractually  mandated
reductions in product selling prices could adversely affect gross margins of the
Company if it cannot  achieve  corresponding  reductions  in unit  manufacturing
costs.

OFFSHORE MANUFACTURING

               Except for its fiber optic products,  which are produced in North
Carolina, the Company manufactures its products in facilities in Puerto Rico and
the Dominican Republic.  As a result, the Company is subject to certain risks of
doing business outside the mainland of the United States,  such as the potential
for delays and added delivery  expenses in meeting rapid  delivery  schedules of
its customers.  Additionally,  the Company's  Dominican Republic  operations are
subject  to  potential  currency   fluctuations,   labor  unrest  and  political
instability, restrictions on the transfer of funds, export duties and quotas and
U.S. customs and tariffs and the potential for U.S. government  sanctions,  such
as embargos and restrictions on importation,  should certain political or social
events occur. Any such delays, unrest or sanctions could have a material adverse
effect on the Company.

INTERNATIONAL SALES

               Although  to  date,  the  Company's  export  sales  have not been
material,  the Company intends to expand its  international  sales and marketing
efforts  which could pose certain  risks,  such as complying  with  multiple and
potential conflicting regulations and product specifications,  export and import
limitations,  tariffs, differences in intellectual property protection, currency
fluctuations,  overlapping or different tax  structures,  political and economic
instability and trade restrictions. There can be no assurance that these efforts
will be effective or that the Company  will  achieve  significant  international
sales.

EXPIRATION OF LEASE FOR PUERTO RICO MANUFACTURING FACILITY

               The Company's  facilities  in Puerto Rico were  operated  under a
lease agreement with the Puerto Rico Industrial  Development Company ("PRIDCO"),
which has expired.  The Company and PRIDCO have  continued  operating  under the
terms of the  expired  lease.  While  the  Company  believes  it will be able to
renegotiate  this  lease  on  commercially  reasonable  terms,  there  can be no
assurance that it will be able to do so. The inability to renegotiate  the lease
would  cause the Company to relocate to other  facilities  in Puerto  Rico.  The
costs  associated  with any such  relocation  and  attendant  disruption  of the
Company's  business  operations  could  have a  material  adverse  effect on the
Company.

DEPENDENCE ON COMPONENT SUPPLIERS

               Although the Company generally uses standard and widely available
components and supplies in the  manufacture of its products,  a gel used to seal
the terminals of its new modular station protectors is currently  available from
a single source and the Company  generally  purchases many of its components and
supplies from a single or limited number of sources in order to obtain  quantity
purchase  discounts and maintain  standardization  and quality control over such
components.  Certain  components  and supplies are obtained  from  manufacturers
located  outside the United  States,  which could subject the  availability  and
control thereof to changes in government policies,  tariffs, import restrictions
and other  factors  beyond the Company's  control.  The Company has no contracts
with  suppliers of the  components  utilized in the  manufacture of its products
which  extend  for more than one year.  Except  for  delays  encountered  by the
Company in its attempt to accelerate production of its new broadband NID product
line  for  two  new  contracts,   the  Company  has  not  experienced   material
difficulties or delays in obtaining  components or supplies in the past (see "--
Recent Net  Losses").  While the Company  believes  that  substantially  all raw
materials  it uses in the  ordinary  course  will  continue to be  available  in
adequate

                                       -7-

<PAGE>



quantities at  competitive  prices,  there can be no assurance  that the Company
will not experience delays in delivery, the absence of components or supplies or
increases in prices in the future which could have a material  adverse effect on
the Company.

PATENT PROTECTION AND INFRINGEMENT RISKS; LICENSE AGREEMENTS

               Although  the  Company  has patent  protection  on certain of its
products or components,  it relies primarily on trade secrets and  nondisclosure
agreements to protect its  proprietary  rights.  There can be no assurance  that
these  protections  will be  adequate to protect its  proprietary  rights,  that
others  will not  independently  develop  or  otherwise  acquire  equivalent  or
superior technology and obtain patent or other protections  thereon, or that the
Company can maintain its  technology  as trade  secrets.  Also,  there can be no
assurance  that any  patents  the  Company  possesses  will not be  invalidated,
circumvented or challenged.  In addition,  the laws of some foreign countries do
not protect the Company's  proprietary  rights to the same extent as the laws of
the United  States and may  require  modifications  to be made to the  Company's
products  in order  to  obtain  any  necessary  foreign  patents  or  government
approvals,   which  could   affect  the   Company's   ability  to  increase  its
international  sales.  The failure of the  Company to protect  its  intellectual
property rights could have a material adverse effect on the Company.

               While  the  Company   believes  that  its  present  products  and
technology do not infringe the patents or intellectual property rights of others
and is not aware of any threatened patent or intellectual  property infringement
claims  against  it,  there can be no  assurance  that such  claims  will not be
asserted against the Company in the future.  Any litigation  resulting from such
claims  could  be  expensive  and  time  consuming,  could  divert  management's
attention from other matters or could  otherwise have a material  adverse effect
on  the  Company,  regardless  of the  outcome  of the  litigation.  An  adverse
determination  in any such  proceeding  or  failure  to obtain a license  from a
prevailing  claimant  on  satisfactory  terms could  prevent  the  Company  from
manufacturing  and  selling  products  covered  by the  patent  or  intellectual
property in  question,  which also could have a material  adverse  effect on the
Company.

               In  addition  to  protecting  its  trade  secrets,  know-how  and
proprietary  rights to  technology,  the  Company has  obtained,  and may in the
future be required to obtain, licenses to patents or other proprietary rights of
third  parties.  Pursuant  to  certain of such  licenses,  the  Company  will be
obligated to pay royalties to third parties,  including  minimum  royalties.  No
assurance  can be given  that any  license  required  under any  patent or other
proprietary  rights would be made available to the Company on acceptable  terms,
if at all.  If the  Company  does not  obtain  any  required  licenses  it could
experience delays in product development or interruptions of product sales while
it  attempts  to  design  around  blocking  patents,  or it could  find that the
development,  manufacture  or sale of products  which  require such  licenses is
foreclosed.

GOVERNMENT REGULATION

               The  telecommunications  industry is subject to regulation in the
United  States  and in  other  countries.  In the  United  States,  the  Federal
Communications   Commission   and  various  state  public   service  or  utility
commissions regulate the telcos and other communication access providers who use
the Company's products.  While such regulations  typically do not apply directly
to the  Company,  the effects of such  regulations,  which are under  continuous
review and subject to change,  could  adversely  affect the Company's  customers
and, therefore, the Company.

               Although  compliance  with  applicable  federal,  state and local
environmental  regulations  has  not  had,  and the  Company  does  not  believe
compliance  therewith in the future will have, a material  adverse effect on the
Company's earnings,  capital expenditures or competitive position,  there can be
no assurance that continued  compliance will not have a material  adverse effect
on the Company in the future.


                                       -8-

<PAGE>



DEPENDENCE ON KEY MANAGEMENT AND PERSONNEL

               The Company's  success  depends to a significant  degree upon the
continuing  contributions  of its key  management  and technical  personnel.  In
particular,  the Company's business would be materially adversely affected if it
were to lose the services of Timothy J. Roach, the Company's President and Chief
Executive  Officer.  The Company does not carry key man insurance on the life of
Mr. Roach. While the Company currently has a five-year employment agreement with
Mr. Roach which is automatically  renewed annually,  the loss of his services or
the services of certain of the Company's key  management or technical  personnel
could have a material adverse effect on the Company.

               Furthermore,  the Company's  Revolving Credit Agreement  requires
that Mr. Roach continue to actively manage the Company's  day-to-day  operations
and that Mr. Roach,  Alfred J. Roach,  Chairman of the Board of  Directors,  and
certain others continue to own in the aggregate at least 7.5% of the outstanding
Common  Stock.  As of February 15, 1998,  and  assuming  the  conversion  of the
Preferred  Shares at 95% of the closing bid price of the Company's  Common Stock
on that date and the exercise of the  Warrants  (but none of the options held by
them under the Company's  stock option  plans),  such persons would own 14.3% of
the Company's Common Stock that would have been outstanding on that date.

NO DIVIDENDS

               The Company  intends to retain any future earnings for use in its
business and  therefore  does not  anticipate  paying any cash  dividends in the
foreseeable  future.  In addition,  the  Company's  Revolving  Credit  Agreement
prohibits the Company from declaring and paying any dividends.

POTENTIAL VOLATILITY OF STOCK PRICE

               The market price of the Common  Stock has at times been,  and may
in the  future be,  subject to wide  fluctuations.  Factors  that may  adversely
affect the market price of the Common Stock include, among other things, quarter
to quarter  variations in operating  results,  changes in earnings  estimates by
analysts,  announce ments regarding  technological  innovations or new products,
announcements  of  gains  or  losses  of  significant  customers  or  contracts,
prospects in the communications industry, changes in the regulatory environment,
market  conditions and the sale or attempted sale of large amounts of the Common
Stock into the public markets.

SHARES ELIGIBLE FOR FUTURE SALE

               Sales of a  substantial  number of shares of Common  Stock in the
public market could  adversely  affect the market price for the Common Stock. In
addition to the Shares covered by this  Prospectus,  which may be sold following
exercise of the Warrants,  as of February 15, 1998,  6,284,976  shares of Common
Stock were freely tradeable  without  restriction  under the Securities Act. The
remaining 1,322,438  outstanding shares of Common Stock are owned by persons who
may be deemed to be "affiliates"  of the Company and are presently  eligible for
sale under Rule 144, subject to Rule 144's volume and other limitations. Of such
remaining  shares,  500,000  shares are  presently  subject to an effective  and
current registration statement under the Securities Act and, as such, are freely
tradeable without such limitations.

               In  addition,   300,000  shares,   issuable  upon  conversion  of
convertible indebtedness issued in 1991 to an unaffiliated third party, will, if
and when  converted,  be eligible for immediate sale under paragraph (k) of Rule
144 without any volume or other limitation. The Company has also registered, for
future  issuance  under the  Securities  Act,  2,436,000  shares of Common Stock
subject to its stock  option  plans (of which  2,313,126  shares were subject to
outstanding  options on February  15,  1998).  Any such  shares  issued upon the
exercise of options by persons  who are not  affiliates  of the Company  will be
freely  tradeable upon issuance and any such shares issued to affiliates will be
eligible for sale under Rule 144 without any further  holding period but subject
to certain volume and other limitations.

                                       -9-

<PAGE>



               In addition to the Shares registered  hereunder and the foregoing
shares,  the  Company has also  registered  for resale (i)  2,480,000  shares of
Common Stock which  consist of (a) up to 2,280,000  shares of Common Stock which
may be  issued  upon  conversion  of  5,000  shares  of the  Company's  Series C
Convertible  Preferred Stock and (b) 200,000 shares which may be issued upon the
exercise of warrants which are exercisable until January 25, 2001 (the preferred
stock and the  warrants  were sold by the  Company  in a  private  placement  in
January 1998) and (ii) 20,000 shares of Common Stock which are subject to future
issuance  upon the  exercise  of warrants  issued in July 1996 to purchase  such
shares until July 15, 2001 at an exercise  price of $6.15 per share (all of such
warrants  were issued by the Company to a registered  broker-dealer  retained by
the Company to act as a financial  advisor and were  transferred by that firm to
certain of its employees).

