PMC SIERRA INC
S-8, EX-4.2, 2000-10-18
SEMICONDUCTORS & RELATED DEVICES
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                             SWITCHON NETWORKS, INC.

                                 1998 STOCK PLAN

                             STOCK OPTION AGREEMENT


         Unless  otherwise  defined herein,  the terms defined in the 1998 Stock
Plan shall have the same defined  meanings in this Stock Option  Agreement  (the
"Option Agreement").
20.      NOTICE OF STOCK OPTION GRANT

        [Name]


         You have  been  granted  an  option  to  purchase  Common  Stock of the
Company,  subject  to the  terms  and  conditions  of the Plan  and this  Option
Agreement, as follows:

         Date of Grant:                     [GrantDate]

         Vesting Commencement Date:         [Vesting]

         Exercise Price per Share:           $[ExercisePrice]

         Total Number of Shares Granted:    [TotalShares]

         Total Exercise Price:              [TotalPrice]

         Type                                of Option: This Option
                                             is an Incentive  Stock
                                             Option  except  to the
                                             extent   that   it  is
                                             exercised as to Shares
                                             that   have   not  yet
                                             vested  at the time of
                                             exercise.    In   such
                                             case, this Option will
                                             convert     into     a
                                             Nonstatutory     Stock
                                             Option for such Shares
                                             that   are   not   yet
                                             vested  at the time of
                                             exercise.

         Term/Expiration Date:              [TermDate]

         Exercise and Vesting Schedule:

         This Option shall be  exercisable  in whole or in part,  and shall vest
according to the following vesting schedule:

         25% of the Shares  subject to the Option shall vest twelve months after
the  Vesting  Commencement  Date,  and 1/48 of the Shares  subject to the Option
shall  vest each month  thereafter,  subject to  Optionee's  continuing  to be a
Service Provider on such dates.

<PAGE>


         Termination Period:

         This  Option may be  exercised,  to the extent it is then  vested,  for
three  months  after  Optionee  ceases to be a Service  Provider.  Upon death or
Disability  of the Optionee,  this Option may be exercised,  to the extent it is
then vested,  for one year after Optionee ceases to be Service  Provider.  In no
event  shall this Option be  exercised  later than the  Term/Expiration  Date as
provided above.


21.       AGREEMENT

         (a) Grant of Option.  The Administrator of the Company hereby grants to
the  Optionee  named in the Notice of Grant  (the  "Optionee"),  an option  (the
"Option") to purchase the number of Shares set forth in the Notice of Grant,  at
the  exercise  price per Share set forth in the Notice of Grant  (the  "Exercise
Price"),  and  subject  to the  terms  and  conditions  of the  Plan,  which  is
incorporated  herein by reference.  Subject to Section 12(c) of the Plan, in the
event of a conflict between the terms and conditions of the Plan and this Option
Agreement, the terms and conditions of the Plan shall prevail.

         If  designated  in the  Notice of Grant as an  Incentive  Stock  Option
("ISO"),  this  Option is intended to qualify as an  Incentive  Stock  Option as
defined in Section 422 of the Code. Nevertheless,  to the extent that it exceeds
the  $100,000  rule of Code  Section  422(d),  this Option shall be treated as a
Nonstatutory Stock Option ("NSO").


         (b)  Exercise of Option.  This Option shall be  exercisable  during its
term in accordance with the provisions of Section 9 of the Plan as follows:

         (i) Right to Exercise.

         (1) Subject to subsections  2(a)(ii) and 2(a)(iii)  below,  this Option
shall be exercisable cumulatively according to the vesting schedule set forth in
the Notice of Grant.  Alternatively,  at the election of the Optionee and if the
Optionee is an  "accredited  investor,"  as such term applies to an  individual,
within the meaning of Regulation D promulgated under the Securities Act of 1933,
as amended,  this Option may be  exercised in whole or in part at any time as to
Shares which have not yet vested.

         (2) Shares  which have not yet vested at the time of  exercise  of this
Option by Optionee  shall be subject to the Company's  repurchase  right (as set
forth in the Restricted  Stock Purchase  Agreement,  attached  hereto as Exhibit
C-1). As a condition to exercising this Option for unvested Shares, the Optionee
shall (A) execute the Restricted  Stock Purchase  Agreement and (B) complete and
execute an Accredited Investor Letter (attached hereto as Exhibit C-6).

         (3) This Option may not be exercised for a fraction of a Share.

         (ii) Method of Exercise.  This Option shall be  exercisable by delivery
of an exercise notice in the form attached as Exhibit A (the "Exercise  Notice")
which shall state the election to exercise the Option, the number of Shares with
respect to which the Option is being exercised,  and such other  representations
and agreements as may be required by the Company.  The Exercise  Notice shall be
accompanied  by  payment of the  aggregate  Exercise  Price as to all  Exercised
Shares.  This Option shall be deemed to be exercised upon receipt by the Company
of such fully executed  Exercise  Notice  accompanied by the aggregate  Exercise
Price.

<PAGE>


         No Shares shall be issued  pursuant to the exercise of an Option unless
such issuance and such exercise  complies with  Applicable  Laws.  Assuming such
compliance,  for income tax purposes the Shares shall be considered  transferred
to the  Optionee on the date on which the Option is  exercised  with  respect to
such Shares.

         (c) Optionee's  Representations.  In the event the Shares have not been
registered under the Securities Act of 1933, as amended, at the time this Option
is exercised, the Optionee shall, if required by the Company,  concurrently with
the exercise of all or any portion of this Option, deliver to the Company his or
her Investment  Representation  Statement in the form attached hereto as Exhibit
B, and shall  read the  applicable  rules of the  Commissioner  of  Corporations
attached to such Investment Representation Statement.

         (d) Lock-Up Period. Optionee hereby agrees that, if so requested by the
Company or any  representative of the underwriters (the "Managing  Underwriter")
in connection  with any  registration  of the offering of any  securities of the
Company under the Securities Act, Optionee shall not sell or otherwise  transfer
any Shares or other securities of the Company during the 180-day period (or such
other  period as may be requested  in writing by the  Managing  Underwriter  and
agreed to in writing by the Company) (the "Market  Standoff  Period")  following
the effective  date of a  registration  statement of the Company filed under the
Securities  Act.  Such  restriction  shall apply only to the first  registration
statement  of the  Company to become  effective  under the  Securities  Act that
includes  securities  to be sold on behalf of the  Company  to the  public in an
underwritten  public  offering under the Securities  Act. The Company may impose
stop-transfer  instructions with respect to securities  subject to the foregoing
restrictions until the end of such Market Standoff Period.

         (e) Method of Payment. Payment of the aggregate Exercise Price shall be
by any of the  following,  or a  combination  thereof,  at the  election  of the
Optionee:

         (i) cash;

         (ii) check;

         (iii)  consideration  received by the Company  under a formal  cashless
exercise program adopted by the Company in connection with the Plan; or

         (iv)  surrender  of  other  Shares  which,  (i) in the  case of  Shares
acquired  upon  exercise of an option,  have been owned by the Optionee for more
than six (6) months on the date of surrender,  and (ii) have a Fair Market Value
on the date of surrender equal to the aggregate  Exercise Price of the Exercised
Shares.

         (f)  Restrictions  on Exercise.  This Option may not be exercised until
such time as the Plan has been approved by the  shareholders of the Company,  or
if the  issuance of such  Shares upon such  exercise or the method of payment of
consideration  for such shares would  constitute  a violation of any  Applicable
Law.

