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                                                                    EXHIBIT 99.1



                                IPL SYSTEMS, INC.

                           1997 EQUITY INCENTIVE PLAN

                           ADOPTED SEPTEMBER 11, 1997

1.          PURPOSES.

            (a) The purpose of the Plan is to provide a means by which selected
Employees and Directors of and Consultants to the Company, and its Affiliates,
may be given an opportunity to benefit from increases in value of the stock of
the Company through the granting of (i) Incentive Stock Options, (ii)
Nonstatutory Stock Options, and (iii) Stock Appreciation Rights, all as defined
below.

            (b) The Company, by means of the Plan, seeks to retain the services
of persons who are now Employees or Directors of or Consultants to the Company
or its Affiliates, to secure and retain the services of new Employees, Directors
and Consultants, and to provide incentives for such persons to exert maximum
efforts for the success of the Company and its Affiliates.

            (c) The Company intends that the Stock Awards issued under the Plan
shall, in the discretion of the Board or any Committee to which responsibility
for administration of the Plan has been delegated pursuant to subsection 3(c),
be either Options granted pursuant to Section 6 hereof, including Incentive
Stock Options and Nonstatutory Stock Options, or Stock Appreciation Rights
granted pursuant to Section 7 hereof. All Options shall be separately designated
Incentive Stock Options or Nonstatutory Stock Options at the time of grant, and
in such form as issued pursuant to Section 6, and a separate certificate or
certificates will be issued for shares purchased on exercise of each type of
Option.

2.          DEFINITIONS.

            (a) "AFFILIATE" means any parent corporation or subsidiary
corporation, whether now or hereafter existing, as those terms are defined in
Sections 424(e) and (f) respectively, of the Code.

            (b) "BOARD" means the Board of Directors of the Company.

            (c) "CODE" means the Internal Revenue Code of 1986, as amended.

            (d) "COMMITTEE" means a Committee appointed by the Board in
accordance with subsection 3(c) of the Plan.

            (e) "COMPANY" means IPL Systems, Inc., a Massachusetts corporation.



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            (f) "CONCURRENT STOCK APPRECIATION RIGHT" or "CONCURRENT RIGHT"
means a right granted pursuant to subsection 8(b)(2) of the Plan.

            (g) "CONSULTANT" means any person, including an advisor, engaged by
the Company or an Affiliate to render consulting services and who is compensated
for such services, provided that the term "Consultant" shall not include
Directors who are paid only a director's fee by the Company or who are not
compensated by the Company for their services as Directors.

            (h) "CONTINUOUS STATUS AS AN EMPLOYEE, DIRECTOR OR CONSULTANT" means
that the service of an individual to the Company, whether as an Employee,
Director or Consultant, is not interrupted or terminated. The Board, in its sole
discretion, may determine whether Continuous Status as an Employee, Director or
Consultant shall be considered interrupted in the case of: (i) any leave of
absence approved by the Board, including sick leave, military leave, or any
other personal leave; or (ii) transfers between the Company, Affiliates or their
successors.

            (i) "COVERED EMPLOYEE" means the chief executive officer and the
four (4) other highest compensated officers of the Company for whom total
compensation is required to be reported to shareholders under the Exchange Act,
as determined for purposes of Section 162(m) of the Code.

            (j) "DIRECTOR" means a member of the Board.

            (k) "EMPLOYEE" means any person, including Officers and Directors,
employed by the Company or any Affiliate of the Company. Neither service as a
Director nor payment of a director's fee by the Company shall be sufficient to
constitute "employment" by the Company.

            (l) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

            (m) "FAIR MARKET VALUE" means, as of any date, the fair market value
of the common stock of the Company determined by the Board pursuant to Rule
260.140.50 of Title 10 of the California Code of Regulations.

            (n) "INCENTIVE STOCK OPTION" means an Option intended to qualify as
an incentive stock option within the meaning of Section 422 of the Code and the
regulations promulgated thereunder.

            (o) "INDEPENDENT STOCK APPRECIATION RIGHT" or "INDEPENDENT RIGHT"
means a right granted pursuant to subsection 8(b)(3) of the Plan.



