Document:

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                                                                 Exhibit 10.13

That was assessed and signed in Haifa on the 18 of the month of January the year
1999
Between
Mirobin Ltd. H.P. 51 - 170019 - 7
From Yokne'am Ezor Ta'asiyah, Mirobin, building
Hereafter "The Lessor"
On one hand

And between
An. Bais Fibronks Ltd. H.P. 51 - 238 054 - 4
From Yokne'am Ezor Ta'asiyah, Mirobin Building

Hereafter: "The Lessee:
On the other hand

Part 1. Definitions, Obligations, and special provisions.

A. "Rented Property": Right of occupation and tenancy in area of approximately -
669 square meters on the ground floor, in Yokne'am House, industrial area,
Nirobin building (hereafter: "Rented Property")

B. "Rental Period": the Lessor leases the Rented Property to the Lessee from
February 1, 1999 until September 30, 2003 (clause 4).

C. "Starting date of tenancy": on February 1, 1999

D. Purpose of lease: High-Tech enterprise.

     The Lessee can use the Rented Property only for the purpose that is
mentioned above, and not for any other purpose, which is without the consent of
the Lessor, in writing and in advance.

E. Basic Rental fees for two months: 9 dollars per square meter - 24.596
shekels.

     Rental fees for the entire period: 1,377,376 Shekels, linked as itemized in
the following.

F. Rental fees for the entire period will be paid bi-annually in the sum of
147,576 Shekels each payment as itemized as follows, and that in advance one
payment for each half year.

G. Linking: The rental fees are linked to the consumer price index (The base
index will be December/1998 as itemized in clause 6 of the contract.)

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H. Fees necessary for clause 20.2: $1,000 linking to the representative rate of
exchange, for each late day in vacating the Rented Property.

I. The Lessee is obligated to take care and execute the connection of the
electricity and the water for the Rented Property and pay for it, the Lessee
will disconnect the electricity and the water to the Rented Property, and the
Lessor will pay for the expenses of disconnecting the electricity and the water.

J. Bank Guarantee: In order to assure the fulfillment of all the obligation on
the part of the Lessee according to the rental lease, and according to clause
19.2 in particular, the Lessee has to produce a bank guarantee for the entire
sum of the rental fees for a period of three years, which is predicated
according to this contract. The bank guarantee will be linked to the index
according to this contract.

K. Adjustment repairs: The Lessor will build and pay for a dividing wall inside
the warehouse on the ground floor to divide the wheelhouse, this wall is marked
on the design plan as a yellow line.

The Lessor:                                              The Lessee:
Mirobin  Ltd.                                            An. Bays
(Written in Hebrew and Roman characters)                 Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

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[Page 2]

Since     the Lessor is the registered owner and/or has the dominion to lease
          block 11495, lot 11, plot 2, (hereafter: "Property").

Since     the Lessor erected a structure on the Property (hereafter: "the
          Structure"), and the Rented Property are included in it as was defined
          in clause 2 as follows;

And Since the Lessee declares that he will operate "An approved Enterprise" and
          is interested in leasing from the Lessor a portion of the structure,
          which is described hereafter, in a lease that is not protected
          according to regulations covering tenants rights;

And ince  the Lessee is interested in leasing a portion of the Structure to the
          Lessee Which will operate "An Approved Enterprise" as described
          hereafter, in a Lease that is not protected according to the tenants
          rights and its regulations;

And Since the parties desire to define their relationship, their rights and
          their mutual obligations, all in accordance with and according to the
          items described in the following contract;:

Therefore it was declared and was conditioned and agreed upon by both parties as
follows:

The Introduction
1.1       The stipulations and the declarations in this introduction to the
          contract are not a separate part of this contract and should be viewed
          as if they were explicitly a part of it.
1.2       The titles of the clauses were put in for convenience and are not a
          part of the contract.
1.3       All the addendums and the appendixes are a non separable part of the
          contract.
1.4       Upon signing this contract, all the lateral declarations and/or
          obligations and/or exposition that was done by the parties before the
          signing of this contract are null and void and from its inception.

2.        Description of the Rented property.
2.1       It is an area, approximately 669 square meters on the ground floor of
          a structure in the industrial area of Yokne'am (hereafter: "Rented
          Property"). Plans of the Rented Property are marked in a red frame on
          the attached plan and it will be attached to the contract as addendum
          A.
2.2       -------------------(Blank)

2.3       Use of the Rented Property

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3.1       The Rented Property will be used during the leasing period according
          to the contract for the purpose which is detailed in part A clause D
          above

          And the Lessee is obligated not to use the Rented Property and/or any
          part of it for other purposes, except for the purpose that is
          mentioned above, without the written permission and with advance
          notice of the Lessor.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

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[Page 3]

3.2       Should the Lessee fail to pay his rental fees according to the
          contract for over three consecutive months, the Lessor could view this
          act or the lack of it, as if the Lessee relinquishes his rights
          according to the contract and the Lessee (in the event that the Lessor
          demands), to vacate the Rented Property within three months from the
          written warning of the Lessor, without affecting the flow of the
          payment fees, that the Lessee is obligated to pay according to this
          contract, and especially the rental fees up to the end of the rental
          period.

3.3       Without taking away from any other rights of the Lessor, the Lessor,
          within three months as aforesaid in the subsection (3.2) above, has
          the right to take possession of the Rented Property after he informed
          in writing to the Lessee of the date he plans to take possession of
          the Rented Property.

3.4.1     In the event that the Lessor takes legal possession of the property as
          aforesaid in this contract, the Lessee gives the Lessor irrevocable
          power of attorney, to take possession or to take out all the property,
          equipment and the belongings of the Lessee above, Hereafter - "the
          Belongings", in the presence of two witnesses who will verify by their
          signing on the list of the Belongings, and he will store them on the
          account of the Lessee (the Lessee will have to pay for it). Either on
          the Rented Property or in any other place, and the Lessor will not be
          responsible in any way for the Belongings. In addition, the Lessor is
          not responsible for any damage done to the Belongings as a result of
          this act.

3.4.2     The Lessee, for the purpose of clause 3.2 + clause 3.4.1. gives the
          Lessor irrevocable power of attorney to sell all the Belongings as he
          sees fit, and to use the proceeds to cover the expenses of the
          transportation of the Belongings, their storage, to insure the
          Belongings, and for the sale of the Belongings and for payment of any
          sum that the Lessee owes the Lessor according to the conditions of the
          contract.

3.5 In order to remove any doubt herewith it is declared that holding the
Belongings of the Lessee at the Rented Property does not diminish from the
rights of the Lessor to act according to this aforesaid in clause 3 including
its sub clauses.

THE LEASE PERIOD

4.1 The lease period is for 56 months commencing on February 1, 1999 (hereafter:
"Leasing Date") and ends on September 30, 2003 (hereafter: "Ending Date of
Leasing") according to the terms which are specified in this contract. The
period starting in the Leasing Period and ending with the Ending Date of Leasing
will be referred to as - "the Leasing Period".

5.        ADEQUACY

5.1       Subject to the declaration of the Lessor, that he is not aware of any
          hidden defects, the Lessee declares that he saw and examined the
          Rented Property, physically and legally, and agrees to receive the
          Rented Property in its current condition and taking possession of the
          Rented Property is an indication of acknowledgement and/or agreement
          and/or admission on the part of the Lessee that he saw and examined
          the Rented Property and found it in good condition, proper and fit for
          use and fits the purpose and is suitable for his aim, subject to the
          execution of the modifications mentioned in clause 5.2

5.2       In spite of the aforesaid in clause 5.1, in the event that on the day
          of the giving of possession, a few modifications will be left to do,
          thus the matter will be recorded in the transferring record, and it
          will not void in any manner the aforesaid in clause 5.1 that is
          mentioned above.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

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[Page 4]

6.        RENTAL FEES

6.1       The Lessee will pay the Lessor the rental fees as detailed in part A.
          (clause 1.5 + 6) The following linkage differentials will be added to
          the Capital of the rental fees as will be defined in the following:

          Index Means, the consumer price index, including fruits and vegetables
          that is published by The Central Committee For Statistics. In the
          event that the index changes its format or will be calculated
          differently or in the event that it is published by another
          institution, the Lessor will calculate the rise of the index for the
          purpose of clause 6, taking into account the changes in the accounting
          system mentioned above.

          Basic Index The index that was published on January 15, 1999 for
          December, 1998

          TheNew Index The latest index that will be published at the time
          before the payment that the Lessee pays the Lessor as he is obligated
          in this agreement.

          Linkage Differential The difference between the new Index and the
          basic Index divided by the Basic Index and multiplied by the capital
          of the rental fees.