ANTI-TAKEOVER CONSIDERATIONS

               The  Company's   Certificate   of   Incorporation   requires  the
affirmative  vote of the  holders of at least 75% of the  outstanding  shares of
capital  stock of the Company  entitled to vote  thereon to  authorize:  (i) any
merger or consolidation  of the Company or any of its subsidiaries  with or into
another entity;  (ii) any sale, lease or exchange of all or substantially all of
the assets of the  Company and its  subsidiaries  taken as a whole if, as of the
record date for determining  stockholders entitled to vote on a matter in (i) or
(ii), the other party to the  transaction  beneficially  owns 10% or more of the
Company's  outstanding  capital  stock  entitled  to  vote  in the  election  of
directors  (other  than a person  who  beneficially  owned  at least  10% of the
Company's voting capital stock at December 3, 1979); or (iii) the dissolution of
the  Company.   The  supermajority  voting  requirement  does  not  apply  to  a
transaction  with a person or entity who became such 10% beneficial  owner after
the Company's  Board of Directors  approved the transaction in (i) or (ii) or as
to a dissolution of the Company if such dissolution is substantially  consistent
with such an approved transaction.  Mr. Alfred J. Roach is the only person known
to be a  beneficial  owner  of 10% or  more of the  Company's  voting  stock  at
December 3, 1979.

               The Board of  Directors is divided  into three  classes,  each of
which is elected in successive  years for  three-year  terms.  Accordingly,  any
persons  seeking to acquire  voting  control of the Company  solely  through the
election of directors would have to elect directors at two annual  stockholders'
meetings in order to elect a majority of the Board.

               The Company's  Certificate of Incorporation permits the Company's
directors  to issue  shares  of  Preferred  Stock in one or more  series  and to
designate  the terms of each series  without  further  stockholder  action.  The
Company also is subject to Section 203 of the Delaware  General  Corporation Law
(the  "DGCL")  which,  subject  to  certain  exceptions,  prohibits  a  Delaware
corporation from engaging in any of a broad range of business  combinations with
an "interested  stockholder" for a period of three years following the date that
such stockholder became an interested stockholder.  These provisions could serve
to impede or prevent  any  attempts by outside  persons or business  concerns to
obtain  control of the Company or have a  depressive  effect on the price of the
Common Stock. See "Description of Capital Stock."



                                      -10-

<PAGE>



                              SELLING STOCKHOLDERS

               The following  table sets forth  information,  as at February 15,
1998, as to (i) each Selling Stockholder's beneficial ownership of the Company's
Common  Stock prior to the  offering  of any Shares  hereunder  by such  Selling
Stockholder,  (ii) the number of Shares which may be offered for sale  hereunder
and (iii) the number of shares of the Company's  Common Stock to be beneficially
owned by such Selling Stockholder after the offering.



                                                                   SHARES OF
                                                                    COMMON
                    SHARES OF COMMON                                STOCK
                   STOCK BENEFICIALLY      SHARES OF COMMON      BENEFICIALLY
                      OWNED PRIOR TO      STOCK TO BE OFFERED     OWNED AFTER
    NAME                OFFERING(1)          HEREUNDER(1)          OFFERING
    ----                -----------          ------------          --------
Ladenburg,
 Thalmann & Co. Inc.     40,500                 40,500                0
Herbert Hochberg          9,750                  9,750                0
Peter Graham              3,250                  3,250                0
Ronald Kramer             3,250                  3,250                0
Jay Petschek              3,250                  3,250                0

- --------------------
(1) The Shares represent  Common Stock underlying  Warrants which were issued by
the  Company to  Ladenburg,  Thalmann & Co.  Inc.,  a  registered  broker-dealer
retained in September 1993 to provide financial consulting services.  Certain of
the  Warrants  were  subsequently  transferred  by that  firm to the  individual
Selling  Stockholders  who  were  employees  of  that  firm.  The  Warrants  are
exercisable  at an exercise  price of $6.5625 per share until  August 31,  1998,
such  exercise  price and the  number of Shares  subject to the  Warrants  being
subject to  potential  anti-dilution  adjustments  in the event of,  among other
things (a) stock  dividends,  splits,  combinations and  reclassifications,  (b)
issuances  of shares at a per share  price  less than the then per share  market
price  of the  Common  Stock  and  (c)  issuances  of  options  (except  options
exercisable  under  employee  benefit  arrangements),  warrants and  convertible
securities  if the total  consideration  per share to be received by the Company
therefor and upon exercise or conversion thereof is less than the then per share
market price of the Common Stock.  The Shares  underlying the Warrants have been
adjusted to reflect a 1-for-2.5  reverse stock split  effected by the Company on
April 26, 1994.

                                      -11-

<PAGE>



                          DESCRIPTION OF CAPITAL STOCK

               The following is a summary of certain provisions of the Company's
Amended  and  Restated   Certificate  of  Incorporation   (the  "Certificate  of
Incorporation"),  the Certificate of Designation  containing the preferences and
relative  rights  and  qualifications,   limitations  and  restrictions  of  the
Company's Series C Convertible Preferred Stock (the "Series C Preferred Shares")
and the  By-laws,  all of which are  exhibits  incorporated  by reference in the
Registration  Statement of which this  Prospectus  forms a part.  The  following
discussion is qualified in its entirety by reference to such exhibits.

               The  authorized   capital  stock  of  the  Company   consists  of
30,000,000  shares of Common  Stock,  $.01 par  value  per  share  (the  "Common
Stock"),  and 1,000,000  shares of Preferred  Stock, $ 1.00 par value per share,
issuable in series (the "Preferred  Stock"). As of February 15, 1998, there were
issued and outstanding  7,607,414  shares of Common Stock and the only shares of
Preferred Stock outstanding are the 5,000 Preferred Shares.

               COMMON STOCK

               Each holder of Common  Stock is entitled to one vote per share on
all  matters  submitted  to a vote of  stockholders.  Subject  to the  rights of
holders of Preferred  Stock, the holders of Common Stock are entitled to receive
dividends  when,  as and if  declared  by the  Board of  Directors  out of funds
legally available therefor and, in the event of the liquidation,  dissolution or
winding up of the Company,  to share ratably in all assets  remaining  after the
payment of liabilities.  There are no preemptive or other  subscription  rights,
conversion  rights or redemption or sinking fund  provisions with respect to the
Common Stock. All of the Company's presently issued and outstanding Common Stock
are fully paid and non-assessable.

               PREFERRED STOCK

               The  Preferred  Stock is issuable in one or more series from time
to time at the  discretion of the Board of Directors.  The Board is  authorized,
with  respect  to each  series,  to fix  its  designation,  powers,  preferences
(including  with respect to dividends  and on  liquidation),  rights  (including
voting,   dividend,   conversion,   sinking  fund  and  redemption  rights)  and
limitations.  Shares  of  Preferred  Stock  issued  by  action  of the  Board of
Directors could be utilized, under certain circumstances,  as a method of making
it more  difficult  for a party  to gain  control  of the  Company  without  the
approval of the Board of Directors.

               The  Company  presently  has no  plans  or  arrangements  for the
issuance of any additional Preferred Stock.

               The  Series  C  Preferred  Shares  bear  no  dividends,   have  a
liquidation  preference of $1,150 per Preferred Share and have no voting rights,
except  as  required  by the DGCL and with  respect  to (a) any  changes  to the
Certificate of Designation or the Company's  Certificate of Incorporation  which
would  amend,  alter,  change  or  repeal  any  of  the  powers,   designations,
preferences and rights of the Series C Preferred  Shares and (b) any issuance of
any  additional  Series C Preferred  Shares.  The Series C Preferred  Shares are
convertible  into shares of the  Company's  Common Stock  commencing  on May 27,
1998,  following  which a holder may convert,  in any thirty-day  period,  up to
one-third of the aggregate  number of Series C Preferred Shares purchased by the
initial holder of such Series C Preferred Shares, subject to acceleration of the
conversion right in certain cases. The Series C Preferred Shares are convertible
into shares of the  Company's  Common Stock (a) at a  conversion  price equal to
approximately $7.08 per share (the "Fixed Conversion Price") until July 25, 1998
and (b)  thereafter  at a  conversion  price equal to the lower of (i) the Fixed
Conversion  Price or (ii) 95% of the  average of the  closing  bid prices of the
Company's  Common Stock  during the ten  consecutive  trading  days  immediately
preceding  the  conversion  date of the  Series C  Preferred  Shares.  The Fixed
Conversion Price and percentage set forth above are subject to reduction subject
to certain exceptions, based upon periods of time that sales of shares of Common
Stock  underlying  the  Series  C  Preferred  Shares  cannot  be  made  under  a
registration  statement.  The conversion  price is also subject to anti-dilution
adjustments under a formula in certain  circumstances,  including,  with certain
exceptions,  (a) the  issuances of Common  Stock,  or the issuance of securities
which are exercisable into,

                                      -12-

<PAGE>



exchangeable   for  or  convertible  into  Common  Stock,  for  a  consideration
(including  amounts  receivable  upon such exercise,  exchange or conversion) at
below the then Fixed Conversion Price and (b) subdivisions or combination of the
Company's  Common  Stock.  The Company is subject to potential  penalties in the
event it fails to timely  permit  conversion of Series C Preferred  Shares.  The
Company is not  obligated  to issue more than  1,520,000  shares of Common Stock
upon  conversion  of  Series C  Preferred  Shares  (the  "Exchange  Cap") if the
issuance of a larger number would breach the Company's  obligations  under rules
and  regulations of The Nasdaq Stock Market.  If the Company cannot issue Common
Stock for any reason,  including by reason of the Exchange Cap, or fails to have
sufficient shares registered under the Securities Act for resale, the Company is
to issue as many shares of Common Stock as it is able to issue without violating
any  restriction  and the holder of unconverted  Series C Preferred  Shares may,
among  other  things,  require the  Company to redeem  those  Series C Preferred
Shares  which the  Company  is  unable  to  convert  at a  redemption  price per
Preferred  Share  equal to the greater of $1,150 or the closing bid price on the
proposed  conversion  date of the Common Stock which would have  otherwise  been
issued.  To meet this  potential  obligation,  the  Company  is  registering  an
aggregate  of  2,280,000  shares of Common  Stock  (150% of the number of shares
subject to the Exchange Cap) under the Securities Act.
See "Risk Factors - Shares Eligible for Future Sale."

               Unless  converted  or  redeemed  prior  thereto,   the  Series  C
Preferred Shares are to be automatically  converted into Common Stock on January
26, 2003 (subject to possible delay in certain instances).  The Company may also
require  conversion  of the  Series C  Preferred  Shares at any time on or after
January 26, 2001, subject to the fulfillment of certain conditions.

               The  Series  C  Preferred   Shares  are   redeemable,   prior  to
conversion,  (a) at the option of the Company until May 26, 1998 at a redemption
price of $1,150 per Preferred Share and (b) at the option of the holders thereof
at a price  equal to the higher of $1,150 or the then  closing  bid price of the
underlying shares of the Company's Common Stock in the event of certain business
combinations  of the Company,  the sale of  substantially  all of the  Company's
assets or in the case of a purchase,  tender or exchange offer for more than 50%
of the Company's Common Stock and in certain other cases,  including the failure
of the Company to obtain  effectiveness of the registration  statement discussed
above by September 23, 1998, to maintain such registration  statement  effective
for specified  periods of time, to maintain the listing of the Company's  Common
Stock on Nasdaq/NMS or to convert Series C Preferred Shares.

               CERTAIN  PROVISIONS  OF  THE  CERTIFICATE  OF  INCORPORATION  AND
               BY-LAWS

               Supermajority Vote Required for Certain Transactions

               The  Company's   Certificate   of   Incorporation   requires  the
affirmative  vote of the  holders of at least 75% of the  outstanding  shares of
capital  stock of the Company  entitled to vote  thereon to  authorize:  (i) any
merger or consolidation  of the Company or any of its subsidiaries  with or into
another entity;  (ii) any sale, lease or exchange of all or substantially all of
the assets of the  Company and its  subsidiaries  taken as a whole if, as of the
record date for determining  stockholders entitled to vote on a matter in (i) or
(ii), the other party to the  transaction  beneficially  owns 10% or more of the
Company's  outstanding  capital  stock  entitled  to  vote  in the  election  of
directors  (other  than a person  who  beneficially  owned  at least  10% of the
Company's voting capital stock at December 3, 1979); or (iii) the dissolution of
the  Company.   The  supermajority  voting  requirement  does  not  apply  to  a
transaction  with a person or entity who became such 10% beneficial  owner after
the Company's  Board of Directors  approved the transaction in (i) or (ii) or as
to a dissolution of the Company if such dissolution is substantially  consistent
with such an approved transaction.