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            (p) "NON-EMPLOYEE DIRECTOR" means a Director who either (i) is not a
current Employee or Officer of the Company or its parent or subsidiary, does not
receive compensation (directly or indirectly) from the company, or its parent or
subsidiary for services rendered as a consultant or in any capacity other than
as a Director (except for an amount as to which disclosure would not be required
under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act
of 1933 ("Regulation S-K"), does not possess an interest in any other
transaction as to which disclosure would be required under Item 404(a) of
Regulation S-K and is not engaged in a business relationship as to which
disclosure would be required under Item 404(b) of Regulation S-K; or (ii) is
otherwise considered a "non-employee director" for purposes of Rule 16b-3.

            (q) "NONSTATUTORY STOCK OPTION" means an Option not intended to
qualify as an Incentive Stock Option.

            (r) "OFFICER" means a person who is an officer of the Company within
the meaning of Section 16 of the Exchange Act and the rules and regulations
promulgated thereunder.

            (s) "OPTION" means a stock option granted pursuant to the Plan.

            (t) "OPTION AGREEMENT" means a written agreement between the Company
and an Optionee evidencing the terms and conditions of an individual Option
grant. Each Option Agreement shall be subject to the terms and conditions of the
Plan.

            (u) "OPTIONEE" means a person who holds an outstanding Option.

            (v) "OUTSIDE DIRECTOR" means a Director who either (i) is not a
current employee of the Company or an "affiliate corporation" (within the
meaning of the Treasury regulations promulgated under Section 162(m) of the
Code), is not a former employee of the Company or an "affiliated corporation"
receiving compensation for prior services (other than benefits under a tax
qualified pension plan), was not an officer of the Company or an "affiliated
corporation" at any time, and is not currently receiving director or indirect
remuneration from the Company or an "affiliated corporation" for services in any
capacity other than as a Director, or (ii) is otherwise considered an "outside
director" for purposes of 162(m) of the Code.

            (w) "PLAN" means this IPL Systems, Inc. 1997 Equity Incentive Plan.

            (x) "RULE 16B-3" means Rule 16b-3 of the Exchange Act or any
successor to Rule 16b-3, as in effect when discretion is being exercised with
respect to the Plan.

            (y) "STOCK APPRECIATION RIGHT" means any of the various types of
rights which may be granted under Section 8 of the Plan.



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            (z) "STOCK AWARD" means any right granted under the Plan, including
any Option, and any Stock Appreciation Right.

            (aa) "STOCK AWARD AGREEMENT" means a written agreement between the
Company and a holder of a Stock Award evidencing the terms and conditions of an
individual Stock Award grant. Each Stock Award Agreement shall be subject to the
terms and conditions of the Plan.

            (bb) "TANDEM STOCK APPRECIATION RIGHT" or "TANDEM RIGHT" means a
right granted pursuant to subsection 8(b)(1) of the Plan.

3.          ADMINISTRATION.

            (a) The Plan shall be administered by the Board unless and until the
Board delegates administration to a Committee, as provided in subsection 3(c).

            (b) The Board shall have the power, subject to, and within the
limitations of, the express provisions of the Plan:

                        (i) To determine from time to time which of the persons
eligible under the Plan shall be granted Stock Awards; when and how
each Stock Award shall be granted; whether a Stock Award will be an Incentive
Stock Option, a Nonstatutory Stock Option, or a Stock Appreciation Right, or a
combination of the foregoing; the provisions of each Stock Award granted (which
need not be identical), including the time or times when a person shall be
permitted to receive stock pursuant to a Stock Award; whether a person shall be
permitted to receive stock upon exercise of an Independent Stock Appreciation
Right; and the number of shares with respect to which a Stock Award shall be
granted to each such person.

                        (ii) To construe and interpret the Plan and Stock Awards
granted under it, and to establish, amend and revoke rules and
regulations for its administration. The Board, in the exercise of this power,
may correct any defect, omission or inconsistency in the Plan or in any Stock
Award Agreement, in a manner and to the extent it shall deem necessary or
expedient to make the Plan fully effective.

                        (iii) To amend the Plan or a Stock Award as provided in
Section 14.