6.2       Capital of the Rental fees, plus the linkage differential will be
          referred to in this agreement as "Rental Fees".
6.3       The Rental Fees plus the value added tax that falls on the payment due
          date will be paid six months in advance, on the 16th of February and
          August of every year.

6.4       To avoid any doubt, it is made clear here that the Lessee will pay the
          full amount of the rental fees for the entire leasing period. If he
          uses the Rental promises or not.

6.5       The payment of the rental fees or any other payment is due by the
          Lessee in full and on time, and is an essential condition of this
          agreement, and failing to pay any payment on its due date, will be
          viewed as a fundamental breach of the agreement by the Lessee and will
          award the Lessor all the remedies that were awarded to him according
          to the agreement and/or by any legal means, including the physical
          removal of the Lessee from the Rental Property immediately after the
          delinquency of the payment. In the event that the Lessee corrects the
          breach within 10 days from the day he received the written warning
          about it in writing.

6.6       Without affecting the rights of the Lessor from demanding the eviction
          of the Rented Property and any other measure, if the Lessee does not
          pay the Lessor

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          the Rental fees and/or any other payment which is due on a specific
          date by the agreement, the amount of the payment will bear interest in
          arrears equal to the rate that Discount Bank of Israel, Ltd. charges
          at that time for approved "over-draft" in a credit-line account.
          (hereafter: "Delinquent Interest"), plus the Index according to the
          terms of this agreement.

6.7       In spite of the aforesaid above, a 7 days delinquency in a payment of
          any sort will not be considered as a fundamental breach, but it will
          carry delinquent interest as mentioned above plus Index.

6.8       In order to simplify the collection, the Lessee will sign a letter of
          attorney to the bank in the following version (hereafter: "Letter of
          attorney". All the sums that appear in this clause will be paid by
          means of this "Letter of Attorney" by debiting the account of the
          Lessee at the bank. As long as the Lessee will not vacate the Rental
          Property, the Lessee will not be permitted, without the written
          consent of the Lessor, to change or to cancel the Letter of Attorney.

6.9       Without deducting from the aforesaid in clause 6.8, in addition to the
          Letter Of Attorney, the Lessee will give the Lessor 10 promissory
          notes signed by him with the signatures of guarantors that will be
          approved by the Lessor. The promissory notes and their due date will
          be identical to the Capital of Rental Fees plus the value added tax.
          Handing over the promissory note is not considered payment of the
          Capital of the Rental Fees, and only upon full payment of the Rental
          Fees, according to this agreement, the Promissory notes will be
          considered paid. The Lessee releases the Lessor from any obligations
          from holding the promissory note.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

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[Page 5]

6.10      The Lessor is compelled to use the promissory notes only if any
          payment of the Lessee is not paid in accordance with the Letter of
          Attorney, the Lessee gives herewith to the Lessor the power of
          attorney to use the promissory notes in the event that was mentioned
          above, in accordance with this agreement, the Lessor will give back to
          the Lessee, against each payment those promissory notes that their
          total plus the linkage differentials were paid concurrently.

6.11      The powers of attorney that were given by the Lessee to the Lessor as
          detailed above, are not reversible and are not subject to changes when
          they relate to the right of the Lessor.

6.12      The Lessee will pay the Lessor value added tax in the value that is
          set by law on the payment day.

6.13      In addition, the Lessee will pay the linkage differentials for each
          payment within three days from the payment day, if the bank hasn't
          executed it according to the Letter of Attorney.

7.        TAXES, COMPULSORY PAYMENTS AND EXPENSES.

7.1       The Lessor is responsible for paying property tax for the Rented
          Property and any other governmental tax, which is imposed or will be
          imposed on the property owners.

7.2       The Lessee will be responsible to pay for the Rented Property the
          following payments, as they relate to the period that commences on the
          Leasing Date to the end of Lease term and/or the date that this
          agreement will be terminated, according to the latest date:

7.2.1     All the taxes, municipal tax, compulsory payments which are imposed by
          law for those who possess properties, including municipal taxes to the
          local municipality of Yokne'am.

7.2.2     All the current expenses, including but not limited to the expenses
          mentioned above, for water use, electricity, gas, maintenance fees and
          telephone use.

7.2.3     Cleaning expenses and maintenance of the mutual property in the
          structure accordance to the relationship between the area of the
          Rented Property and the area of the structure.

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7.2.4     Proportional part from the current expense to maintain the structure,
          such as asphalting, whitewashing, etc, expenses of unique nature will
          be coordinated in writing and in advance.

7.2.5.    If a maintenance company will be established to maintain the mutual
          property, the Lessee will be obligated to pay proportionally any sum
          that the maintenance company which maintains or will maintain the
          mutual property of the structure, (and that will be appointed by the
          Lessor). (TRANSLATOR NOTE: THE IDEA OF THE CLAUSE IS NOT COMPLETE.)

7.3       In the event that the Lessor is penalized because of the Lessee's
          action, or inaction, the Lessee must indemnify the Lessor immediately
          for this including the legal expenses of the Lessor.

7.4       In the event that the Lessee does not pay the fee he is obligated to
          according to the agreement, the Lessor is permitted, but not obligated
          to pay the payment instead, and the Lessee will be obligated to repay
          the payment to the Lessor immediately upon receiving the bill with the
          itemized expenses as set forth in the conditions in the agreement plus
          the delinquent Interest as detailed in the agreement.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

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[Page 6]

8.        INSURANCE

8.1       The Lessee is obligated to take out a general insurance policy on his
          account on the Rental Property, (including third party insurance
          against all risks, including fire, explosion, earthquake, sabotage,
          acts of war and such for realistic amount of the Rented Property,
          where the beneficiary is the Lessor, in insuring the contents, the
          beneficiary will be the Lessee. It is the obligation of the Lessee to
          precisely fulfill the instructions of the policy, the Lessor has the
          right to take out a variety of insurance policies in his favor, and
          this act will not remove from the Lessee the responsibility to insure
          the Rented Property and its contents.

8.2       The policy must cover all the dangers associated with a common
          industrial structure, including the additional particular dangers
          associated with the production and storage of materials that will be
          used by the Lessee in the Rented Property.

8.3       Without affecting the general content of the above mentioned, the
          policy will cover the following: fire, lightening, explosion, impact
          of flying object, sonic sound, civil unrest, strikes, damage in
          malice, break ins, earthquakes, flood storms, wind storms, water
          damage, electrical shorts and overheating.

8.4       The accommodating party and the beneficiary of this policy is the
          Lessor.

8.5       The Lessee is obligated to produce and hand a copy of the insurance
          policy to the Lessor up to one month before taking occupancy in the
          Rented Property.

8.6       In the event that the Lessee does not pay the insurance payments which
          are described above, the Lessor could, but is not obligated to pay
          these insurance payments on behalf of the Lessee, and the Lessee must
          pay back those payments upon being presented with the paid receipts.

8.6       [sic] The Lessee could insure himself with additional insurance in
          which the Lessee is the beneficiary in the insurance policy.

9         TRANSFERRING OF THE RENTED PREMISES OR THE LEASING BY THE LESSOR

          The Lessor is permitted to transfer the Rented Property, including the
          Lessor's rights according to this agreement in total or partially, to
          a person or to any entity, without the permission of the Lessee and on
          condition that the rights of the Lessee will not be affected by that
          agreement.

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          The Lessee is required to sign any document requested, if requested,
          in connection of the transfer of the rights of the Lessor in regards
          to the Rented Property to a third party.

10        THE OBLIGATIONS OF THE LESSEE

          The Lessee is obligated:

10.1      Not to transfer the possession and/or the use of the Rented Property
          or a part of it and/or not to rent the Rented Property or part of it
          as sub-leasing or otherwise and/or not to assign or to subjugate
          and/or to transfer in any other way his right in the Rented Property
          or part of it, unless he received the written permission in this
          regard from the Lessor.

10.2      To maintain the Rented Property in a working condition, to keep the
          Rented Property and its surroundings clean, including and without
          affecting the general content of the above mentioned, to get rid of
          all the industrial waste and or any other type of waste from the
          Rented Property and its surroundings.

10.3      To permit the Lessor or his representative to enter into the Rented
          Property at any time and any reasonable time and with advance
          coordination in order to examine the condition of the Rented Property
          and/or to show the Rented Property to persons or other customers
          and/or to execute some repairs in the Rented Property.

The Lessor:                                              The Lessee:
Mirobin  Ltd.                                            An. Bays
(Written in Hebrew and Roman characters)                 Fibronics Ltd.
(illegible handwritten signature)               illegible handwritten signature)

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[Page 7]

          In order to remove any doubt, it must be clear that the Lessor is not
          obligated to make any repairs or any other modifications in the Rented
          Property.