         (g)  Non-Transferability  of Option. This Option may not be transferred
in any manner  otherwise than by will or by the laws of descent or  distribution
and may be exercised during the lifetime of Optionee only by Optionee. The terms
of the Plan and this  Option  Agreement  shall be  binding  upon the  executors,
administrators,  heirs,  successors  and  assigns of the  Optionee.

<PAGE>


         (h) Term of Option.  This Option may be exercised  only within the term
set out in the Notice of Grant,  and may be  exercised  during such term only in
accordance with the Plan and the terms of this Option.

         (i) Tax Consequences. Set forth below is a brief summary as of the date
of this  Option of some of the  federal  tax  consequences  of  exercise of this
Option and  disposition of the Shares.  THIS SUMMARY IS NECESSARILY  INCOMPLETE,
AND THE TAX LAWS AND  REGULATIONS  ARE SUBJECT TO CHANGE.  THE  OPTIONEE  SHOULD
CONSULT A TAX ADVISER BEFORE EXERCISING THIS OPTION OR DISPOSING OF THE SHARES.

         (i)  Exercise  of  NSO.  There  may be a  regular  federal  income  tax
liability  upon the exercise of an NSO.  The Optionee  will be treated as having
received compensation income (taxable at ordinary income tax rates) equal to the
excess,  if any, of the Fair Market Value of the Exercised Shares on the date of
exercise  over the  Exercise  Price.  If  Optionee  is an  Employee  or a former
Employee, the Company will be required to withhold from Optionee's  compensation
or collect from Optionee and pay to the applicable taxing  authorities an amount
in cash  equal  to a  percentage  of this  compensation  income  at the  time of
exercise,  and may refuse to honor the exercise and refuse to deliver  Shares if
such withholding amounts are not delivered at the time of exercise.

         (ii) Exercise of ISO. If this Option qualifies as an ISO, there will be
no regular  federal  income  tax  liability  upon the  exercise  of the  Option,
although the excess, if any, of the Fair Market Value of the Exercised Shares on
the date of exercise over the Exercise Price will be treated as an adjustment to
the  alternative  minimum  tax for  federal  tax  purposes  and may  subject the
Optionee to the alternative minimum tax in the year of exercise.

         (iii) Exercise of ISO Following  Disability.  If the Optionee ceases to
be an Employee  as a result of a  disability  that is not a total and  permanent
disability as defined in Section  22(e)(3) of the Code, to the extent  permitted
on the date of  termination,  the  Optionee  must  exercise an ISO within  three
months of such termination for the ISO to be qualified as an ISO.

         (iv)  Disposition of Shares.  In the case of an NSO, if Shares are held
for at least one year,  any gain realized on  disposition  of the Shares will be
treated as long-term  capital gain for federal income tax purposes.  In the case
of an ISO,  if Shares  transferred  pursuant to the Option are held for at least
one year after exercise and at least two years after the Date of Grant, any gain
realized on disposition of the Shares will also be treated as long-term  capital
gain for  federal  income tax  purposes.  If Shares  purchased  under an ISO are
disposed of within one year after exercise or two years after the Date of Grant,
any gain realized on such  disposition  will be treated as  compensation  income
(taxable at ordinary  income rates) to the extent of the difference  between the
Exercise  Price of the  Exercised  Shares and the lesser of (i) the Fair  Market
Value of the Exercised Shares on the date of exercise, or (ii) the sale price of
the Exercised  Shares.  Different rules may apply if the Shares are subject to a
substantial risk of forfeiture (within the meaning of Section 83 of the Code) at
the time of  purchase.  Any  additional  gain  will be taxed  as  capital  gain,
short-term depending on the period that the ISO Shares were held.

         (v) Notice of  Disqualifying  Disposition of ISO Shares.  If the Option
granted  to  Optionee  herein  is an ISO,  and if  Optionee  sells or  otherwise
disposes  of any of the  Shares  acquired  pursuant  to the ISO on or before the
later of (i) the date two years  after  the Date of Grant,  or (ii) the date one
year after the date of  exercise,  the  Optionee  shall  immediately  notify the
Company in writing of such  disposition.  Optionee  agrees that  Optionee may be
subject to income tax  withholding  by the  Company on the  compensation  income
recognized by the  Optionee.

<PAGE>


         (vi) Section 83(b) Election for Unvested Shares  Purchased  Pursuant to
Options.  With  respect to the  exercise of an Option for  unvested  Shares,  an
election (the "Election") may be filed by the Optionee with the Internal Revenue
Service,  within 30 days of the  purchase  of the Shares,  electing  pursuant to
Section 83(b) of the Code to be taxed  currently on any  difference  between the
purchase  price  of the  Shares  and  their  Fair  Market  Value  on the date of
purchase.  In the case of an NSO, this will result in a  recognition  of taxable
income to the Optionee on the date of exercise,  measured by the excess, if any,
of the Fair  Market  Value of the  Exercised  Shares,  at the time the Option is
exercised  over the  purchase  price for the  Exercised  Shares.  Absent such an
election, taxable income will be measured and recognized by Optionee at the time
or times on which the Company's Repurchase Option lapses. In the case of an ISO,
such an election  will result in a  recognition  of income to the  Optionee  for
alternative  minimum  tax  purposes  on the date of  exercise,  measured  by the
excess,  if any, of the Fair Market Value of the Exercised  Shares,  at the time
the Option is  exercised,  over the  purchase  price for the  Exercised  Shares.
Absent such an election, alternative minimum taxable income will be measured and
recognized  by Optionee at the time or times on which the  Company's  Repurchase
Option lapses.  Optionee is strongly encouraged to seek the advice of his or her
own tax  consultants  in  connection  with the  purchase  of the  Shares and the
advisability  of filing of the Election  under Section 83(b) of the Code. A form
of Election under Section 83(b) is attached hereto as Exhibit C-5 for reference.

         OPTIONEE ACKNOWLEDGES THAT IT IS OPTIONEE'S SOLE RESPONSIBILITY AND NOT
THE COMPANY'S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b),  EVEN IF OPTIONEE
REQUESTS  THE COMPANY OR ITS  REPRESENTATIVE  TO MAKE THIS FILING ON  OPTIONEE'S
BEHALF.

         (j) Entire Agreement; Governing Law. The Plan is incorporated herein by
reference. The Plan and this Option Agreement constitute the entire agreement of
the parties with  respect to the subject  matter  hereof and  supersede in their
entirety all prior  undertakings and agreements of the Company and Optionee with
respect to the subject matter hereof,  and may not be modified  adversely to the
Optionee's  interest  except by means of a writing  signed  by the  Company  and
Optionee. This Option Agreement is governed by the internal substantive laws but
not the choice of law rules of California.

         (k) No Guarantee of Continued Service. OPTIONEE ACKNOWLEDGES AND AGREES
THAT THE VESTING OF SHARES  PURSUANT TO THE  VESTING  SCHEDULE  HEREOF IS EARNED
ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (NOT THROUGH
THE  ACT  OF  BEING  HIRED,  BEING  GRANTED  THIS  OPTION  OR  ACQUIRING  SHARES
HEREUNDER).  OPTIONEE FURTHER  ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT,  THE
TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO
NOT  CONSTITUTE  AN EXPRESS OR IMPLIED  PROMISE  OF  CONTINUED  ENGAGEMENT  AS A
SERVICE  PROVIDER FOR THE VESTING PERIOD,  FOR ANY PERIOD,  OR AT ALL, AND SHALL
NOT  INTERFERE  IN ANY WAY  WITH  OPTIONEE'S  RIGHT  OR THE  COMPANY'S  RIGHT TO
TERMINATE  OPTIONEE'S  RELATIONSHIP  AS A SERVICE  PROVIDER AT ANY TIME, WITH OR
WITHOUT CAUSE.