            (c) The Board may delegate administration of the Plan to a committee
composed of not fewer than two (2) members (the "Committee"), all of the members
of which Committee shall be Non-Employee Directors and/or Outside Directors. If
administration is delegated to a Committee, the Committee shall have, in
connection with the administration of the Plan, the powers theretofore possessed
by the Board (and references in this Plan to the Board shall thereafter be to
the Committee), subject,



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however, to such resolutions, not inconsistent with the provisions of the Plan,
as may be adopted from time to time by the Board. The Board may abolish the
Committee at any time and revest in the Board the administration of the Plan.
Notwithstanding the foregoing, but only to the extent permitted by applicable
law, the Board may delegate to any executive officer or executive officers of
the Company authority to grant Stock Awards to eligible persons who are not then
subject to Section 16 of the Exchange Act and the term "Committee" shall apply
to any such executive officer or executive officers to whom such authority has
been delegated. Any such delegation, however, shall include aggregate and
individual limits on the size of Stock Awards to be made by such a committee.

            (d) Any requirement that an administrator of the Plan be a
Non-Employee Director shall not apply if the Board or the Committee expressly
declares that such requirement shall not apply. Any Non-Employee Director shall
otherwise comply with the requirements of Rule 16b-3.

4.          SHARES SUBJECT TO THE PLAN.

            (a) Subject to the provisions of Section 11 relating to adjustments
upon changes in stock, the stock that may be issued pursuant to Stock Awards
shall not exceed in the aggregate One Million One Hundred Ninety-Five Thousand
Five Hundred_ (1,195,500) shares of the Company's common stock. If any Stock
Award shall for any reason expire or otherwise terminate, in whole or in part,
without having been exercised in full, the stock not acquired under such Stock
Award shall revert to and again become available for issuance under the Plan.
Shares subject to Stock Appreciation Rights exercised in accordance with Section
7 of the Plan shall not be available for subsequent issuance under the Plan.

            (b) The stock subject to the Plan may be unissued shares or
reacquired shares, bought on the market or otherwise.

5.          ELIGIBILITY.

            (a) All Employees, Directors and Consultants of the Company (or any
business entity in which the Company owns directly or indirectly fifty percent
(50%) or more of the total voting power) capable of contributing significantly
to the successful performance of the Company, other than an employee who has
irrevocably elected not to be eligible, are eligible to be Participants in the
Plan.

            (b) No person shall be eligible for the grant of an Option if, at
the time of grant, such person owns (or is deemed to own pursuant to Section
424(d) of the Code) stock possessing more than ten percent (10%) of the total
combined voting power of all classes of stock of the Company or of any of its
Affiliates unless the exercise price of such



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Option is at least one hundred ten percent (110%) of the Fair Market Value of
such stock at the date of grant and if the Option is an Incentive Stock Option
the Option is not exercisable after the expiration of five (5) years from the
date of grant.

            (c) Subject to the provisions of Section 11 relating to adjustments
upon changes in stock, no person shall be eligible to be granted Options and
Stock Appreciation Rights under the Plan covering more than Six Hundred Thousand
(600,000) shares of the Company's common stock.

6.          OPTION PROVISIONS.

            Each Option shall be in such form and shall contain such terms and
conditions as the Board shall deem appropriate. The provisions of separate
Options need not be identical, but each Option shall include (through
incorporation of provisions hereof by reference in the Option or otherwise) the
substance of each of the following provisions:

            (a) TERM. No Option shall be exercisable after the expiration of ten
(10) years from the date it was granted.

            (b) PRICE. The Board will establish the exercise price of a Stock
Award at the time the Stock Award is granted. The exercise price will not be
less than one hundred percent (100%) of the Fair Market Value of the Common
Stock on the date of the Stock Award, provided that in the case of a
Nonstatutory Stock Option granted to a new employee of the Company within ninety
(90) days of the date of employment, the exercise price may be less than one
hundred percent (100%) of Fair Market Value on the date of such Award; provided,
however, that in no event will the exercise price be less than eighty-five
percent (85%) of Fair Market Value on the date of grant.

            (c) CONSIDERATION. The purchase price of stock acquired pursuant to
an Option shall be paid, to the extent permitted by applicable statutes and
regulations, either (i) in cash at the time the Option is exercised, or (ii) at
the discretion of the Board, as determined either at the time of the grant of
the Option or at any time thereafter, (A) by delivery to the Company of other
common stock of the Company, (B) according to a deferred payment or other
arrangement (which may include, without limiting the generality of the
foregoing, the use of other common stock of the Company) with the person to whom
the Option is granted or to whom the Option is transferred pursuant to
subsection 6(d), or (C) in any other form of legal consideration that may be
acceptable to the Board.