10.4      To abide by and fulfill all the instructions, the laws and by laws,
          ordinance, rules, and inter cities planning, of any competent
          authority, that come into force regarding the Rented Property and/or
          the use of the Rented Property.

10.5      To use the Rented Property in such a way that it will not cause any
          disturbances and/or discomfort to its neighbors, and in general the
          Lessee is obligated not to make a great deal of noise, odors and
          shaking that might disturb other enterprises neighboring the Rented
          Property.

          In the event of a breach of this clause, in addition to any other
          right that the Lessor will have in regards to the instructions of this
          agreement and or in accordance to the law, the Lessor will be able to
          examine, and/or measure and/or fix, and or any other act that will
          seem proper from the Lessors point of view, in order to bring the
          situation into its previous condition and/or the elimination of the
          problem. All the expenses that will be incurred, will be paid by the
          Lessee immediately and/or from whoever the Lessor will demand payment.

          The Lessee is obligated herewith to reimburse the Lessor for any sum
          that was paid by the Lessor according to this clause, including
          delinquent interest from the day of the payment by the Lessor to the
          day of the reimbursement by the Lessee. The bills of the Lessor on the
          amount of the expenditure and of other expenses that are mentioned in
          this agreement are full proof and the Lessee is required to pay them
          immediately, after the first request.

10.6      Not to hang and/or erect any signs or markings on parts of the Rented
          Property and not on any other part of the structure and/or the roof
          without the written permission of the Lessor, who will have the right
          to decide upon the size and shape of the signs and the specific place
          where to place them.

          The Lessor is allowed to remove, at the expense of the Lessee any sign
          that is placed by the Lessee in violation of the instructions in this
          clause.

          The Lessee declares that he has no objections to any signs that will
          be placed on the roof by the Lessor or by any third party, with the
          permission of the Lessor. Also, the Lessor is allowed to attach signs
          to the walls of the structures that include the name of the Lessor,
          his logo and other information pertaining to the Lessor.

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10.7      The Lessee will not install any equipment that may cause damage to the
          Rented Property, and will not place on the floor in the Rented
          Property weight which is over the limit for which the floor was
          designed to hold.

10.8      The Lessee is not allowed to use, for his personal use, the public
          pavements, the roads and any other public place that is outside the
          Property of the Rented Property, but may use it for the purpose for
          which those public places were designed for.

11.       OBTAIN PERMITS

11.1      The Lessee is responsible for obtaining the appropriate permits
          required by the law in order to operate his enterprise.

11.2      The Lessee declares that he is aware of the fact that the Lessor is
          not responsible in any way to obtain any permits that are required for
          the purpose of running the business of the Lessee

11.3      If for some reason, the Lessee can not obtain a permit to run his
          business, the Lessee will not be exempt from paying in full his rental
          fees up to the end of the Leasing Period in accordance with this
          agreement.

12.       ELECTRICITY AND WATER

          The Lessee acknowledges that he knows that the supply of electricity
and/or water to the Rented Property is subject to his negotiations between the
Electric Company and the local authorities, all according to the utility
required.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   14

[Page 8]

12.2      The Lessee declares that not having electricity and/or water service
          at the Rented Property, will not affect his responsibilities according
          to this agreement, if the reason for that has nothing to do with the
          Lessor's doings.

12.3      --------------------------------------(blank)

12.4      Both parties will check and write down the physical condition of the
          Rented Property, the water and electrical meters on the start day and
          the vacating day of the Lessee from the Rented Property.

          POSSESSION OF THE RENTED PROPERTY AND REPAIRS

13.1      Both parties agree that the Lessor is responsible to repair at his
          expense just the damages caused to the exterior walls and to the roof
          of the structure, excluding whitewashing and lime.

13.2      The other parts of the structure, including the mutual property as it
          was defined in clause 15 of the following, apparatuses, electrical
          systems, water and sewer, sanitary appliances, fences and gates that
          were not mentioned in clause 13.1 above, their maintenance and repair,
          will be at the expense of the Lessee only. The Lessee will be
          responsible for and at his own expense also and/or any repair to the
          Rented Property that is not considered reasonable wear and tear, Wear
          and tear that is the direct cause of the Lessee in the Rented Property
          is not considered reasonable wear and tear, and the Lessee is
          responsible for repairing any damage that was caused as a result of
          the use of the Rented Property. In any case the Lessee will repair any
          damage that was caused to the Rented Premise and that its value is not
          over one hundred dollars for the repair.

13.3      The Lessor will repair in a reasonable amount of time the sections of
          the Rented Property which are the responsibility of the Lessor to
          maintain as detailed in clauses 13.1 and 13.2 above, only if the
          reason for that damage is reasonable wear and tear, and subject to
          clause 13.4.

13.4      The Lessee will inform the Lessor of any damage caused to any part of
          the Rented Property, as detailed in clause 13.1 in the above, in a
          reasonable time and not later than forty eight hours from the time of
          the discovery of the damage. In the event that the Lessee did not
          inform the Lessor as aforesaid, the Lessee will have to bear the cost
          of the additional expenses incurred by the Lessor as a result of not
          being informed in time. In addition to the above mentioned the Lessee
          is obligated to inform the Lessor within forty eight hours about any
          damage that the Rented Property had suffered or to any part of the
          Rented Property, which is not detailed in clause 13.1 in the above,
          whether it was caused by him or whether it was

<PAGE>   15

          caused by someone else (hereafter: "Event".) In case the Lessee did
          not inform the Lessor within the required period, the Lessee will have
          to pay for the damages to the Rented Property as detailed in clause
          13.1 in the above mentioned.

13.5      The Lessee is obligated to use the Rented Property in a responsible
          and careful manner, and to prevent any spoiling or damage to it, and
          each time that any damage or spoiling occurs to the Rented Property or
          to whichever part of the Rented Property that he is associated with
          and/or by his employees and/or his guests and/or by whoever enters the
          Rented Property with his permission, to immediately repair at his
          expense any damage or spoiling such as mentioned. In the event that
          the Lessee does not fulfill this obligation in the clause of this
          agreement, the Lessor is allowed, without affecting his rights to any
          remedy or measure, to claim from the Lessee either during the leasing
          period and even afterwards, the sum or the estimated sum of the
          repairs, or the estimated expenses of each repair, and this even
          before the Lessor begins to repair the damaged area or have the
          damages fixed.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   16

[Page 9]

14        CHANGES TO THE RENTED PROPERTY

14.1      The Lessee is obligated not to make changes in the Rented Property
          whatsoever, and in addition not to add or remove any part without
          getting in advance written permission from the Lessor.

14.2      Any addition or change in the ceiling or in the walls and/or on the
          floor of the Rented Property and in any other part of the Rented
          Property, will become part of the Rented Property, and will belong to
          the Lessor, and the Lessee is required to leave them behind in the
          Rented Property at the end of the lease period, and is not allowed to
          request from the Lessor to share the expenses for them, in any event,
          all those that are mentioned above will not be considered as key
          money.

14.3      In spite of the aforesaid in the sub-clause 14.2, the Lessor has the
          right to request from the Lessee at any time until the end of the
          leasing period to remove and/or clear out all the changes an/or
          additions and/or the improvements in the Rented Property or part of
          them, and in this case that the Lessee is required to do so on his own
          expense, and to return the Rented Property at the end of the leasing
          period to the condition it was in at the beginning of the leasing
          period. In the event that the Lessee refuses to do so, the Lessor has
          the right to do so at the expense of the Lessee. If the Lessee will
          not pay the Lessor the expenses for the execution of this labor within
          seven days from the day that this request was presented, the Lessor is
          allowed to sue for payments, plus delinquency interest.

14.4      The Lessee will pay the Lessor rental fee according to this agreement,
          even if the leasing period has ended, for the period that was required
          to return the Rented Premise to its original condition.

15.       JOINT UTILITIES

15.1      The Lessee is allowed to use the joint utilities and other joint
          facilities, if such exist, (hereafter: "Joint Property") in the
          building.

15.2      The Lessee will share together with the other tenants in the building,
          in the maintenance expenses, of cleaning, maintenance of the Joint
          Property in the building, including the shelter, the gardens,
          lighting, water, sewer and drainage.

15.3      The Lessee will share the expenses according to clause 15.2 as
          mentioned above in accordance with the proportional area of the Rented
          Property to the area of all the units in the building.

<PAGE>   17

15.4      The Lessor will be allowed, according to his explicit point of view to
          execute those acts according to clause 15 including its sub-clauses,
          or a number of them, by himself or through someone else, on the
          condition that the Lessor will announce his intent to the Lessee in
          writing 30 days in advance.

15.5      Once the Lessor has announced his intention to provide those services
          as aforesaid in clause 15.4 above, the Lessee will pay to the Lessor
          any sum that the Lessor will spend for providing those services in
          accordance to the fixed division in that clause.