<PAGE>


         Optionee acknowledges receipt of a copy of the Plan and represents that
he or she is familiar with the terms and provisions thereof,  and hereby accepts
this Option  subject to all of the terms and  provisions  thereof.  Optionee has
reviewed the Plan and this Option in their  entirety,  has had an opportunity to
obtain  the  advice  of  counsel  prior  to  executing  this  Option  and  fully
understands  all provisions of the Option.  Optionee  hereby agrees to accept as
binding,   conclusive  and  final  all  decisions  or   interpretations  of  the
Administrator upon any questions arising under the Plan or this Option. Optionee
further  agrees to notify the Company upon any change in the  residence  address
indicated below.

OPTIONEE                                  SWITCHON NETWORKS, INC.


-------------------------------------     ----------------------
Signature                                 By

                                          President & CEO
-------------------------------------     -----------------------
[Name]                                    Title


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

-------------------------------------
Residence Address



<PAGE>



                                    EXHIBIT A

                                 1998 Stock Plan

                                 EXERCISE NOTICE

SwitchOn Networks, Inc.
830 Hillview Court, Suite 190
Milpitas, CA 95035

Attention:  Chief Financial Officer


1. Exercise of Option. Effective as of today, ___________, ____, the undersigned
("Optionee")  hereby  elects to exercise  Optionee's  option (the  "Option")  to
purchase  _________  shares of the  Common  Stock  (the  "Shares")  of  SwitchOn
Networks,  Inc. (the  "Company")  under and pursuant to the 1998 Stock Plan (the
"Plan")  and the  Stock  Option  Agreement  dated  ________,  ___  (the  "Option
Agreement").

2.       Delivery of  Payment.  Purchaser  herewith  delivers to the Company the
full purchase price of the Shares, as set forth in the Option Agreement.

3.       Representations  of Optionee.  Optionee  acknowledges that Optionee has
received,  read and understood  the Plan and the Option  Agreement and agrees to
abide by and be bound by their terms and conditions.

4.       Rights as  Shareholder.  Until the issuance of the Shares (as evidenced
by the  appropriate  entry on the books of the  Company or of a duly  authorized
transfer  agent of the  Company),  no right to vote or receive  dividends or any
other rights as a  shareholder  shall exist with respect to the optioned  stock,
notwithstanding  the  exercise of the Option.  The Shares shall be issued to the
Optionee as soon as  practicable  after the Option is  exercised.  No adjustment
shall be made for a dividend  or other  right for which the record date is prior
to the date of issuance except as provided in Section 12 of the Plan.

5.       Company's Right of First Refusal. Before any Shares held by Optionee or
any transferee  (either being sometimes  referred to herein as the "Holder") may
be sold or  otherwise  transferred  (including  transfer by gift or operation of
law),  the  Company or its  assignee(s)  shall have a right of first  refusal to
purchase the Shares on the terms and  conditions  set forth in this Section (the
"Right of First Refusal").

         (a) Notice of Proposed Transfer. The Holder of the Shares shall deliver
to the Company a written  notice (the "Notice")  stating:  (i) the Holder's bona
fide intention to sell or otherwise transfer such Shares;  (ii) the name of each
proposed purchaser or other transferee ("Proposed Transferee"); (iii) the number
of Shares to be transferred to each Proposed Transferee;  and (iv) the bona fide
cash price or other  consideration for which the Holder proposes to transfer the
Shares  (the  "Offered  Price"),  and the Holder  shall  offer the Shares at the
Offered Price to the Company or its assignee(s).

         (b) Exercise of Right of First Refusal.  At any time within thirty (30)
days after receipt of the Notice,  the Company  and/or its  assignee(s)  may, by
giving  written  notice to the Holder,  elect to purchase all, but not less than
all, of the Shares proposed to be transferred to any one or more of the Proposed
Transferees,  at the purchase price determined in accordance with subsection (c)
below.

<PAGE>


         (c) Purchase  Price.  The  purchase  price  ("Purchase  Price") for the
Shares  purchased by the Company or its assignee(s)  under this Section shall be
the Offered Price. If the Offered Price includes  consideration other than cash,
the cash equivalent value of the non-cash  consideration  shall be determined by
the Board of Directors of the Company in good faith.

         (d) Payment. Payment of the Purchase Price shall be made, at the option
of the Company or its assignee(s), in cash (by check), by cancellation of all or
a portion of any  outstanding  indebtedness of the Holder to the Company (or, in
the case of repurchase by an assignee,  to the assignee),  or by any combination
thereof  within 30 days after  receipt of the Notice or in the manner and at the
times set forth in the Notice.

         (e) Holder's  Right to Transfer.  If all of the Shares  proposed in the
Notice to be transferred to a given Proposed Transferee are not purchased by the
Company and/or its assignee(s) as provided in this Section,  then the Holder may
sell or  otherwise  transfer  such  Shares to that  Proposed  Transferee  at the
Offered Price or at a higher price, provided that such sale or other transfer is
consummated within 120 days after the date of the Notice,  that any such sale or
other transfer is effected in accordance with any applicable securities laws and
that the  Proposed  Transferee  agrees in writing  that the  provisions  of this
Section  shall  continue  to apply to the  Shares in the hands of such  Proposed
Transferee.  If the Shares  described in the Notice are not  transferred  to the
Proposed  Transferee  within  such  period,  a new Notice  shall be given to the
Company,  and the Company and/or its assignees  shall again be offered the Right
of First  Refusal  before any Shares held by the Holder may be sold or otherwise
transferred.

         (f) Exception for Certain  Family  Transfers.  Anything to the contrary
contained  in this  Section  notwithstanding,  the transfer of any or all of the
Shares  during the  Optionee's  lifetime or on the  Optionee's  death by will or
intestacy to the Optionee's  immediate  family or a trust for the benefit of the
Optionee's immediate family shall be exempt from the provisions of this Section.
"Immediate  Family" as used  herein  shall mean  spouse,  lineal  descendant  or
antecedent,  father,  mother, brother or sister. In such case, the transferee or
other recipient shall receive and hold the Shares so transferred  subject to the
provisions  of this  Section,  and there  shall be no further  transfer  of such
Shares except in accordance with the terms of this Section.

         (g)  Termination of Right of First Refusal.  The Right of First Refusal
shall  terminate  as to any Shares  upon the first  sale of Common  Stock of the
Company to the general public  pursuant to a registration  statement  filed with
and declared  effective by the  Securities  and  Exchange  Commission  under the
Securities Act of 1933, as amended.

6.       Tax Consultation. Optionee understands that Optionee may suffer adverse
tax  consequences  as a result of  Optionee's  purchase  or  disposition  of the
Shares. Optionee represents that Optionee has consulted with any tax consultants
Optionee deems  advisable in connection  with the purchase or disposition of the
Shares and that Optionee is not relying on the Company for any tax advice.

<PAGE>

7.       Restrictive Legends and Stop-Transfer Orders.

         (a) Legends.  Optionee  understands  and agrees that the Company  shall
cause the legends set forth below or legends  substantially  equivalent thereto,
to be placed upon any certificate(s) evidencing ownership of the Shares together
with any  other  legends  that may be  required  by the  Company  or by state or
federal securities laws:

                  THE  SECURITIES  REPRESENTED  HEREBY HAVE NOT BEEN  REGISTERED
                  UNDER THE  SECURITIES  ACT OF 1933 (THE  "ACT") AND MAY NOT BE
                  OFFERED,   SOLD   OR   OTHERWISE   TRANSFERRED,   PLEDGED   OR
                  HYPOTHECATED  UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN
                  THE OPINION OF COMPANY  COUNSEL  SATISFACTORY TO THE ISSUER OF
                  THESE  SECURITIES,  SUCH OFFER,  SALE OR  TRANSFER,  PLEDGE OR
                  HYPOTHECATION IS IN COMPLIANCE THEREWITH.