            In the case of any deferred payment arrangement, interest shall be
compounded at least annually and shall be charged at the minimum rate of
interest necessary to avoid the treatment as interest, under any applicable
provisions of the Code, of any amounts other than amounts stated to be interest
under the deferred payment arrangement.



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            (d) TRANSFERABILITY. An Option shall not be transferable except by
will or by the laws of descent and distribution, and shall be exercisable during
the lifetime of the person to whom the Option is granted only by such person's
guardian or legal representative; provided, however, that the Board may, in its
discretion, waive such restriction in any case when such restriction is no
longer required by applicable law.

            (e) VESTING. The total number of shares of stock subject to an
Option may, but need not, be allotted in periodic installments (which may, but
need not, be equal). The Option Agreement may provide that from time to time
during each of such installment periods, the Option may become exercisable
("vest") with respect to some or all of the shares allotted to that period, and
may be exercised with respect to some or all of the shares allotted to such
period and/or any prior period as to which the Option became vested but was not
fully exercised. The vesting provisions of individual Options may vary, but in
the case of an Option granted to a non-officer employee will provide for vesting
of at least twenty percent (20%) per year of the total number of shares subject
to the Option. The provisions of this subsection 6(e) are subject to any Option
provisions governing the minimum number of shares as to which an Option may be
exercised.

            (f) TERMINATION OF EMPLOYMENT OR RELATIONSHIP AS A DIRECTOR OR
CONSULTANT. In the event an Optionee's Continuous Status as an Employee,
Director or Consultant terminates (other than upon the Optionee's death or
disability), the Optionee may exercise his or her Option (to the extent that the
Optionee was entitled to exercise it as of the date of termination) but only
within such period of time ending on the earlier of (i) the date three (3)
months after the termination of the Optionee's Continuous Status as an Employee,
Director or Consultant (or such longer or shorter period, which in no event
shall be less than thirty (30) days, specified in the Option Agreement), or (ii)
the expiration of the term of the Option as set forth in the Option Agreement.
If, after termination, the Optionee does not exercise his or her Option within
the time specified in the Option Agreement, the Option shall terminate, and the
shares covered by such Option shall revert to and again become available for
issuance under the Plan.

            An Optionee's Option Agreement may also provide that if the exercise
of the Option following the termination of the Optionee's Continuous Status as
an Employee, Director, or Consultant (other than upon the Optionee's death or
disability) would result in liability under Section 16(b) of the Exchange Act,
then the Option shall terminate on the earlier of (i) the expiration of the term
of the Option set forth in the Option Agreement, or (ii) the tenth (10th) day
after the last date on which such exercise would result in such liability under
Section 16(b) of the Exchange Act. Finally, an Optionee's Option Agreement may
also provide that if the exercise of the Option following the termination of the
Optionee's Continuous Status as an Employee, Director or Consultant (other than
upon the Optionee's death or disability) would be prohibited at any time solely
because the issuance of shares would violate the registration requirements under



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the Act, then the Option shall terminate on the earlier of (i) the expiration of
the term of the Option set forth in the first paragraph of this subsection 6(f),
or (ii) the expiration of a period of three (3) months after the termination of
the Optionee's Continuous Status as an Employee, Director or Consultant during
which the exercise of the Option would not be in violation of such registration
requirements.

            (g) DISABILITY OF OPTIONEE. In the event an Optionee's Continuous
Status as an Employee, Director or Consultant terminates as a result of the
Optionee's disability, the Optionee may exercise his or her Option (to the
extent that the Optionee was entitled to exercise it as of the date of
termination), but only within such period of time ending on the earlier of (i)
the date twelve (12) months following such termination (or such longer or
shorter period, which in no event shall be less than six (6) months, specified
in the Option Agreement), or (ii) the expiration of the term of the Option as
set forth in the Option Agreement. If, at the date of termination, the Optionee
is not entitled to exercise his or her entire Option, the shares covered by the
unexercisable portion of the Option shall revert to and again become available
for issuance under the Plan. If, after termination, the Optionee does not
exercise his or her Option within the time specified herein, the Option shall
terminate, and the shares covered by such Option shall revert to and again
become available for issuance under the Plan.