15.6      The rule for each sum that the Lessee is required to pay according to
          this clause, is the same rule that applies to leasing fees for each
          matter and affair.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   18

[Page 10]

16        RESPONSIBILITY TOWARDS THIRD PARTY.

16.1      The Lessee is responsible towards the Lessor and towards a third
          party, for any damage of any kind and type, and whatever the cause
          might be, and which mentioned overall here without having a closed
          list. Damage that will occur to any person and/or property, including
          but without affecting the generality as aforesaid above. - to visitors
          in the Rented Property, to the employees of the Lessee and to every
          person that is found within the boundaries of the Rented Property,
          that resulting from the condition of the Rented Property and/or the
          equipment that was installed there, and/or the work, the business, the
          act or the lack of acts that will take place there, and/or the conduct
          of the Lessee and/or his employees, and/or his clients, and/or his
          suppliers and/or those who provide services who are within the Rented
          Property or near by, in service and/or with the permission of the
          Lessee, whether he is in the Rented Property with permission or if
          without, whether he is there by chance or for any other reason.

16.2      Without affecting from the instructions in sub-clause 16.1 that is
          mentioned above, the Lessee is required to use any means possible to
          abate any claim or request that will be served against the Lessor for
          any damage as aforesaid in sub-clause 16.1 above, and to compensate
          the Lessor for the total amount that he will be forced to pay as a
          result of this claim and/or request as aforesaid and as well for all
          his other expenses in regards to that, immediately after the first
          request from the Lessor.

17.       NOT SUBJECT TO THE LANDLORD AND TENANT LAW

17.1      The two parties declare that they know that in accordance with the
          landlord and tenant law (integrated version) 1972 (hereafter "the
          Law"), thus the Lessee is not protected, by law and/or other ruling,
          with all its amendments and/all in general, and this agreement will
          not be protected by it.

17.2      The Lessee declares here explicitly that he did not pay and/or give,
          and will not give any type of key money for the Rented Property and/or
          in connection to it, and therefore the landlord tenant law will not
          apply to him and/or because of the Rented Property, and/or in the
          leasing relationship between the parties, and this among others in
          accordance as aforesaid in the law.

18.       BANK GUARANTEE (clause 1.10.)

18.1      In order to assure all the responsibilities of the Lessee according to
          this agreement, including and without affecting the rest of the
          responsibilities of the Lessee, the eviction of the Lessee on time,
          the payment of any damage that will be incurred to the Rented
          Property, payments of the rental fees and the other payments that are
          imposed on the Lessee in accordance with this agreement, the

<PAGE>   19

          Lessee will deposit with the Lessor, as aforesaid in clause 1.10
          (INTENTIONAL space) and on the execution of this agreement, a bank
          guarantee for a period of 40 days after the end of the leasing period
          and an amount that is no less from the amount of the rental fees for
          36 months.

18.2      The bank guarantee that is mentioned above will be realized if the
          Lessee does not abide by any of his obligations according to this
          agreement, including if the Lessee does not vacate the Rental Property
          on time and/or will not pay any payment of the leasing fees and the
          other payments imposed on him in accordance with this agreement and
          also if he doesn't pay damages that incurred to the Rental Property.

18.3      The Lessee is required to produce the signature of his managers on a
          guarantee statement as detailed in clause 28 of this agreement.

19.       REMEDIES

19.1      Without affecting the responsibilities of the Lessee according to this
          agreement, and the rights of the Lessor to receive any measure or
          other remedy, this agreement will be considered by the choice of the
          Lessor as null and void and the rights of the Lessee to occupy the
          Rental Premise will end immediately and the Lessor is allowed to
          demand the immediate eviction of the Lessee from the Rented Property
          in the following occurrences.

The Lessor:                                            The Lessee:
Mirobin  Ltd.                                          An. Bays
(Written in Hebrew and Roman characters)               Fibronics Ltd.
(illegible handwritten signature)             (illegible handwritten signature)

<PAGE>   20

[Page 11]

19.1.1    In the event that the Lessee violates or does not abide by any
          obligation or by any terms that are included in this agreement.
19.1.2    The Lessee is declared as bankrupt and/or a receiver is appointed for
          his assets and/ or a liquidator is appointed for him.
19.1.3    The Shareholders made a transfer of rights of their shares in the
          company of the Lessee, without getting the permission of the Lessor in
          advance and in writing to transfer the above mentioned, after a proper
          appeal in advance and in writing, the Lessor would not object to such
          transfer if it is reasonable in the opinion of attorney M. Matry, and
          will not affect the securities and the obligations of the Lessee,
          solely that the guarantors will continue to be the guarantors of the
          Lessee, as long as the guarantees were not changed to the satisfaction
          of the Lessor.

19.2      The Lessee is obligated to pay the Lessor Rent for the entire period
          which is mentioned in the agreement in the event that the Lessee is
          evicted from the Rented Property before the end of the lease period as
          a result of breaching a term or an obligation in the agreement, and
          this also if the Rented Property will be vacated for any other reason
          because of the Lessee.
19.3      Each party that will breach the agreement will have to compensate the
          other side for any kind of damage that is caused to the other party as
          a result of this breach, and this without affecting the rights of the
          parties for any other measure according to the law and/or this
          agreement.
19.4      The Lessee declares that he knows that only because of this lease
          agreement, that he is with a Lessee which is a certified enterprise,
          an approved enterprise was given to the Lessor and the Lessor is
          obligated to compensate the Lessor for all damage caused to him, if
          for any reason the Lessee will withdraw from the fulfillment of this
          agreement and/or will take any action that will cancel or prevent from
          the Lessor his status of a certified enterprise.

19.5      Without affecting the rights of each one of the parties to cancel the
          agreement legally, and/or to bring for any measure and/or any other
          remedy from this virtue and/or any judgement, in the event that the
          Lessee will breach any fundamental provision from the provisions of
          this agreement and does not amend it within 7 days from their
          inception, the Lessee will have to compensate the Lessor in the sum of
          $50,000, in new Shekels, according to the representative rate of
          exchange of that payment date. This sum is a fixed sum as it was
          agreed in advance, and it is in addition to the right of the Lessor to
          sue for any other sums for damages when he becomes aware of it.

20.       EVICTION FROM THE RENTED PROPERTY

20.1      The Lessee is obligated to vacate the Rented Property at the end of
          the leasing period, or if the Lessee breaches the agreement and the
          Lessor instructs him to vacate the Rented premise prior to the end of
          the leasing period, according to the

<PAGE>   21

          earlier date, and to return the Rented Premise to the Lessor vacated,
          and free of any person or object and in good condition, proper and
          ready to be used as it was at the time when he received it, excluding
          the wear and tear that occurred as a result of normal and reasonable
          use.

20.2      In the event that the Lessee does not vacate the Rented Property, in
          the manner and the date that he must according to the conditions of
          this agreement or as a result of canceling it legally by the Lessor,
          thus, without affecting any other right that the Lessor has legally,
          and/or according to this contract, the Lessee is required to pay the
          Lessor, in new Shekels, the sum of $1,000, according to the
          representative rate exchange of the U.S. dollar that is announced by
          the Bank Of Israel on the required payment date, for every late day or
          delinquent day of holding the Rental Premise and not returning it to
          the Lessor, and it is fixed compensation that was agreed to in
          advance. This payment according to this clause does not award any
          right to the Lessee to hold on to the Rented Property.

21.       CANCELLATION OF THE AGREEMENT

21.1      The two parties agree that this agreement will be considered null and
          void when each of the following which are detailed below will occur:

          1.   If there is a possessory order against the Lessee
          2.   If there is a winding up order against the Lessee.
          3.   If a receiver is appointed to handle the property
               of the Lessee or part of it.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   22

[Page 12]

The cancellation will go into effect on the very day that the order of
repossession against the Lessee is issued, or the motion for the winding up, or
the motion to enforce the mortgage and/or the appointment of the property
receiver, on the condition that the order which is mentioned above was not
cancelled within 45 days from the date that the letter from the company was
received.

21.2      In addition to measures that the Lessor is allowed to demand according
          to this agreement and or by the law without affecting the generality
          of the above mentioned, the Lessor is allowed to terminate the
          agreement immediately in the following events that are listed below:

          A. Not producing promissory notes as detailed in clause 6.9 above, and
          a bank guarantee as detailed in clause 18 above.
          B. Not to produce a letter of attorney or terminating it, as detailed
          in clause 6.8 above.
          C. Misuse of the Rented Property as mentioned in clause 3 above.
          D. Transfer of rights to use the Rented Property to another, in
          conflict to the instructions in clause 10.1 that is mentioned above.
          E. Delinquent in payments of any sum that the Lessee is obligated to
          pay the company within 7 days of the pay date.
          F. Causing disturbances in a manner that can disrupt the businesses
          neighboring the Rented Property.
          G. Taking any action in conflict with the instructions in clause 14.1
          of this agreement as mentioned above.