               Classification of Board of Directors and Removal of Directors

               The  Certificate  of  Incorporation  and  By-laws of the  Company
divide the Board of Directors into three classes,  designated  Class I, Class II
and Class  III,  respectively,  each  class to be as  nearly  equal in number as
possible.  At each  annual  meeting of  stockholders,  directors  are elected to
succeed those in the class whose terms

                                      -13-

<PAGE>



then  expire,  each elected  director to serve for a term  expiring at the third
succeeding annual meeting of stockholders  after such director's  election,  and
until the director's successor is elected and qualified. Thus, directors elected
stand for election only once in three years.  The  Certificate of  Incorporation
and By-laws of the Company also provide that  directors  may be removed only for
cause by stockholders.

               Amending the Foregoing Provisions

               The Company's  Certificate of  Incorporation  and By-laws further
provide  that  the  affirmative  vote  of the  holders  of at  least  75% of the
Company's  outstanding  voting stock is required to make, alter or repeal, or to
adopt any provision inconsistent with, the foregoing provisions of the Company's
Certificate of Incorporation or Bylaws.

               Section 203 of the Delaware General Corporation Law

               The  Company is subject to the  provisions  of Section 203 of the
DGCL. In general,  this statute  prohibits a publicly held Delaware  corporation
from engaging, under certain circumstances,  in a "business combination" with an
"interested  stockholder" for a period of three years after the time that person
becomes an  interested  stockholder,  unless:  (i) prior to the time that person
became an interested  stockholder,  the board of directors  approved  either the
business  combination  or  the  transaction  in  which  the  person  becomes  an
interested  stockholder;   (ii)  the  person  acquires  more  than  85%  of  the
outstanding voting stock of the corporation  (excluding shares held by directors
who are officers or held in certain  employee stock plans) upon  consummation of
the transaction in which the person becomes an interested stockholder;  or (iii)
the business  combination  is approved by the board of directors and by at least
66-2/3% of the  outstanding  voting stock of the corporation  (excluding  shares
held by the interested  stockholder)  at a meeting of  stockholders  (and not by
written  consent)  held at or  subsequent  to the time  such  person  became  an
interested  stockholder.  An "interested  stockholder" is a person who, together
with  affiliates  and  associates,  owns (or at any time  within the prior three
years  did  own)  15% or more of the  corporation's  outstanding  voting  stock.
Section 203 defines a "business  combination"  to include,  without  limitation,
mergers,  consolidations,  stock  sales and asset based  transactions  and other
transactions resulting in a financial benefit to the interested stockholder.

               Anti-Takeover Effects

               The  foregoing   provisions  of  the  Company's   Certificate  of
Incorporation  and  By-laws  and the  effects of  Section  203 of the DGCL could
discourage potential  acquisition  proposals and could delay or prevent a change
in control  of the  Company.  These  provisions  are  intended  to  enhance  the
continuity  and stability of the Board of Directors and the policies  formulated
by the Board of Directors and to discourage  certain types of transactions  that
may  involve an actual or  threatened  change in control of the  Company.  These
provisions  are also designed to reduce the  vulnerability  of the Company to an
unsolicited  acquisition  proposal and to discourage certain tactics that may be
used in proxy fights. However, such provisions may discourage third parties from
making tender offers for the Company's shares. As a result,  the market price of
the  Common  Stock  may not  benefit  from  any  premium  that  might  occur  in
anticipation  of a threatened or actual change in control.  Such provisions also
may have the effect of preventing changes in the management of the Company.

               LIMITATION ON DIRECTORS' LIABILITY

               In accordance  with the DGCL, the  Certificate  of  Incorporation
provides that the directors of the Company shall not be personally liable to the
Company or its stockholders for monetary damages for breach of fiduciary duty as
a director  except (i) for any breach of the  director's  duty of loyalty to the
Company or its  stockholders,  (ii) for acts or  omissions  not in good faith or
which involve intentional  misconduct or a knowing violation of law, (iii) under
Section 174 of the DGCL,  which  relates to unlawful  payments of dividends  and
unlawful stock  repurchases  and  redemptions or (iv) for any  transaction  from
which the director derived an improper personal benefit. This provision does not
eliminate a director's fiduciary duties; it merely eliminates the possibility of

                                      -14-

<PAGE>



damage awards against a director  personally  which may be occasioned by certain
unintentional  breaches (including situations that may involve grossly negligent
business decisions) by the director of those duties. The provision has no effect
on the  availability  of  equitable  remedies,  such  as  injunctive  relief  or
rescission,  which might be  necessitated  by a director's  breach of his or her
fiduciary  duties.  However,  equitable  remedies  may  not  be  available  as a
practical matter where transactions  (such as merger  transactions) have already
been  consummated.  The  inclusion  of  this  provision  in the  Certificate  of
Incorporation  may have the effect of  reducing  the  likelihood  of  derivative
litigation  against  directors  and may  discourage  or  deter  stockholders  or
management from bringing a lawsuit against directors for breach of their duty of
care, even though such an action, if successful,  might otherwise have benefited
the Company and its stockholders.

               INDEMNIFICATION

               The  Certificate of  Incorporation  and By-laws  provide that the
Company shall  indemnify its  officers,  directors,  employees and agents to the
extent permitted by the DGCL. Section 145 of the DGCL provides, in general, that
the Company may indemnify any person who was or is a party,  or is threatened to
be made a  party,  to any  threatened,  pending  or  completed  action,  suit or
proceeding, whether civil, criminal, administrative or investigative (other than
a  "derivative"  action by or in the right of the Company) by reason of the fact
that  such  person  is or was a  director,  officer,  employee  or  agent of the
Company,  against expenses  (including  attorneys' fees),  judgments,  fines and
amounts paid in settlement in connection with such action, suit or proceeding if
such person acted in good faith and in a manner such person reasonably  believed
to be in or not opposed to the best interests of the Company,  and, with respect
to any criminal  action or proceeding,  had no reasonable  cause to believe such
person's  conduct was unlawful.  A similar standard of care is applicable in the
case of derivative actions,  except that no indemnification  shall be made where
the person is adjudged to be liable to the Company unless and only to the extent
that the Court of  Chancery  of the State of Delaware or the court in which such
action was brought determines that such person is fairly and reasonably entitled
to such indemnity and such expenses.

               TRANSFER AGENT AND REGISTRANT

               The transfer  agent and  registrar for the Common Stock is Harris
Trust Company of New York, Wall Street Plaza, 88 Pine Street, New York, New York
10005.

                              PLAN OF DISTRIBUTION

               The  Shares may be offered  for sale,  from time to time,  by the
Selling  Stockholders,  or by  their  pledgees,  donees,  transferees  or  other
successors in interest, in the over-the-counter  market, in privately negotiated
transactions  or otherwise at market  prices  prevailing at the time of sale, at
prices related to such  prevailing  market prices or at negotiated  prices.  The
Shares  covered by this  Prospectus  may also be sold under Rule 144  (including
paragraph (k) thereof) instead of under this Prospectus, to the extent available
for such sale.  Shares under this  Prospectus  may be sold by one or more of the
following methods: (a) ordinary brokerage transactions and transactions in which
the  broker  solicits  purchasers;  (b)  purchases  by a  broker  or  dealer  as
principal,  and the resale by such broker or dealer for its account  pursuant to
this Prospectus, including resale to another broker or dealer; (c) a block trade
in which the  broker or dealer so  engaged  will  attempt  to sell the Shares as
agent but may  position  and resell a portion of the block as principal in order
to facilitate the transaction;  or (d) negotiated  transactions  between Selling
Stockholders and purchasers  without a broker or dealer.  In connection with any
sales, a Selling  Stockholder and broker or dealer  participating  in such sales
may be deemed "underwriters" within the meaning of the Securities Act.

               Brokers or dealers  selling  under this  Prospectus  may  receive
commissions,   discounts  or  concessions  from  a  Selling  Stockholder  and/or
purchasers  of the Shares for whom such broker or dealers may act as agents,  or
to  whom  they  may  sell as  principal,  or both  (which  compensation  as to a
particular  broker or dealer  may be in excess of  customary  commissions).  The
Selling  Stockholders and any participating  brokers or dealers may be deemed to
be   "underwriters"   within  the  meaning  of  the  Securities  Act.  Any  such
commissions, discounts or concessions


                                      -15-

<PAGE>



and any gain  realized by such  broker or dealer on the sale of Shares  which it
purchases as a principal may be deemed to be  underwriting  compensation  to the
broker or dealer.

               While the  Selling  Stockholders  are not  restricted  in selling
Shares  during any  periods of time,  they may not,  in any  thirty-day  period,
convert more than one-third of the number of Preferred  Shares purchased by them
in the Private  Placement.  The Selling  Stockholders  have been  advised by the
Company that during the time each is engaged in  distributing  Shares covered by
this  Prospectus,  each must comply with the  requirements of the Securities Act
and Rule 10b-5 and  Regulation M under the Exchange  Act, and pursuant  thereto,
among  other  things:  (i) may  not  engage  in any  stabilization  activity  in
connection with the Company's securities;  (ii) must furnish each broker through
which Common Stock covered by this  Prospectus may be offered with the number of
copies of this Prospectus  which are required by each broker;  and (iii) may not
bid for or  purchase  any  securities  of the  Company  or attempt to induce any
person to purchase any of the Company's securities other than as permitted under
the Exchange Act.

                                  LEGAL MATTERS

               The validity of the Common Stock  offered  hereby was passed upon
by Parker Chapin Flattau & Klimpl,  LLP, 1211 Avenue of the Americas,  New York,
New York 10036.

                                     EXPERTS

               The  consolidated  financial  statements  and  schedules  of  TII
Industries,  Inc.  incorporated by reference from the Company's Annual Report on
Form 10-K for the year ended June 27, 1997 have been audited by Arthur  Andersen
LLP,  independent  public  accountants,  as set  forth in their  report  thereon
included therein and incorporated herein by reference. Such financial statements
and schedules are incorporated  herein by reference in reliance upon such report
given upon the authority of such firm as experts in accounting and auditing.




                                      -16-

<PAGE>






No  person  has  been   authorized  in
connection   with  the  offering  made
hereby to give any  information  or to
make any  representation not contained
in this  Prospectus or a supplement to            
this  Prospectus,  and,  if  given  or
made,     such      information     or
representation must not be relied upon
as  having  been   authorized  by  the
Company,  the Selling  Stockholders or
any   other   person.   Neither   this
Prospectus  nor any supplement to this
Prospectus  constitutes  an  offer  to
sell or a solicitation  of an offer to                60,000 Shares   
buy,  any  securities  other  than the                                
securities  to which it  relates or an                                
offer to sell or the  solicitation  of            TII INDUSTRIES, INC.
an offer to buy such securities in any                                
jurisdiction  where,  or to any person                                
to whom it is unlawful to make such an                Common Stock    
offer  or  solicitation.  Neither  the                                
delivery  of this  Prospectus  nor any                                
supplement to this  Prospectus nor any                                
sale  made   hereunder  or  thereunder                                
shall, under any circumstances, create                                
any implication that there has been no                                
change in the  affairs of the  Company                                
since the date  hereof or  thereof  or                 PROSPECTUS     
that the information  contained herein                                
is correct  as of any time  subsequent                                
to  the   dates  as  of   which   such                                
information is furnished.                                             
                                                                      
          -----------------                                           
                                                                      
          TABLE OF CONTENTS                                           
                                  Page                                
                                  ----                                
                                                                      
Available Information................2                                
Information Incorporated by                                           
 Reference...........................2                                
The Company..........................3                                
Risk Factors.........................4                                
Selling Stockholders................11                                
Description of Capital Stock........12                                
Plan of Distribution................15                                
Legal Matters.......................16                                
Experts.............................16               March ___, 1998  
                                                                      
                                                  
                                      II-1

<PAGE>




                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS
                     --------------------------------------


ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

               It is estimated  that the following  expenses will be incurred in
connection with the proposed  offering  hereunder.  All of such expenses will be
borne by the Company.


