EXHIBIT 10.1
                          SECURITIES PURCHASE AGREEMENT

         SECURITIES PURCHASE AGREEMENT (this "AGREEMENT"), dated as of May 14,
2001, by and among NX Networks Inc., a Delaware corporation, having its
principal office at 13595 Dulles Technology Drive, Herndon, VA 20171 (the
"COMPANY"), and each of the purchasers set forth on the signature pages hereto
(the "BUYERS").

         WHEREAS:

         A. The Company and each of the Buyers individually are executing and
delivering this Agreement in reliance upon the exemption from securities
registration afforded by Rule 506 under Regulation D ("REGULATION D") as
promulgated by the United States Securities and Exchange Commission (the "SEC")
under the Securities Act of 1933, as amended (the "1933 ACT");

         B. The Company has authorized a series of preferred stock, designated
as Series E 8% Convertible Preferred Stock (such shares, together with any
shares of Series E 8% Preferred Stock issued in replacement thereof or as a
dividend thereon or otherwise with respect thereto in accordance with the terms
thereof, being hereinafter collectively referred to as the "PREFERRED SHARES"),
having the rights, preferences and privileges set forth in the Certificate of
Designations, Preferences and Rights attached hereto as Exhibit "A" (the
"CERTIFICATE OF DESIGNATION");

         C. The Preferred Shares are convertible into shares of common stock,
$.05 par value per share, of the Company (the "COMMON STOCK"), upon the terms
and subject to the limitations and conditions set forth in the Certificate of
Designation;

         D. The Company has authorized the issuance to the Buyers of warrants,
in the form attached hereto as Exhibit "B", to purchase within five (5) years up
to three hundred and eighty thousand (380,000) shares of Common Stock (the
"Warrants").

         E. The Buyers desire to purchase and the Company desires to issue and
sell, upon the terms and conditions set forth in this Agreement, (i) an
aggregate of up to nineteen thousand (19,000) Preferred Shares and (ii) the
Warrants to purchase up to three hundred and eighty thousand (380,000) shares of
Common Stock.

         F. Each Buyer wishes to purchase, upon the terms and conditions stated
in this Agreement, the number of Preferred Shares and number of Warrants as is
set forth immediately below its name on the signature pages hereto;

         G. Contemporaneous with the execution and delivery of this Agreement,
the parties hereto are executing and delivering a Registration Rights Agreement,
in the form attached hereto as Exhibit "C" (the "REGISTRATION RIGHTS
AGREEMENT"), pursuant to which the Company has agreed to provide certain


                                       1


registration rights under the 1933 Act and the rules and regulations promulgated
thereunder, and applicable state securities laws; and

          NOW THEREFORE, the Company and each of the Buyers, acting individually
and severally (and not jointly) hereby agree as follows:

          1.   PURCHASE AND SALE OF PREFERRED SHARES AND WARRANTS.

          1.1. PURCHASE OF PREFERRED SHARES AND WARRANTS. Subject to the
               satisfaction (or waiver) of the conditions thereto set forth in
               Section 6 and Section 7 below, on the Closing Date (as defined
               below), the Company shall issue and sell to each Buyer and each
               Buyer severally agrees to purchase from the Company such number
               of Preferred Shares and number of Warrants for the aggregate
               purchase price as is set forth immediately below such Buyer's
               name on the signature pages hereto. The issuance, sale and
               purchase of the Preferred Shares and the Warrants shall take
               place at the Closing (the "Closing"). The Company shall issue an
               aggregate of (i) nineteen thousand (19,000) Preferred Shares and
               (ii) Warrants to purchase three hundred and eighty thousand
               (380,000) shares of Common Stock, for an aggregate purchase price
               of two million four hundred and three thousand five hundred
               Dollars ($2,403,500.00) (the "PURCHASE PRICE").

          1.2. FORM OF PAYMENT. On the Closing Date (as defined below), (i) each
               Buyer shall pay the purchase price for the Preferred Shares and
               Warrants to be issued and sold to it at the Closing by wire
               transfer of immediately available funds to the Company in
               accordance with the Company's written wiring instructions annexed
               hereto as Schedule 1.2, against delivery of duly executed
               certificates representing such number of Preferred Shares and
               duly executed Warrants which such Buyer is purchasing and (ii)
               the Company shall deliver such certificates and Warrants duly
               executed on behalf of the Company, to the Buyer, against delivery
               of such Purchase Price. The certificates representing the
               Preferred Shares and the Warrants purchased by each Buyer shall
               be delivered to such Buyer, or his representative, upon
               confirmation to the Company of the Federal Funds wire number
               designating the funds transferred by such Buyer.

          1.3. CLOSING DATE. Subject to the satisfaction (or waiver) of the
               conditions thereto set forth in Section 6 and Section 7 below,
               the date and time of the issuance and sale of the Preferred
               Shares and the Warrants pursuant to this Agreement (the "Closing
               Date") shall be 9:00 a.m. Eastern Standard Time on May 14, 2001
               at the offices of Bryan Cave LLP, 700 Thirteenth Street, N.W.,
               Washington, D.C. or at such other location and time as may be
               agreed to by the parties.

          2.   BUYERS' REPRESENTATIONS AND WARRANTIES. Each Buyer, acting
               individually and severally (and not jointly) represents and
               warrants to the Company solely as to such buyer that:

          2.1. INVESTMENT PURPOSE. As of the date hereof, the Buyer is
               purchasing the Preferred Shares and the Warrants for its own
               account and not with a present view towards the public sale or
               distribution, except pursuant to sales registered or exempted
               from registration under the 1933 Act.


                                        2


               The Buyer does not agree to hold the Preferred Shares, the
               Warrants or the Common Stock issuable upon conversion of the
               Preferred Shares (the "CONVERSION SHARES") or as dividends
               thereon (the "DIVIDEND SHARES") or upon exercise of the Warrants
               (the "WARRANT SHARES") for any minimum or other specific term and
               reserves the right to dispose of all or any of such securities at
               any time in accordance with or pursuant to a registration
               statement or an exemption under the 1933 Act. The Preferred
               Shares, the Warrants, the Conversion Shares, the Dividend Shares
               and the Warrant Shares are sometimes collectively referred to
               herein as the "Securities".

          2.2. ACCREDITED INVESTOR STATUS. The Buyer is an "accredited investor"
               as that term is defined in Rule 501(a) of Regulation D (an
               "ACCREDITED INVESTOR").

          2.3. RELIANCE ON EXEMPTIONS. The Buyer understands that the Securities
               are being offered and sold to it in reliance upon specific
               exemptions from the registration requirements of United States
               federal and state securities laws and that the Company is relying
               upon the truth and accuracy of, and the Buyer's compliance with,
               the representations, warranties, agreements, acknowledgments and
               understandings of the Buyer set forth herein in order to
               determine the availability of such exemptions and the eligibility
               of the Buyer to acquire the Securities.

          2.4. INFORMATION. The Buyer and its advisors, if any, have been
               furnished with all materials relating to the business, finances
               and operations of the Company and materials, including without
               limitation the SEC Documents (as defined in Section 3.8 herein),
               relating to the offer and sale of the Securities which have been
               requested by the Buyer or its advisors. The Buyer and its
               advisors, if any, have been afforded the opportunity to ask
               questions of the Company. Neither such inquiries nor any other
               due diligence investigation conducted by Buyer or any of its
               advisors or representatives shall modify, amend or affect Buyer's
               right to rely on the Company's representations and warranties
               contained in Section 3 below. The Buyer understands that its
               investment in the Securities involves a significant degree of
               risk. Anything in this Section 2.4 or elsewhere herein to the
               contrary notwithstanding, The Company represents and warrants
               that it has not disclosed to any Buyer any material non-public
               information about the Company or its business or affairs.

          2.5. GOVERNMENTAL REVIEW. The Buyer understands that no United States
               federal or state agency or any other government or governmental
               agency has passed upon or made any recommendation or endorsement
               of the Securities.