21.3      Upon announcing the termination of the agreement, the Lessee has to
          vacate the Rented Property within 15 days from the date of receiving
          the notice.
21.4      Nothing in this clause can affect the rights of the Lessor according
          to this agreement or according to the law.

22.       LEGAL EXPENSES AND OTHERS

22.1      It is declared and agreed between the two parties that in the event
          that the Lessee does not vacate the Rented Property at the end of the
          leasing period, or after he was informed in writing of the termination
          of the lease according to clause 21 of this agreement, thus, in
          addition to all the abiding measures in this agreement and according
          to the law, the Lessee has to pay all the expenses that the Lessor
          incurred in pursuing his legal remedies against the Lessee in regards
          to every hearing or legal suit or in the execution office including
          fees for the lawyers for the Lessor. (hereafter: "Legal Expenses")

          In order to remove any doubt, the Lessee is required to reimburse the
          Lessor for all the reasonable expenses that the Lessor incurred in
          serving the legal suit, and/or for the implementation of the
          procedures even if those expenses were not

<PAGE>   23

          approved for payment by the court or the execution office, for one
          reason or another. The detailed expenses that are mentioned in this
          clause will be included in the legal expenses of the Lessor and they
          will be subject to the instructions in clause 22.2 and 22.3 as
          follows.

22.2      The Lessee will pay the Lessor his legal fees soon after a written
          request was sent, plus the delinquent interest from the date of the
          request letter up to the actual payment.
22.3      The two parties agree that the documents of the Lessor will serve as a
          final proof and will be decisive regarding the amount of legal
          expenses.

23.       GUARANTEE AND LIABILITY

          The Lessee promises that in order to fulfill his obligation according
to this agreement, he will sign a guarantee together with guarantors that will
be approved by the Lessor, in the clause that is detailed in clause 28.

24.       The two parties agree that all the sums that they owe one another
          because of this agreement or because of any other reason, will not be
          used as write-off.

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   24

[Page 13]

25.       It is agreed upon that clauses 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
          14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 of this agreement will be
          considered as basic and essential and the breach of any one of them
          will be considered as an essential breach of this agreement, as this
          term is explained in the remedies of the contract laws of 1970.

26.       GENERAL PREVISIONS

26.1      The Contract Laws (Remedies for breach of agreement) 1970 will apply
          on the breach of this contract.
26.2      Any waiving, extension, or concession or abstaining from taking action
          in general or on time, on the part of the Lessor or the Lessee, will
          not be viewed as affecting the rights of the Lessor or the Lessee
          according to this agreement.
26.3      Any changes in the terms of this agreement will be valid only if it
          was done in writing and was signed by both parties.
26.4      The two parties declare that they studied and read the agreement
          thoroughly and signed it on their free will when they understood its
          content.
26.5      The Lessee will bear the stamping sum of this agreement of 5,510 new
          Shekels and also will share the legal expenses of the Lessor in the
          writing of this agreement in the sum of 10,000 new Shekels + value
          added tax, meaning, each party will pay the total of 5,000 new Shekels
          plus value added tax.
26.6      The two parties agree that the authorized court in Haifa district will
          be chosen as the only court to handle any matter regarding this
          agreement.

27       NOTICES

                    The addresses of the two parties for the purpose of this
          agreement will be as listed in the introduction to this agreement. Any
          notice that will be sent by registered mail with returned receipt from
          one party to the other, will be considered as if it was delivered
          after 72 hours from the sending date, and if it was hand delivered -
          at the time of the delivery.

          The addresses of both parties as detailed in this agreement will be
          viewed as their residence for the purpose of delivery of the court
          documents.

          As evidence the two parties signed

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

<PAGE>   25

[Page 14]

GUARANTEE NOTE:

28.       PERSONAL GUARANTEE

We the undersigned:

1.                        I.D.                         From -

2.                        I.D.                         From -

(hereafter: " Managers of the Lessee)

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

K5Mirobin

The Lessor:                                             The Lessee:
Mirobin  Ltd.                                           An. Bays
(Written in Hebrew and Roman characters)                Fibronics Ltd.
(illegible handwritten signature)              (illegible handwritten signature)

[TRANSLATOR'S NOTE: ON THE BOTTOM OF EACH PAGE THERE IS THE LOGO OF THE ATTORNEY
IN HEBREW AND ROMAN CHARACTERS]

Matry Moshe Law Offices and Notaries Tel: 04-676876.<PAGE>   1

                                                                  EXHIBIT 10.14

                                 OEM PURCHASING
                                    AGREEMENT

                                     #99-04

                                  PREPARED FOR

                                     UNISKOR

                           (acquired by Flextronics)

                                  SUBMITTED BY

                                  NBASE-XYPLEX,
                                 CHATSWORTH, CA

<PAGE>   2
                              PURCHASING AGREEMENT
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
Section                                                                       Page
<S>                                                                           <C>
 1.0  PURPOSE...............................................................   3

 2.0  SCOPE.................................................................   3

 3.0  TURNKEY AGREEMENT.....................................................   3

 3.1  PURCHASE ORDERS ......................................................   3

 3.2  FORECASTS.............................................................   3

 3.3  JIT PRODUCT AVAILABILITY..............................................   4

 3.4  QUARTERLY COST ANALYSIS...............................................   4

 3.5  ENGINEERING CHANGES...................................................   5

 3.6  INVOICING/PAYMENT ....................................................   5

 3.7  PURCHASED/CONSIGNED EQUIPMENT ........................................   5

 3.8  PACKAGING FOR SHIPMENT................................................   6

 3.9  SHIPMENT..............................................................   6

 3.10 INSPECTION ...........................................................   6

 3.11 NON-CONFORMING SHIPMENTS .............................................   6

 3.12 WARRANTY AND LIMITATIONS .............................................   6

 3.13 APPROVED VENDORS .....................................................   7

 3.14 REGULATORY REQUIREMENTS ..............................................   7

 3.15 GENERAL ..............................................................   8

 4.0  TERMINATION ..........................................................  11

 4.1  EFFECT OF TERMINATION ................................................  11

 AGREEMENT TERM SHEET ......................................................  13

 CONFIDENTIAL INFORMATION NON-DISCLOSURE STATEMENT NBASE-
 XYPLEX, CHATSWORTH ........................................................  14
</TABLE>

<PAGE>   3
1.0     PURPOSE

        This Agreement #99-04 ,is hereby made this 9TH DAY OF DECEMBER, 1999
        between MRV Communications, Inc. doing business as NBase-Xyplex, 8928
        Fullbright Ave., Chatsworth, CA, USA ("Buyer") and Uniskor, Ramat
        Gavriel Ind. Zone, Migdal Hamek, Israel ("Seller") for the purchase of
        goods and services as specified in this document and it's attachments
        and approved by the authorized representatives as shown on the Purchase
        Agreement Signature Sheet.

2.0     SCOPE

        Seller agrees to manufacture, test and make available to Buyer the goods
        and services as described in the Agreement Term Sheet in accordance with
        the product design, manufacturing and test specifications provided by
        Buyer. Purchase Orders and/or notices issued by Buyer and referencing
        Agreement will constitute the sole authorization for Seller to take
        action or incur any costs for which Seller expects reimbursement from
        Buyer. Seller to stock inventory at mutually agreed location for release
        to Buyer on a JIT basis (section 3.3).

        Seller is responsible for identification of long lead time and
        Non-Cancelable/Non-Returnable (NC/NR) materials. Seller must obtain
        written authorization from Buyer prior to procuring long lead time
        materials required per forecast in excess of inventories committed to by
        released purchase orders. Seller must obtain written authorization from
        Buyer prior to procuring any NC/NR materials.

        Additional inventories maintained by Seller for adherence to committed
        delivery schedules are at the Seller's discretion and are not billable
        to Buyer unless prior agreement has been obtained.

3.0     TURNKEY AGREEMENT

3.1     PURCHASE ORDERS

        Buyer shall issue a blanket/non-binding purchase order to allow for
        deliveries to be processed and invoices paid. Each Purchase order will
        specify goods and services to be received from Seller under the
        provisions of this Agreement by issuing Purchase Orders in accordance
        with the information described in the Term Sheet (Attachment "A").
        Purchase Orders shall contain the following information:

        *       Type of product and quantity ordered

        *       Unit Price as defined in the Term Sheet

        *       Reference to this Agreement

        Seller agrees to accept all Purchase Orders issued under the provisions
        of this Agreement for the term of the Agreement.

