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                                                                   Exhibit 10.19

TECHNOLOGY FINANCE                            FINOVA
                                                  FINANCIAL INNOVATORS

                                                      FINOVA CAPITAL CORPORATION
                                                      TECHNOLOGY FINANCE

                                                      10 WATERSIDE DRIVE
                                                      FARMINGTON, CT 06032

                                                      TEL 860 676-1918
                                                      FAX 860 676-1814


January 14, 2000


Mr. Ken Vines
Chief Financial Officer
Triton Network Systems, Inc.
8529 Southpark Circle
Orlando, FL 32819

Dear Mr. Vines

FINOVA Capital Corporation ("we", "us", "our", "Lessor" or "Lender") is pleased
to enter into the following transaction ("Credit Facility") with Triton Network
Systems, Inc. ("you", "Lessee" or "Borrower") on the terms and conditions
hereinafter set forth.

LOAN COMMITMENT

The outline of this Loan Commitment is as follows:

Borrower:                           Triton Network Systems, Inc.

Lender:                             FINOVA Capital Corporation

Term of Loans:                      Each Loan shall have a term until payment in
                                    full of forty-nine (49) consecutive months
                                    from the thirtieth day of the month
                                    coincident with or (as the case may be) the
                                    month next following the making of the Loan.

Facility:                           A $5,000,000 line of credit. Subject to the
                                    terms of the Loan Documents (as herein
                                    defined), we will from time to time make
                                    loans to you under the Facility (each, a
                                    "Loan" and collectively, the "Loans"). Once
                                    a Loan is made, it cannot be reborrowed.
                                    Each Loan shall be evidenced by a separate
                                    promissory note in form and substance
                                    satisfactory to Lender.

Purpose of Loans:                   For the acquisition of new production
                                    equipment, environmental chambers, office
                                    furniture, tenant improvements and software.
                                    Lender will finance soft costs in amounts
                                    not in excess of twenty (20%) percent of
                                    the aggregate principal amount of the Loans
                                    outstanding at any time. Such soft costs to
                                    include, but not be limited to delivery,
                                    installation, sales tax, software and tenant
                                    improvements. All items financed with the
                                    proceeds of the Loan are subject to final
                                    review and acceptance by the Lender.

Loan Term Commencement:             Upon delivery of the Equipment or upon each
                                    completion of deliveries of items of
                                    equipment with aggregate cost of not less
                                    than $100,000.00, but no later than 3 months
                                    after delivery.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

Collateral:                         The due payment and performance of all of
                                    Borrower's present and future obligations to
                                    Lender shall be secured by a first perfected
                                    lien on and security interest in all items
                                    financed with the proceeds of a Loan, and
                                    all replacements, substitutions, accessions
                                    and additions thereto, and all proceeds
                                    thereof (including, without limitation,
                                    proceeds of insurance). Each Loan shall be
                                    cross collateralized.

Collateral Location:                8529 Southpark Circle, Orlando, Florida
                                    32819; 8337 Southpark Circle, Orlando, FL
                                    32819; 8403 Southpark Circle, Orlando, FL
                                    32819

Anticipated Delivery:               November 30, 1999 through December 1, 2000.

Closing Date:                       The date on which all conditions to a Loan
                                    are satisfied by the Borrower and the Loan
                                    proceeds are disbursed to the Borrower or to
                                    other Persons at the Borrower's direction.
                                    Each Loan shall have a principal amount of
                                    not less than $100,000 secured by all
                                    Collateral. No Closing Dates shall occur
                                    after December 1, 2000.

Monthly Payments:                   Each Loan shall be paid in forty-nine (49)
                                    consecutive installments of principal and
                                    interest. Each of the first twelve (12)
                                    Monthly Payments shall be in an amount equal
                                    to 2.28% of the principal amount of the Loan
                                    and the next thirty-six (36) Monthly
                                    Payments shall be in an amount equal to
                                    2.60% of the principal amount of the Loan
                                    and the final forty-ninth (49th) Monthly
                                    Payment shall be in an amount equal to ten
                                    (10%) percent of the principal amount of
                                    the Loan. All payments are payable in
                                    advance and the first Monthly Payment
                                    applicable to a Loan shall be payable on the
                                    Closing Date of such Loan and shall be
                                    withheld by the Lender from the Loan
                                    proceeds disbursed by the Lender.