          2.6. TRANSFER OR RE-SALE. The Buyer understands that (i) except as
               provided in the Registration Rights Agreement, the sale or
               re-sale of the Securities has not been and is not being
               registered under the 1933 Act or any applicable state securities
               laws, and the Securities may not be transferred unless (a) the
               Securities are sold pursuant to an effective registration
               statement under the 1933 Act, (b) the Buyer shall have delivered
               to the Company an opinion of counsel (which opinion shall be in
               form, substance and scope customary for opinions of counsel in
               comparable transactions and reasonably satisfactory to the
               Company) to the effect that the Securities to be sold or
               transferred may be sold or transferred pursuant to an exemption
               from


                                       3


               such registration (c) the Securities are sold or transferred to
               an "affiliate" (as defined in Rule 144 promulgated under the 1933
               Act (or a successor rule) ("RULE 144")) of the Buyer who agrees
               to sell or otherwise transfer the Securities only in accordance
               with this Section 2.6 and who is an Accredited Investor or (d)
               the Securities are sold pursuant to Rule 144; (ii) any sale of
               such Securities made in reliance on Rule 144 may be made only in
               accordance with the terms of said Rule and further, if said Rule
               is not applicable, any re-sale of such Securities under
               circumstances in which the seller (or the person through whom the
               sale is made) may be deemed to be an underwriter (as that term is
               defined in the 1933 Act) may require compliance with some other
               exemption under the 1933 Act or the rules and regulations of the
               SEC thereunder; and (iii) neither the Company nor any other
               person is under any obligation to register such Securities under
               the 1933 Act or any state securities laws or to comply with the
               terms and conditions of any exemption thereunder (in each case,
               other than pursuant to the Registration Rights Agreement).
               Notwithstanding the foregoing or anything else contained herein
               to the contrary, the Securities may be pledged as collateral in
               connection with a bona fide margin account or other lending
               arrangement.

          2.7. LEGENDS. The Buyer understands that the Preferred Shares and the
               Warrants and, until such time as the Conversion Shares, Dividend
               Shares and Warrant Shares have been registered under the 1933 Act
               as contemplated by the Registration Rights Agreement or otherwise
               may be sold pursuant to Rule 144 without any restriction as to
               the number of securities as of a particular date that can then be
               immediately sold, the Conversion Shares, Dividend Shares and
               Warrant Shares, will bear a restrictive legend in substantially
               the following form (and a stop-transfer order may be placed
               against transfer of the certificates for such Securities):


                        "The securities represented by this certificate have not
                        been registered under the Securities Act of 1933, as
                        amended. The securities may not be sold, transferred or
                        assigned in the absence of an effective registration
                        statement for the securities under said Act, or an
                        opinion of counsel, in form, substance and scope
                        customary for opinions of counsel in comparable
                        transactions and reasonably satisfactory to the Company,
                        that registration is not required under said Act or
                        unless sold pursuant to Rule 144 under said Act."

                    The legend set forth above shall be removed and the Company
               shall issue a certificate without such legend to the holder of
               any Security upon which it is stamped, if, unless otherwise
               required by applicable state securities laws, (a) in the event of
               a transfer of a Security (or, if in the opinion of counsel to the
               Company or to Buyer, a certificate without legend may be issued
               prior to such transfer), such Security is registered for resale
               under an effective registration statement filed under the 1933
               Act or otherwise may be sold pursuant to Rule 144 without any
               restriction as to the number of securities as of a particular
               date that can then be immediately sold, or (b) such holder
               provides the Company with an opinion of counsel, in form,
               substance and scope customary for opinions of counsel


                                       4


               in comparable transactions and reasonably satisfactory to the
               Company, to the effect that a public sale or transfer of such
               Security may be made without registration under the 1933 Act and
               such sale or transfer is effected. The Buyer agrees to sell all
               Securities, including those represented by a certificate(s) from
               which the legend has been removed, in compliance with all
               applicable laws and regulations, including without limitation
               applicable prospectus delivery requirements, if any.

          2.8. AUTHORIZATION; ENFORCEMENT. This Agreement and the Registration
               Rights Agreement have been duly and validly authorized by Buyer.
               This Agreement has been duly executed and delivered on behalf of
               the Buyer, and this Agreement constitutes, and upon execution and
               delivery by the Buyer of the Registration Rights Agreement, such
               agreement will constitute, valid and binding agreements of the
               Buyer enforceable in accordance with their terms.

          2.9. RESIDENCY. The Buyer is a resident of the jurisdiction set forth
               immediately below such Buyer's name on the signature pages
               hereto.



          3.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
               represents and warrants to each Buyer that:

          3.1. ORGANIZATION AND QUALIFICATION. The Company is a corporation duly
               organized, validly existing and in good standing under the laws
               of Delaware, with full power and authority (corporate and other)
               to own, lease, use and operate its properties and to carry on its
               business as and where now owned, leased, used, operated and
               conducted. Except as set forth in Schedule 3.1, the Company has
               no "Subsidiaries" (as defined below). The Company is duly
               qualified as a foreign corporation to do business and is in good
               standing in every jurisdiction in which its ownership or use of
               property or the nature of the business conducted by it makes such
               qualification necessary except where the failure to be so
               qualified or in good standing would not have a Material Adverse
               Effect. "MATERIAL ADVERSE EFFECT" means any material adverse
               effect on (i) the Securities, (ii) the business, operations,
               assets, financial condition or, to the extent it can be
               reasonably anticipated as of the date hereof, prospects of the
               Company, (iii) the transactions contemplated hereby or by the
               agreements or instruments to be entered into in connection
               herewith or (iv) the authority or the ability of the Company to
               perform its obligation under this Agreement, the Registration
               Rights Agreement, the Certificate of Designation or the Warrants.
               "SUBSIDIARIES" means any corporation or other organization,
               whether incorporated or unincorporated, in which the Company
               owns, directly or indirectly, any equity or other ownership
               interest and which has assets or liabilities in excess of
               $100,000 as of December 31, 2000.


          3.2. AUTHORIZATION; ENFORCEMENT. (i) The Company has all requisite
               corporate power and authority to file and perform its obligations
               under the Certificate of Designation and to enter into and
               perform this Agreement, the Registration Rights Agreement and the
               Warrants and


                                       5


               to consummate the transactions contemplated hereby and thereby
               and to issue the Securities, in accordance with the terms hereof
               and thereof, (ii) the execution and delivery of this Agreement,
               the Registration Rights Agreement and the Warrants by the
               Company, the filing of the Certificate of Designation and the
               consummation by it of the transactions contemplated hereby and
               thereby (including without limitation, the issuance of the
               Preferred Shares and the Warrants and the issuance and
               reservation for issuance of the Conversion Shares issuable upon
               conversion of or otherwise pursuant to the Preferred Shares and
               the Warrant Shares issuable upon exercise of or otherwise
               pursuant to the Warrants) have been duly authorized by the
               Company's Board of Directors and no further consent or
               authorization of the Company, its Board of Directors, or its
               stockholders (other than as may be required under Nasdaq
               Marketplace Rule 4350) is required, (iii) this Agreement has been
               duly executed and delivered by the Company, and (iv) this
               Agreement constitutes, and upon execution and delivery by the
               Company of the Registration Rights Agreement and the Warrants and
               upon execution and filing of the Certificate of Designation, each
               of such agreements and instruments will constitute, a legal,
               valid and binding obligation of the Company enforceable against
               the Company in accordance with its terms.


          3.3. CAPITALIZATION. As of the date hereof, the authorized capital
               stock of the Company consists of (i) 85,000,000 shares of Common
               Stock of which 44,390,267 shares are issued and outstanding,
               18,475,000 shares are reserved for issuance pursuant to the
               Company's stock option plans and certain non-plan option
               agreements, 7,583,000 shares are reserved for issuance pursuant
               to securities (other than the Preferred Shares and the Warrants)
               exercisable for, or convertible into or exchangeable for shares
               of Common Stock and 5,560,000 shares are reserved for issuance
               upon conversion of the Preferred Shares and exercise of the
               Warrants (subject to adjustment pursuant to the Company's
               covenant set forth in Section 4(h) below); (ii) 1,000,000 shares
               of preferred stock of which 333,334 shares have been designated
               as Series B 8% Convertible Preferred Stock, 333,333 of which are
               outstanding, 15,400 shares have been designated as Series C 8%
               Convertible Preferred Stock, all of which are outstanding, and
               11,734 shares have been designated as Series D Convertible
               Preferred Stock, 11,734 of which are outstanding. All of such
               outstanding shares of capital stock are, or upon issuance will
               be, duly authorized, validly issued, fully paid and
               nonassessable. Except as disclosed in Schedule 3.3, no shares of
               capital stock of the Company are subject to preemptive rights or
               any other similar rights of the stockholders of the Company or
               any liens or encumbrances imposed through the actions or failure
               to act of the Company. Except as disclosed in Schedule 3.3, as of
               the effective date of this Agreement, (i) there are no
               outstanding options, warrants, scrip, rights to subscribe for,
               puts, calls, rights of first refusal, agreements, understandings,
               claims or other commitments or rights of any character whatsoever
               relating to, or securities or rights convertible into or
               exchangeable for any shares of capital stock of the Company, or
               arrangements by which the Company is or may become bound to issue
               additional shares of capital stock of the Company, (ii) there are
               no agreements or arrangements under which the Company is
               obligated to register the sale of any of its or their securities
               under the 1933 Act (except the Registration Rights Agreement) and
               (iii)


                                       6


               there are no anti-dilution or price adjustment provisions
               contained in any security issued by the Company (or in any
               agreement providing rights to security holders) that will be
               triggered by the issuance of the Preferred Shares, the Warrants,
               the Conversion Shares, the Dividend Shares or the Warrant Shares.
               The Company has made available to the Buyer true and correct
               copies of the Company's Certificate of Incorporation as in effect
               on the date hereof, including the Certificates of Designation for
               the Company's Series B, Series C and Series D preferred stock
               ("CERTIFICATE OF INCORPORATION"), the Company's By-laws, as in
               effect on the date hereof (the "BY-LAWS"), and has made available
               to Buyer all of the Company's option plans and standard forms of
               option agreements and all other agreements containing the terms
               of securities convertible into or exercisable for Common Stock of
               the Company and the material rights of the holders thereof in
               respect thereto.