                  THE SHARES  REPRESENTED  BY THIS  CERTIFICATE  ARE  SUBJECT TO
                  CERTAIN  RESTRICTIONS  ON TRANSFER AND RIGHT OF FIRST  REFUSAL
                  OPTIONS HELD BY THE ISSUER OR ITS  ASSIGNEE(S) AS SET FORTH IN
                  THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER
                  OF  THESE  SHARES,  A COPY OF  WHICH  MAY BE  OBTAINED  AT THE
                  PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND
                  RIGHT OF FIRST  REFUSAL  ARE BINDING ON  TRANSFEREES  OF THESE
                  SHARES.

                  IT IS  UNLAWFUL  TO  CONSUMMATE  A SALE  OR  TRANSFER  OF THIS
                  SECURITY,   OR  ANY  INTEREST  THEREIN,   OR  TO  RECEIVE  ANY
                  CONSIDERATION  THEREFOR,  WITHOUT THE PRIOR WRITTEN CONSENT OF
                  THE  COMMISSIONER  OF CORPORATIONS OF THE STATE OF CALIFORNIA,
                  EXCEPT AS PERMITTED IN THE COMMISSIONER'S RULES.

         Optionee  understands  that transfer of the Shares may be restricted by
Section 260.141.11 of the Rules of the California Corporations  Commissioner,  a
copy of which is attached to Exhibit B, the Investment Representation Statement.

         (b)  Stop-Transfer  Notices.  Optionee  agrees that, in order to ensure
compliance  with the  restrictions  referred  to herein,  the  Company may issue
appropriate  "stop  transfer"  instructions  to its transfer  agent, if any, and
that,  if the Company  transfers  its own  securities,  it may make  appropriate
notations to the same effect in its own records.

         (c)  Refusal to  Transfer.  The Company  shall not be  required  (i) to
transfer on its books any Shares that have been sold or otherwise transferred in
violation of any of the  provisions of this Exercise  Notice or (ii) to treat as
owner of such  Shares or to accord  the  right to vote or pay  dividends  to any
purchaser  or  other   transferee  to  whom  such  Shares  shall  have  been  so
transferred.

8.       Successors and Assigns.  The Company may assign any of its rights under
this  Exercise  Notice  to  single  or  multiple  assignees,  and the  terms and
conditions of this Exercise  Notice shall inure to the benefit of the successors
and assigns of the Company.  Subject to the  restrictions on transfer herein set
forth,  the terms and  conditions of this Exercise  Notice shall be binding upon
Optionee  and  his or  her  heirs,  executors,  administrators,  successors  and
assigns.

9.       Interpretation.  Any  dispute  regarding  the  interpretation  of  this
Exercise  Notice shall be  submitted by Optionee or by the Company  forthwith to
the  Administrator  which shall review such dispute at its next regular meeting.
The resolution of such a dispute by the Administrator shall be final and binding
on all  parties.

<PAGE>


10.      Governing Law;  Severability.  This Exercise  Notice is governed by the
internal substantive laws, but not the choice of law rules, of California.

11.      Entire Agreement. The Plan and Option Agreement are incorporated herein
by reference.  This Exercise  Notice,  the Plan, the  Restricted  Stock Purchase
Agreement,  the Option  Agreement and the  Investment  Representation  Statement
constitute  the entire  agreement  of the  parties  with  respect to the subject
matter  hereof  and  supersede  in their  entirety  all prior  undertakings  and
agreements  of the  Company and  Optionee  with  respect to the  subject  matter
hereof, and may not be modified  adversely to the Optionee's  interest except by
means of a writing signed by the Company and Optionee.



<PAGE>



Submitted by:                                 Accepted by:

OPTIONEE:                                     SWITCHON NETWORKS, INC.

--------------------------------------        --------------------------------
Signature                                     By

--------------------------------------        --------------------------------
[Name]                                        Its

Address:                                      Address:
-------                                       -------

                                              SwitchOn Networks, Inc.
--------------------------------------
                                              830 Hillview Court, Suite 190
                                              Milpitas, CA 95035
--------------------------------------

                                                   Date Received


<PAGE>



                                    EXHIBIT B

                       INVESTMENT REPRESENTATION STATEMENT

OPTIONEE:                 [Name]

COMPANY:                  SWITCHON NETWORKS, INC.

SECURITY:                 COMMON STOCK

AMOUNT:                   [TotalShares]

DATE:

         In connection  with the purchase of the  above-listed  Securities,  the
undersigned Optionee represents to the Company the following:

         (a) Optionee is aware of the Company's  business  affairs and financial
condition and has acquired sufficient  information about the Company to reach an
informed  and  knowledgeable  decision  to acquire the  Securities.  Optionee is
acquiring  these  Securities  for investment for Optionee's own account only and
not with a view to, or for resale in connection with, any "distribution" thereof
within the meaning of the  Securities  Act of 1933, as amended (the  "Securities
Act").

         (b)  Optionee   acknowledges   and  understands   that  the  Securities
constitute  "restricted  securities"  under the Securities Act and have not been
registered  under the  Securities  Act in  reliance  upon a  specific  exemption
therefrom,  which  exemption  depends upon,  among other  things,  the bona fide
nature of Optionee's  investment intent as expressed herein. In this connection,
Optionee   understands  that,  in  the  view  of  the  Securities  and  Exchange
Commission,  the  statutory  basis  for such  exemption  may be  unavailable  if
Optionee's representation was predicated solely upon a present intention to hold
these  Securities  for the minimum  capital  gains  period  specified  under tax
statutes,  for a deferred  sale,  for or until an  increase  or  decrease in the
market price of the  Securities,  or for a period of one year or any other fixed
period in the future.  Optionee further  understands that the Securities must be
held indefinitely  unless they are subsequently  registered under the Securities
Act or an  exemption  from such  registration  is  available.  Optionee  further
acknowledges and understands that the Company is under no obligation to register
the  Securities.  Optionee  understands  that  the  certificate  evidencing  the
Securities  will be imprinted with a legend which  prohibits the transfer of the
Securities  unless they are registered or such  registration  is not required in
the opinion of counsel  satisfactory to the Company,  a legend prohibiting their
transfer without the consent of the Commissioner of Corporations of the State of
California and with any other legend required under  applicable state securities
laws.

         (c) Optionee is familiar with the  provisions of Rule 701 and Rule 144,
each promulgated  under the Securities Act, which, in substance,  permit limited
public resale of "restricted  securities" acquired,  directly or indirectly from
the issuer  thereof,  in a non-public  offering  subject to the  satisfaction of
certain  conditions.  Rule 701 provides that if the issuer  qualifies under Rule
701 at the time of the grant of the Option to the Optionee, the exercise will be
exempt  from  registration  under the  Securities  Act. In the event the Company
becomes  subject  to the  reporting  requirements  of Section 13 or 15(d) of the
Securities  Exchange Act of 1934,  ninety (90) days  thereafter  (or such longer
period as any market  stand-off  agreement  may require) the  Securities  exempt
under Rule 701 may be  resold,  subject  to the  satisfaction  of certain of the
conditions specified by Rule 144, including: (1) the resale being made through a
broker in an unsolicited "broker's transaction" or in transactions directly with
a market  maker (as said term is defined  under the  Securities  Exchange Act of
1934); and, in the case of an affiliate,  (2) the availability of certain public
information  about the Company,  (3) the amount of Securities  being sold during
any three month period not exceeding the  limitations  specified in Rule 144(e),
and (4) the timely filing of a Form 144, if applicable.