3.2     FORECASTS

        -       A Schedule/Forecast report will be provided on a monthly basis.
                The report will include 120 days worth of committed quantities
                on a monthly basis and eight months worth of a non-binding
                forecast.

        -       Buyer may make changes to Schedules and Forecasts including
                reschedules and quantity changes by sending an updated report to
                Seller in accordance with the procedures in this section.

        A.      Buyer may increase schedule or forecast on any products per the
                purchase order. Seller will make every reasonable effort to
                accommodate reschedule requests without expedite fees or with
                reasonable,

                                     Page 3
<PAGE>   4
                substantiated charges. Any disagreement with the changes
                provided to the Seller must be submitted to the Buyer within 5
                business days.

        B.      If, upon termination of the Agreement, Buyer has not purchased
                at least the total committed quantity as listed on the monthly
                forecast/commitment sheet, Buyer accepts liability for any
                non-standard products and inventory of unique component parts
                substantiated by Seller and in accordance with provisions
                outlined in section 2 of this Agreement. Seller will make
                reasonable attempts to restock or utilize common materials and
                to resell or otherwise promptly attempt to mitigate Buyer's
                liability.

3.3     JIT PRODUCT AVAILABILITY

        A.      Seller will stock a minimum quantity, as shown on the
                schedule/forecast report, of Finished Product to replenish NBase
                stock consumed by actual customer orders and will be shipped to
                NBase on a weekly basis (or as necessary to meet customer
                orders). Quantities consumed should be replaced within one (1)
                week from the time it is shipped. Any product put into stock up
                to the minimum quantity will be taken by the Buyer within 45
                days of the time product was completed.

        B.      Seller will stock one (1) months worth of forecasted generic PCB
                assemblies and final configuration material to be used to
                replenish Finished Product as consumed. When stocked quantity
                goes below two (2) weeks worth of forecasted requirements a
                replenishment kit of one (1) months forecast will be released
                for assembly.

        C.      Seller will stock a minimum of two (2) months worth of component
                stock to replenish generic PCB assemblies once they are reduced
                to two weeks worth of forecasted quantities.

        D.      Seller will have all material required to build one (1) months
                worth of forecasted quantities.

        Example of JIT inventory status.

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------------------------------------
               min qty              1st month            2nd month             3rd month              4th month
-----------------------------------------------------------------------------------------------------------------------
<S>            <C>                  <C>                  <C>                   <C>                    <C>
Status of      Complete             Finished generic     Material in stock     Material in stock      Material on order
material       Finished/Boxed       PCBA and             and ready to be       and ready to be        and scheduled to
               Product              Packaging            built as needed.      build as needed.       be received by the
                                    material available                                                first of the
                                    by the 1st of the                                                 following month.
                                    month
-----------------------------------------------------------------------------------------------------------------------
</TABLE>

3.4     QUARTERLY COST ANALYSIS

        Buyer and Seller agree to review product costs quarterly for all or part
        of the Agreement at the request of either party. Buyer and Seller
        further agree to re-negotiate pricing should reductions based on
        material cost, quantity, learning curve, efficiency improvements,
        automation, et cetera occur as well as increases based on material cost,
        order reductions, etc., occur. Seller agrees to substantiate material
        cost changes by submitting copies of purchase orders, invoices or other
        documentation acceptable to Buyer if requested.

        Buyer may be responsible for additional charges consisting of costs and
        expenses not defined in the Term Sheet where the charges fall into one
        of the following categories:

        A.      Changes made by Buyer to Product design or manufacturing
                specifications.

                                     Page 4
<PAGE>   5
        B.      Any inventory rendered obsolete by a change to the Product
                design or manufacturing specification; provided, however, that
                such inventory is not in excess of Buyer's current quarterly
                forecast commitment or authorized by Buyer under the provisions
                outlined in section 2 of this Agreement.

        C.      Non-recurring charges for tooling, fixtures and programming. All
                tooling, fixtures and programs to be property of Buyer.

3.5     ENGINEERING CHANGES

        A.      Engineering Changes proposed by Seller: Seller shall notify
                Buyer of any proposed change to any Product (an "Engineering
                Change") and shall supply Buyer with a written description of
                the change including effect on price as well as cost savings
                permitted by the Engineering Change. Buyer may elect to evaluate
                units and modifications specified as part of the proposed
                change. Buyer shall inform Seller of approval or disapproval
                within a period of time negotiated after Buyer's receipt of
                written request. Seller may not change, modify or in any way
                alter the design or process without Buyer's prior written
                consent. Seller must adhere to mutually agreed delivery
                schedules until such time as Buyer approves or disapproves
                requested changes. All Engineering Changes accepted by Buyer
                become part of the Product design and thereby the property of
                the Buyer.

        B.      Engineering Changes requested by Buyer: Buyer may request, in
                writing, that Seller incorporate an Engineering Change into the
                Product. The released ECN will include a description of the
                requested change sufficient to permit Seller to evaluate its
                feasibility. Seller shall inform Buyer, in writing, of terms and
                conditions under which it will incorporate the Change within a
                period of time negotiated after Seller's receipt of written
                request.

        C.      Seller's written response shall include cost savings or increase
                and effectivity lead time. If Buyer accepts the Seller's
                response, the "Products, Pricing and Requirements" section of
                the Term Sheet and any attached Product Specifications and Test
                Specifications may be amended. Seller shall not unreasonably
                refuse to incorporate Buyer's Engineering Changes in the Product
                when requested by Buyer.

3.6     INVOICING/PAYMENT

        Seller shall invoice Buyer upon receipt of material at inventory
        location mutually agreed upon by Buyer and Seller and in accordance with
        unit price listed on Term Sheet.

3.7     PURCHASED/CONSIGNED EQUIPMENT

        A.      Buyer may consign equipment to Seller for the purpose of
                manufacturing and/or testing product. This equipment may include
                assembly fixtures, test fixtures, software, burn-in/run-in units
                or similar proprietary equipment.

        B.      Seller shall maintain such (A) equipment in good working order
                at all times, including periodic verification of accuracy, for
                the term of the Agreement.

        C.      Seller shall return all Buyer consigned equipment to Buyer upon
                termination of the Agreement or at completion of Seller's
                warranty and/or service obligations.

        D.      Seller shall at all times maintain an updated list of Buyer
                consigned equipment as well as any additional equipment that may
                have been bought, leased, rented or otherwise provided by Seller
                but paid for by Buyer.

                                     Page 5
<PAGE>   6
3.8     PACKAGING FOR SHIPMENT

        Seller shall package the Products for shipment or receipt to inventory
        location in accordance with Buyer's packaging instructions or, if
        unspecified, in accordance with reasonable accepted commercial practices
        such that the Product arrives at Buyer's location in an acceptable
        condition.

3.9     SHIPMENT

        All goods ordered under this Agreement and shipped per requirement shall
        be shipped F.O.B. Seller's "Shipping Point" following Buyer defined mode
        of transport.

3.10    INSPECTION

        Buyer reserves the right to inspect any shipment of Product and will
        notify Seller of any count discrepancies or defects found relative to
        product specifications, performance requirements, test
        result/certifications, mechanical or cosmetic characteristics. Seller
        consents to source inspection, visits or surveys by Buyer, Regulatory
        Agency or Buyer's customer for the purpose of auditing processes and
        determining that the subcontracted assemblies conform to specifications.
        Any activity found to be detrimental will require Seller to respond with
        appropriate corrective action. Failure to do so could result in contract
        termination.

3.11    NON-CONFORMING SHIPMENTS

        Prior to returning any non-conforming Product to Seller, Buyer shall
        obtain a "Return Material Authorization" (RMA) number from Seller.
        Seller shall issue said RMA number within five (5) working days notice
        of request by Buyer.

        A.      In-warranty product shall be repaired by Seller free of charge.
                All transportation costs to and from Seller shall be borne by
                Seller. Within five (5) days after receipt of returned Product,
                Seller shall evaluate the units and confirm non conformance.
                Within ten (10) days after receipt of returned Product, Seller
                shall ship an equivalent quantity of repaired or new units to
                Buyer.

        B.      Out-of-warranty product shall be repaired by Seller at a charge
                to be mutually agreed upon. All transportation costs to and from
                Seller shall be borne by Buyer. Seller shall notify Buyer of all
                charges within five (5) working days after receipt of Product.
                Only those charges approved in writing by Buyer shall be allowed
                as billable by Seller. Seller shall return repaired product to
                Buyer within thirty (30) calendar days.

3.12    WARRANTY AND LIMITATIONS

        Seller represents and warrants to Buyer as follows:

        A.      Each unit of the Products listed on the Term Sheet shall conform
                to it's Product Specifications and Product Test Specifications
                as listed on the Signature Sheet and as defined by part number
                and description on the Purchase Order.