          3.4. ISSUANCE OF SHARES. The Preferred Shares are duly authorized and,
               upon issuance in accordance with the terms of this Agreement,
               will be validly issued, fully paid and non-assessable, and free
               from all taxes, liens, claims and encumbrances with respect to
               the issue thereof and shall not be subject to preemptive rights
               or other similar rights of stockholders of the Company and will
               not impose personal liability upon the holder thereof. The
               Conversion Shares, the Dividend Shares and the Warrant Shares are
               duly authorized and reserved for issuance, and, when issued upon
               conversion of or otherwise pursuant to the Preferred Shares and
               upon exercise of or otherwise pursuant to the Warrants in
               accordance with the terms thereof, will be validly issued, fully
               paid and non-assessable, and free from all taxes, liens, claims
               and encumbrances and will not be subject to preemptive rights or
               other similar rights of stockholders of the Company and will not
               impose personal liability upon the holder thereof.

          3.5. ACKNOWLEDGMENT OF DILUTION. The Company understands and
               acknowledges the potentially dilutive effect to the Common Stock
               upon the issuance of the Conversion Shares upon conversion of or
               otherwise pursuant to the Preferred Shares and upon issuance of
               the Warrant Shares upon exercise of or otherwise pursuant to the
               Warrants. The Company's directors and executive officers have
               studied and fully understand the nature of the Securities being
               sold hereunder. The Company further acknowledges that its
               obligation to issue Conversion Shares and Warrant Shares upon
               conversion of the Preferred Shares or exercise of the Warrants in
               accordance with this Agreement, the Certificate of Designation
               and the Warrants is absolute and unconditional regardless of the
               dilutive effect that such issuance may have on the ownership
               interests of other stockholders of the Company. Taking the
               foregoing into account, the Company's Board of Directors has
               determined, in its good faith business judgment, that the
               issuance of the Securities hereunder and under the Certificate of
               Designation and the Warrants and the consummation of the
               transactions contemplated hereby and thereby are in the best
               interest of the Company and its stockholders.


          3.6. SERIES OF PREFERRED STOCK. The terms, designations, powers,
               preferences and relative, participating and optional or special
               rights, and the qualifications, limitations and restrictions of
               each series of preferred stock of the Company (other than the
               Preferred


                                       7


               Shares), if any, are as stated in the Certificates of
               Incorporation, filed on or prior to the date hereof, and the
               Bylaws. The terms, designations, powers, preferences and
               relative, participating and optional or special rights, and the
               qualifications, limitations and restrictions of the Preferred
               Shares are as stated in the Certificate of Designation.


          3.7. NO CONFLICTS. The execution, delivery and performance of this
               Agreement, the Registration Rights Agreement and the Warrants by
               the Company and the consummation by the Company of the
               transactions contemplated hereby and thereby (including, without
               limitation, the filing of the Certificate of Designation and the
               issuance and reservation for issuance, as applicable, of the
               Securities) will not (i) conflict with or result in a violation
               of any provision of the Certificate of Incorporation or By-laws
               or (ii) violate or conflict with, or result in a breach of any
               provision of, or constitute a default (or an event which with
               notice or lapse of time or both could become a default) under, or
               give to others any rights of termination, amendment, acceleration
               or cancellation of, any agreement, indenture, patent, patent
               license or instrument to which the Company is a party, or (iii)
               result in a violation of any law, rule, regulation, order,
               judgment or decree (including federal and state securities laws
               and regulations and regulations of any self-regulatory
               organizations to which the Company or its securities are subject)
               applicable to the Company by which any property or asset of the
               Company is bound or affected (except for such conflicts,
               defaults, terminations, amendments, accelerations, cancellations
               and violations as would not, individually or in the aggregate,
               have a Material Adverse Effect). The Company is not in violation
               of its Certificate of Incorporation, By-laws or other
               organizational documents and the Company is not in default (and
               no event has occurred which with notice or lapse of time or both
               could put the Company in default) under, and the Company has not
               taken any action or failed to take any action that would give to
               others any rights of termination, amendment, acceleration or
               cancellation of, any agreement, indenture or instrument to which
               the Company is a party or by which any property or assets of the
               Company is bound or affected, except for possible defaults as
               would not, individually or in the aggregate, have a Material
               Adverse Effect. The businesses of the Company are not being
               conducted, and shall not be conducted so long as a Buyer owns any
               of the Securities, in violation of any law, ordinance or
               regulation of any governmental entity (except for such violations
               as would not, individually or in the aggregate, have a Material
               Adverse Effect). Except for (i) as specifically contemplated by
               this Agreement and as required under the 1933 Act, (ii) as
               required by any applicable state securities laws and (iii) such
               actions as are necessary to comply with Nasdaq Marketplace Rule
               4350, the Company is not required to obtain any consent,
               authorization or order of, or make any filing or registration
               with, any court, governmental agency, regulatory agency, self
               regulatory organization or stock market or any third party in
               order for it to execute, deliver or perform any of its
               obligations under this Agreement, the Registration Rights
               Agreement or the Warrants in accordance with the terms hereof or
               thereof or to issue and sell the Preferred Shares and Warrants in
               accordance with the terms hereof and to issue the Conversion
               Shares and the Dividend Shares upon conversion of or otherwise
               pursuant to the Preferred Shares and the Warrant Shares upon
               exercise of or otherwise pursuant to the Warrants. All consents,
               authorizations, orders, filings and registrations which the
               Company is


                                       8


               required to obtain pursuant to the preceding sentence have been
               obtained or effected on or prior to the date hereof. The Company
               is not in violation of the listing requirements of the NASDAQ
               SmallCap Market (the "NASDAQ SMALLCAP") and, except as set forth
               in Schedule 3.6, does not reasonably anticipate that the Common
               Stock will be delisted by the Nasdaq SmallCap in the foreseeable
               future. Except as set forth in Schedule 3.6, the Company and its
               Subsidiaries are unaware of any facts or circumstances which
               could reasonably be expected to give rise to any of the
               foregoing.


          3.8. SEC DOCUMENTS; FINANCIAL STATEMENTS. Since December 31, 1999, the
               Company has timely filed all reports, schedules, forms,
               statements and other documents required to be filed by it with
               the SEC pursuant to the reporting requirements of the Securities
               Exchange Act of 1934, as amended (the "1934 ACT") (all of the
               foregoing filed prior to the date hereof and all exhibits
               included therein and financial statements and schedules thereto
               and documents (other than exhibits to such documents)
               incorporated by reference therein, being hereinafter referred to
               as the "SEC DOCUMENTS"). The Company has made available
               (including by filing SEC Documents via EDGAR) to each Buyer true
               and complete copies of the SEC Documents, except for such
               exhibits and incorporated documents. Except as provided in
               Schedule 3.8, as of their respective dates, the SEC Documents
               complied in all material respects with the requirements of the
               1934 Act and the rules and regulations of the SEC promulgated
               thereunder applicable to the SEC Documents, and none of the SEC
               Documents, at the time they were filed with the SEC, contained
               any untrue statement of a material fact or omitted to state a
               material fact required to be stated therein or necessary in order
               to make the statements therein, in light of the circumstances
               under which they were made, not misleading. Except as provided in
               Schedule 3.8, none of the statements made in any such SEC
               Documents is, or has been, required to be amended or updated
               under applicable law (except for such statements as have been
               amended or updated in subsequent filings prior to the date
               hereof). Except as provided in Schedule 3.8, as of their
               respective dates, the financial statements of the Company
               included in the SEC Documents complied as to form in all material
               respects with applicable accounting requirements and the
               published rules and regulations of the SEC with respect thereto.
               Such financial statements have been prepared in accordance with
               United States generally accepted accounting principles,
               consistently applied, during the periods involved (except (i) as
               may be otherwise indicated in such financial statements or the
               notes thereto, or (ii) in the case of unaudited interim
               statements, to the extent they may not include footnotes or may
               be condensed or summary statements) and fairly present in all
               material respects the consolidated financial position of the
               Company and its consolidated Subsidiaries as of the dates thereof
               and the consolidated results of their operations and cash flows
               for the periods then ended (subject, in the case of unaudited
               statements, to normal year-end audit adjustments). Except as set
               forth in the financial statements of the Company included in the
               SEC Documents or Schedule 3.8, the Company has no liabilities,
               contingent or otherwise, other than (i) liabilities incurred in
               the ordinary course of business subsequent to December 31, 2000
               and (ii) obligations under contracts and commitments incurred in
               the ordinary course of business and not required under generally


                                       9


               accepted accounting principles to be reflected in such financial
               statements, which, individually or in the aggregate, are not
               material to the financial condition or operating results of the
               Company.