<PAGE>


         In the event that the Company  does not  qualify  under Rule 701 at the
time of grant of the  Option,  then the  Securities  may be  resold  in  certain
limited  circumstances subject to the provisions of Rule 144, which requires the
resale  to  occur  not  less  than  one  year  after  the  later of the date the
Securities  were sold by the Company or the date the Securities  were sold by an
affiliate  of the Company,  within the meaning of Rule 144;  and, in the case of
acquisition  of  the  Securities  by an  affiliate,  or by a  non-affiliate  who
subsequently  holds the Securities less than two years,  the satisfaction of the
conditions  set  forth  in  sections  (1),  (2),  (3) and  (4) of the  paragraph
immediately above.

         (d)  Optionee  further  understands  that  in  the  event  all  of  the
applicable requirements of Rule 701 or 144 are not satisfied, registration under
the Securities Act,  compliance  with  Regulation A, or some other  registration
exemption will be required;  and that,  notwithstanding  the fact that Rules 144
and 701 are not exclusive,  the Staff of the Securities and Exchange  Commission
has  expressed  its opinion  that persons  proposing  to sell private  placement
securities  other than in a registered  offering and otherwise  than pursuant to
Rules 144 or 701 will have a substantial burden of proof in establishing that an
exemption from registration is available for such offers or sales, and that such
persons and their respective  brokers who participate in such transactions do so
at their own risk. Optionee understands that no assurances can be given that any
such other registration exemption will be available in such event.

         (e)  Optionee  agrees  that,  if so  requested  by the  Company  or any
representative  of the underwriters  (the "Managing  Underwriter") in connection
with any registration of the offering of any securities of the Company under the
Securities Act,  Optionee shall not sell or otherwise  transfer any of the above
listed  Securities or other  securities of the Company during the 180-day period
(or such other period as may be requested in writing by the Managing Underwriter
and  agreed  to in  writing  by the  Company)  (the  "Market  Standoff  Period")
following the effective  date of a  registration  statement of the Company filed
under  the  Securities  Act.  Such  restriction  shall  apply  only to the first
registration  statement of the Company to become  effective under the Securities
Act that  includes  securities to be sold on behalf of the Company to the public
in an  underwritten  public  offering under the Securities  Act. The Company may
impose  stop-transfer  instructions  with respect to  securities  subject to the
foregoing restrictions until the end of such Market Standoff Period.

         (f) Optionee understands that the certificate evidencing the Securities
will be imprinted  with a legend which  prohibits the transfer of the Securities
without the consent of the Commissioner of Corporations of California.  Optionee
has read the applicable Commissioner's Rules with respect to such restriction, a
copy of which is attached.

                                    Signature of Optionee:


                                    ------------------------
                                    Date:


<PAGE>


                                  ATTACHMENT 1
              STATE OF CALIFORNIA - CALIFORNIA ADMINISTRATIVE CODE
         Title 10. Investment - Chapter 3. Commissioner of Corporations

         260.141.11:  Restriction  on  Transfer.

         (a) The issuer of any security upon which a restriction on transfer has
         been  imposed  pursuant to Sections  260.102.6,  260.141.10  or 260.534
         shall cause a copy of this  section to be  delivered  to each issuee or
         transferee of such security at the time the certificate  evidencing the
         security is delivered to the issuee or transferee.

         (b) It is unlawful for the holder of any such  security to consummate a
         sale or transfer of such security, or any interest therein, without the
         prior  written  consent of the  Commissioner  (until this  condition is
         removed pursuant to  Section 260.141.12 of these rules), except:
         (1)      to the issuer;
         (2)      pursuant to the order or process of any court;
         (3) to any person  described in Subdivision (i) of Section 25102 of the
         Code or Section  260.105.14  of these  rules;
         (4)  to the  transferor's  ancestors,  descendants  or  spouse,  or any
         custodian  or  trustee  for  the  account  of  the  transferor  or  the
         transferor's ancestors, descendants, or spouse; or to a transferee by a
         trustee  or  custodian  for  the  account  of  the  transferee  or  the
         transferee's ancestors, descendants or spouse;
         (5)      to holders of securities of the same class of the same issuer;
         (6)      by way of gift or donation inter vivos or on death;
         (7) by or  through a  broker-dealer  licensed  under  the Code  (either
         acting  as such or as a  finder)  to a  resident  of a  foreign  state,
         territory  or  country  who is neither  domiciled  in this state to the
         knowledge of the  broker-dealer,  nor actually present in this state if
         the sale of such  securities is not in violation of any  securities law
         of the foreign state, territory or country concerned;
         (8)  to  a  broker-dealer  licensed  under  the  Code  in  a  principal
         transaction,  or  as  an  underwriter  or  member  of  an  underwriting
         syndicate or selling group;
         (9) if the interest sold or transferred is a pledge or other lien given
         by the  purchaser  to the seller upon a sale of the  security for which
         the  Commissioner's  written consent is obtained or under this rule not
         required;
         (10) by way of a sale qualified under Sections 25111,  25112,  25113 or
         25121 of the Code, of the securities to be  transferred,  provided that
         no order under Section 25140 or subdivision  (a) of Section 25143 is in
         effect with respect to such qualification;
         (11) by a corporation to a wholly owned subsidiary of such corporation,
         or by a wholly owned subsidiary of a corporation to such corporation;
         (12) by way of an exchange  qualified  under  Section  25111,  25112 or
         25113 of the  Code,  provided  that no  order  under  Section  25140 or
         subdivision  (a) of  Section  25143 is in effect  with  respect to such
         qualification;
         (13) between residents of foreign states,  territories or countries who
         are neither domiciled nor actually present in this state;
         (14) to the State Controller  pursuant to the Unclaimed Property Law or
         to the administrator of the unclaimed property law of another state; or
         (15) by the State Controller  pursuant to the Unclaimed Property Law or
         by the administrator of the unclaimed property law of another state if,
         in either such case, such person (i) discloses to potential  purchasers
         at the sale that transfer of the  securities  is restricted  under this
         rule,  (ii) delivers to each  purchaser a copy of this rule,  and (iii)
         advises the Commissioner of the name of each purchaser;
         (16) by a trustee to a successor  trustee when such  transfer  does not
         involve a change in the beneficial ownership of the securities;
         (17) by way of an offer and sale of outstanding securities in an issuer
         transaction that is subject to the qualification requirement of Section
         25110 of the Code but exempt  from that  qualification  requirement  by
         subdivision (f) of Section 25102; provided that any such transfer is on
         the condition that any  certificate  evidencing the security  issued to
         such transferee shall contain the legend required by this section.
         (c)The certificates  representing all such securities subject to such a
         restriction  on transfer,  whether  upon  initial  issuance or upon any
         transfer  thereof,  shall  bear on  their  face a  legend,  prominently
         stamped or printed thereon in capital letters of not less than 10-point
         size, reading as follows:

"IT IS  UNLAWFUL TO  CONSUMMATE  A SALE OR  TRANSFER  OF THIS  SECURITY,  OR ANY
INTEREST THEREIN,  OR TO RECEIVE ANY CONSIDERATION  THEREFOR,  WITHOUT THE PRIOR
WRITTEN CONSENT OF THE  COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA,
EXCEPT AS PERMITTED IN THE COMMISSIONER'S RULES."