Registration fee - Securities and Exchange ..........                         
  Commission ........................................       $     116.16
Legal fees and expenses .............................           2,500.00
Accounting fees and expenses ........................             500.00
Printing and engraving expenses .....................             250.00
Miscellaneous .......................................             133.84
                                                            ------------
                          Total .....................       $   3,500.00
                                                            ============


ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

            Section 145 of the General  Corporation Law of the State of Delaware
(the "DGCL") provides,  in general,  that a corporation  incorporated  under the
laws of the State of Delaware, such as the registrant,  may indemnify any person
who was or is a party or is  threatened  to be made a party  to any  threatened,
pending or  completed  action,  suit or  proceeding,  whether  civil,  criminal,
administrative  or  investigative  (other than a derivative  action by or in the
right of the  corporation)  by reason  of the fact that such  person is or was a
director, officer, employee or agent of the corporation, or is or was serving at
the  request of the  corporation  as a director,  officer,  employee or agent of
another  enterprise,  against expenses (including  attorneys' fees),  judgments,
fines and amounts paid in settlement  actually and  reasonably  incurred by such
person in connection  with such action,  suit or proceeding if such person acted
in good faith and in a manner  such person  reasonably  believed to be in or not
opposed to the best  interests  of the  corporation,  and,  with  respect to any
criminal action or proceeding,  had no reasonable cause to believe such person's
conduct was unlawful. In the case of a derivative action, a Delaware corporation
may indemnify  any such person  against  expenses  (including  attorneys'  fees)
actually and reasonably  incurred by such person in connection  with the defense
or settlement of such action or suit if such person acted in good faith and in a
manner  such  person  reasonably  believed  to be in or not  opposed to the best
interests of the corporation,  except that no  indemnification  shall be made in
respect of any claim,  issue or matter as to which such  person  shall have been
adjudged to be liable to the corporation  unless and only to the extent that the
court determines such person is fairly and reasonably  entitled to indemnity for
such  expenses.  Article  XII of the  registrant's  By-laws  provides  that  the
registrant  shall so indemnify  such  persons.  In  addition,  Article 12 of the
registrant's  Restated Certificate of Incorporation,  as amended,  provides,  in
general,  that no director of the registrant  shall be personally  liable to the
registrant  or any of its  stockholders  for  monetary  damages  for  breach  of
fiduciary  duty as a director,  except for  liability  (i) for any breach of the
director's duty of loyalty to the corporation or its stockholders; (ii) for acts
or omissions  not in good faith or which  involve  intentional  misconduct  or a
knowing  violation of law;  (iii) under Section 174 of the DGCL (which  provides
that, under certain circumstances, directors may be jointly and severally liable
for willful or negligent violations of the DGCL provisions regarding the payment
of  dividends  or stock  repurchases  or  redemptions),  as the same  exists  or
hereafter may be amended;  or (iv) for any  transaction  from which the director
derived an improper personal benefit.




                                      II-2

<PAGE>





Item 16.                     Exhibits:

Exhibit Number               Description

4(a)(1)        Restated  Certificate of Incorporation  of the Company,  as filed
               with the  Secretary of State of the State of Delaware on December
               10, 1996. Incorporated by reference to Exhibit 3 to the Company's
               Quarterly  Report  on Form  10-Q  for the  fiscal  quarter  ended
               December 27, 1996 (File No. 1- 8048).

4(a)(2)        Certificate of Designation,  as filed with the Secretary of State
               of the State of  Delaware on January 26,  1998.  Incorporated  by
               reference to Exhibit 4.1 to the Company's  Current Report on Form
               8-K dated  (date of  earliest  event  reported)  January 26, 1998
               (File No. 1-8048).

4(b)           By-laws of the Company, as amended.  Incorporated by reference to
               Exhibit 4.02 to  Amendment  No. 1 to the  Company's  Registration
               Statement on Form S-3 (File No. 33- 64980).

5*             Opinion  of  Parker,  Chapin,  Flattau  &  Klimpl,  LLP as to the
               legality of the Common Stock being offered and consent.

23(a)*         Consent of Arthur Andersen LLP.

23(b)*         Consent of Parker Chapin Flattau & Klimpl, LLP (to be included in
               Exhibit 5).

24*            Powers of  Attorney  of certain  officers  and  directors  of the
               registrant  (included as part of the signature  page on page II-5
               of this filing).

99*            Form of Warrant held by the Selling Stockholders.

- ----------
*    Filed herewith.




                                      II-3

<PAGE>




ITEM 17.    UNDERTAKINGS.

               The undersigned registrant hereby undertakes:

               (1) To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement:

               (i) To include any prospectus required by Section 10(a)(3) of the
Securities Act of 1933;

               (ii) To reflect  in the  prospectus  any facts or events  arising
after the  effective  date of the  registration  statement  (or the most  recent
post-effective  amendment  thereof)  which,  individually  or in the  aggregate,
represent a fundamental  change in the information set forth in the registration
statement.  Notwithstanding the foregoing, any increase or decrease in volume of
securities  offered (if the total dollar value of  securities  offered would not
exceed that which was  registered) and any deviation from the low or high end of
the estimated  maximum offering range may be reflected in the form of prospectus
filed with the  Commission  pursuant  to Rule 424(b) if, in the  aggregate,  the
changes in volume  and price  represent  no more than 20  percent  change in the
maximum  aggregate  offering price set forth in the "Calculation of Registration
Fee" table in the effective registration statement;

               (iii) to include any  material  information  with  respect to the
plan of distribution not previously  disclosed in the registration  statement or
any material change to such information in the registration statement;

provided,  however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
registration statement is on Form S-3, Form S-8 or Form F-3, and the information
required to be included in a  post-effective  amendment by those  paragraphs  is
contained in periodic  reports filed with or furnished to the  Commission by the
registrant  pursuant to Section 13 or 15(d) of the  Securities  Exchange  Act of
1934 that are incorporated by reference in the registration statement.

               (2) That, for the purpose of determining  any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such  securities at that time shall be deemed to be the initial bona
fide offering thereof.

               (3) To  remove  from  registration  by means of a  post-effective
amendment  any of the  securities  being  registered  which remain unsold at the
termination of the offering.

               The undersigned  registrant  hereby undertakes that, for purposes
of determining  any liability  under the Securities Act of 1933,  each filing of
the  registrant's  annual  report  pursuant  to  Section  13(a)  or 15(d) of the
Securities  Exchange  Act of 1934  (and,  where  applicable,  each  filing of an
employee  benefit  plan's  annual  report  pursuant  to  Section  15(d)  of  the
Securities  Exchange  Act of 1934)  that is  incorporated  by  reference  in the
registration  statement  shall  be  deemed  to be a new  registration  statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

               Insofar as  indemnification  for  liabilities  arising  under the
Securities Act of 1933 may be permitted to directors,  officers and  controlling
persons of the registrant  pursuant to the foregoing  provisions,  or otherwise,
the  registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Act and is,  therefore,  unenforceable.  In the  event  that a claim  for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
registrant of expenses  incurred or paid by a director,  officer or  controlling
person of the  registrant  in the  successful  defense  of any  action,  suit or
proceeding)  is  asserted by such  director,  officer or  controlling  person in
connection with the securities being registered,  the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to a  court  of  appropriate  jurisdiction  the  question  whether  such
indemnification  by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.



                                      II-4

<PAGE>




                                   SIGNATURES

               Pursuant to the  requirements  of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized,  in the  Town of  Copiague,  State of New  York,  on the 27th day of
February, 1998.

                                                  TII INDUSTRIES, INC.



                                                  By: /s/ Timothy J. Roach
                                                    -------------------------
                                                     Timothy J. Roach, President

                                POWER OF ATTORNEY

               KNOW ALL  PERSONS  BY THESE  PRESENTS,  that  each  person  whose
signature  appears below constitutes and appoints each of Timothy J. Roach, Paul
G. Sebetic and Leonard W. Suroff and each of them with power of substitution, as
his  attorney-in-fact,  in all  capacities,  to  sign  any  amendments  to  this
registration  statement  (including  post-effective  amendments) and to file the
same, with exhibits  thereto and other documents in connection  therewith,  with
the Securities and Exchange Commission, hereby ratifying and confirming all that
said attorney-in-facts or their substitutes may do or cause to be done by virtue
hereof.

               Pursuant to the  requirements of the Securities Act of 1933, this
Registration  Statement  has been signed below by the  following  persons in the
capacities indicated on the 27th day of February, 1998.

          Signature                     Title                         
          ---------                     -----                         

/s/ Alfred J. Roach                Chairman of the Board
- ---------------------------
Alfred J. Roach



/s/ Timothy J. Roach               President (Chief Executive Officer)
- ---------------------------        and Director                       
Timothy J. Roach                   



/s/ Paul G. Sebetic                Vice President - Finance (Chief  
- ---------------------------        Financial and Accounting Officer)
Paul G. Sebetic                    



/s/ C. Bruce Barksdale             Director
- ---------------------------
C. Bruce Barksdale



/s/ Dorothy Roach                  Director
- ---------------------------
Dorothy Roach



/s/ Joseph C. Hogan                Director
- ---------------------------
Joseph C. Hogan



/s/ William G. Sharwell            Director
- ---------------------------
William G. Sharwell



/s/ James R. Grover, Jr.           Director
- ---------------------------
James R. Grover, Jr.







                                      II-5

<PAGE>




                                  EXHIBIT INDEX

Exhibit Number         Description
- --------------         -----------

4(a)(1)        Restated  Certificate of Incorporation  of the Company,  as filed
               with the  Secretary of State of the State of Delaware on December
               10, 1996. Incorporated by reference to Exhibit 3 to the Company's
               Quarterly  Report  on Form  10-Q  for the  fiscal  quarter  ended
               December 27, 1996 (File No. 1-8048).

4(a)(2)        Certificate of Designation,  as filed with the Secretary of State
               of the State of  Delaware on January 26,  1998.  Incorporated  by
               reference to Exhibit 4.1 to the Company's  Current Report on Form
               8-K dated  (date of  earliest  event  reported)  January 26, 1998
               (File No. 1-8048).

4(b)           By-laws of the Company, as amended.  Incorporated by reference to
               Exhibit 4.02 to  Amendment  No. 1 to the  Company's  Registration
               Statement on Form S-3 (File No. 33- 64980).

5*             Opinion  of  Parker,  Chapin,  Flattau  &  Klimpl,  LLP as to the
               legality of the Common Stock being offered and consent.

23(a)*         Consent of Arthur Andersen LLP.

23(b)*         Consent of Parker Chapin Flattau & Klimpl, LLP (to be included in
               Exhibit 5).

24*            Powers of  Attorney  of certain  officers  and  directors  of the
               registrant  (included as part of the signature  page on page II-5
               of this filing).

99*            Form of Warrant held by the Selling Stockholders.

- ----------
*    Filed herewith.




                                      II-6





                      PARKER CHAPIN FLATTAU & KLIMPL, LLP
                                  [LETTERHEAD]



                                               February 27, 1998


TII Industries, Inc.
1385 Akron Street
Copiague, New York  11726

Gentlemen:

               We have  acted as  counsel  to TII  Industries,  Inc,  a Delaware
corporation (the "Company"), in connection with a Registration Statement on Form
S-3 (the "Registration  Statement") being filed with the Securities and Exchange
Commission  under the Securities Act of 1933, as amended,  covering an aggregate
of 60,000  shares of the Company's  Common  Stock,  $.01 par value (the "Warrant
Shares"),  which may be issued  upon the  exercise  of  warrants  that have been
granted by the Company.