Adjustment to Monthly Payments:     If, on the second business day preceding the
                                    Closing Date for each Loan the highest yield
                                    for the four-year U. S. Treasury Notes as
                                    published in The Wall Street Journal on such
                                    date is greater or less than the yield as
                                    published on November 15, 1999, the Monthly
                                    Payments shall be increased or decreased
                                    (point for point) to reflect such change in
                                    the yield. The yield as of November 15, 1999
                                    was 6.01%. As of the Closing Date, the
                                    Monthly Payments with respect to the
                                    applicable Loan being made shall be fixed
                                    for the entire Term.

Interim Payments:                   If the date we make the Loan to you is not
                                    the thirtieth (30th) or the thirty-first
                                    (31st) day of the month, you will pay, on
                                    the thirtieth (30th) day of the month in
                                    which we make the Loan to you, interest
                                    only, at the applicable adjusted interest
                                    rate, from the date we make the Loan to you
                                    to the twenty-ninth (29th) day of the same
                                    month. If the date we make the Loan to you
                                    is the thirty-first (31st), you will pay
                                    interest at the applicable adjusted interest
                                    rate, from the date we make the Loan to you
                                    to the twenty-nineth (29th) day of the next
                                    following month. The interim payment (as
                                    well as the first Monthly Payment) shall be
                                    payable on the Closing Date and shall be
                                    withheld by the Lender from the Loan
                                    proceeds disbursed by the Lender.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

Insurance:                          Borrower shall, at its own expense, maintain
                                    and deliver evidence to Lender of such
                                    insurance required by lender, written by
                                    insurers and in amounts satisfactory to
                                    Lender.

Loan Provisions and Covenants:      All documentation shall be prepared and
                                    reviewed by us or our counsel and shall be
                                    in form and substance satisfactory to us
                                    and our counsel in our own counsel's sole
                                    and absolute discretion, and shall include,
                                    without limitation, a promissory note (and
                                    related schedule) for each Loan, a master
                                    loan and security agreement, environmental
                                    certificate and indemnity agreement, opinion
                                    of outside counsel, financing statements,
                                    releases, waivers and consents (including,
                                    but not limited to, landlord's and
                                    mortgagee's waivers), corporate resolutions
                                    and incumbencies, insurance letter,
                                    insurance certificates and copies of
                                    insurance policies, and such other
                                    documents as we and our counsel deem
                                    appropriate in our or their sole discretion
                                    (collectively, the "Loan Documents"). The
                                    Loan Documents contemplated hereby shall
                                    contain such conditions, representations,
                                    warranties, covenants, events of default
                                    (including, without limitation, cross
                                    default provisions), remedies, and other
                                    terms and provisions as are customarily
                                    required by lenders in transactions of this
                                    type or as the parties shall agree.

Fees and Expenses:                  The borrower shall be responsible for the
                                    Lender's reasonable fees and expenses in
                                    connection with the transaction, including
                                    the fees and expenses of counsel to prepare
                                    and review the documentation.

Commitment Fee:                     With the acceptance of this Commitment by
                                    the Borrower, a Commitment Fee of $25,000
                                    shall be then due the Lender. The
                                    Application Fee of $25,000 previously paid,
                                    by the Borrower shall be applied to the
                                    Commitment Fee. The Commitment Fee (at our
                                    discretion, less any fees and expenses)
                                    shall be applied on a pro rata basis based
                                    on the amount of each Loan in proportion to
                                    the total Facility to the second Monthly
                                    Loan Payment of each Loan.

Survival:                           This Commitment Letter shall survive
                                    closing. However, if there is any conflict
                                    between the terms and conditions of the
                                    master loan and security agreement (or
                                    schedules) and those of this Commitment
                                    Letter, the master loan and security
                                    Agreement (or schedules) shall control.