<PAGE>



                                   EXHIBIT C-1

                             SWITCHON NETWORKS, INC.
                                 1998 Stock Plan
                       RESTRICTED STOCK PURCHASE AGREEMENT


         THIS  AGREEMENT is made between [Name] (the  "Purchaser")  and SwitchOn
Networks, Inc. (the "Company") as of ------------------, -------.

         Unless  otherwise  defined herein,  the terms defined in the 1998 Stock
Plan shall have the same defined meanings in this Agreement.

                                    RECITALS

         A.  Pursuant to the exercise of the option  granted to Purchaser  under
the Plan and pursuant to the Option  Agreement dated  ___________ by and between
the Company and Purchaser with respect to such grant (the "Option"),  which Plan
and Option Agreement are hereby incorporated by reference, Purchaser has elected
to  purchase  _________  of those  shares of Common  Stock which have not become
vested under the vesting schedule set forth in the Option  Agreement  ("Unvested
Shares").  The Unvested  Shares and the shares  subject to the Option  Agreement
which have become  vested are sometimes  collectively  referred to herein as the
"Shares".

         B. As required by the Option  Agreement,  as a condition to Purchaser's
election to exercise the option,  Purchaser must execute this  Agreement,  which
sets forth the rights and  obligations  of the  parties  with  respect to Shares
acquired upon exercise of the Option.

1.       Repurchase Option.

         (a) If Purchaser's  status as a Service  Provider is terminated for any
reason,  including for cause, death, and Disability,  the Company shall have the
right  and  option  to  purchase  from   Purchaser,   or  Purchaser's   personal
representative, as the case may be, all of the Purchaser's Unvested Shares as of
the date of such  termination at the price paid by the Purchaser for such Shares
(the "Repurchase Option").

         (b) Upon the occurrence of such  termination,  the Company may exercise
its  Repurchase  Option by  delivering  personally  or by  registered  mail,  to
Purchaser  (or his  transferee  or  legal  representative,  as the case may be),
within ninety (90) days of the termination,  a notice in writing  indicating the
Company's  intention to exercise the Repurchase  Option and setting forth a date
for closing not later than thirty (30) days from the mailing of such notice. The
closing shall take place at the Company's office. At the closing,  the holder of
the  certificates  for the Unvested Shares being  transferred  shall deliver the
stock  certificate  or  certificates  evidencing  the Unvested  Shares,  and the
Company shall deliver the purchase price therefor.

         (c) At its  option,  the  Company  may  elect to make  payment  for the
Unvested  Shares to a bank  selected by the  Company.  The  Company  shall avail
itself of this option by a notice in writing to  Purchaser  stating the name and
address of the bank,  date of closing,  and waiving the closing at the Company's
office.

         (d) If the Company  does not elect to exercise  the  Repurchase  Option
conferred above by giving the requisite notice within ninety (90) days following
the termination, the Repurchase Option shall terminate.

         (e) The  Repurchase  Option  shall  terminate  in  accordance  with the
vesting schedule contained in Optionee's Option Agreement.

2.       Transferability of the Shares; Escrow.

         (a)  Purchaser  hereby  authorizes  and  directs the  Secretary  of the
Company,  or such other  person  designated  by the  Company,  to  transfer  the
Unvested  Shares as to which  the  Repurchase  Option  has been  exercised  from
Purchaser to the Company.

         (b) To insure the  availability  for delivery of  Purchaser's  Unvested
Shares upon  repurchase by the Company  pursuant to the Repurchase  Option under
Section  1,  Purchaser  hereby  appoints  the  Secretary,  or any  other  person
designated  by the Company as escrow  agent,  as its  attorney-in-fact  to sell,
assign and transfer unto the Company,  such Unvested Shares, if any, repurchased
by the Company  pursuant to the Repurchase  Option and shall,  upon execution of
this Agreement,  deliver and deposit with the Secretary of the Company,  or such
other person designated by the Company, the share certificates  representing the
Unvested  Shares,  together  with the stock  assignment  duly endorsed in blank,
attached hereto as Exhibit C-2. The Unvested Shares and stock  assignment  shall
be held by the secretary in escrow, pursuant to the Joint Escrow Instructions of
the Company  and  Purchaser  attached  as Exhibit C-3 hereto,  until the Company
exercises its Repurchase Option, until such Unvested Shares are vested, or until
such time as this  Agreement no longer is in effect.  As a further  condition to
the Company's obligations under this Agreement,  the spouse of the Purchaser, if
any,  shall  execute and  deliver to the Company the Consent of Spouse  attached
hereto as Exhibit C-4.  Upon vesting of the  Unvested  Shares,  the escrow agent
shall  promptly  deliver  to  the  Purchaser  the  certificate  or  certificates
representing  such  Shares in the escrow  agent's  possession  belonging  to the
Purchaser,  and the escrow agent shall be discharged of all further  obligations
hereunder;  provided,  however,  that the escrow agent shall nevertheless retain
such  certificate  or  certificates  as escrow agent if so required  pursuant to
other restrictions imposed pursuant to this Agreement.

         (c) The Company,  or its  designee,  shall not be liable for any act it
may do or omit to do with  respect  to  holding  the  Shares in escrow and while
acting in good faith and in the exercise of its judgment.

         (d)  Transfer  or sale of the  Shares is  subject  to  restrictions  on
transfer  imposed by any  applicable  state and  federal  securities  laws.  Any
transferee  shall hold such Shares subject to all the provisions  hereof and the
Exercise  Notice  executed by the Purchaser with respect to any Unvested  Shares
purchased by Purchaser and shall  acknowledge the same by signing a copy of this
Agreement.


3.       Ownership,  Voting Rights,  Duties.  This Agreement shall not affect in
any way the  ownership,  voting  rights or other rights or duties of  Purchaser,
except as specifically provided herein.

4.       Legends.  The share certificate  evidencing the Shares issued hereunder
shall be endorsed with the following  legend (in addition to any legend required
under applicable federal and state securities laws):

         THE  SHARES  REPRESENTED  BY THIS  CERTIFICATE  ARE  SUBJECT TO CERTAIN
RESTRICTIONS UPON TRANSFER AND RIGHTS OF REPURCHASE AS SET FORTH IN AN AGREEMENT
BETWEEN  THE COMPANY  AND THE  STOCKHOLDER,  A COPY OF WHICH IS ON FILE WITH THE
SECRETARY OF THE COMPANY.
<PAGE>



5.       Adjustment for Stock Split.  All references to the number of Shares and
the  purchase  price of the  Shares  in this  Agreement  shall be  appropriately
adjusted  to reflect any stock  split,  stock  dividend  or other  change in the
Shares which may be made by the Company pursuant to Section 12 of the Plan after
the date of this Agreement.


6.       Notices.  Notices  required  hereunder  shall be given in  person or by
registered mail to the address of Purchaser shown on the records of the Company,
and to the Company at their respective principal executive offices.


7.       Survival of Terms. This Agreement shall apply to and bind Purchaser and
the Company and their respective  permitted  assignees and  transferees,  heirs,
legatees, executors, administrators and legal successors.