               In connection with the foregoing,  we have examined  originals or
copies,  satisfactory  to us,  of all  such  corporate  records  and of all such
agreements,  certificates  and other  documents  as we have deemed  relevant and
necessary as a basis for the opinion hereinafter expressed. In such examination,
we have assumed the  genuineness  of all  signatures,  the  authenticity  of all
documents  submitted to us as  originals  and the  conformity  with the original
documents of all documents  submitted to us as copies or  facsimiles.  As to any
facts  material to such opinion we have, to the extent that relevant  facts were
not independently  established by us, relied on certificates of public officials
and certificates of officers or other representatives of the Company.

               Based upon and  subject to the  foregoing,  we are of the opinion
that the  Warrant  Shares,  when paid for and issued  upon the  exercise  of the
warrants,  in accordance with the terms and provisions thereof,  will be validly
issued, fully paid and non-assessable.

               We hereby  consent to the filing of this opinion as an exhibit to
the Registration Statement.


                                               Very truly yours,


                                      /s/ PARKER CHAPIN FLATTAU & KLIMPL, LLP
                                        PARKER CHAPIN FLATTAU & KLIMPL, LLP








                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent  public  accountants,  we hereby consent to the  incorporation by
reference in this registration statement of our report dated September 19, 1997,
included in TII  Industries,  Inc.'s Form 10-K for the year ended June 27, 1997,
and to all references to our firm included in this registration statement.


/s/ Arthur Andersen LLP


San Juan, Puerto Rico,
February 27, 1998.





               WARRANT FOR THE PURCHASE OF SHARES OF COMMON STOCK


No. WL-3                                                        Shares _________
                                             Aggregate Warrant Price $ _________

               FOR VALUE  RECEIVED,  TII  Industries,  Inc. (the  "Company"),  a
Delaware  corporation,  hereby  certifies  that  _____________________  , or his
permitted assigns, is entitled to purchase from the Company, at any time or from
time to time commencing  September 1, 1993 and prior to 5:00 P.M., New York City
time then current, on August 31, 1998,  __________ fully paid and non-assessable
shares of the common stock, $.01 par value, of the Company at the purchase price
of $2.625 per share (said number of shares and exercise  price being at the date
of  original  issuance  of the  Warrants  and prior to any  adjustments  made or
required  to be made under  Section  3).  Hereinafter,  (i) said  common  stock,
together  with any other  equity  securities  which may be issued by the Company
with respect thereto or in substitution  therefor, is referred to as the "Common
Stock",  (ii) the shares of the Common Stock purchasable  hereunder are referred
to as the "Warrant Shares", (iii) the aggregate purchase price payable hereunder
for each of the Warrant Shares is referred to as the "Aggregate  Warrant Price",
(iv) the price payable  hereunder for each of the Warrant  Shares is referred to
as the "Per Share Warrant Price" and (v) this warrant and all warrants hereafter
issued in  exchange or  substitution  for this  warrant  are  referred to as the
"Warrants".  The Aggregate  Warrant Price is not subject to adjustment.  The Per
Share Warrant Price is subject to adjustment  as  hereinafter  provided;  in the
event of any such adjustment,  the number of Warrant Shares shall be adjusted by
dividing the  Aggregate  Warrant  Price by the Per Share Warrant Price in effect
immediately after such adjustment.

1.             Exercise of Warrant

               (a)This Warrant may be exercised, in whole at any time or in part
from time to time  commencing  September 1, 1993 (the  "Commencement  Date") and
prior to 5:00 P.M.,  New York City time then  current  on August  31,  1998 (the
"Expiration  Date"),  by the  holder  of  this  Warrant  (the  "Holder")  by the
surrender of this  Warrant  (with the  subscription  form at the end hereof duly
executed)  at the address set forth in Section 10 hereof,  together  with proper
payment of the Aggregate  Warrant Price,  or the  proportionate  part thereof if
this Warrant is exercised in part.  Payment for the Warrant Shares shall be made
by certified  or official  bank check,  payable to the order of the Company.  If
this Warrant is exercised in part,  this Warrant must be exercised  for a number
of whole shares of the Common Stock, and the Holder is entitled to receive a new
Warrant  covering the number of Warrant  Shares in respect of which this Warrant
has not been exercised and setting forth the proportionate part of the Aggregate
Warrant  Price  applicable  to such  Warrant  Shares.  Upon  such  exercise  and
surrender  of  this  Warrant,  the  Company  will  (i)  issue a  certificate  or
certificates in the name of the Holder for the largest number of whole shares of
the Common Stock to which the Holder  shall be entitled  and, if this Warrant is
exercised in whole, in lieu of any fractional share of the


<PAGE>



Common Stock to which the Holder  shall be entitled,  pay cash equal to the fair
value of such  fractional  share  (determined in such  reasonable  manner as the
Board of Directors of the Company shall  determine),  and (ii) deliver the other
securities and properties then receivable upon the exercise of this Warrant,  or
the proportionate part thereof if this Warrant is exercised in part, pursuant to
the provisions of this Warrant.

               (b) In lieu of exercising this Warrant in the manner set forth in
Subsection 1(a) above,  this Warrant may be exercised  between the  Commencement
Date and the Expiration  Date by surrender of the Warrant without payment of any
other  consideration,  commission  or  remuneration,  together with the cashless
exercise  subscription form at the end hereof, duly executed,  but the number of
Warrant  Shares to be issued in exchange for the Warrant shall be the product of
(x) the excess of the Per Share  Market  Price (as  defined in  Subsection  5(e)
below) of the  Common  Stock on the date of  surrender  of the  Warrant  and the
exercise  subscription  form over the Per Share Warrant Price and (y) the number
of  Warrant  Shares  subject  to the  portion of this  Warrant  being  exercised
pursuant to  Subsection  1(a) above divided by the Per Share Market Price of the
Common Stock on such date. Upon such exercise and surrender of this Warrant, the
Company will (i) issue a certificate or  certificates  in the name of the Holder
for the largest  number of whole  shares of the Common Stock to which the Holder
shall be entitled pursuant to this Subsection 1(b) and in lieu of any fractional
share of the Common Stock to which the Holder shall be entitled,  pay cash equal
to the fair value of such fractional share (determined in such reasonable manner
as the Board of Directors of the Company shall determine),  and (ii) deliver the
other  securities  and  properties  then  receivable  upon the  exercise of this
Warrant,  pursuant to the provisions of this Warrant.  Warrant Shares so applied
in payment of the Per Share Warrant Price shall no longer be issuable under this
Warrant.

2.             Reservation of Warrant Shares

               The Company agrees that, prior to the expiration of this Warrant,
the Company  will at all times have  authorized  and in  reserve,  and will keep
available,  solely for issuance or delivery  upon the exercise of this  Warrant,
such number of shares of the Common  Stock and such  amount of other  securities
and  properties as from time to time shall be deliverable to the Holder upon the
exercise of this Warrant, free and clear of all restrictions on sale or transfer
(except such as may be imposed  under  applicable  Federal and State  securities
laws)  and free and  clear of all  preemptive  rights  and all  other  rights to
purchase securities of the Company.

3.             Protection Against Dilution

               (a) If, at any time or from  time to time  after the date of this
Warrant,  the Company shall distribute to the holders of its outstanding  Common
Stock:  (i)  securities,  other than shares of Common Stock,  or (ii)  property,
other than cash without in either case payment therefor,  with respect to Common
Stock,  then,  and in each such case,  the  Holder,  upon the  exercise  of this
Warrant,  shall be entitled to receive the  securities  and  property  which the
Holder would

                                       -2-

<PAGE>



hold on the date of such  exercise if, on the date of this  Warrant,  the Holder
had been the  holder  of record of the  number  of  shares of the  Common  Stock
subscribed  for upon such exercise and,  during the period from the date of this
Warrant to and including the date of such exercise, had retained such shares and
the  securities  and  properties  receivable  by the Holder  during such period.
Notice of each such distribution shall be forthwith mailed to the Holder.

               (b) If, at any time or from  time to time  after the date of this
Warrant,  the  Company  shall (i) pay a dividend or make a  distribution  on its
capital stock in shares of Common Stock,  (ii) subdivide its outstanding  shares
of Common Stock into a greater number of shares,  (iii) combine its  outstanding
shares  of Common  Stock  into a  smaller  number  of  shares  or (iv)  issue by
reclassification of its Common Stock any shares of capital stock of the Company,
the Per Share Warrant Price in effect  immediately prior to such action shall be
adjusted  so that  the  Holder  of any  Warrant  thereafter  exercised  shall be
entitled to receive the number of shares of Common Stock or other  capital stock
of the Company which he would have owned or been entitled to receive immediately
following  the happening of any of the events  described  above had this Warrant
been exercised  immediately  prior thereto.  An adjustment made pursuant to this
Subsection 3 (b) shall become effective immediately after the record date in the
case of a dividend or distribution and shall become effective  immediately after
the   effective   date  in  the   case   of  a   subdivision,   combination   or
reclassification.  If,  as a  result  of an  adjustment  made  pursuant  to this
Subsection 3 (b), the holder of any Warrant thereafter  surrendered for exercise
shall become  entitled to receive shares of two or more classes of capital stock
or shares of Common Stock and other capital  stock of the Company,  the Board of
Directors (whose  determination  shall be conclusive and shall be described in a
written  notice to the Holder of any  Warrant  promptly  after such  adjustment)
shall  determine the  allocation of the adjusted Per Share Warrant Price between
or among shares of such  classes or capital  stock or shares of Common Stock and
other capital stock.

               (c) Except as provided in  Subsection  3(e),  in case the Company
shall hereafter issue or sell any shares of Common Stock for a consideration per
share less than the Per Share Market Price of Common Stock (determined  pursuant
to  Subsection  5(e))  as of the  close of  business  on the  business  day last
preceding  the  date on  which  such  issuance  or sale  was  authorized  by the
Company's  Board of Directors,  the Per Share Warrant Price shall be adjusted as
of the date of such  issuance  or sale so that the same  shall  equal  the price
determined  by  multiplying  the then existing Per Share Warrant Price as of the
close of  business on the  business  day last  preceding  the date on which such
issuance  or sale  was  authorized  by the  Company's  Board of  Directors  by a
fraction, the numerator of which shall be the sum of (A) the number of shares of
Common Stock  outstanding  immediately prior to such issuance or sale multiplied
by the Per Share  Market  Price as of the close of business on the  business day
last  preceding  the date on which such  issuance or sale was  authorized by the
Company's  Board of Directors plus (B) the aggregate  consideration  received by
the  Company  for the  issuance  or sale of capital  stock,  rights,  options or
warrants to acquire capital stock, or securities  convertible into capital stock
of the Company  (including  with respect to the securities  contemplated by this
Subsection 3(c)) since the last previous change in the Per Share Warrant

                                       -3-

<PAGE>



Price or, if there has been no such previous change,  since the issuance of this
Warrant,  and the  denominator  of which shall be the total  number of shares of
Common Stock  outstanding  immediately after such issuance or sale multiplied by
the Per Share  Market Price as of the close of business on the business day last
preceding  the  date on  which  such  issuance  or sale  was  authorized  by the
Company's Board of Directors.