This Commitment and the Closing of each Loan contemplated herein are subject
amongst other things, to receipt by us, in form and substance satisfactory to
us and our counsel, at or prior to Closing, of:

         (i)      all documentation and other requirements set forth herein
                  including but not limited to the Loan Documents and other
                  requirements set forth herein and as may be required by our
                  counsel; and




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

         (ii)     our receipt, in form and substance satisfactory to us, of all
                  financial and credit information requested by us, which
                  reflects no material adverse change in your condition,
                  business, financial or otherwise; and

         (iii)    evidence that the Collateral is owned by you, free and clear
                  of all liens and encumbrances; and

         (iv)     evidence of such insurance required by us, written by insurers
                  and in amounts satisfactory to us; and

         (v)      such opinions of your outside counsel, certificates, waivers,
                  releases, Uniform Commercial Code Financing Statements, due
                  diligence searches, and further documents as may be required
                  by us or our counsel; and

         (vi)     evidence that no payment is past due to the Lender from the
                  Borrower, whether as a borrower, a lessee, a guarantor or in
                  some other capacity and that there be no default under any
                  agreement, instrument or document between the Lender and the
                  Borrower (including, without limitation, the Loan Documents);
                  and

         (vii)    evidence that the Borrower is in compliance with the
                  provisions of this Commitment; and

         (viii)   our receipt of Lender's standard year 2000 compliance
                  questionnaire, duly completed by Borrower, and Borrower's
                  answers thereto shall be satisfactory to Lender; and

         (ix)     our receipt of evidence satisfactory to us, in our sole
                  discretion that the subject transaction is environmentally
                  acceptable. We shall have the right to require you to retain
                  the services of a firm acceptable to us and knowledgeable in
                  environmental matters to perform environmental investigations
                  of the Collateral and real property owned, operated or
                  occupied by your (including, without limitation, the
                  Collateral Location) and the surrounding areas. Such
                  investigation may include, but not be limited to, soil and
                  ground water testing to fully identify the scope of any
                  environmental issues impacting the transaction (including
                  Phase I and/or Phase II environmental reports). The scope
                  and results of such investigations must be satisfactory to us,
                  in our sole discretion.

LEASE COMMITMENT

The outline of this Lease Commitment is as follows:

Lessee:                             Triton Network Systems, Inc.

Lessor:                             FINOVA Capital Corporation

Equipment:                          Servers, personal computers, including Intel
                                    based personal computers purchased from
                                    Digital Computer Integration, Corp., PBX's
                                    and engineering software. All Equipment
                                    shall be new and is subject to review and
                                    acceptance by Lessor.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

Credit Line:                        $4,000,000 line of credit for Equipment.
                                    Lessor will finance soft costs in amounts
                                    not in excess of twenty (20%) percent of
                                    the aggregate principal amount of the Lease
                                    outstanding at any time. Such soft costs to
                                    include, but not be limited to delivery,
                                    installation, sales tax, software and tenant
                                    improvements. All items financed with the
                                    proceeds of the Lease are subject to final
                                    review and acceptance by the Lessor.

Equipment Location:                 8529 Southpark Circle, Orlando, FL 32819

Anticipated Delivery:               November 30, 1999 through December 1, 2000

Lease Term Commencement:            Upon delivery of the Equipment or upon each
                                    completion of deliveries of items of
                                    Equipment with aggregate cost of not less
                                    than $100,000.00, but no later than 3 months
                                    after delivery.

Closing Date:                       The date on which all conditions to a
                                    Schedule (as hereinafter defined) are
                                    satisfied by the Lessee and Lessor makes
                                    payment for the Equipment covered under each
                                    Schedule to the Master Lease (each a
                                    "Schedule" and collectively the "Schedules")
                                    with an aggregate cost of not less than
                                    $100,000, but no later than December 1,
                                    2000.

Term:                               From each Closing Date until 36 months from
                                    the 30th day of the month coincident with
                                    or (as the case may be) the month next
                                    following such Closing Date.

Monthly Rent:                       Monthly Rent equal to 3.248% of Equipment
                                    Cost subject to adjustment shall be payable
                                    monthly in advance. The first Monthly Rent
                                    Payment is due upon signing such Schedule.

Adjustment to Monthly
Rent Payments:                      If, on the second business day preceding the
                                    Closing Date for each Schedule, the highest
                                    yield for three-year U.S. Treasury Notes as
                                    published in The Wall Street Journal on such
                                    date is greater or less than the yield as
                                    published on November 15, 1995, the
                                    Monthly Rent Payments shall be increased or
                                    decreased (point for point) to reflect such
                                    change in the yield. The yield as of
                                    November 15, 1999 was 5.91%. As of the
                                    Closing Date, the Monthly Rent Payments
                                    shall be fixed for the entire Term of such
                                    Schedule.