                                     Page 6
<PAGE>   7
        B.      Each unit of each Product shall be free from defects in
                workmanship and materials for a warranty period of twenty four
                (24) months from receipt of new product at Buyer's location,
                provided that the materials portion of the warranty shall not
                apply to the following:

                1.      Any materials consigned or supplied to Seller by Buyer.

                2.      Any unit of the Product that has been abused, damaged,
                        altered or misused by any person other than Seller after
                        receipt of unit by Buyer.

        C.      Any "In-Warranty" Product that is returned to Seller and
                repaired by Seller for shipment back to Buyer shall be deemed as
                new Product and shall, therefore, be subject to a twelve (12)
                month warranty period starting with receipt at Buyer's location.

        D.      Any "Out-of-Warranty" Product that is repaired by Seller shall
                be deemed as used Product and shall, therefore, be subject to a
                twelve (12) month warranty period starting with receipt at
                Buyer's location.

3.13    APPROVED VENDORS

        Buyer will supply Seller with a list of approved sources for materials
        to assemble products outlined on Term Sheet.

        A.      Electronic components may be procured from sources preferred by
                Seller but must conform to manufacturer's name and part number
                as defined by Buyer's Approved Manufacturer's List supplied to
                Seller.

        B.      Fabricated parts, (sheet metal, PCBs, etc.) should be procured
                by Seller from Buyer's preferred sources but may be procured
                from sources preferred by Seller in accordance with criteria
                acceptable to Buyer.

        C.      Seller accepts responsibility for price, delivery, quantity and
                quality of all electronic components and fabricated parts per
                items A and B above.

        D.      Seller will install components on printed circuit board
                assemblies that are date coded no more than 18 months from date
                of manufacture.

3.14    REGULATORY REQUIREMENTS

        A.      Seller is required to manufacture and control the product as
                defined in the term sheet in accordance with the following
                safety agency guidelines in accordance with construction data
                sheets and any other certifications agreed at time of contract.

                1.      Underwriters Laboratories (UL1950)

                2.      Canadian Standards Association (C22.2 No. 950-M89)

        B.      Seller to provide reasonable access to safety agency inspectors
                as required to audit the facility, the process and/or the
                product for conformance to written guidelines provided by
                NBase-Xyplex, Chatsworth or the respective Agency.

        C.      Seller will maintain registration to (at least) ISO-9002.

                                     Page 7
<PAGE>   8
3.15    GENERAL

        A.      COMPLETE AGREEMENT

        This Agreement, together with its attachments and the purchase orders
        issued under it, constitutes the entire agreement between the parties
        regarding the manufacture, sale and purchase of said goods and services.
        This Agreement supersedes all previous oral or written agreements and
        understandings on this subject between the parties or any of their
        officials or representatives.

        B.      ORDER OF PRECEDENCE

        In the event of conflict in the provisions of the following documents,
        the order of precedence shall be as shown.

                1.      The typed provisions on the face of the Buyer's purchase
                        order

                2.      This Agreement and its attachments

                3.      The preprinted terms and conditions on the back of
                        Buyer's purchase order

        C.      INDEPENDENT CONTRACTOR

                Neither party shall, for any purpose, be deemed an employee or
                agent of the other party. The relationship between parties shall
                be that of independent contractors.

        D.      SEVERABILITY

                In case any provision of this Agreement shall, for any reason,
                be held to be invalid, illegal or unenforceable in any respect,
                except in those instances where removal or elimination of such
                provision would result in a failure of consideration under this
                Agreement, the validity, legality and enforceability of the
                remaining provisions of this Agreement shall in no way be
                affected or impaired thereby, and this Agreement shall be
                construed as if such invalid, illegal or unenforceable provision
                had never been contained herein.

        E.      GOVERNING LAW

                This Agreement shall be governed by and construed in accordance
                with the internal laws of the State of California (without
                reference to the conflicts of law provisions thereof). Each of
                the parties irrevocably consents to the jurisdiction of the
                United States federal courts and the state courts located in the
                State of California in any suit or proceeding based on or
                arising under this Agreement and irrevocably agrees that all
                claims in respect of such suit or proceeding may be determined
                in such courts. Each of the parties irrevocably waives the
                defense of an inconvenient forum to the maintenance of such suit
                or proceeding. Each of the parties further agrees that service
                of process upon such party mailed by first class mail to the
                address set forth for such party in this Agreement shall be
                deemed in every respect effective service of process upon such
                party in any such suit or proceeding. Nothing herein shall
                affect the right of any party to serve process in any other
                manner permitted by law. Each of the parties agrees that a final
                non-appealable judgment in any such suit or proceeding shall be
                conclusive and may be enforced in other jurisdictions by suit on
                such judgment or in any other lawful manner.

        F.      THIRD PARTY BENEFICIARY

                This Agreement is intended for the benefit of the parties
                included herein and no other person shall be entitled to rely
                upon this Agreement or be entitled to any benefits under this
                Agreement.

        G.      ASSIGNMENT

                                     Page 8
<PAGE>   9
                Neither this Agreement nor any rights or obligations herein
                shall be transferred or assigned by Seller, except as described
                below, without the prior written consent of Buyer. This
                Agreement may be assigned by Buyer and Seller to any corporation
                controlling, controlled by or under common control with the
                Buyer or Seller. Seller may assign or transfer rights or
                obligations to an affiliate or subsidiary only upon obtaining
                written consent of Buyer but is not excused of responsibility
                and will remain liable to Buyer for Seller's performance to this
                Agreement.

        H.      AMENDMENTS

                Changes or amendments to this Agreement or its attachments shall
                not be binding upon either party unless made in writing and
                signed by an authorized representative of each of the parties.

        I.      FORCE MAJEURE

                In the event that either party is prevented from performing or
                is unable to perform any of its obligations under this Agreement
                due to an act of nature, fire, casualty, flood, war, strike,
                epidemic, lockout, destruction of production facilities, riot,
                insurrection or any other cause beyond the reasonable control of
                the party invoking this section, and if said party shall have
                used its best efforts to mitigate its effects and if delays or
                failures to perform under this Agreement have not been
                occasioned by an act or omission of said party, notice of delays
                or failures and causes must be given to the other party within
                five (5) days of the occurrence.

                As soon as it is reasonably apparent that the occurrence will
                cause performance obligation delays of more than thirty (30)
                days, either party shall have the right to terminate the
                Agreement under written, mutually approved order.

        J.      COMMUNICATIONS AND NOTICES

                Unless specified otherwise in this Agreement, all communications
                and notices between the parties under this Agreement shall be in
                writing and shall be mailed, telegraphed, faxed, emailed, or
                delivered to the other party at the address set forth below the
                signature of such party, or any other address either party may
                designate in writing.

        K.      EXPENSES

                In the event that a dispute between the parties listed hereunder
                with respect to this Agreement must be resolved by arbitration
                or either party must engage an attorney to represent said party
                in arbitration, the prevailing party shall be entitled to
                receive reimbursement for all associated costs and expenses
                (including, without limitation, attorneys fees) from the other
                party.

        L.      PROPRIETARY INFORMATION

                All knowledge, information and data supplied to Seller by Buyer
                for the purpose of enabling Seller to manufacture or supply and
                deliver goods under this Agreement shall be deemed NBase-Xyplex,
                Chatsworth confidential information under and pursuant to the
                "Confidential Information Non-Disclosure Statement" (attachment)
                executed by the parties listed and shall become binding upon
                execution of this Agreement and its attachments for a period of
                2 years. It shall be assumed by both parties that all such
                information is proprietary unless otherwise stated in writing by
                the party providing said information. In the event that Seller
                is unable to continue to provide product as outlined in term
                sheet, and in accordance with section 11, Buyer shall retain
                Seller's product design and all technical information necessary
                to continue manufacture of product.

        M.      INDEMNITIES

                Seller shall, at no cost to Buyer, indemnify, hold harmless and
                defend Buyer against any suits for, or claims of patent or
                copyright infringement relating to any manufacturing process or
                method or other

                                     Page 9
<PAGE>   10
                proprietary right of Seller due to Seller's manufacturing
                process or method. This indemnity shall not apply where the
                infringement results from compliance with specific written
                instructions from Buyer to Seller modifying the general
                specifications of Seller as to such article covered by this
                agreement not normally used by Seller.

        N.      DESCRIPTIVE HEADINGS

                The descriptive headings of the sections and sub-sections of
                this Agreement are for convenience only and do not in any way
                limit or amplify the terms and provisions of this Agreement.