               (d) Except as provided in  Subsection  3(e),  in case the Company
shall  hereafter  issue or sell any  rights,  options,  warrants  or  securities
convertible  into Common Stock  entitling the holders thereof to purchase Common
Stock or to convert such securities  into Common Stock for a  consideration  per
share  (determined  by  dividing  (i) the  total  amount,  if any,  received  or
receivable  by the  Company in  consideration  of the  issuance  or sale of such
rights,   options,   warrants   or   convertible   securities   plus  the  total
consideration,  if any,  payable to the  Company  upon  exercise  or  conversion
thereof (the "Total  Consideration")  by (ii) the number of additional shares of
Common Stock issuable upon exercise or conversion of such  securities)  which is
less than the then Per Share Market Price of Common Stock  (determined  pursuant
to  Subsection  5(e))  as of the  close of  business  on the  business  day last
preceding  the  date on  which  such  issuance  or sale  was  authorized  by the
Company's  Board of Directors,  the Per Share Warrant Price shall be adjusted as
of the date of such  issuance  or sale so that the same  shall  equal  the price
determined  by  multiplying  the then  existing  Per  Share  Warrant  Price by a
fraction, the numerator of which shall be the sum of (A) the number of shares of
Common Stock  outstanding  immediately prior to such issuance or sale multiplied
by the Per Share  Market  Price as of the close of business on the  business day
last  preceding  the date on which such  issuance or sale was  authorized by the
Company's  Board of  Directors  plus (3) the  Total  Consideration  plus (C) the
aggregate  amount of  consideration  received by the Company for the issuance or
sale of capital stock, rights,  options or warrants to acquire capital stock, or
securities convertible into capital stock of the Company (excluding with respect
to  securities  contemplated  by this  Subsection  (d)) since the last  previous
change in the Per  Share  Warrant  Price or, if there has been no such  previous
change, since the issuance of the Warrant, and the denominator of which shall be
the number of shares of Common Stock outstanding immediately after such issuance
or sale plus the maximum  number of additional  shares of Common Stock  issuable
upon exercise of the rights,  options,  warrants or the conversion of securities
convertible  into Common Stock which causes an adjustment  under this Subsection
3(d) multiplied by the Per Share Market Price as of the close of business on the
business  day  last  preceding  the  date on  which  such  issuance  or sale was
authorized by the Company's  Board of Directors.  No further  adjustments of the
Per Share Warrant  Price shall be made upon the actual  issuance of Common Stock
upon the exercise of such rights,  options,  warrants or securities  convertible
into Common Stock. Upon the expiration of any such right,  option or warrant, or
termination  of any right to convert any such  convertible  securities,  without
exercise,   the  Per  Share  Warrant  Price  then  in  effect  shall   forthwith
automatically  be increased to the Per Share  Warrant Price that would have been
in effect at the time of such expiration or termination had such right,  option,
warrant or convertible  securities,  to the extent outstanding immediately prior
to such  expiration or termination,  never been issued,  and the shares issuable
thereunder shall no longer be deemed outstanding.

                                       -4-

<PAGE>




               (e)  Notwithstanding  any provision  herein to the  contrary,  no
adjustment to the Per Share Warrant Price (nor number of Warrant  Shares subject
to this  Warrant)  shall be made pursuant to this Section 3 upon the issuance or
sale by the Company of any Common Stock upon the exercise or  conversion  of (i)
the Warrants (and all similar Warrants  originally  issued to the initial Holder
of the  Warrants  as of  September  1, 1993),  (ii) all  options,  warrants  and
convertible   securities  of  the  Company  outstanding  on  September  1,  1993
(including any  extensions of the expiration or termination  dates or repricings
thereof) and (iii)  options to purchase  shares of the  Company's  capital stock
which may be granted to employees  (including  employees who are officers and/or
directors of the Company) of the Company under any stock option plan, restricted
stock,  stock  purchase or other similar  benefit  arrangement  now or hereafter
adopted by the Board of Directors of the Company.

               (f) In case of any  consolidation  or merger to which the Company
is a party  other  than a merger or  consolidation  in which the  Company is the
continuing  corporation,  or in case of any sale or conveyance to another entity
of the property of the Company as an entirety or  substantially  as an entirety,
or in the case of any  statutory  exchange of  securities  with  another  entity
(including  any exchange  effectuated  in connection  with a merger of any other
corporation  with the  Company  other than a merger in which the  Company is the
continuing  corporation)  the  Holder  of this  Warrant  shall  have  the  right
thereafter to exercise such Warrant for the kind and amount of securities,  cash
or other  property  which he would have owned or have been  entitled  to receive
immediately  after  such  consolidation,  merger,  statutory  exchange,  sale or
conveyance  had this Warrant been exercised  immediately  prior to the effective
date of such consolidation,  merger,  statutory exchange, sale or conveyance and
in any such case,  if  necessary,  appropriate  adjustment  shall be made in the
application  of the  provisions  set forth in this Section 3 with respect to the
rights and  interests  thereafter  of the Holder of this Warrant to the end that
the provisions set forth in this Section 3 shall thereafter  correspondingly  be
made  applicable,  as nearly as may  reasonably be, in relation to any shares of
stock or other securities or property thereafter  deliverable on the exercise of
this Warrant. The above provisions of this Subsection 3(f) shall similarly apply
to successive consolidations, mergers, statutory exchanges, sales or conveyances
of property as an entirety or substantially  as an entirety.  Notice of any such
consolidation,  merger,  statutory  exchange,  sale or  conveyance,  and of said
provisions  so proposed to be made,  shall be mailed to the Holder not less than
20 days prior to such event. A sale of all or substantially all of the assets of
the Company for a  consideration  consisting  primarily of  securities  shall be
deemed a consolidation or merger for the foregoing purposes.

               (g) No  adjustment  in the  Per  Share  Warrant  Price  shall  be
required  unless  such  adjustment  would  require an increase or decrease of at
least $0.05 per share of Common Stock;  provided,  however, that any adjustments
which by reason of this  Subsection  3(g) are not  required  to be made shall be
carried  forward  and taken  into  account  in any  subsequent  adjustments  and
provided  further,  however,  that  adjustments  shall be  required  and made in
accordance  with the  provisions  of this Section 3 (other than this  Subsection
3(g)) not later than

                                       -5-

<PAGE>



such time as may be  required  in order to  preserve  the  tax-free  nature of a
distribution  to the Holder of this Warrant or Common  Stock.  All  calculations
under this Section 3 shall be made to the nearest cent or the nearest 1/100th of
a  share,  as the  case  may be.  Anything  in this  Section  3 to the  contrary
notwithstanding,  the Company  shall be entitled to make such  reductions in the
Per Share Warrant Price,  in addition to those required by this Section 3, as it
in its discretion  shall deem to be advisable in order that any stock  dividend,
subdivision of shares or  distribution of rights to purchase stock or securities
convertible  or  exchangeable  for stock  hereafter  made by the  Company to its
shareholders shall not be taxable.

               (h) Whenever the Per Share  Warrant Price is adjusted as provided
in this Section 3 and upon any  modification of the rights of the Holder of this
Warrant  in  accordance  with this  Section  3, the  Company  shall,  at its own
expense, within ten (10) days of such adjustment or modification, deliver to the
holder of this Warrant a certificate of the Principal  Financial  Officer of the
Company  setting  forth the  unaudited Per Share Warrant Price and the number of
Warrant Shares after such adjustment or the effect of such modification, a brief
statement of the facts requiring such adjustment or modification  and the manner
of computing the same.

               (i) If the Board of  Directors of the Company  shall  declare any
dividend or other  distribution in cash with respect to the Common Stock,  other
than out of earned surplus,  the Company shall mail notice thereof of the Holder
not  less  than  10  days  prior  to  the  record  date  fixed  for  determining
shareholders entitled to participate in such dividend or other distribution.

               (j) In the event of the  exercise of all or part of this  Warrant
after the record  date for any event  described  in  Subsection  3(a) or (b) but
prior to the effective or payment date therefor, the Company may defer until the
effective or payment  date issuing  (and,  in case of any stock  combination  or
reclassification  that would result in the Holder being entitled to fewer shares
of Common  Stock,  the  Company  need not  issue) to the  Holder  any  shares or
property  in  addition  to (or in  excess  of) that  which the  Holder  would be
entitled to own prior to such payment or effective date had the Holder exercised
this Warrant (or portion  thereof  exercised)  immediately  prior to such record
date.

               (k)  If  the  consideration  received  or to be  received  by the
Company  with  respect  to  any  Common  Stock,  rights,  options,  warrants  or
securities  convertible  into Common Stock  (including any future  consideration
which may be received):  (i) is cash,  the amount thereof shall be the amount of
cash to be received and/or (ii) is a  consideration  other than cash, the amount
of such other  consideration shall be deemed to be the fair market value of such
consideration  as  determined  by the Board of Directors of the Company,  in the
case of (i) and/or (ii) without deduction  therefrom of any expenses incurred or
any  underwriting  commissions,  discounts or concessions paid or allowed by the
Company.

4.             Fully Paid Stock: Taxes

               The  Company   agrees  that  the  shares  of  the  Common   Stock
represented by each and

                                       -6-

<PAGE>



every  certificate for Warrant Shares  delivered on the exercise of this Warrant
in accordance  with the terms hereof  shall,  at the time of such  delivery,  be
validly issued and outstanding,  fully paid and non-assessable,  and not subject
to preemptive rights or other contractual  rights to purchase  securities of the
Company,  and the  Company  will take all such  actions as may be  necessary  to
assure that the par value or stated value, if any, per share of the Common Stock
is at all  times  equal to or less than the then Per Share  Warrant  Price.  The
Company further covenants and agrees that it will pay, when due and payable, any
and all Federal and state stamp,  original  issue or similar  taxes which may be
payable in respect of the issue of any Warrant Share or certificate therefor.

5.             Registration Under Securities Act of 1933

               (a) The Company agrees that if, on one occasion during the period
commencing  on  September  1, 1994,  and  ending on the  earlier to occur of the
second  anniversary  of the exercise of this  Warrant or September 1, 2000,  the
Holder and/or the Holders of any other  Warrants  and/or  Warrant  Shares who or
which  shall  hold,  in the  aggregate,  not less than 50% of the sum of (i) the
number of Warrant Shares subject to then  outstanding  Warrants and (ii) Warrant
Shares outstanding at such time and not previously sold pursuant to this Section
5, request that the Company file a registration  statement  under the Securities
Act of 1933, as amended (the "Act"),  covering all or any of the Warrant  Shares
(but not less than 75,000 Warrant  Shares) the Company will (i) promptly  notify
the Holder and all other  registered  Holders,  if any, of other Warrant  and/or
Warrant  Shares  that  such  registration  statement  will be filed and that the
Warrant  Shares  which are then  held,  and/or  which may be  acquired  upon the
exercise of  Warrants,  by the Holder and such  Holders will be included in such
registration  statement at the Holder's and such  Holders'  request,  (ii) cause
such  registration  statement  to cover all Warrant  Shares which it has been so
requested  to  include,  (iii) use its best  efforts to cause such  registration
statement to become effective as soon as practicable and to remain effective and
current until such time as an amendment is required to be filed  pursuant to the
provisions  of Section  10(a)(3)  of the Act,  provided,  however,  that if such
registration  statement  is on a  registration  form that may be kept current be
means of incorporating by reference  periodic reports filed by the Company under
Section 13 of the Securities  Exchange Act of 1934, two years from the effective
date of such registration  statement,  and (iv) subject to Subsection 5(c) below
use its best  efforts to take all other  action  necessary  under any Federal or
state law or  regulation  of any  governmental  authority  to permit all Warrant
Shares which it has been so requested to include in such registration  statement
to be sold or otherwise disposed of and (c) subject to Subsection 5(a)(iii), use
its best efforts to maintain  such  compliance  with each such Federal and state
law and regulation of any  governmental  authority for the period  necessary for
the Holder and such Holders to effect the proposed sale or other disposition.