          3.9. ABSENCE OF CERTAIN CHANGES. Since December 31, 2000, there has
               been no material adverse change and no material adverse
               development in the assets, liabilities, business, properties,
               operations, financial condition or results of operations of the
               Company or any of its Subsidiaries.


          3.10. ABSENCE OF LITIGATION. Except as set forth in Schedule 3.10,
               there is no action, suit, claim, proceeding, inquiry or, to the
               knowledge of the Company, investigation before or by any court,
               public board, government agency, self-regulatory organization or
               body pending or, to the knowledge of the Company, threatened
               against or affecting the Company or its officers or directors in
               their capacity as such, that could have a Material Adverse
               Effect. Schedule 3.10 contains a complete list and summary
               description of any pending or threatened proceeding against or
               affecting the Company that claims damages of $50,000 or more.
               None of the Company's executive officers are aware of any facts
               or circumstances which might give rise to any of the foregoing.


          3.11. PATENTS, COPYRIGHTS, ETC. Except as set forth in Schedule 3.11,
               the Company owns or possesses the requisite licenses or rights to
               use all patents, patent applications, patent rights, inventions,
               know-how, trade secrets, trademarks, trademark applications,
               service marks, service names, trade names and copyrights
               ("Intellectual Property") necessary to enable it to conduct its
               business as now operated (and, except as set forth in Schedule
               3(11) hereof, to the best of the Company's knowledge, as
               presently contemplated to be operated in the future); there is no
               claim or action by any person pertaining to, or proceeding
               pending, or to the Company's knowledge threatened, which
               challenges the right of the Company with respect to any
               Intellectual Property necessary to enable it to conduct its
               business as now operated (and, except as set forth in Schedule
               3.11 hereof, to the best of the Company's knowledge, as presently
               contemplated to be operated in the future); to the best of the
               Company's knowledge, the Company's current and intended products,
               services and processes do not infringe on any Intellectual
               Property or other rights held by any person; and the Company is
               unaware of any facts or circumstances which might give rise to
               any of the foregoing. The Company has taken reasonable security
               measures to protect the secrecy, confidentiality and value of
               their Intellectual Property.


          3.12. NO MATERIALLY ADVERSE CONTRACTS, ETC. Except as set forth on
               Schedule 3.11 the Company is not subject to any charter,
               corporate or other legal restriction, or any judgment, decree,
               order, rule or regulation which in the judgment of the Company's
               officers has or is expected in the future to have a Material
               Adverse Effect. Except as set forth on Schedule 3.12, the Company
               is not a party to any contract or agreement


                                       10


               which in the judgment of the Company's officers has or is
               expected to have a Material Adverse Effect.


          3.13. TAX STATUS. The Company has made or filed all federal, state and
               foreign income and all other tax returns, reports and
               declarations required by any jurisdiction to which it is subject
               (unless and only to the extent that the Company has set aside on
               its books provisions reasonably adequate for the payment of all
               unpaid and unreported taxes) and has paid all taxes and other
               governmental assessments and charges that are material in amount,
               shown or determined to be due on such returns, reports and
               declarations, except those being contested in good faith and has
               set aside on its books provisions reasonably adequate for the
               payment of all taxes for periods subsequent to the periods to
               which such returns, reports or declarations apply. There are no
               unpaid taxes in any material amount claimed to be due by the
               taxing authority of any jurisdiction, and the officers of the
               Company know of no basis for any such claim. The Company has not
               executed a waiver with respect to the statute of limitations
               relating to the assessment or collection of any foreign, federal,
               state or local tax. None of the Company's tax returns is
               presently being audited by any taxing authority.


          3.14. CERTAIN TRANSACTIONS. Except as set forth on Schedule 3.14 and
               in the SEC Documents and except for arm's length transactions
               pursuant to which the Company makes payments in the ordinary
               course of business upon terms no less favorable than the Company
               could obtain from third parties and other than the grant of stock
               options disclosed on Schedule 3.3, none of the officers,
               directors, or employees of the Company is presently a party to
               any transaction with the Company (other than for services as
               employees, officers and directors), including any contract,
               agreement or other arrangement providing for the furnishing of
               services to or by, providing for rental of real or personal
               property to or from, or otherwise requiring payments to or from
               any officer, director or such employee or, to the knowledge of
               the Company, any corporation, partnership, trust or other entity
               in which any officer, director, or any such employee has a
               substantial interest or is an officer, director, trustee or
               partner.


          3.15. DISCLOSURE. All information relating to or concerning the
               Company set forth in this Agreement and provided to the Buyers
               pursuant to Section 2.4 hereof and otherwise in connection with
               the transactions contemplated hereby is true and correct in all
               material respects and the Company has not omitted to state any
               material fact necessary in order to make the statements made
               herein or therein, in light of the circumstances under which they
               were made, not misleading. No event or circumstance has occurred
               or exists, nor is the Company in possession of any information,
               with respect to the Company or its business, properties,
               operations or financial conditions, which has not been publicly
               announced or disclosed but under applicable law, rule or
               regulation, requires public disclosure or announcement by the
               Company (assuming for this purpose that the Company's reports
               filed under the 1934 Act are being incorporated into an effective
               registration statement filed by the Company under the 1933 Act).




                                       11


          3.16. ACKNOWLEDGMENT REGARDING BUYERS' PURCHASE OF SECURITIES. The
               Company acknowledges and agrees that the Buyers are acting solely
               in the capacity of arm's length purchasers with respect to this
               Agreement and the transactions contemplated hereby and otherwise.
               The Company further acknowledges that no Buyer is acting as a
               financial advisor or fiduciary of the Company (or in any similar
               capacity) with respect to this Agreement and the transactions
               contemplated hereby and that any statement made by any Buyer or
               any of their respective representatives or agents in connection
               with this Agreement and the transactions contemplated hereby is
               not advice or a recommendation and is merely incidental to the
               Buyers' purchase of the Securities and has not been relied upon
               by the Company, its officers or directors in any way. The Company
               further represents to each Buyer that the Company's decision to
               enter into this Agreement has been based solely on the
               independent evaluation of the Company and its representatives.
               Without limiting the generality of the foregoing, The Company
               acknowledges and agrees that neither the Buyers nor their
               representatives owe the Company any duty of disclosure.


          3.17. NO INTEGRATED OFFERING. Assuming the validity of Buyers'
               representations under Section 2 hereof, neither the Company, nor
               any of its affiliates, nor any person acting on its or their
               behalf, has directly or indirectly made any offers or sales of
               any security or solicited any offers to buy any security under
               circumstances that would require registration under the 1933 Act
               of the issuance of the Securities to the Buyers. The issuance of
               the Securities to the Buyers will not be integrated with any
               other issuance of the Company's securities (past, current or
               future) in a manner that will require stockholder approval under
               any stockholder approval provisions applicable to the Company or
               its securities. Assuming the validity of Buyers' representations
               under Section 2 hereof, none of the Securities have been offered
               or sold nor have there been any solicitations of offers to buy
               any of the Securities to any person other than Accredited
               Investors and the Company has not made any offers or sales or
               solicited offers to buy any of its securites within the last six
               months to any person other than Accredited Investors.


          3.18. NO BROKERS. Except as set forth on Schedule 3.18, the Company
               has taken no action which would give rise to any claim by any
               person for brokerage commissions, finder's fees or similar
               payments relating to this Agreement or the transactions
               contemplated hereby.


          3.19. PERMITS; COMPLIANCE. Except as disclosed in Schedule 3.19, the
               Company is in possession of all franchises, grants,
               authorizations, licenses, permits, easements, variances,
               exemptions, consents, certificates, approvals and orders
               necessary to own, lease and operate its properties and to carry
               on its business as it is now being conducted (collectively, the
               "Company Permits"), and there is no action pending or, to the
               knowledge of the Company, threatened regarding suspension or
               cancellation of any of the Company Permits. The Company is not in
               conflict with, or in default or violation of, any of the Company
               Permits, except for any such conflicts, defaults or


                                       12


               violations which, individually or in the aggregate, would not
               reasonably be expected to have a Material Adverse Effect. Since
               December 31, 2000, the Company has not received any notification
               with respect to possible conflicts, defaults or violations of
               applicable laws, except for notices relating to possible
               conflicts, defaults or violations, which conflicts, defaults or
               violations would not have a Material Adverse Effect.