Interim Rent:                       Interim Rent shall accrue from each Closing
                                    Date until the 29th day of the month (27th
                                    day of the month in the case of February)
                                    unless the Closing Date is on the 30th or
                                    31st day of a month. If the Closing Date is
                                    the 31st day of a month, Interim Rent shall
                                    accrue until the 29th day of the next
                                    following month. If the Closing Date is the
                                    30th day of a month, there shall be no
                                    Interim Rent. Interim Rent shall be at the
                                    daily equivalent of the currently adjusted
                                    Monthly Rent Payment.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

Lease End Option:                   Upon giving Lessor 120 days prior written
                                    notice, Lessee may: terminate the Lease
                                    Schedule and return the Equipment to Lessor;
                                    extend for a term not less than 120 days; or
                                    purchase all (but all not less than all) the
                                    equipment at Lease-end expiration for Fair
                                    Market Value.

Automatic Renewal:                  If such written notice is not given, the
                                    Initial Term shall be automatically extended
                                    for a term of 90 days, and continue
                                    thereafter on a month to month term at the
                                    same monthly rent unless and until
                                    terminated by the lessee giving the required
                                    120 days notice.


Net Lease:                          The Lease shall be a net-net-net lease
                                    containing the usual provisions in the
                                    Lessor's lease agreements and such other or
                                    different provisions that are agreed to by
                                    the parties. The Lessee shall be responsible
                                    for maintenance, insurance, taxes, and all
                                    other costs and expenses.

Taxes:                              Sales or use taxes shall be added to the
                                    Equipment Cost or collected on the gross
                                    rentals, as appropriate.

Insurance:                          Lessee shall, at its own expense, maintain
                                    and deliver evidence to Lessor of such
                                    insurance required by Lessor, written by
                                    insurers and in amounts satisfactory to
                                    Lessor.

Lease Provisions and Covenants:     All documentation shall be prepared and
                                    reviewed by us or our counsel and shall be
                                    in form and substance satisfactory to us and
                                    our counsel in our and our counsel's sole
                                    and absolute discretion, and shall include,
                                    without limitation, a schedule, a master
                                    lease agreement, environmental certificate
                                    and indemnity agreement, option of outside
                                    counsel, financing statements, releases,
                                    waivers and consents (including, but not
                                    limited to, Landlord's and mortgagee's
                                    waivers), corporate resolutions and
                                    incumbencies, insurance letter, insurance
                                    certificates and copies of insurance
                                    policies, and such other documents as we
                                    and our counsel deem appropriate in our
                                    or their sole discretion (collectively, the
                                    "Lease Documents"). The Lease Documents
                                    contemplated hereby shall contain such
                                    conditions, representations, warranties,
                                    covenants, events of default (including,
                                    without limitation, cross default
                                    provisions), remedies, and other terms and
                                    provisions as are customarily required by
                                    lessors in transactions of this type or as
                                    the parties shall agree.

Fees and Expenses:                  The Lessee shall be responsible for the
                                    Lessor's fees and expenses in connection
                                    with the transaction, including the
                                    expenses of counsel to prepare and review
                                    the documentation.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

Commitment Fee:                     Without the acceptance of this Commitment by
                                    Lessee, a nonrefundable Commitment Fee of
                                    $12,500 shall be then due to the Lessor. The
                                    $12,500 Application Fee, previously paid
                                    shall be applied to the Commitment Fee. The
                                    Commitment Fee (at our discretion, less any
                                    fees and expenses) shall be applied on a pro
                                    rata basis based on the amount of each
                                    Schedule in proportion to the total Credit
                                    Line to the second Monthly Rent Payment of
                                    each Schedule.

Survival:                           This Commitment Letter shall survive
                                    closing. However, if there is any conflict
                                    between the terms and conditions of the
                                    Master Lease Agreement and Schedules and
                                    those of this Commitment Letter, the Master
                                    Lease Agreement and Schedules shall control.