8.       Section 83(b) Election.  Purchaser hereby  acknowledges  that he or she
has been informed  that,  with respect to the exercise of an Option for Unvested
Shares,  an election (the  "Election")  may be filed by the  Purchaser  with the
Internal  Revenue  Service,  within  30 days of the  purchase  of the  exercised
Shares,  electing pursuant to Section 83(b) of the Code to be taxed currently on
any difference between the purchase price of the exercised Shares and their Fair
Market  Value  on the date of  purchase.  In the  case of a  Nonstatutory  Stock
Option,  this will result in a recognition of taxable income to the Purchaser on
the date of exercise,  measured by the excess,  if any, of the Fair Market Value
of the exercised  Shares,  at the time the Option is exercised over the purchase
price for the exercised Shares. Absent such an Election,  taxable income will be
measured and recognized by Purchaser at the time or times on which the Company's
Repurchase  Option  lapses.  In the case of an Incentive  Stock Option,  such an
Election will result in a recognition of income to the Purchaser for alternative
minimum tax purposes on the date of exercise, measured by the excess, if any, of
the Fair  Market  Value of the  exercised  Shares,  at the  time the  option  is
exercised,  over the purchase  price for the  exercised  Shares.  Absent such an
Election,  alternative minimum taxable income will be measured and recognized by
Purchaser at the time or times on which the Company's  Repurchase Option lapses.
Purchaser  is  strongly  encouraged  to seek  the  advice  of his or her own tax
consultants in connection  with the purchase of the Shares and the  advisability
of filing of the Election  under  Section  83(b) of the Code. A form of Election
under Section 83(b) is attached hereto as Exhibit C-5 for reference.

         PURCHASER  ACKNOWLEDGES THAT IT IS PURCHASER'S SOLE  RESPONSIBILITY AND
NOT THE  COMPANY'S TO FILE TIMELY THE ELECTION  UNDER SECTION 83(b) OF THE CODE,
EVEN IF PURCHASER REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING
ON PURCHASER'S BEHALF.


9.       Representations.  Purchaser  has reviewed with his own tax advisors the
federal,  state,  local and foreign tax  consequences of this investment and the
transactions contemplated by this Agreement. Purchaser is relying solely on such
advisors and not on any statements or  representations  of the Company or any of
its  agents.  Purchaser  understands  that he (and  not the  Company)  shall  be
responsible  for his own tax  liability  that  may  arise  as a  result  of this
investment or the transactions contemplated by this Agreement.

10.      Governing  Law.  This  Agreement  shall  be  governed  by the  internal
substantive laws, but not the choice of law rules, of California.

         Purchaser  represents  that he has read this  Agreement and is familiar
with its terms and  provisions.  Purchaser  hereby  agrees to accept as binding,
conclusive  and final all  decisions  or  interpretations  of the Board upon any
questions arising under this Agreement.

         IN WITNESS WHEREOF,  this Agreement is deemed made as of the date first
set forth above.

OPTIONEE                                  SWITCHON NETWORKS, INC.


-------------------------------------     ----------------------
Signature                                 By

-------------------------------------     -----------------------
[Name]                                    Title


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

-------------------------------------
Residence Address

Date: ------------------,-----


<PAGE>


                                   EXHIBIT C-2

                      ASSIGNMENT SEPARATE FROM CERTIFICATE


         FOR VALUE RECEIVED I,  __________________________,  hereby sell, assign
and transfer  unto__________________________  (__________)  shares of the Common
Stock  of  SwitchOn  Networks,  Inc.  standing  in my name of the  books of said
corporation  represented  by  Certificate  No.  _____  herewith  and  do  hereby
irrevocably constitute and appoint _______________ to transfer the said stock on
the books of the within named corporation with full power of substitution in the
premises.

         This  Stock  Assignment  may  be  used  only  in  accordance  with  the
Restricted Stock Purchase  Agreement  between SwitchOn  Networks,  Inc.. and the
undersigned dated ______________, _____.

Dated: _______________,______              Signature:
                                           -------------------------------------







         INSTRUCTIONS: Please do not fill in any blanks other than the signature
line.  The purpose of this  assignment  is to enable the Company to exercise its
"repurchase option," as set forth in the Agreement, without requiring additional
signatures on the part of the Purchaser.



<PAGE>



                                   EXHIBIT C-3

                            JOINT ESCROW INSTRUCTIONS

                                                            ----------, ---

Corporate Secretary
SwitchOn Networks, Inc.
830 Hillview Court, Suite 190
Milpitas, CA 95035
Attention:  Secretary

Dear ______________:

         As Escrow Agent for both SwitchOn Networks,  Inc. (the "Company"),  and
the  undersigned  purchaser of stock of the Company (the  "Purchaser"),  you are
hereby  authorized and directed to hold the documents  delivered to you pursuant
to the terms of that certain Restricted Stock Purchase  Agreement  ("Agreement")
between  the Company  and the  undersigned,  in  accordance  with the  following
instructions:

         1.  In the  event  the  Company  and/or  any  assignee  of the  Company
(referred to collectively for convenience herein as the "Company") exercises the
Company's  repurchase option set forth in the Agreement,  the Company shall give
to Purchaser and you a written  notice  specifying the number of shares of stock
to be purchased, the purchase price, and the time for a closing hereunder at the
principal  office of the Company.  Purchaser and the Company hereby  irrevocably
authorize and direct you to close the transaction contemplated by such notice in
accordance with the terms of said notice.

         2. At the closing,  you are directed (a) to date the stock  assignments
necessary  for the  transfer  in  question,  (b) to fill in the number of shares
being transferred,  and (c) to deliver the stock assignments,  together with the
certificate evidencing the shares of stock to be transferred,  to the Company or
its assignee, against the simultaneous delivery to you of the purchase price (by
cash, a check,  or some  combination  thereof) for the number of shares of stock
being purchased pursuant to the exercise of the Company's repurchase option.

         3. Purchaser irrevocably authorizes the Company to deposit with you any
certificates  evidencing  shares  of stock to be held by you  hereunder  and any
additions  and  substitutions  to  said  shares  as  defined  in the  Agreement.
Purchaser  does hereby  irrevocably  constitute  and appoint you as  Purchaser's
attorney-in-fact  and agent for the term of this escrow to execute  with respect
to  such  securities  all  documents  necessary  or  appropriate  to  make  such
securities  negotiable  and to complete  any  transaction  herein  contemplated,
including  but not  limited to the  filing  with any  applicable  state blue sky
authority of any required applications for consent to, or notice of transfer of,
the  securities.  Subject to the provisions of this paragraph 3, Purchaser shall
exercise all rights and  privileges  of a  stockholder  of the Company while the
stock is held by you.

         4. Upon  written  request of the  Purchaser,  but no more than once per
calendar year, unless the Company's  repurchase  option has been exercised,  you
will deliver to Purchaser a certificate  or  certificates  representing  so many
shares of stock as are not then  subject  to the  Company's  repurchase  option.
Within 120 days after  cessation  of  Purchaser's  continuous  employment  by or
services to the Company,  or any parent or subsidiary  of the Company,  you will
deliver to Purchaser a certificate or  certificates  representing  the aggregate
number of shares held or issued  pursuant to the  Agreement and not purchased by
the Company or its assignees  pursuant to exercise of the  Company's  repurchase
option.
<PAGE>

         5. If at the time of termination of this escrow you should have in your
possession any documents,  securities, or other property belonging to Purchaser,
you shall  deliver all of the same to Purchaser  and shall be  discharged of all
further obligations hereunder.

         6. Your duties hereunder may be altered,  amended,  modified or revoked
only by a writing signed by all of the parties hereto.

         7. You shall be obligated  only for the  performance  of such duties as
are specifically set forth herein and may rely and shall be protected in relying
or refraining  from acting on any  instrument  reasonably  believed by you to be
genuine and to have been signed or presented by the proper party or parties. You
shall not be personally liable for any act you may do or omit to do hereunder as
Escrow Agent or as  attorney-in-fact  for Purchaser  while acting in good faith,
and any act done or omitted by you pursuant to the advice of your own  attorneys
shall be conclusive evidence of such good faith.