            (h) DEATH OF OPTIONEE. In the event of the death of an Optionee
during, or within a period specified in the Option Agreement after the
termination of, the Optionee's Continuous Status as an Employee, Director or
Consultant, the Option may be exercised (to the extent the Optionee was entitled
to exercise the Option as of the date of death) by the Optionee's estate, by a
person who acquired the right to exercise the Option by bequest or inheritance
or by a person designated to exercise the option upon the Optionee's death
pursuant to subsection 6(d), but only within the period ending on the earlier of
(i) the date eighteen (18) months following the date of death (or such longer or
shorter period, which in no event shall be less than six (6) months, specified
in the Option Agreement), or (ii) the expiration of the term of such Option as
set forth in the Option Agreement. If, at the time of death, the Optionee was
not entitled to exercise his or her entire Option, the shares covered by the
unexercisable portion of the Option shall revert to and again become available
for issuance under the Plan. If, after death, the Option is not exercised within
the time specified herein, the Option shall terminate, and the shares covered by
such Option shall revert to and again become available for issuance under the
Plan.

            (i) RE-LOAD OPTIONS. Without in any way limiting the authority of
the Board to make or not to make grants of Options hereunder, the Board shall
have the authority (but not an obligation) to include as part of any Option
Agreement a provision entitling the Optionee to a further Option (a "Re-Load
Option") in the event the Optionee exercises the Option evidenced by the Option
Agreement, in whole or in part, by surrendering other 



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shares of Common Stock in accordance with this Plan and the terms and conditions
of the Option Agreement. Any such Re-Load Option (i) shall be for a number of
shares equal to the number of shares surrendered as part or all of the exercise
price of such Option; (ii) shall have an expiration date which is the same as
the expiration date of the Option the exercise of which gave rise to such
Re-Load Option; and (iii) shall have an exercise price which is equal to one
hundred percent (100%) of the Fair Market Value of the Common Stock subject to
the Re-Load Option on the date of exercise of the original Option.
Notwithstanding the foregoing, a Re-Load Option which is granted to a ten
percent (10%) shareholder (as described in subsection 5(c)), shall have an
exercise price which is equal to one hundred ten percent (110%) of the Fair
Market Value of the stock subject to the Re-Load Option on the date of exercise
of the original Option and shall have a term which is no longer than five (5)
years.

            Any such Re-Load Option may be an Incentive Stock Option or a
Nonstatutory Stock Option, as the Board may designate at the time of the grant
of the original Option; provided, however, that the designation of any Re-Load
Option as an Incentive Stock Option shall be subject to the one hundred thousand
dollar ($100,000) annual limitation on exercisability of Incentive Stock Options
described in subsection 10(f) of the Plan and in Section 422(d) of the Code.
There shall be no Re-Load Options on a Re-Load Option. Any such Re-Load Option
shall be subject to the availability of sufficient shares under subsection 4(a)
and shall be subject to such other terms and conditions as the Board may
determine which are not inconsistent with the express provisions of the Plan
regarding the terms of Options.

7.          STOCK APPRECIATION RIGHTS.

            (a) The Board (or Committee) shall have full power and authority,
exercisable in its discretion, to grant Stock Appreciation Rights under the Plan
to Employees or Directors of or Consultants to, the Company or its Affiliates.
To exercise any outstanding Stock Appreciation Right, the holder must provide
written notice of exercise to the Company in compliance with the provisions of
the Stock Award Agreement evidencing such right. If a Stock Appreciation Right
is granted to an individual who is at the time subject to Section 16(b) of the
Exchange Act (a "Section 16(b) Insider"), the Stock Award Agreement of grant
shall incorporate all the terms and conditions at the time necessary to assure
that the subsequent exercise of such right shall qualify for the safe-harbor
exemption from short-swing profit liability provided by Rule 16b-3 promulgated
under the Exchange Act (or any successor rule or regulation). No limitation
shall exist on the aggregate amount of cash payments the Company may make under
the Plan in connection with the exercise of a Stock Appreciation Rights.