This Commitment and the Closing of each Schedule contemplated herein are
subject, amongst other things, to receipt by us, in form and substance
satisfactory to use and our counsel, at or prior to Closing, of:

         (i)      all documentation and other requirements set forth herein
                  including but not limited to the Lease Documents and other
                  requirements set forth herein and as may be required by our
                  counsel; and

         (ii)     our receipt, in form and substance satisfactory to us, of all
                  financial and credit information requested by us, which
                  reflects no material adverse change in your condition,
                  business, financial or otherwise; and

         (iii)    evidence that the Equipment is free and clear of all liens and
                  encumbrances; and

         (iv)     evidence of such insurance required by us, written by insurers
                  and in amounts satisfactory to us; and

         (v)      such options of your outside counsel, certificates, waivers,
                  releases, Uniform Commercial Code Financing Statements, due
                  diligence searches, and further documents as may be required
                  by us or our counsel; and

         (vi)     evidence that no payment is past due to the Lessor from the
                  Lessee, whether as a borrower, a lessee, a guarantor or in
                  some other capacity and that there be no default under any
                  agreement, instrument or document between the Lessor and the
                  Lessee (including, without limitation, the Lease Documents);
                  and

         (vii)    evidence that the Lessee is in compliance with the provisions
                  of this Commitment; and

         (viii)   our receipt of Lessor's standard year 2000 compliance
                  questionnaire, duly completed by Lessee, and Lessee's answers
                  thereto shall be satisfactory to Lessor; and




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         (ix)     our receipt of evidence satisfactory to us, in our sole
                  discretion that the subject transaction is environmentally
                  acceptable. We shall have the right to require you to retain
                  the services of a firm acceptable to us and knowledgeable in
                  environmental matters to perform environmental investigations
                  of the Equipment and real property owned, operated or occupied
                  by you (including, without limitation, the Equipment Location)
                  and the surrounding areas. Such investigation may include, but
                  not be limited to, soil and ground water testing to fully
                  identify the scope of any environmental issues impacting the
                  transaction (including Phase I and/or Phase II environmental
                  reports). The scope and results of such investigations must be
                  satisfactory to us, in our sole discretion.

CONDITIONS APPLICABLE TO THE ENTIRE CREDIT FACILITY

Additional Covenants:               There shall be no actual threatened conflict
                                    with, or violation of, any regulatory
                                    statute, standard or rule relating to you,
                                    your present or future operations, or the
                                    Collateral/Equipment.

                                    All information supplied by the you shall be
                                    correct and shall not omit any statement
                                    necessary to make the information supplied
                                    not be misleading. There shall be no
                                    material breach of the representations and
                                    warranties given by you in the Loan/Lease
                                    Agreements. The representations shall
                                    include that the Cost of each item of the
                                    Collateral/Equipment does not exceed the
                                    fair and usual price for like quantity
                                    purchases of such item.

                                    You, as Lessee, shall not be responsible for
                                    any failure of suppliers or manufacturers of
                                    Equipment or their distributors to perform
                                    their obligations to the Lessor or the
                                    Lessee. The master loan/lease agreements
                                    shall also contain the following covenant.

                                    Financial Reporting. During the period of
                                    the Commitment and the Term of the Credit
                                    Facility, you shall deliver to us or cause
                                    to be delivered to us your quarterly
                                    financial statements within 45 days
                                    following the end of each respective fiscal
                                    quarter and annual financial statements
                                    within 90 days following the end of each
                                    respective fiscal year. All annual financial
                                    statements shall be prepared in accordance
                                    with generally accepted accounting
                                    principles ("GAAAP") and be audited by a
                                    reputable firm of certified public
                                    accountants acceptable to us, and shall be
                                    accompanied by a certificate executed by
                                    such certified public accountants to the
                                    effect that you have complied with all
                                    covenants contained in the Loan/Lease
                                    Documents and there are no events of default
                                    thereunder ("Compliance Certificate"). All
                                    quarterly financial statements may be
                                    internally prepared in accordance with GAAP,
                                    and accompanied by a Compliance Certificate
                                    executed by the your chief financial
                                    officer.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

                                    Conditions Precedent.
                                    1. Satisfactory review by FINOVA of the
                                    expiry dates of essential patents.