          3.20. ENVIRONMENTAL MATTERS.


          3.20.1. Except as set forth in Schedule 3.20, there are, to the
               Company's knowledge, with respect to the Company or any
               predecessor of the Company, no past or present violations of
               Environmental Laws (as defined below), releases of any material
               into the environment, actions, activities, circumstances,
               conditions, events, incidents, or contractual obligations which
               may give rise to any common law environmental liability or any
               liability under the Comprehensive Environmental Response,
               Compensation and Liability Act of 1980 or similar federal, state,
               local or foreign laws and the Company has not received any notice
               with respect to any of the foregoing, nor is any action pending
               or, to the Company's knowledge, threatened in connection with any
               of the foregoing. The term "Environmental Laws" means all
               federal, state, local or foreign laws relating to pollution or
               protection of human health or the environment (including, without
               limitation, ambient air, surface water, groundwater, land surface
               or subsurface strata), including, without limitation, laws
               relating to emissions, discharges, releases or threatened
               releases of chemicals, pollutants contaminants, or toxic or
               hazardous substances or wastes (collectively, "Hazardous
               Materials") into the environment, or otherwise relating to the
               manufacture, processing, distribution, use, treatment, storage,
               disposal, transport or handling of Hazardous Materials, as well
               as all authorizations, codes, decrees, demands or demand letters,
               injunctions, judgments, licenses, notices or notice letters,
               orders, permits, plans or regulations issued, entered,
               promulgated or approved thereunder.

          3.20.2. Other than those that are or were stored, used or disposed of
               in compliance with applicable law, to the knowledge of the
               Company, no Hazardous Materials are contained on or about any
               real property currently owned, leased or used by the Company and
               no Hazardous Materials were released on or about any real
               property previously owned, leased or used by the Company during
               the period the property was owned, leased or used by the Company,
               except in the normal course of the Company's business.

          3.20.3. Except as set forth in SCHEDULE 3.20, to the knowledge of the
               Company, there are no underground storage tanks on or under any
               real property owned, leased or used by the Company that are not
               in compliance with applicable law.

          3.21. TITLE TO PROPERTY. The Company has good and marketable title in
               fee simple to all real property and good and marketable title to
               all personal property owned by them which is material to the
               business of


                                       13


               the Company, in each case free and clear of all liens,
               encumbrances and defects except such as are described in SCHEDULE
               3.21 or such as would not have a Material Adverse Effect. Any
               real property and facilities held under lease by the Company are
               held by it under valid, subsisting and enforceable leases with
               such exceptions as would not have a Material Adverse Effect.


          3.22. INSURANCE. The Company is insured by insurers of recognized
               financial responsibility against such losses and risks and in
               such amounts as management of the Company believes to be prudent
               and customary in the businesses in which the Company is engaged.
               The Company has no reason to believe that it will not be able to
               renew its existing insurance coverage as and when such coverage
               expires or to obtain similar coverage from similar insurers as
               may be necessary to continue its business at a cost that would
               not have a Material Adverse Effect.


          3.23. INTERNAL ACCOUNTING CONTROLS. Except as disclosed on Schedule
               3.23, the Company maintains a system of internal accounting
               controls sufficient, in the judgment of the Company's board of
               directors, to provide reasonable assurance that (i) transactions
               are executed in accordance with management's general or specific
               authorizations, (ii) transactions are recorded as necessary to
               permit preparation of financial statements in conformity with
               generally accepted accounting principles and to maintain asset
               accountability, (iii) access to assets is permitted only in
               accordance with management's general or specific authorization
               and (iv) the recorded accountability for assets is compared with
               the existing assets at reasonable intervals and appropriate
               action is taken with respect to any differences.


          3.24. FOREIGN CORRUPT PRACTICES. Neither the Company, nor any
               director, officer, agent, employee or other person acting on
               behalf of the Company has, in the course of his actions for, or
               on behalf of, the Company, used any corporate funds for any
               unlawful contribution, gift, entertainment or other unlawful
               expenses relating to political activity; made any direct or
               indirect unlawful payment to any foreign or domestic government
               official or employee from corporate funds; violated or is in
               violation of any provision of the U.S. Foreign Corrupt Practices
               Act of 1977; or made any bribe, rebate, payoff, influence
               payment, kickback or other unlawful payment to any foreign or
               domestic government official or employee.

          3.25. SOLVENCY. Except as set forth on Schedule 3.25, the Company
               (both before and after giving effect to the transactions
               contemplated by this Agreement) is solvent (i.e., its assets have
               a fair market value in excess of the amount required to pay its
               probable liabilities on its existing debts as they become
               absolute and matured) and currently the Company has no
               information that would lead it to reasonably conclude that the
               Company would not have the ability to, nor does it intend to take
               any action that would impair its ability to, pay its debts from
               time to time incurred in connection therewith as such debts
               mature. Except as disclosed in Schedule 3.25, the Company did not
               receive a qualified opinion from its auditors with respect to its
               most


                                       14


               recent fiscal year end and does not anticipate or know of any
               basis upon which its auditors might issue a qualified opinion in
               respect of its current fiscal year.


          3.26. NO INVESTMENT COMPANY. The Company is not, and upon the issuance
               and sale of the Securities as contemplated by this Agreement and
               the Certificate of Designation will not be an "investment
               company" required to be registered under the Investment Company
               Act of 1940 (an "Investment Company"). The Company is not
               controlled by an Investment Company.


          3.27. TRADING IN COMMON STOCK. Neither the Company nor any officer,
               director, affiliate, or other person acting on behalf of the
               Company or any such officer, director or affiliate has directly
               or indirectly engaged in the purchase or sale of the Common Stock
               (or any derivative interest thereof) during the period beginning
               fifteen (15) Trading Days (as defined in the Certificate of
               Designation) prior to the Closing Date and ending on the Closing
               Date.


          4.   COVENANTS.

          4.1. BEST EFFORTS. The parties shall use all c commercially reasonable
               efforts to satisfy timely each of the conditions described in
               Section 6 and 7 of this Agreement.

          4.2. FORM D; BLUE SKY LAWS. The Company agrees to file a Form D with
               respect to the Securities as required under Regulation D and to
               provide a copy thereof to each Buyer promptly after such filing.
               The Company shall, on or before the Closing Date, take such
               action as the Company shall reasonably determine is necessary to
               qualify the Securities for sale to the Buyers at the Closing
               pursuant to this Agreement under applicable securities or "blue
               sky" laws of the states of the United States (or to obtain an
               exemption from such qualification), and shall provide evidence of
               any such action so taken to each Buyer on or prior to the Closing
               Date.

          4.3. REPORTING STATUS; ELIGIBILITY TO USE FORM S-3; PRESS RELEASE. The
               Company's Common Stock is registered under Section 12(g) of the
               1934 Act. So long as any Buyer beneficially owns any of the
               Securities, the Company shall timely file all reports required to
               be filed with the SEC pursuant to the 1934 Act, and the Company
               shall not terminate its status as an issuer required to file
               reports under the 1934 Act even if the 1934 Act or the rules and
               regulations thereunder would permit such termination. The Company
               currently meets, and, subject to Section 4.10, so long as any
               Buyer beneficially owns any of the Securities, will take all
               necessary action reasonably within its control to continue to
               meet, the "registrant eligibility" requirements set forth in the
               general instructions to Form S-3. The Company shall issue a press
               release describing the material terms of the transactions
               contemplated hereby as soon as practicable following the Closing
               Date but in no event later than one (1) Trading Day (as defined
               in the


                                       15


               Certificate of Designation) following the Closing Date, and shall
               file with the SEC a Current Report on Form 8-K describing the
               material terms of the transactions contemplated hereby (and
               attaching as exhibits thereto this Agreement, the Registration
               Rights Agreement, the Certificate of Designation and the
               Warrants) within two (2) Trading Days of the Closing Date, which
               press release and Form 8-K shall be subject to prior review by
               the Buyers.

          4.4. USE OF PROCEEDS. The Company shall use the proceeds from the sale
               of the Preferred Shares and the Warrants for general working
               capital purposes and shall not, directly or indirectly, use such
               proceeds for any loan to or investment in any other corporation,
               partnership, enterprise or other person (except in connection
               with direct or indirect subsidiaries).

          4.5. RIGHT OF FIRST OFFER; RIGHT TO PARTICIPATE.

          4.5.1. Subject to the terms and conditions specified in this Section
               4.5, until the first anniversary of the Closing Date, the Company
               hereby grants to each Buyer the right of first offer to purchase
               New Securities (as hereinafter defined) which the Company may,
               from time to time, propose to sell and issue. If more than one
               Buyer desires to purchase the New Securities, then each Buyer
               shall have the right to purchase the New Securities in the
               proportion that the number of Preferred Shares then owned by such
               Buyer bears to the total number of Preferred Shares owned by all
               Buyers desiring to purchase the New Securities.