            (b) Three types of Stock Appreciation Rights shall be authorized for
issuance under the Plan:



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                        (i) TANDEM STOCK APPRECIATION RIGHTS. Tandem Stock
Appreciation Rights will be granted appurtenant to an Option, and shall, except
as specifically set forth in this Section 8, be subject to the same terms and
conditions applicable to the particular Option grant to which it pertains.
Tandem Stock Appreciation Rights will require the holder to elect between the
exercise of the underlying Option for shares of stock and the surrender, in
whole or in part, of such Option for an appreciation distribution. The
appreciation distribution payable on the exercised Tandem Right shall be in cash
(or, if so provided, in an equivalent number of shares of stock based on Fair
Market Value on the date of the Option surrender) in an amount up to the excess
of (A) the Fair Market Value (on the date of the Option surrender) of the number
of shares of stock covered by that portion of the surrendered Option in which
the Optionee is vested over (B) the aggregate exercise price payable for such
vested shares.

                        (ii) CONCURRENT STOCK APPRECIATION RIGHTS. Concurrent
Rights will be granted appurtenant to an Option and may apply to all or any
portion of the shares of stock subject to the underlying Option and shall,
except as specifically set forth in this Section 8, be subject to the same terms
and conditions applicable to the particular Option grant to which it pertains. A
Concurrent Right shall be exercised automatically at the same time the
underlying Option is exercised with respect to the particular shares of stock to
which the Concurrent Right pertains. The appreciation distribution payable on an
exercised Concurrent Right shall be in cash (or, if so provided, in an
equivalent number of shares of stock based on Fair Market Value on the date of
the exercise of the Concurrent Right) in an amount equal to such portion as
shall be determined by the Board at the time of the grant of the excess of (A)
the aggregate Fair Market Value (on the date of the exercise of the Concurrent
Right) of the vested shares of stock purchased under the underlying Option which
have Concurrent Rights appurtenant to them over (B) the aggregate exercise price
paid for such shares.

                        (iii) INDEPENDENT STOCK APPRECIATION RIGHTS. Independent
Rights will be granted independently of any Option and shall, except as
specifically set forth in this Section 8, be subject to the same terms and
conditions applicable to Nonstatutory Stock Options as set forth in Section 6.
They shall be denominated in share equivalents. The appreciation distribution
payable on the exercised Independent Right shall be not greater than an amount
equal to the excess of (A) the aggregate Fair Market Value (on the date of the
exercise of the Independent Right) of a number of shares of Company stock equal
to the number of share equivalents in which the holder is vested under such
Independent Right, and with respect to which the holder is exercising the
Independent Right on such date, over (B) the aggregate Fair Market Value (as
determined on the date of the grant of the Independent Right, or if so provided
in the Independent Stock Appreciation Right on the date of hire as an Employee
if such date is within ninety (90) days of the date of grant and such value is
not less than eighty-five percent (85%) of the aggregate Fair Market Value on
the date of grant) of such number of shares of Company stock. The 



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appreciation distribution payable on the exercised Independent Right shall be in
cash or, if so provided, in an equivalent number of shares of stock based on
Fair Market Value on the date of the exercise of the Independent Right.

8.          CANCELLATION AND RE-GRANT OF OPTIONS. The Board shall have the 
authority to effect, at any time and from time to time, (i) the repricing of any
outstanding Options and/or any Stock Appreciation Rights under the Plan and/or
(ii) with the consent of the affected holders of Options and/or Stock
Appreciation Rights, the cancellation of any outstanding Options and/or any
Stock Appreciation Rights under the Plan and the grant in substitution therefor
of new Options and/or Stock Appreciation Rights under the Plan covering the same
or different numbers of shares of stock, but having an exercise price per share
not less than eighty-five percent (85%) of the Fair Market Value (one hundred
percent (100%) of the Fair Market Value in the case of an Incentive Stock Option
or, in the case of a ten percent (10%) shareholder (as described in subsection
5(c)), not less than one hundred ten percent (110%) of the Fair Market Value)
per share of stock on the new grant date. Notwithstanding the foregoing, the
Board may grant an Option and/or Stock Appreciation Right with an exercise price
lower than that set forth above if such Option and/or Stock Appreciation Right
is granted as part of a transaction to which section 424(a) of the Code applies.

9.          COVENANTS OF THE COMPANY.

            (a) During the terms of the Stock Awards, the Company shall keep
available at all times the number of shares of stock required to satisfy such
Stock Awards.