        O.      WAIVER

                Failure by either party to insist in any instance on strict
                conformance by the other party to any term or provision of this
                Agreement or failure by either party to act in the event of a
                breach will not be construed as a consent to or waiver of any
                subsequent breach of the same or of any other term contained in
                the Agreement.

        P.      YIELD DATA

                Seller will track first-pass yields and provide data on a
                monthly basis to Buyer with results listing quantity tested and
                passed. Yield data to be relevant to ICT, functional test and
                burn-in. Seller to take all appropriate actions to maximize
                yields and minimize costs to Buyer.

        Q.      WORKMANSHIP STANDARDS

                Seller must conform to proper workmanship standards of IPC - A -
                610, class 2 or applicable notes on drawings for producing
                consistent quality.

        R.      FIRST ARTICLE

                Seller will submit a first article lot of up to 5 pieces for
                each part number assembly. Delivery of production lots will only
                be allowed upon successfully passing the first article
                inspection. Seller will document the assembly processes for each
                part number and perform audits to ensure compliance to accepted
                quality levels. Copies of documented processed will be made
                available to Buyer upon request.

        S.      SHIPMENT CERTIFICATION

                Seller will participate in a certification program that would
                allow for direct shipment to NBase-Xyplex, Chatsworth or to
                NBase-Xyplex, Chatsworth's customer. The program requires the
                Seller to provide objective evidence that the processes are in
                control for up to 5 manufacturing lots or on a mutually agreed
                schedule that would eliminate source or receiving inspection on
                the part of NBase-Xyplex, Chatsworth. In the event that quality
                degrades, NBase-Xyplex, Chatsworth reserves the right to
                reinstate inspection of all lots.

        T.      PRODUCT MARKING

                Seller will provide a current listing of all stamp impressions
                or markings that are used on NBase-Xyplex, Chatsworth product
                (e.g., ICT, burn-in, functional test, etc.)

        U.      ELECTROSTATIC DISCHARGE

                Seller will conform to proper ESD measures at all times for
                static sensitive components as well as PCBAs to prevent damage.

                                    Page 10
<PAGE>   11
4.0     TERMINATION

        This Agreement may be terminated as follows:

        A.      At any time upon the mutual written consent of both Parties.

        B.      At the end of the initial term as set forth in item I of the
                Term Sheet. If written notice of intention to terminate this
                agreement is not submitted by at least four months prior to the
                date set forth in Item I of the Term Sheet this agreement will
                be extended another 6 months.

        C.      By either Party at any time upon the occurrence of any one or
                more of the following events of default:

                1.      Failure of the other Party to perform any performance
                        obligation and to cure such failure within thirty (30)
                        days of receipt of written notice from the
                        non-defaulting Party of each failure.

                2.      Failure of the other Party to perform any payment
                        obligation and to cure such failure within thirty (30)
                        days of receipt of written notice from the
                        non-defaulting Party of each failure.

                3.      The seeking of an order for relief under the bankruptcy
                        laws of the United States or similar laws of any other
                        jurisdiction, a receivership for any of the assets, an
                        assignment for the benefit of creditors or the
                        dissolution or liquidation of the other party.

4.1     EFFECT OF TERMINATION

        Upon termination of this Agreement, all rights and obligations granted
        under or imposed by this Agreement shall immediately cease and
        terminate, except for the rights and obligations set forth in sections
        3.12 (Warranty) and 3.15 (General) subsection L (Proprietary
        Information) of this Agreement, and for any cause of action arising
        prior to the time of termination.

The sale of any Product by Seller to Buyer after the termination of this
Agreement shall be governed by the provisions of the Agreement. Nevertheless,
the acts of either party in consummating such sales shall not waive the
termination of the Agreement or renew the Agreement.

                                    Page 11
<PAGE>   12
                       PURCHASE AGREEMENT SIGNATURE SHEET

Purchase Agreement #99-04, between MRV Communications, Inc. doing business as
NBase-Xyplex, Chatsworth ("Buyer") and Uniskor ("Seller").

Seller agrees to provide and sell to Buyer, and Buyer agrees to purchase from
Seller the goods and services described on the attached Term Sheet according to
the provisions set forth in this Agreement.

This Agreement includes this page and the following attachments:

        1.      Attachment "A" - Agreement Term Sheet

        2.      Attachment "B" - Confidential Information Non-Disclosure
                Statement

This Agreement may additionally include the following schedules:

        *       Product Specifications

        *       Product Test Specifications

        *       NBase-Xyplex, Chatsworth consigned tooling/fixtures

Buyer and Seller signatures acknowledge they have read and fully understand the
intent of this Agreement and mutually agree to provisions, terms and conditions
therein.

MRV Communications, Inc. doing business as
NBase-Xyplex, Chatsworth                       Uniskor

BY:                                            BY:
   ----------------------------------             ------------------------------
TITLE:                                         TITLE:
      -------------------------------                 --------------------------

Address:                                       Address:

  8928 Fullbright Ave.                           Ramat Gavriel Ind. Zone
  Chatsworth, CA 91311 USA                       Migdal Hamek, 23108 Israel
  Tel: (818) 772-6235                            Tel: 972-6-6040840
  Fax: (818) 772-0576                            Fax: 972-6-6040850

California Resale # SRAC1386363

Agreement effective date:
                         ------------------------

                                    Page 12
<PAGE>   13
                              AGREEMENT TERM SHEET

I.      Term of Agreement:

        The term of this Agreement begins on the date shown on page 1 of this
        document (Purchasing Agreement Signature Sheet) and terminates on
        DECEMBER 31, 2000.

II.     Product Availability:

        Product availability is to conform to section 3.3 JIT Product
        Availability.

III.    Seller's Payment Terms:

        Seller's Payment Terms for the requirements specified in this Agreement
        are Net 30.

IV.     Products, Pricing and Requirements:

<TABLE>
<CAPTION>
  #           Part No.              Description                    Unit Price
  -           --------              -----------                    ----------
<S>           <C>               <C>                                <C>
  1           EM316E/M          1299007-007 Pkg. Assy. EM316F/M    $53.69 USD
  2           EM316F/M          1299015-003 Pkg. Assy. EM316F/M    $76.116 USD
</TABLE>

Labor rate for testing is based on $12.50 USD. Time studies will be performed to
validate testing times and prices will be modified accordingly.

V.      Penalties will be paid by the Seller to the Buyer for the following
        conditions.

<TABLE>
<CAPTION>
     PENALTY                          CONDITION
     -------                          ---------
<S>                <C>
1% of resale cost  Penalty applies to quantities delayed more
                   then one (1) week from requested release date while
                   quantities requested are less then agreed upon scheduled
                   minimum quantities.

2% of resale cost  Penalty applies to quantities delayed more
                   then two (2) week from requested release date while
                   quantities requested are less then agreed upon scheduled
                   minimum quantities.

3% of resale cost  Penalty applies to quantities delayed more
                   then three (3) week from requested release date while
                   quantities requested are less then agreed upon scheduled
                   minimum quantities.

4% of resale cost  Penalty applies to quantities delayed more
                   then four (4) week from requested release date while
                   quantities requested are less then agreed upon scheduled
                   minimum quantities.
</TABLE>

                                    Page 13
<PAGE>   14
               CONFIDENTIAL INFORMATION NON-DISCLOSURE STATEMENT
                            NBase-Xyplex, Chatsworth

I, Seller, am aware of, have access to and have knowledge of information
concerning important developments, designs, discoveries, inventions and programs
of and by NBase-Xyplex, Chatsworth (Buyer) relating to products, applications,
business and market information.

I understand that Buyer considers this information proprietary and has kept, and
desires to keep, this information a trade secret from it's competitors and
general public.

I recognize and agree that the information which I have obtained or may obtain
in the future about Buyer's products, applications, business and market
information has been received by me in confidence.

I further agree that I will not disclose to any person(s), firm or corporation,
or to any unauthorized person(s) employed by my firm, nor will I use, publish or
disclose any information about such developments, designs, discoveries,
inventions and programs without the prior written consent of an officer of
NBase-Xyplex, Chatsworth.

This confidential information non-disclosure statement also applies to other
employees of my firm designated as authorized to have knowledge of Buyer's trade
secrets.

The term of this confidential information non-disclosure statement shall extend
for a period of (2) two years beyond the date of the last association or contact
with Seller with regards to the Purchasing Agreement or any follow-on Purchasing
Agreements concerning the same product, or until NBase-Xyplex, Chatsworth makes
public the information covered by said Agreement.

Signed -                                    Date -
        -------------------------------           ------------------------------

Please print or type:
Name
     ----------------------------------

Title
     ----------------------------------

Company
       --------------------------------

Address
       --------------------------------

Phone -                                  Ext.-
       --------------------------------       ---------------

                                    Page 14

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