         8.  You  are  hereby  expressly  authorized  to  disregard  any and all
warnings  given  by  any  of the  parties  hereto  or by  any  other  person  or
corporation,  excepting  only  orders or process of courts of law and are hereby
expressly authorized to comply with and obey orders, judgments or decrees of any
court. In case you obey or comply with any such order,  judgment or decree,  you
shall not be liable to any of the parties hereto or to any other person, firm or
corporation  by  reason  of such  compliance,  notwithstanding  any such  order,
judgment or decree being subsequently reversed,  modified,  annulled, set aside,
vacated or found to have been entered without jurisdiction.

         9. You shall not be liable in any  respect on account of the  identity,
authorities  or rights of the parties  executing or  delivering or purporting to
execute or deliver the Agreement or any documents or papers  deposited or called
for hereunder.

         10. You shall not be liable for the  outlawing  of any rights under the
Statute of Limitations  with respect to these Joint Escrow  Instructions  or any
documents deposited with you.

         11.  You shall be  entitled  to employ  such  legal  counsel  and other
experts as you may deem necessary properly to advise you in connection with your
obligations  hereunder,  may rely upon the advice of such  counsel,  and may pay
such counsel reasonable compensation therefor.

         12. Your  responsibilities as Escrow Agent hereunder shall terminate if
you shall cease to be an officer or agent of the Company or if you shall  resign
by  written  notice to each  party.  In the event of any such  termination,  the
Company shall appoint a successor Escrow Agent.

         13.  If  you  reasonably  require  other  or  further   instruments  in
connection  with these  Joint  Escrow  Instructions  or  obligations  in respect
hereto, the necessary parties hereto shall join in furnishing such instruments.

         14. It is  understood  and agreed that  should any  dispute  arise with
respect  to  the  delivery  and/or  ownership  or  right  of  possession  of the
securities  held by you hereunder,  you are authorized and directed to retain in
your possession  without  liability to anyone all or any part of said securities
until such disputes shall have been settled  either by mutual written  agreement
of the parties  concerned or by a final order,  decree or judgment of a court of
competent  jurisdiction  after the time for appeal has expired and no appeal has
been perfected, but you shall be under no duty whatsoever to institute or defend
any such proceedings.
<PAGE>

         15.  Any  notice  required  or  permitted  hereunder  shall be given in
writing and shall be deemed  effectively  given upon  personal  delivery or upon
deposit in the United States Post Office,  by registered or certified  mail with
postage  and fees  prepaid,  addressed  to each of the other  parties  thereunto
entitled at the  following  addresses or at such other  addresses as a party may
designate  by ten days'  advance  written  notice  to each of the other  parties
hereto.

         16. By signing  these  Joint  Escrow  Instructions,  you become a party
hereto only for the purpose of said Joint Escrow Instructions; you do not become
a party to the Agreement.

         17.This  instrument  shall be binding  upon and inure to the benefit of
the parties hereto, and their respective successors and permitted assigns.

         18.These Joint  Escrow  Instructions  shall be governed by the internal
substantive laws, but not the choice of law rules, of California.



<PAGE>





PURCHASER                                  SWITCHON NETWORKS, INC.


-------------------------------------     ----------------------
Signature                                 By


-------------------------------------     -----------------------
[Name]                                    Title


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

-------------------------------------
Residence Address



ESCROW AGENT


Corporate Secretary

Dated: _______________, _____


<PAGE>



                                   EXHIBIT C-4

                                CONSENT OF SPOUSE


         I, ____________________,  spouse of ___________________,  have read and
approve the foregoing Restricted Stock Purchase Agreement (the "Agreement").  In
consideration  of  granting  of the  right to my spouse  to  purchase  shares of
____________________________, as set forth in the Agreement, I hereby appoint my
spouse as my attorney-in-fact in respect to the exercise of any rights under the
Agreement and agree to be bound by the provisions of the Agreement  insofar as I
may have any rights in said  Agreement  or any shares  issued  pursuant  thereto
under the community  property laws or similar laws relating to marital  property
in effect in the state of our  residence  as of the date of the  signing  of the
foregoing Agreement.

Dated: _______________, ____                         Signature:
                        ----                         ---------------------------



<PAGE>



                                   EXHIBIT C-5

                          ELECTION UNDER SECTION 83(b)
                      OF THE INTERNAL REVENUE CODE OF 1986


The undersigned taxpayer hereby elects, pursuant to Sections 55 and 83(b) of the
Internal Revenue Code of 1986, as amended, to include in taxpayer's gross income
or  alternative  minimum  taxable  income,  as the case may be, for the  current
taxable year the amount of any  compensation  taxable to taxpayer in  connection
with taxpayer's receipt of the property described below:

1.      The name, address,  taxpayer  identification number and taxable year of
the undersigned are as follows:


        NAME:  [Name]             TAXPAYER:                SPOUSE:

        ADDRESS:

        IDENTIFICATION NO.:        TAXPAYER:                SPOUSE:

        TAXABLE YEAR:

2.       The property with respect to which the election is made is described as
follows:  shares (the  -------------  "Shares")  of the Common Stock of SwitchOn
Networks, Inc. (the "Company").

3.       The  date  on  which  the   property   was   transferred   is:  ,  ___.

4.       The property is subject to the following restrictions:

         The Shares may not be transferred  and are subject to forfeiture  under
         the terms of an agreement  between the taxpayer and the Company.  These
         restrictions   lapse  upon  the  satisfaction  of  certain   conditions
         contained in such agreement.

5.       The  fair  market  value at the time of  transfer,  determined  without
         regard to any restriction  other than a restriction  which by its terms
         will never lapse, of such property is:

         $----------------------.

6.       The amount (if any) paid for such property is:

         $----------------------.

The  undersigned  has submitted a copy of this  statement to the person for whom
the services were performed in connection with the undersigned's  receipt of the
above-described  property.  The  transferee  of  such  property  is  the  person
performing the services in connection with the transfer of said property.

The  undersigned  understands  that the  foregoing  election  may not be revoked
except with the consent of the Commissioner.

Dated:
        --------------------'--------        ----------------------------
                                              Taxpayer

The undersigned spouse of taxpayer joins in this election.

Dated:
      ----------------------'--------         ---------------------------



<PAGE>


                                   EXHIBIT C-6

                           ACCREDITED INVESTOR LETTER

                                ---------, ------

TO SwitchOn Networks, Inc.:

The undersigned hereby represents and warrants to SwitchOn  Networks,  Inc. (the
"Company")  that the  undersigned  is an  "accredited  investor,"  as such  term
applies  to an  individual,  within  the  meaning  of Rule 501 of  Regulation  D
promulgated  under the Securities Act of 1933, as amended (the "Act"),  and that
the undersigned makes such  representation  and warranty because it comes within
the category checked below. (Please check the box which applies to you.)

 [  ]     (1)     Any director,  executive  officer,  or general  partner of the
                  Company or any director, executive officer, or general partner
                  of a general partner of the Company;

 [  ]     (2)     Any natural person whose  individual  net worth,  or joint net
                  worth with that person's  spouse,  at the time of his purchase
                  exceeds $1,000,000 (for purposes of this section,  "net worth"
                  means  the  excess  of  total  assets  at  fair  market  value
                  (including equity in a home, home furnishings and automobiles)
                  over total liabilities); and

 [  ]    (3)      Any natural  person who had an individual  income in excess of
                  $200,000 in each of the two most recent  years or joint income
                  with that  person's  spouse in excess of  $300,000  in each of
                  those years and has a reasonable  expectation  of reaching the
                  same income level in the current year.




(PLEASE PROVIDE THE EXACT NAME AS IT SHOULD APPEAR ON YOUR STOCK CERTIFICATE(S).





                             Signature:
                                        ----------------------------------------

                             Print Name:
                                          --------------------------------------



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