          4.5.2. In the event the Company proposes to issue New Securities, it
               shall give each Buyer written notice (the "Right of First Offer
               Notice") of its intention stating (i) a description of the New
               Securities it proposes to issue, (ii) the number of shares of New
               Securities it proposes to offer, (iii) the price per share at
               which, and other terms on which, it proposes to offer such New
               Securities and (iv) the number of shares that the Buyer has the
               right to purchase under this Section 4.5.

          4.5.3. Within ten (10) business days after the Right of First Offer
               Notice is given, the Buyer may elect to purchase, at the price
               specified in the Right of First Offer Notice, up to its
               proportionate share of New Securities, as provided for in Section
               4.5.1. An election to purchase shall be made in writing and must
               be given to the Company within such 10-day period.

          4.5.4. The Company shall have 120 days after the last date on which
               the Buyer's right of first offer lapsed to enter into an
               agreement (pursuant to which the sale of New Securities covered
               thereby shall be closed, if at all, within 60 days from the
               execution thereof) to sell the New Securities which the Buyers
               did not elect to purchase under this Section 4.5, at or above the
               price and upon terms not more favorable to the purchasers of such
               securities than the terms specified in the initial Right of First
               Offer Notice given in connection with such sale. If the Company
               enters into an agreement for the sale of the New Securities with
               a third party purchaser, the Company shall, not later than ten
               (10) days prior to closing such transaction, offer to Buyers, by
               written notice (the "Participation


                                       16


               Right Notice") the opportunity to participate in such transaction
               on the same terms as are offered to each third party purchaser
               and Buyer shall have the right to purchase its proportionate
               share (as set forth in Section 4.5.1.) of the New Securities from
               the Company on the same terms as are offered to such third party
               purchaser up to an amount equal to the aggregate amount invested
               by the third party purchaser. In the event that the Company gives
               a Participation Right Notice, Buyers shall have the right, but
               not the obligation, by written notice to the Company given within
               the aforesaid ten (10) day period, to elect to participate in
               such transaction. The closing of the sale of New Securities by
               the Company to the participating Buyers upon exercise of its
               rights under this Section 4.5 shall take place simultaneously
               with the closing of the sale of New Securities to third parties.
               In the event the Company has not entered into an agreement to
               sell the New Securities within such 120-day period (or sold and
               issued New Securities in accordance with the foregoing within 60
               days from the date of said agreement), the Company shall not
               thereafter issue or sell any New Securities without first
               offering such New Securities to the Buyer in the manner provided
               in this Section 4.5.

          4.5.6. The right of first offer set forth in this Section 4.5 shall
               not apply to the issuance of New Securities to a Strategic
               Investor (as hereinafter defined); provided, however, that in the
               event, at any time prior to the first anniversary of the Closing
               Date, the Company, directly or indirectly, offers, sells, grants
               any option to purchase, or otherwise disposes of its New
               Securities to a Strategic Investor (a "Strategic Investment"),
               the Company shall, not later than ten (10) days prior to closing
               such Strategic Investment, offer to Buyers, by Participation
               Right Notice the opportunity to participate in such Strategic
               Investment on the same terms as are offered to the Strategic
               Investor up to an amount equal to the Purchase Price payable
               under this Agreement by each such Buyer. The Participation Right
               Notice shall describe in reasonable detail the proposed terms of
               such transaction and the amount of proceeds intended to be raised
               thereunder. In the event that the Company gives a Participation
               Right Notice, Buyers shall have the right, but not the
               obligation, by written notice to the Company given within the
               aforesaid ten (10) day period, to elect to participate in such
               transaction. If Buyers to make such election within such ten (10)
               day period (or, having so elected, does not in fact participate
               in such Strategic Investment through no fault of the Company),
               then Buyers shall have no further claim or right with respect to
               such Strategic Investment and the Company shall be free to
               consummate such transaction upon substantially the terms set
               forth in the Participation Right Notice.

          4.5.5. For purposes of this Section 4.5, the term "New Securities"
               shall mean any shares of, or securities convertible into or
               exercisable for any shares of, any class of the Company's capital
               stock. The term "Strategic Investor" shall mean any person
               (including any natural person, company, limited partnership,
               general partnership, joint stock company, joint venture,
               association, trust, bank trust company, land trust, business
               trust, or other organization, whether or not a legal entity, and
               any government or agency or political subdivision thereof) who
               has significant operations in the Company's industry and is
               making an investment in the Company's securities for strategic,
               rather than exclusively financial, purposes.



                                       17


          4.6. EXPENSES. The Company shall reimburse Buyer for all expenses
               incurred by them in connection with the negotiation, preparation,
               execution, delivery and performance of this Agreement and the
               other agreements to be executed in connection herewith,
               including, without limitation, attorney's and consultant's fees
               and expenses and travel expenses. The Company's obligation to
               reimburse Buyer's expenses under this Section 4.6 shall be
               limited to Ten Thousand Dollars ($10,000).

          4.7. FINANCIAL INFORMATION. The Company agrees to send the following
               reports to each Buyer until such Buyer transfers, assigns, or
               sells all of the Securities: (i) within one (1) day after
               release, copies of all press releases issued by the Company or
               any of its Subsidiaries; and (ii) contemporaneously with the
               making available or giving to the stockholders of the Company,
               copies of any notices or other information the Company makes
               available or gives to such stockholders.

          4.8. RESERVATION OF SHARES. The Company shall at all times have
               authorized, and reserved for the purpose of issuance, a
               sufficient number of shares of Common Stock to provide for the
               full conversion of the outstanding Preferred Shares and issuance
               of the Conversion Shares in connection with the conversion of
               Preferred Shares (based on the Conversion Price (as defined in
               the Certificate of Designation) then in effect) and as otherwise
               required by the Certificate of Designation, the issuance of
               Dividend Shares and the full exercise of the Warrants and
               issuance of the Warrant Shares in connection therewith (based on
               the Exercise Price (as defined in the Warrants) of the Warrants
               then in effect). The Company shall not reduce the number of
               shares of Common Stock reserved for issuance upon conversion of
               or otherwise pursuant to the Preferred Shares and upon exercise
               of or otherwise pursuant to the Warrants without the written
               consent of each Buyer. The Company shall use its best efforts at
               all times to maintain the number of shares of Common Stock so
               reserved for issuance at no less than two (2) times the number
               that is then actually issuable upon full conversion of the
               Preferred shares (based on the Conversion Price (as defined in
               the Certificate of Designation) then in effect) and full exercise
               of the Warrants (based on the Exercise Price (as defined in the
               Warrants) of the Warrants then in effect). If at any time the
               number of shares of Common Stock authorized and reserved for
               issuance is below the number of Conversion Shares issued and
               issuable upon conversion of or otherwise pursuant to the
               Preferred Shares (based on the Conversion Price (as defined in
               the Certificate of Designation) then in effect) and the aggregate
               number of Warrant Shares issued and issuable upon exercise of or
               otherwise pursuant to the Warrants (based on the Exercise Price
               (as defined in the Warrants) of the Warrants then in effect), the
               Company will promptly take all corporate action necessary to
               authorize and reserve a sufficient number of shares, including,
               without limitation, calling a special meeting of stockholders to
               authorize additional shares to meet the Company's obligations
               under this Section 4.8, in the case of an insufficient number of
               authorized shares, and using its best efforts to obtain
               stockholder approval of an increase in such authorized number of
               shares.

          4.9. LISTING. The Company shall promptly secure the listing of the
               Conversion Shares and Warrant Shares upon each national
               securities exchange or automated quotation system, if any, upon
               which shares of


                                       18


               Common Stock are then listed (subject to official notice of
               issuance) and, so long as any Buyer owns any of the Securities,
               shall maintain, so long as any other shares of Common Stock shall
               be so listed, such listing of all Conversion Shares and Warrant
               Shares from time to time issuable upon conversion of or otherwise
               pursuant to the Preferred Shares or exercise of or otherwise
               pursuant to the Warrants. The Company will obtain and, subject to
               Section 4.10, so long as any Buyer owns any of the Securities,
               maintain the listing and trading of its Common Stock on any of
               the following: the NASDAQ SmallCap, the NASDAQ National Market
               ("NNM"), the American Stock Exchange ("AMEX") or the New York
               Stock Exchange ("NYSE") and will comply in all respects with the
               Company's reporting, filing and other obligations under the
               bylaws or rules of the National Association of Securities Dealers
               ("NASD") and such exchanges, as applicable.