                                    2. Upon completion of documentation and
                                    subject to collateral/equipment eligibility,
                                    you may draw up to a total of $7,000,000
                                    under either the Loan or Lease Facility, but
                                    in no event more than the amount of the Loan
                                    or Lease Facility. The remaining $2,000,000
                                    may be drawn, under either the Loan or Lease
                                    Facility, upon completion of an Initial
                                    Public Offering of at least $70,000,000 and
                                    subject to documentation and collateral/
                                    equipment eligibility, but in no event
                                    more than the amount of the remaining
                                    balance available under the Loan or Lease
                                    Facility.

Warrant Coverage:                   In consideration for this Commitment by the
                                    us, you shall grant to us prior to the
                                    initial Closing Date, warrants to purchase
                                    shares of your common stock at an amount
                                    equal to 4% of the available Credit
                                    Facility. The exercise price shall be 90% of
                                    the price used in your upcoming Initial
                                    Public Offering. In the event that the
                                    company is sold in a manner other than an
                                    Initial Public Offering, the exercise price
                                    would be the price of the most current
                                    equity offering. The warrants shall be
                                    exercisable from their date of grant until
                                    the close of business seven years from the
                                    date of grant. The warrants shall contain
                                    (a) piggyback registration rights, subject
                                    to customary underwriter cutbacks or
                                    eliminations without adverse
                                    discrimination, (b) not less than 45 days
                                    advance notice and opportunity to exercise
                                    in the event of an initial public offering
                                    ("IPO") or merger, (c) antidilution
                                    protection and nondiscriminatory liquidation
                                    rights, (d) cashless exercise (conversion)
                                    provisions, and (e) a one time right at any
                                    time subsequent to an IPO in conjunction
                                    with other holders of registration rights
                                    granted by you to cause a registration for
                                    public offering at the your expense.

In addition to all other conditions and requirements set forth herein, this
Commitment and the closing of each Loan/Schedule contemplated hereunder shall
be subject, in our sole judgment, that there be no material adverse change in
your financial, business or other condition. This Commitment is not assignable
without our prior written consent. We reserve the right to cancel this
Commitment in the event you or any of your officers, employees, agents or
representatives has made any misrepresentation to us or has withheld any
information from us with regard to the transaction contemplated hereby.

As used in this Commitment, the terms "satisfactory to us" or "acceptable to us"
or "satisfactory to our counsel" or "acceptable to our counsel" or terms of
similar import mean satisfactory or acceptable to us or our counsel in our or
its sole judgment and discretion.

This Commitment and the Loan/Lease Documents shall be governed by the laws of
the State of Arizona. Any dispute arising under this Commitment shall be
litigated by you only in any federal or state court located in the State of
Arizona, or any state court located in Maricopa County, Arizona; and you hereby
irrevocably submit to the personal jurisdiction of such courts and waive any
objection that may exist as to venue or convenience of such forums. Nothing
contained herein shall preclude us from commencing any action in any court
having jurisdiction thereof.




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                                                        FINOVA
                                                           FINANCIAL INNOVATORS

In the event that the Loans/Schedules do not close prior to July 1, 2000
because of your failure to satisfy the conditions for the closing, or because
of a material adverse change in your financial, business or other condition,
this Commitment shall terminate and we shall have no liability to you and we
shall retain, as earned, the Comittment Fee.

In the event we fail to complete this transaction and such failure is not
because of your inability to satisfy all the conditions for closing or a
material adverse change in your financial, business or other condition, our
liability shall be  limited to a return of the Commitment Fee, less Fees and
Expenses due hereunder.

Please execute the copy of this letter acknowledging your acceptance of the
terms hereof and return it to us. If a copy of this Commitment is not executed
and returned by you on or before January 24, 1999, this Commitment shall be
deemed withdrawn.


                                             Sincerely,

                                             FINOVA CAPITAL CORPORATION

                                             By /s/ Dannion C. McGary
                                             --------------------------
                                                    Dannion C. McGary
                                                    Vice President

Accepted this 20 day of January, 2000

TRITON NETWORK SYSTEMS, INC.

By: /s/ Ken Vines
-------------------------------
        Ken Vines
        Chief Financial Officer














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