               (b) The Company agrees that if, at any time and from time to time
during the period  commencing  on September 1, 1994 and ending on the earlier to
occur of the second  anniversary of the exercise of this Warrant or September 1,
2000, the Board of Directors of

                                       -7-

<PAGE>



the Company shall  authorize the filing of a  registration  statement  (any such
registration   statement  being  sometimes   hereinafter  called  a  "Subsequent
Registration  Statement")  under the Act (otherwise  than pursuant to Subsection
5(a)  hereof  and  otherwise  than in  connection  with  mergers,  acquisitions,
exchange offers or  recapitalizations on Form S-4 (or a successor form thereto),
subscription  offers,  dividend  reinvestment  plans and  stock  option or other
employee  benefit  plans) in  connection  with the proposed  offer of any of its
securities  by it or any of its  shareholders,  the  Company  will (i)  promptly
notify the Holder and all other  registered  Holders,  if any, of other Warrants
and/or Warrant Shares that such Subsequent  Registration Statement will be filed
and that the Warrant  Shares  which are then held,  and/or which may be acquired
upon the  exercise  of the  Warrants,  by the  Holder and such  Holders  will be
included in such  Subsequent  Registration  Statement  at the  Holder's and such
Holders'   request,   (ii)  use  its  best  efforts  to  cause  such  Subsequent
Registration  Statement  to  cover  all  Warrant  Shares  which  it has  been so
requested  to  include,  (iii) use its best  efforts  to cause  such  Subsequent
Registration  Statement to cover all Warrant Shares which it has be so requested
to include,  (iii) use its best  efforts to cause such  Subsequent  Registration
Statement to become effective as soon as practicable and to remain effective and
current until such time as an amendment is required to be filed  pursuant to the
provisions  of Section  10(a)(3)  of the Act,  provided,  however,  that if such
registration  statement  is on a  registration  form that may be kept current by
means of incorporating by reference  periodic reports filed by the Company under
Section 13 of the Securities  Exchange Act of 1934, two years from the effective
date of such registration  statement,  and (iv) subject to Subsection 5(a)(iii),
use its best  efforts to take all other  action  necessary  under any Federal or
state law or  regulation  of any  governmental  authority  to permit all Warrant
Shares which it has been so requested to include in such Subsequent Registration
Statement to be sold or  otherwise  disposed of and will use its best efforts to
maintain such  compliance with each such Federal and state law and regulation of
any  governmental  authority  for the period  necessary  for the Holder and such
holders  to  effect  the  proposed  sale or other  disposition.  Notwithstanding
anything  to the  contrary  in this  Subsection  5(b),  if any  such  Subsequent
Registration  Statement  relates to an  underwritten  offering  and the managing
underwriter(s)  of such  offering  advises in writing  that in its  opinion  the
inclusion in such Subsequent Registration Statement of any of the Warrant Shares
exceeds  the number of  securities  that can be sold in such  offering  or could
materially  and  adversely  affect  the price  that  could be  obtained  in such
offering,  then the number of Warrant  Shares to be included in such  Subsequent
Registration  Statement  shall be reduced on a pro rata basis  amount  among the
Warrant Shares proposed to be included in such Subsequent Registration Statement
and all other securities proposed to be sold in the offering to such number that
such  managing  underwriter(s)  advises  could be included in such  underwriting
without  interfering with the successful  marketing of the securities  otherwise
proposed to be sold in the  offering.  Furthermore,  it shall be a condition  to
participation in any  underwritten  offering that a holder of the Warrant Shares
who elects to participate in the Subsequent  Registration  Statement execute and
deliver  an  Underwriting  Agreement  with  the  proposed  underwriters  of such
offering.

               (c) Whenever the Company is required  pursuant to the  provisions
of this Section 5

                                       -8-

<PAGE>



to include  Warrant  Shares in a registration  statement,  the Company shall (i)
furnish  each Holder of any such  Warrant  Shares and each  underwriter  of such
Warrant  Shares with such copies of the  prospectus,  including the  preliminary
prospectus,  conforming to the Act (and such other documents as each such Holder
or each such underwriter may reasonably request) in order to facilitate the sale
or distribution  of the Warrant Shares,  (ii) use its best effort to register or
qualify such Warrant  Shares under the blue sky laws (to the extent  applicable)
of such  jurisdiction or jurisdictions as the Holders of any such Warrant Shares
and  each  underwriter  of  Warrant  Shares  being  sold by such  Holders  shall
reasonably  request  and (iii)  take such  other  actions  as may be  reasonably
necessary  or  advisable  to  enable  such  Holders  and  such  underwriters  to
consummate the sale or distribution in such  jurisdiction  or  jurisdictions  in
which such Holders shall have  reasonably  requested  that the Warrant Shares be
sold provided that the Company shall not be required to qualify  generally to do
business in any jurisdiction where it would not otherwise be required to qualify
but for this Subsection 5(c).

               (d) The Company  shall pay all  expenses  incurred in  connection
with any  registration  or  other  action  pursuant  to the  provisions  of this
Section, including up to $25,000 of attorneys' fees and expenses for one counsel
representing  the Holder(s) of the Warrant Shares  covered by such  registration
statement  incurred in connection  with such  registration or other action other
than  underwriting  discounts  and  applicable  transfer  taxes  relating to the
Warrant Shares.

               (e) The Per Share  Market  Price of Common  Stock  shall mean the
price of a share of Common Stock on the relevant  date,  determined on the basis
of (i) the last  reported  sale price of the  Common  Stock as  reported  on the
NASDAQ National  Market System  ("NASDAQ") or, if there is no such reported sale
on the day in question, on the basis of the average of the closing bid and asked
quotations as so reported, or, (ii) if the Common Stock is not listed on NASDAQ,
the last  reported  sale price of the Common Stock on such  national  securities
exchange  upon which the Common  Stock is listed,  or,  (iii) if neither (i) nor
(ii) is  applicable,  on the basis of the  average of the  closing bid and asked
quotations on the day in question in the over-the-counter  market as reported by
the National  Association of Securities Dealers' Automated Quotations System, or
if not so quoted,  as reported by National  Quotation  Bureau,  Incorporated  or
similar organization.

               (f)  Notwithstanding  anything in this Section 5 to the contrary:
the  Company  shall be  entitled  to  postpone  the  filing of any  registration
statement  otherwise  required to be  prepared  and filed by it and shall not be
obligated to keep an effective  registration statement current (i) to the extent
and  during  such time as is  reasonably  necessary  to  prepare  the  financial
statements  of the Company for the fiscal  period most  recently  ended prior to
such written  request or required to be included with respect to another  entity
by reason of an acquisition or otherwise,  (ii) for a period of up to 90 days if
the Company  would be required to disclose in such  registration  statement  the
existence of any fact relating to a material business situation,  transaction or
negotiation  not  otherwise   publicly   disclosed   (which  right  to  postpone
registration  shall  terminate upon the public  disclosure by the Company of the
existence of such fact) and

                                       -9-

<PAGE>



(iii) during the 180-day period  following the  effectiveness  of a registration
statement filed by the Company in connection  with an underwritten  primary or a
secondary offering of its securities.

               (g)  Notwithstanding  anything to this Section 5 to the contrary,
the Company  will have no such  obligation  to prepare  and file a  registration
statement or include  Warrant Shares in any  registration  which it prepares and
files:  (i) if it provides to the Holders so requesting  registration an opinion
of counsel, in form and substance reasonably satisfactory to such Holder, to the
effect that the Warrant Shares for which  registration is being requested may be
sold  under  Rule 144 under the Act or  otherwise  in open  market  transactions
without registration and without compliance with Rule 144 under the Act and (ii)
if, within thirty days after it receives any request for such  registration,  it
agrees to purchase  for cash  within  twenty  (20) days  thereafter  (the Holder
hereof  hereby  grants  the  Company  the right and option to so  purchase  such
Warrants  and Warrant  Shares in such  circumstances)  the  Warrants and Warrant
Shares for which  registration has been requested at a price equal to (A) in the
case of Warrants,  the difference between the then Per Share Market Price of the
Common Stock and the Per Share Warrant Price of such Warrants  multiplied by the
number of Warrant Shares being  purchased or (B) in the case of Warrant  Shares,
the then Per Share Market Price of the Common Stock  multiplied by the number of
Warrant Shares being purchased.

6.             Indemnification

               (a) The  Company  agrees  to  indemnify  and hold  harmless  each
selling  holder of Warrant  Shares and each person who controls any such selling
holder  within the  meaning of Section 15 of the Act,  and each and all of them,
from and against any and all losses,  claims,  damages,  liabilities or actions,
joint or several,  to which any selling  holder of Warrant Shares or they or any
of them may become  subject  under the Act or  otherwise  and to  reimburse  the
persons  indemnified  as  above  for any  reasonable  legal  or  other  expenses
(including the cost of any  investigation  and preparation)  incurred by them in
connection  with  any  litigation  or  threatened  litigation,  whether  or  not
resulting in any liability,  but only insofar as such losses,  claims,  damages,
liabilities or actions arise out of or are based upon, (i) any untrue  statement
or alleged  untrue  statement of a material fact  contained in any  registration
statement  pursuant  to which  Warrant  Shares  were  registered  under  the Act
(hereinafter called a "Registration Statement"), any preliminary prospectus, the
final  prospectus or any amendment or supplement  thereto (or in any application
or document filed in connection  therewith) or document  executed by the Company
based upon written information furnished by or on behalf of the Company filed in
any  jurisdiction  in order to register or qualify the Warrant  Shares under the
securities  laws thereof or the omission or alleged  omission to state therein a
material fact required to be stated  therein or necessary to make the statements
therein,  in the light of the  circumstances  under  which they were  made,  not
misleading,  or (ii) the  employment  by the  Company of any  device,  scheme or
artifice to  defraud,  or the  engaging  by the Company in any act,  practice or
course of conduct which  operates or would operate as a fraud or deceit,  or any
conspiracy  with respect  thereto,  in which the Company shall  participate,  in
connection with the issuance and

                                      -10-

<PAGE>



sale of any of the Warrant  Shares;  provided,  however,  that (i) the indemnity
agreement  contained  in this  Subsection  6(a) shall not extend to any  selling
holder of  Warrant  Shares  in  respect  of any such  losses,  claims,  damages,
liabilities or actions arising out of, or based upon, any such untrue  statement
or alleged untrue statement,  or any such omission or alleged omission,  if such
statement or omission  was based upon and made in  conformity  with  information
furnished  in writing  to the  Company  by a selling  holder of  Warrant  Shares
specifically  for use in connection  with the  preparation of such  Registration
Statement,  any  final  prospectus,  any  preliminary  prospectus  or  any  such
amendment or supplement  thereto.  The Company agrees to pay any legal and other
expenses  for which it is liable  under this  Subsection  6(a) from time to time
(but not more  frequently  than  monthly)  within 30 days after its receipt of a
bill therefor.

               (b) Each  selling  holder of Warrant  Shares,  severally  and not
jointly,  will  indemnify  and hold  harmless the Company,  its  directors,  its
officers who shall have signed the  Registration  Statement and each person,  if
any, who controls the Company within the meaning of Section 15 of the Act to the
same extent as the foregoing indemnify from the Company, but in each case to the
extent,  and only to the  extent,  that any  statement  in or  omission  from or
alleged omission from such Registration  Statement,  any final  prospectus,  any
preliminary  prospectus  or any  amendment  or  supplement  thereto  was made in
reliance  upon  information  furnished in writing to the Company by such selling
holder of Warrant Shares specifically for use in connection with the preparation
of  the  Registration  Statement,   any  final  prospectus  or  any  preliminary
prospectus or any such amendment or supplement thereto,  provided however,  that
the  obligation  of any holder of Warrant  Shares to indemnify the Company under
the  provisions of this  Subsection 6 (b) shall be limited to the product of the
number of Warrant  Shares being sold by the selling  holder and the market price
of the  Common  Stock  on the date of the sale to the  public  of these  Warrant
Shares.  Each selling holder of Warrant Shares agrees to pay any legal and other
expenses  for which it is liable  under this  Subsection  6(b) form time to time
(but not more  frequently  than monthly)  within 30 days after receipt of a bill
therefor.