          4.10. CORPORATE EXISTENCE. So long as a Buyer beneficially owns any
               Preferred Shares or Warrants, the Company shall maintain its
               corporate existence and shall not merge, consolidate or sell all
               or substantially all of the Company's assets, except in the event
               of a merger or consolidation or sale of all or substantially all
               of the Company's assets, where (i) the successor or acquiring
               entity and, if an entity different from the successor or
               acquiring entity, the entity whose securities into which the
               Preferred Shares shall become convertible pursuant to Section
               7(h) of the Certificate of Designation and into which the
               Warrants shall become exercisable pursuant to Section 6(b) of the
               Warrants in such transaction, assumes the Company's obligations
               hereunder and under the agreements and instruments entered into
               in connection herewith (including the Certificate of Designation
               and the Warrants) and (ii) the entity whose securities into which
               the Preferred Shares shall become convertible pursuant to Section
               7(h) of the Certificate of Designation and into which the
               Warrants shall become exercisable pursuant to Section 6(b) of the
               Warrants is a publicly traded corporation whose Common Stock is
               listed for trading on Nasdaq SmallCap, the NNM, NYSE or AMEX.

          4.11. NO INTEGRATION. The Company shall not make any offers or sales
               of any security (other than the Securities) under circumstances
               that would require registration of the Securities being offered
               or sold hereunder under the 1933 Act or cause the offering of
               Securities to be integrated with any other offering of securities
               by the Company such that the Company would have to obtain
               stockholder approval pursuant to any stockholder approval
               provision applicable to the Company or its securities.

          4.12. TRADING LIMITATIONS.

          4.12.1 Anything herein to the contrary notwithstanding, it is
               understood and agreed (1) that the Buyer has not been asked to
               agree, nor has it agreed, to desist from purchasing or selling,
               long and/or short, securities issued by the Company, or
               "derivative" securities based on securities issued by, the
               Company, or to hold the Securities for any specified term; (2)
               that past or future open market or other transactions by Buyer,
               including short sales, and specifically including, without
               limitation, short sales or "derivative" transactions, before or
               after the closing of this or future private placement
               transactions, may negatively impact the market price of the
               Company's publicly-traded securities; (3) that Buyer, or counter


                                       19


               parties in "derivative" transactions to which Buyer is a party,
               directly or indirectly, presently have a "short" position in the
               common stock of the Company, and (4) that Buyer shall not be
               deemed to have any affiliation with or control over any arm's
               length counter-party in any "derivative" transaction.

          4.12.2 During the five trading days ending on the last trading day
               prior to the date a notice of conversion of the Preferred Shares
               is delivered to the Company, no Buyer or any of such Buyer's
               officers, directors, affiliates or other persons acting on behalf
               of such Buyer will, directly or indirectly, sell common stock or
               derivative securities based on common stock issued by the
               Company. The trading limitations set forth in this Section 4.12.2
               shall not apply to trading (1) by an arm's length counter-party
               involved in a derivative transaction with Buyer or its affiliates
               if the actions by Buyer or its affiliates related to such
               derivative transaction are completed at least seven trading days
               prior to the date a notice of conversion of the Preferred Shares
               is delivered to the Company, (2) during the thirty day period
               after the Company has delivered to Buyer a notice of redemption
               pursuant to Section 5 of the Certificate of Designation, or (3)
               if the applicable conversion price is $1.265 or greater on the
               date a notice of conversion is delivered to the Company.

          5.   TRANSFER AGENT INSTRUCTIONS. The Company shall issue irrevocable
               instructions to its transfer agent to issue certificates,
               registered in the name of each Buyer or its nominee, for the
               Conversion Shares, Dividend and Warrant Shares in such amounts as
               specified from time to time by each Buyer to the Company upon
               conversion of the Preferred Shares or exercise of the Warrants in
               accordance with the terms thereof (the "Irrevocable Transfer
               Agent Instructions"). A copy of the Irrevocable Transfer Agent
               Instructions shall be delivered to each Buyer. Prior to
               registration of the Conversion Shares, the Dividend Shares and
               the Warrant Shares under the 1933 Act or the date on which the
               Conversion Shares, the Dividend Shares or the Warrant Shares may
               be sold pursuant to Rule 144 without any restriction as to the
               number of securities as of a particular date that can then be
               immediately sold, all such certificates shall bear the
               restrictive legend specified in Section 2.7 of this Agreement.
               The Company warrants that no instruction other than the
               Irrevocable Transfer Agent Instructions referred to in this
               Section 5, and stop transfer instructions to give effect to
               Section 2.6 hereof (in the case of the Conversion Shares and
               Warrant Shares, prior to registration of the Conversion Shares
               and Warrant Shares under the 1933 Act or the date on which the
               Conversion Shares or Warrant Shares may be sold pursuant to Rule
               144 without any restriction as to the number of securities as of
               a particular date that can then be immediately sold), will be
               given by the Company to its transfer agent and that the
               Securities shall otherwise be freely transferable on the books
               and records of the Company as and to the extent provided in this
               Agreement and the Registration Rights Agreement. Nothing in this
               Section shall affect in any way the Buyer's obligations and
               agreement set forth in Section 2.7 hereof to comply with all
               applicable prospectus delivery requirements, if any, upon re-sale
               of the Securities. If a Buyer provides the Company with (i) an
               opinion of counsel, in form, substance and scope customary for


                                       20


               opinions of counsel in comparable transactions and reasonably
               satisfactory to the Company, to the effect that a public sale or
               transfer of such Securities may be made without registration
               under the 1933 Act and such sale or transfer is effected or (ii)
               the Buyer provides reasonable assurances that the Securities can
               be sold pursuant to Rule 144, the Company shall permit the
               transfer, and, in the case of the Conversion Shares and Warrant
               Shares, promptly instruct its transfer agent to issue one or more
               certificates, free from any restrictive legend, in such name and
               in such denominations as specified by such Buyer.


          6.   CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL. The obligation of
               the Company hereunder to issue and sell the Preferred Shares and
               Warrants to a Buyer at Closing is subject to the satisfaction, at
               or before the Closing Date, of each of the following conditions
               thereto, provided that these conditions are for the Company's
               sole benefit and may be waived by the Company at any time in its
               sole discretion:

          6.1. Each Buyer shall have executed this Agreement and the
               Registration Rights Agreement, and delivered the same to the
               Company.

          6.2. Each Buyer shall have delivered the Purchase Price in accordance
               with Section 1.2 above.

          6.3. The Certificate of Designation shall have been accepted for
               filing with the Secretary of State of the State of Delaware.

          6.4. The representations and warranties of the applicable Buyer shall
               be true and correct in all material respects as of the date when
               made and as of the Closing Date as though made at that time
               (except for representations and warranties that speak as of a
               specific date, which representations and warranties shall be true
               and correct as of such date), and the applicable Buyer shall have
               performed, satisfied and complied in all material respects with
               the covenants, agreements and conditions required by this
               Agreement to be performed, satisfied or complied with by the
               applicable Buyer at or prior to the Closing Date.

          6.5. No litigation, statute, rule, regulation, executive order,
               decree, ruling or injunction shall have been enacted, entered,
               promulgated or endorsed by or in any court or governmental
               authority of competent jurisdiction or any self-regulatory
               organization having authority over the matters contemplated
               hereby which prohibits the consummation of any of the
               transactions contemplated by this Agreement.

          7.   CONDITIONS TO EACH BUYER'S OBLIGATION TO PURCHASE. The obligation
               of each Buyer hereunder to purchase the Preferred Shares and
               Warrants at the Closing is subject to the satisfaction, at or
               before the Closing Date, of each of the following conditions,
               provided that these conditions are for such Buyer's sole benefit
               and may be waived by such Buyer at any time in its sole
               discretion:

          7.1. The Company shall have executed this Agreement and the
               Registration Rights Agreement, and delivered the same to the
               Buyer.




                                       21


          7.2. The Company shall have delivered to such Buyer duly executed
               certificates (in such denominations as the Buyer shall request)
               representing the Preferred Shares and duly executed Warrants
               purchased at such Closing in accordance with Section 1.2 above.

          7.3. The Certificate of Designation shall have been accepted for
               filing with the Secretary of State of the State of Delaware, and
               a copy thereof certified by such Secretary of State shall have
               been delivered to such Buyer.

          7.4. The Irrevocable Transfer Agent Instructions, in form and
               substance satisfactory to a majority-in-interest of the Buyers,
               shall have been delivered to and acknowledged in writing by the
               Company's Transfer Agent.

          7.5. The representations and warranties of the Company shall be true
               and correct in all material respects as of the date when made and
               as of the Closing Date as though made at such time (except for
               representations and warranties that speak as of a specific date,
               which representations and warranties shall be true and correct as
               of such date) and the Company shall have performed, satisfied and
               complied in all material respects with the covenants, agreements
               and conditions required by this Agreement to be performed,
               satisfied or complied with by the Company at or prior to the
               Closing Date.

          7.6. No litigation, statute, rule, regulation, executive order,
               decree, ruling or injunction shall have been enacted, entered,
               promulgated or endorsed by or in any court or governmental
               authority of competent jurisdiction or any self-regulatory
               organization having authority over the matters contemplated
               hereby which prohibits the consummation of any of the
               transactions contemplated by this Agreement.