            (b) The Company shall seek to obtain from each regulatory commission
or agency having jurisdiction over the Plan such authority as may be required to
issue and sell shares of stock upon exercise of the Stock Award; provided,
however, that this undertaking shall not require the Company to register under
the Securities Act of 1933, as amended (the "Securities Act") either the Plan,
any Stock Award or any stock issued or issuable pursuant to any such Stock
Award. If, after reasonable efforts, the Company is unable to obtain from any
such regulatory commission or agency the authority which counsel for the Company
deems necessary for the lawful issuance and sale of stock under the Plan, the
Company shall be relieved from any liability for failure to issue and sell stock
upon exercise of such Stock Awards unless and until such authority is obtained.

10.         MISCELLANEOUS.

            (a) Proceeds from the sale of stock pursuant to Stock Awards shall
constitute general funds of the Company.

            (b) Neither an Employee, Director or Consultant nor any person to
whom a Stock Award is transferred under subsection 6(d), or 7(a) shall be deemed
to be the holder 



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of, or to have any of the rights of a holder with respect to, any shares subject
to such Stock Award unless and until such person has satisfied all requirements
for exercise of the Stock Award pursuant to its terms.

            (c) Throughout the term of any Stock Award, the Company shall
deliver to the holder of such Stock Award, not later than one hundred twenty
(120) days after the close of each of the Company's fiscal years during the term
of such Stock Award, a balance sheet and an income statement. This section shall
not apply when issuance is limited to key employees whose duties in connection
with the Company assure them access to equivalent information.

            (d) Nothing in the Plan or any instrument executed or Stock Award
granted pursuant thereto shall confer upon any Employee, Director, Consultant or
other holder of Stock Awards any right to continue in the employ of the Company
or any Affiliate (or to continue acting as a Director or Consultant) or shall
affect the right of the Company or any Affiliate to terminate the employment of
any Employee with or without cause, to remove any Director as provided in the
Company's Bylaws and the provisions of the General Corporation Law of the
Commonwealth of Massachusetts or to terminate the relationship of any Consultant
in accordance with the terms of that Consultant's agreement with the Company or
Affiliate to which such Consultant is providing services.

            (e) To the extent that the aggregate Fair Market Value (determined
at the time of grant) of stock with respect to which Incentive Stock Options are
exercisable for the first time by any Optionee during any calendar year under
all plans of the Company and its Affiliates exceeds one hundred thousand dollars
($100,000), the Options or portions thereof which exceed such limit (according
to the order in which they were granted) shall be treated as Nonstatutory Stock
Options.

            (f) The Company may require any person to whom a Stock Award is
granted, or any person to whom a Stock Award is transferred pursuant to
subsection 6(d) or 7(b), as a condition of exercising or acquiring stock under
any Stock Award, (1) to give written assurances satisfactory to the Company, if
any, that are necessary to ensure compliance with federal securities laws. These
requirements, and any assurances given pursuant to such requirements, shall be
inoperative if (i) the issuance of the shares upon the exercise or acquisition
of stock under the Stock Award has been registered under a then currently
effective registration statement under the Securities Act, or (ii) as to any
particular requirement, a determination is made by counsel for the Company that
such requirement need not be met in the circumstances under the then applicable
securities laws.

            (g) To the extent provided by the terms of a Stock Award Agreement,
the person to whom a Stock Award is granted may satisfy any federal, state or
local tax withholding obligation relating to the exercise or acquisition of
stock under a Stock 



                                      12.
   13
Award by any of the following means or by a combination of such means: (1)
tendering a cash payment; (2) authorizing the Company to withhold shares from
the shares of the common stock otherwise issuable to the participant as a result
of the exercise or acquisition of stock under the Stock Award; or (3) delivering
to the Company owned and unencumbered shares of the common stock of the Company.