               (c) if any  action  is  brought  against  a  person  entitled  to
indemnification   pursuant  to  the  foregoing  Subsection  6  (a)  or  (b)  (an
"indemnified  party")  in  respect of which  indemnity  may be sought  against a
person  granting  indemnification  (an  "indemnifying  party")  pursuant to such
Subsection, such indemnified party shall promptly notify such indemnifying party
in  writing  of the  commencement  thereof,  but the  omission  so to notify the
indemnifying  party of any such action shall not release the indemnifying  party
from any  liability  it may have to such  indemnified  party  otherwise  than on
account of the indemnity  agreement contained in Subsection 6(a) or (b). In case
any such  action is brought  against an  indemnified  party and it  notifies  an
indemnifying party of the commencement  thereof,  the indemnifying party against
which a claim is to be made will be entitled to  participate  therein at its own
expense  and, to the extent  that it may wish,  to assume at its own expense the
defense thereof, with counsel reasonably satisfactory to such indemnified party,
provided,  however,  that (i) if the  defendants in any such action include both
the indemnified party and the indemnifying party and the

                                      -11-

<PAGE>



indemnified  party shall have reasonably  concluded based upon advice of counsel
that  there  may be legal  defenses  available  to it and/or  other  indemnified
parties  which  are  different  from or  additional  to those  available  to the
indemnifying  party,  the  indemnified  party  shall  have the  right to  select
separate  counsel to assert such legal  defenses and otherwise to participate in
the  defense of such action on behalf of such  indemnified  party or parties and
(ii) in any event,  the  indemnified  party shall be  entitled  to have  counsel
chosen by such indemnified party participate in, but not conduct, the defense at
the  expense  of the  indemnifying  party.  Upon  receipt  of  notice  from  the
indemnifying  party to such  indemnified  party of its election so to assume the
defense of such action and  approval by the  indemnified  party of counsel,  the
indemnifying  party  will not be liable to such  indemnified  party  under  this
Section  6 for  any  legal  or  other  expenses  subsequently  incurred  by such
indemnified  party  in  connection  with  the  defense  thereof  unless  (i) the
indemnified  party  shall have  employed  such  counsel in  connection  with the
assumption  of  legal  defenses  in  accordance  with  proviso  (i) to the  next
preceding  sentence (it being understood,  however,  that the indemnifying party
shall not be liable for the  expenses of more than one separate  counsel),  (ii)
the indemnifying party shall not have employed counsel  reasonably  satisfactory
to the indemnified  party to represent the indemnified party within a reasonable
time after notice of commencement of the action or (ii) the  indemnifying  party
has  authorized  the  employment  of counsel  for the  indemnified  party at the
expense of the indemnifying party. An indemnifying party shall not be liable for
any settlement of any action or proceeding effected without its written consent.

               (d) In order to provide  for just an  equitable  contribution  in
circumstances in which the indemnity  agreement provided for in Subsection 6 (a)
is  unavailable  to a selling  holder of Warrant  Shares in accordance  with its
terms,  the Company and the selling holder of Warrant Shares shall contribute to
the aggregate losses, claims, damages and liabilities of the nature contemplated
by said  indemnity  agreement  incurred by the Company and the selling holder of
Warrant  Shares in such  proportions  as is  appropriate to reflect the relative
benefits  received by the Company and the selling  holder of Warrant Shares from
any offering of the Warrant Shares;  provided,  however, that if such allocation
is not permitted by applicable  law or if the  indemnified  party failed to give
the notice  required  under  Subsection 6 (c),  then the  relative  fault of the
Company  and the  selling  holder  of  Warrant  Shares  in  connection  with the
statements  or  omissions  which  resulted in such losses,  claims,  damages and
liabilities  and other  relevant  equitable  considerations  will be  considered
together with such relative benefits.

               (e) The respective  indemnity and contribution  agreements by the
Company and the selling  holder of Warrant  Shares in Subsection 6 (a), (b), (c)
and (d) shall remain  operative  and in full force and effect  regardless of (i)
any  investigation  made by any  selling  holder of  Warrant  Shares or by or on
behalf of any person who controls  such selling  holder or by the Company or any
controlling person of the Company or any director or any officer of the Company,
(ii)  payment for any of the  Warrant  Shares or (iii) any  termination  of this
Agreement,  and shall  survive  the  delivery  of the  Warrant  Shares,  and any
successor of the Company,  or any of selling  holder of Warrant Shares or of any
person who controls the Company or of any selling holder of Warrant  Shares,  as
the case may be, shall be entitled to

                                      -12-

<PAGE>



the  benefit of such  respective  indemnity  and  contribution  agreements.  The
respective indemnity and contribution  agreements by the Company and the selling
holder of Warrant Shares contained in Subsection 6(a), (b), (c) and (d) shall be
in addition to any liability which the Company and the selling holder of Warrant
Shares may otherwise have.

7.             Limited Transferability

               (a) This Warrant is not  transferable or assignable by the Holder
except it may be transferred in compliance  with Subsection (b) and with respect
to not less than 20,000  Warrant  Shares,  this Warrant may be  transferred  and
assigned:  (i)  to  Ladenburg,  Thalmann  & Co.  Inc.,  any  successor  firm  or
corporation  of Ladenburg,  Thalmann & Co. Inc.,  (ii) to any of the officers or
employees of  Ladenburg,  Thalmann & Co. Inc. or of any such  successor  firm or
(iii) in the case of an individual  pursuant to such  individual's last will and
testament or the laws of descent and  distribution  and is so transferable  only
upon the books of the  Company  which it shall  cause to be  maintained  for the
purpose. The Company may treat the registered holder of this Warrant as he or it
appears on the Company's  books at any time as the Holder for all purposes.  The
Company  shall  permit  any  Holder of a Warrant  or his or its duly  authorized
attorney,  upon written request during  ordinary  business hours, to inspect and
copy or make extracts from its books showing the registered Holders of Warrants.
All Warrants will be dated the same date as this Warrant.

               (b) By acceptance hereof, the Holder represents and warrants that
this Warrant is being acquired,  and all Warrant Shares to be purchased upon the
exercise of this Warrant will be acquired,  by the Holder solely for the account
of such  Holder and not with a view to the  fractionalization  and  distribution
thereof  and will  not be sold or  transferred  except  in  accordance  with the
applicable provisions of the Act and the rules and regulations of the Securities
and  Exchange  Commission  promulgated  thereunder,  and the Holder  agrees that
neither  this Warrant nor any of the Warrant  Shares may be sold or  transferred
except under cover of a Registration  Statement under the Act which is effective
and current with respect to such  Warrant  Shares or pursuant to an opinion,  in
form and substance reasonably acceptable to the Company, that registration under
the Act is not required in  connection  with such sale or transfer.  Any Warrant
Shares issued upon exercise of this Warrant shall bear the following legend:

                              "The  Securities  represented by this  certificate
               have not been registered under the Securities Act of 1933 and are
               restricted  securities  (within  the  meaning  of the  rules  and
               regulations promulgated  thereunder).  Such securities may not be
               sold or transferred  except pursuant to a Registration  Statement
               under such Act which is  effective  and current  with  respect to
               such  securities or pursuant to an opinion of counsel  reasonably
               satisfactory  to the Company that such sale or transfer is exempt
               from the registration requirements of such Act."


                                      -13-

<PAGE>



8.             Loss, Etc., of Warrant

               Upon receipt of evidence satisfactory to the Company of the loss,
theft,  destruction or mutilation of this Warrant,  and of indemnity  reasonably
satisfactory to the Company,  if lost,  stolen or destroyed,  and upon surrender
and cancellation of this Warrant,  if mutilated,  and upon  reimbursement of the
Company's reasonable incidental expenses,  the Company shall execute and deliver
to the Holder a new Warrant of like date, tenor and denomination.

9.             Warrant Holder not Shareholder

               Except as otherwise provided herein, this Warrant does not confer
upon the  Holder  any right to vote or to  consent  to or  receive a notice as a
shareholder of the Company,  as such, in respect of any matters  whatsoever,  or
any other rights or liabilities as a shareholder, prior to the exercise hereof.

10.            Communication

               No notice or other  communication  under  this  Warrant  shall be
effective unless, but any notice or other  communication  shall be effective and
shall be deemed to have been given if,  the same is in writing  and is mailed by
first-class mail, postage prepaid, addressed to:

               (a) the Company at 1385 Akron Street, Copiague, New York 11726 or
such other address as the Company has designated in writing to the Holder; or

               (b) the  Holder  at  ___________________________,  or such  other
address as the Holder has designated in writing to the Company.

               All  notices  shall  be  effective  when  mailed  in  the  manner
described  above,  except that  elections  to  exercise  this  Warrant  shall be
effective when received by the Company with proper payment therefor.

11.            Headings

               The headings of this  Warrant  have been  inserted as a matter of
convenience and shall not affect the construction hereof.

12.            Applicable Law

               This Warrant  shall be governed by and  construed  in  accordance
with the laws of the State of New York without  giving effect to the  principles
of conflicts of law thereof.

IN WITNESS WHEREOF, TII INDUSTRIES, INC. has caused this Warrant to be signed by
its President and its corporate seal to be hereunto  affixed and attested by its
Assistant Secretary

                                      -14-

<PAGE>



as of the lst day of September, 1993.


ATTEST:                                   TII INDUSTRIES, INC.


          ___________________________     By:____________________________
          Frances Giambanco,                 Timothy J. Roach
          Assistant Secretary                President


[Corporate Seal]


                                      -15-

<PAGE>



                                  SUBSCRIPTION


The   undersigned,   ______________________________________   pursuant   to  the
provisions  of  Subsection  1(a) of the  foregoing  Warrant,  hereby  agrees  to
subscribe for and purchase __________________________ shares of the Common Stock
of TII INDUSTRIES,  INC. covered by said Warrant,  and makes payment therefor in
full at the price per share provided by said Warrant.

Dated:_______________________                Signature:_________________________

                                             Address:___________________________



                                      -16-

<PAGE>



                                   ASSIGNMENT


               FOR VALUE RECEIVED,  _____________________________________ hereby
sells,  assigns and  transfers  unto  _____________________________________  the
foregoing  Warrant  and all  rights  evidenced  thereby,  and  does  irrevocably
constitute and appoint  _______________________________________  , attorney,  to
transfer said Warrant on the books of TII INDUSTRIES, INC.

Dated:_________________                      Signature:_________________________

                                             Address:___________________________




                               PARTIAL ASSIGNMENT


               FOR   VALUE   RECEIVED,   _______________________________________
hereby  assigns  and  transfers  unto  __________________  the right to purchase
_____________________________________   shares  of  the  Common   Stock  of  TII
INDUSTRIES,  INC. by the foregoing  Warrant,  and a  proportionate  part of said
Warrant and the rights evidenced  hereby,  and does  irrevocably  constitute and
appoint______________,  attorney,  to transfer  that part of said Warrant on the
books of TII INDUSTRIES, INC.

Dated:_________________                      Signature:_________________________

                                             Address:___________________________


                                      -17-

<PAGE>


                       CASHLESS EXERCISE SUBSCRIPTION FORM

               The undersigned, ____________________, pursuant to the provisions
of Subsection 1(b) of the foregoing Warrant,  hereby agrees to subscribe for and
purchase  ______  shares  of the  Common  Stock  of TII  Industries,  Inc.  (the
"Company")  covered by said Warrant,  and makes payment therefor by exchanging a
portion  of such  shares  to pay  the  Aggregate  Warrant  Price  therefor,  and
authorizes  the  Company  to  calculate  the  number of  shares of Common  Stock
issuable following such exchange,  all as determined pursuant to Subsection l(b)
of the foregoing Warrant.

Dated:_________________                      Signature:_________________________

                                             Address:___________________________


                                      -18-




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