          8.   GOVERNING LAW; MISCELLANEOUS.

          8.1. GOVERNING LAW. This Agreement shall be governed by and construed
               in accordance with the laws of the State of New York applicable
               to agreements made and to be performed in the State of New York
               (without regard to principles of conflict of laws). Both parties
               irrevocably consent to the exclusive jurisdiction of the United
               States federal courts and the state courts located in New York
               City, New York with respect to any suit or proceeding based on or
               arising under this Agreement, the agreements entered into in
               connection herewith or the transactions contemplated hereby or
               thereby and irrevocably agree that all claims in respect of such
               suit or proceeding may be determined in such courts. Both parties
               irrevocably waive the defense of an inconvenient forum to the
               maintenance of such suit or proceeding. Both parties further
               agree that service of process upon a party mailed by first class
               mail shall be deemed in every respect effective service of
               process upon the party in any such suit or proceeding. Nothing
               herein shall affect either party's right to serve process in any
               other manner permitted by law. Both parties agree 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.



                                       22


          8.2. COUNTERPARTS; SIGNATURES BY FACSIMILE. This Agreement may be
               executed in one or more counterparts, all of which shall be
               considered one and the same agreement and shall become effective
               when counterparts have been signed by each party and delivered to
               the other party. This Agreement, once executed by a party, may be
               delivered to the other party hereto by facsimile transmission of
               a copy of this Agreement bearing the signature of the party so
               delivering this Agreement.

          8.3. HEADINGS. The headings of this Agreement are for convenience of
               reference and shall not form part of, or affect the
               interpretation of, this Agreement.

          8.4. SEVERABILITY. If any provision of this Agreement shall be invalid
               or unenforceable in any jurisdiction, such invalidity or
               unenforceability shall not affect the validity or enforceability
               of the remainder of this Agreement or the validity or
               enforceability of this Agreement in any other jurisdiction.

          8.5. ENTIRE AGREEMENT; AMENDMENTS. This Agreement and the instruments
               referenced herein contain the entire understanding of the parties
               with respect to the matters covered herein and therein and,
               except as specifically set forth herein or therein, neither the
               Company nor the Buyer makes any representation, warranty,
               covenant or undertaking with respect to such matters. No
               provision of this Agreement may be waived or amended other than
               by an instrument in writing signed by the party to be charged
               with enforcement.

          8.6. NOTICES. Any notices required or permitted to be given under the
               terms of this Agreement shall be sent by certified or registered
               mail (return receipt requested) or delivered personally or by
               courier (including a recognized overnight delivery service) or by
               facsimile and shall be effective five days after being placed in
               the mail, if mailed by regular United States mail, or upon
               receipt, if delivered personally or by courier (including a
               recognized overnight delivery service) or by facsimile, in each
               case addressed to a party. The addresses for such communications
               shall be:


               If to the Company:

                            NX Networks Inc.
                            13595 Dulles Technology Drive
                            Herndon, Virginia 20171
                            Attention:  General Counsel
                            Facsimile:  (703) 793-1043

               With copy to:

                            John T. Capetta, Esq.
                            Kelley Drye & Warren LLP
                            Two Stamford Plaza
                            281 Tresser Boulevard
                            Stamford, CT 06901
                            Facsimile: 203-327-2669



                                       23


               If to any Buyer: To each Buyer at the address set forth
          immediately below such Buyer's name on the signature pages hereto,
          with a copy to each of the other Buyers.

               Each party shall provide notice to the other party of any change
          in address.

          8.7. SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and
               inure to the benefit of the parties and their successors and
               assigns. Neither the Company nor any Buyer shall assign this
               Agreement or any rights or obligations hereunder without the
               prior written consent of the other. Notwithstanding the
               foregoing, subject to Section 2.6, any Buyer may assign its
               rights hereunder to any person that purchases Securities in a
               private transaction from a Buyer or to any of its "affiliates,"
               as that term is defined under the 1934 Act, without the consent
               of the Company.

          8.8. THIRD PARTY BENEFICIARIES. This Agreement is intended for the
               benefit of the parties hereto and their respective permitted
               successors and assigns, and is not for the benefit of, nor may
               any provision hereof be enforced by, any other person.

          8.9. SURVIVAL. The representations and warranties of the Company and
               the agreements and covenants set forth in Sections 3, 4, 5 and 8
               shall survive the closing hereunder notwithstanding any due
               diligence investigation conducted by or on behalf of the Buyers.
               The Company agrees to indemnify and hold harmless each of the
               Buyers and all their officers, directors, employees and agents
               for loss or damage arising as a result of or related to any
               breach or alleged breach by the Company of any of its
               representations, warranties and covenants set forth in Sections
               3, 4 and 5 hereof or any of its covenants and obligations under
               this Agreement or the Registration Rights Agreement, including
               advancement of expenses as they are incurred.

          8.10. PUBLICITY. The Company and each of the Buyers shall have the
               right to review a reasonable period of time before issuance of
               any press releases, filings with the SEC, NASD or any stock
               exchange or interdealer quotation system, or any other public
               statements with respect to the transactions contemplated hereby;
               provided, however, that the Company shall be entitled, without
               the prior approval of each of the Buyers, to make any press
               release or public filings with respect to such transactions as is
               required by applicable law and regulations (although each of the
               Buyers shall be consulted by the Company in connection with any
               such press release or public filing prior to its release or
               public filing and shall be provided with a copy thereof and be
               given an opportunity to comment thereon). In addition, the
               Company agrees that it will not disclose, and will not include in
               any public filing or other announcement, the name of any Buyer,
               unless expressly agreed to in writing by such Buyer or unless and
               until such disclosure is, in the reasonable opinion of counsel to
               the Company, required by law or applicable regulation, and then
               only to the extent of such requirement.

          8.11. FURTHER ASSURANCES. Each party shall do and perform, or cause to
               be done and performed, all such further acts and things, and
               shall execute and deliver all such other agreements,
               certificates,


                                       24


               instruments and documents, as the other party may reasonably
               request in order to carry out the intent and accomplish the
               purposes of this Agreement and the consummation of the
               transactions contemplated hereby.

          8.12. NO STRICT CONSTRUCTION. The language used in this Agreement will
               be deemed to be the language chosen by the parties to express
               their mutual intent, and no rules of strict construction will be
               applied against any party.

          8.13. REMEDIES. The Company acknowledges that a breach by it of its
               obligations hereunder will cause irreparable harm to each Buyer
               by vitiating the intent and purpose of the transactions
               contemplated hereby. Accordingly, the Company acknowledges that
               the remedy at law for a breach of its obligations under this
               Agreement will be inadequate and agrees, in the event of a breach
               or threatened breach by the Company of the provisions of this
               Agreement, that each Buyer shall be entitled, in addition to all
               other available remedies in law or in equity, to an injunction or
               injunctions to prevent or cure any breaches of the provisions of
               this Agreement and to enforce specifically the terms and
               provisions of this Agreement, without the necessity of showing
               economic loss and without any bond or other security being
               required.

          8.14. WITHHOLDING. Each Buyer acknowledges that the Company may be
               required under applicable foreign, federal, state or local law to
               withhold from any cash payment or cash distribution payable to
               any such Buyer as a dividend or liquidated damage payment an
               amount for or on account of any present or future taxes, levies,
               imposts, duties, charges or fees of any nature now or hereafter
               imposed by any governmental or other authority. All amounts
               withheld and paid over by the Company to any governmental or
               other authority on behalf of any Buyer shall be treated for all
               purposes of this Agreement as if such amounts had been paid or
               distributed directly to such Buyer and the Company shall provide
               appropriate evidence to such Buyer of such payments.

          8.15. BUYER'S COUNSEL. Each Buyer acknowledges that it has sought and
               obtained the advice of its own legal counsel in connection with
               its execution and delivery of this Agreement and the performance
               of its obligations hereunder and that Bryan Cave LLP has acted as
               legal counsel only to North Olmsted Partners, L.P. Each Buyer
               further acknowledges that it made its own independent business
               decision to acquire the Securities and has not relied on the
               actions or inactions on any other Buyer or its counsel or other
               representatives when making said business decision. Each Buyer is
               making its own separate investment decision and has no intent to
               act in concert with any other Buyer with respect to the
               Securities purchased hereunder.





                            [signature page follows]








         IN WITNESS WHEREOF, the undersigned Buyers and the Company have caused
this Agreement to be duly executed as of the date first above written.


         NX NETWORKS INC.



         BY:
            -----------------------------



                                       25






[BUYER]


BY:
   -------------------------------

AGGREGATE SUBSCRIPTION AMOUNT:

         Number of Preferred Shares:

         Number of Warrants:

         Aggregate Purchase Price:



                                       29