11.         ADJUSTMENTS UPON CHANGES IN STOCK.

            (a) If any change is made in the stock subject to the Plan, or
subject to any Stock Award, without the receipt of consideration by the Company
(through merger, consolidation, reorganization, recapitalization,
reincorporation, stock dividend, dividend in property other than cash, stock
split, liquidating dividend, combination of shares, exchange of shares, change
in corporate structure or other transaction not involving the receipt of
consideration by the Company), the Plan will be appropriately adjusted in the
class(es) and maximum number of shares subject to the Plan pursuant to
subsection 4(a), and the outstanding Stock Awards will be appropriately adjusted
in the class(es) and number of shares and price per share of stock subject to
such outstanding Stock Awards. Such adjustments shall be made by the Board or
the Committee, the determination of which shall be final, binding and
conclusive. If considered appropriate, the Board or the Committee may make a
provision for a cash payment with respect to all or part of an outstanding Stock
Award instead of or in addition to any such adjustment.

            (b) In the event of: (1) a merger or consolidation in which the
Company is not the surviving corporation; (2) a reverse merger in which the
Company is the surviving corporation but the shares of the Company's common
stock outstanding immediately preceding the merger are converted by virtue of
the merger into other property, whether in the form of securities, cash or
otherwise; or (3) a sale of all or substantially all of the assets of the
Company, then: (i) any surviving or acquiring corporation shall assume any Stock
Awards outstanding under the Plan or shall substitute similar stock awards
(including an award to acquire the same consideration paid to the stockholders
in the transaction described in this subsection 11(b)) for those outstanding
under the Plan, or (ii) in the event any surviving or acquiring corporation
refuses to assume such Stock Awards or to substitute similar Stock Awards for
those outstanding under the Plan, then such Stock Awards shall be terminated if
not exercised prior to such event. In the event of a dissolution or liquidation
of the Company, any Stock Awards outstanding under the Plan shall terminate if
not exercised prior to such event.

12.         AMENDMENT OF THE PLAN AND STOCK AWARDS.

            (a) The Board at any time, and from time to time, may amend the
Plan. However, except as provided in Section 11 relating to adjustments upon
changes in stock, no amendment shall be effective unless approved by the
shareholders of the Company to 



                                      13.
   14
the extent shareholder approval is necessary for the Plan to satisfy the
requirements of Section 422 of the Code, Rule 16b-3 under the Exchange Act or
any Nasdaq or securities exchange listing requirements.

            (b) The Board may, in its sole discretion, submit any other
amendment to the Plan for shareholder approval, including, but not limited to,
amendments to the Plan intended to satisfy the requirements of Section 162(m) of
the Code and the regulations promulgated thereunder regarding the exclusion of
performance-based compensation from the limit on corporate deductibility of
compensation paid to certain executive officers.

            (c) It is expressly contemplated that the Board may amend the Plan
in any respect the Board deems necessary or advisable to provide eligible
Employees, Directors or Consultants with the maximum benefits provided or to be
provided under the provisions of the Code and the regulations promulgated
thereunder relating to Incentive Stock Options and/or to bring the Plan and/or
Incentive Stock Options granted under it into compliance therewith.

            (d) Rights and obligations under any Stock Award granted before
amendment of the Plan shall not be impaired by any amendment of the Plan unless:
(i) the Company requests the consent of the person to whom the Stock Award was
granted and (ii) such person consents in writing.

            (e) The Board at any time, and from time to time, may amend the
terms of some or all Stock Awards; provided, however, that if the Board
determines that the effect of an amendment, taken as a whole, would be to impair
rights and obligations under any Stock Award then such amendment shall not be
effective as to a particular Stock Award unless: (i) the Company requests the
consent of the person to whom the Stock Award was granted and (ii) such person
consents in writing. 

13.         TERMINATION OR SUSPENSION OF THE PLAN.

            (a) The Board may suspend or terminate the Plan at any time. Unless
sooner terminated, the Plan shall terminate ten (10) years from the date the
Plan is adopted by the Board or approved by the shareholders of the Company,
whichever is earlier. No Stock Awards may be granted under the Plan while the
Plan is suspended or after it is terminated.

            (b) Rights and obligations under any Stock Award granted while the
Plan is in effect shall not be impaired by suspension or termination of the
Plan, except with the written consent of the person to whom the Stock Award was
granted.



                                      14.
   15
14.         EFFECTIVE DATE OF PLAN.

            The Plan shall become effective as determined by the Board, but no
Stock Awards granted under the Plan shall be exercised unless and until the Plan
has been approved by the shareholders of the Company, which approval shall be
within twelve (12) months before or after the date the Plan is adopted by the
Board, and, if required, an appropriate permit has been issued by the
Commissioner of Corporations of the State of California.