EXHIBIT 10.2

THESE  SECURITIES HAVE NOT BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933 OR
QUALIFIED UNDER APPLICABLE STATE SECURITIES LAWS.  UNLESS THEY ARE SOLD PURSUANT
TO RULE 144  PROMULGATED BY THE SECURITIES  AND EXCHANGE  COMMISSION  UNDER SAID
ACT,  THEY  MAY NOT BE SOLD OR  OTHERWISE  TRANSFERRED  IN THE  ABSENCE  OF SUCH
REGISTRATION  AND  QUALIFICATION  WITHOUT AN OPINION OF COUNSEL  FOR THE HOLDER,
REASONABLY  SATISFACTORY TO COUNSEL FOR THE COMPANY,  THAT SUCH REGISTRATION AND
QUALIFICATION ARE NOT REQUIRED.

                                 PROMISSORY NOTE

$1,298,500                                                         June 28, 1996


         FOR VALUED RECEIVED, the undersigned,  SHEPHERD SURVEILLANCE SOLUTIONS,
INC., a Nevada corporation (the "Company"),  hereby promises to pay to the order
of TRILON DOMINION  PARTNERS,  L.L.C., a Delaware limited liability company (the
"Lender"),  the principal sum of ONE MILLION TWO HUNDRED  NINETY EIGHT  THOUSAND
FIVE  HUNDRED  DOLLARS  ($1,298,500),  in lawful  money of the United  States of
America,  together with interest on the unpaid principal balance from day-to-day
remaining  computed  from  the last  Interest  Payment  Date  (as  such  term is
hereinafter  defined)  until the  maturity  of this  Note on June 28,  1999 (the
"Maturity  Date") at an annual  rate equal to the prime rate of Chase  Manhattan
Bank,  N.A.,  as announced  from time to time (the "Prime  Rate"),  plus 4% (the
"Interest  Rate"),  at the Lender's  principal place of business  located at 250
Park Avenue, New York, New York 10017, or such other address as the Lender shall
notify the Company in writing.

         1. For purposes of calculating  interest accrued hereon at the Interest
Rate,  interest on this  Promissory Note (the "Note") shall be calculated on the
basis of a 360 day year.

         2. Interest  shall be payable  quarterly in arrears on the first day of
the first  month of each  calendar  quarter  ("Interest  Payment  Date") for the
immediately preceding quarter commencing July 1, 1996. All outstanding principal
and all accrued and unpaid interest on this Note shall be due and payable on the
Maturity Date.

         From the date hereof until the first anniversary of such date, interest
shall, at the option of the Borrower,  be payable either (i) in cash, or (ii) by
capitalizing  the amount of such  interest  and adding  such  amount to the then


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outstanding  principal  amount of the Note as of such Interest Payment Date, and
interest shall continue to accrue on such additional principal amount.

         3. Should the  principal  of, or any  installment  of the  principal or
interest  on,  this Note become due and payable on any day other than a business
day, the Maturity Date thereof shall be extended to the next succeeding business
day and interest shall be payable with respect to such extension.

         4. Except as herein  provided,  the Company  waives demand for payment,
presentment,  protest,  notice of protest  and  non-payment  or other  notice of
default, notice of acceleration and intention to accelerate, and agrees that its
liability  under this Note shall not be affected by any renewal or  extension in
the time of payment hereof,  or by any indulgences,  or by any release or change
in any security for the payment of this Note.

         5. No waiver by the Lender of any of its rights or  remedies  hereunder
or under any other document  evidencing or securing this Note or otherwise shall
be considered a waiver of any other subsequent right or remedy of the Lender; no
delay or omission in the exercise or  enforcement by the Lender of any rights or
remedies  shall  ever be  construed  as a waiver  of any  right or remedy of the
Lender; and no exercise or enforcement of any such rights or remedies shall ever
be held to exhaust any right or remedy of the Lender.

         6. This Note is being issued pursuant to that certain Credit  Agreement
dated as of the date hereof  between  the  Company  and the Lender (the  "Credit
Agreement").  The  terms  of  this  Note  include  those  stated  in the  Credit
Agreement, including, without limitation, the provisions in the Credit Agreement
relating to Events of Default (as such term is defined in the Credit  Agreement)
and remedies.  This Note is subject to all such terms,  and holders of this Note
are referred to the Credit for a statement of such terms.

         7. Upon the occurrence of an Event of Default, the interest rate on the
unpaid  principal  balance  outstanding  under  this Note  shall be equal to the
lesser of (i) the Prime  Rate plus 8%, or (ii) the  maximum  interest  rate then
permitted by law.

         8. This Note is being  executed  and  delivered,  and is intended to be
performed  in the State of New York.  Except to the extent  that the laws of the
United States may apply to the terms hereof,  the substantive  laws of the State
of  New  York  shall  govern  the  validity,   construction,   enforcement   and
interpretation of this Note.

         9. If this Note is placed in the hands of an attorney  for  collection,
and if it is collected  through any legal  proceedings at law or in equity or in
bankruptcy, receivership or other court proceedings, the Company promises to pay
all costs and expenses of collection,  including, but not limited to, court cots
and the reasonable attorneys' fees of the holder hereof.


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         10.  Whenever  this Note  requires  or permits any  consent,  approval,
notice,  request,  or demand from one party to another,  the consent,  approval,
notice,  request,  or demand  must be in  writing to be  effective  and shall be
deemed to have been given when delivered by facsimile (with  confirmed  receipt)
or reliable  courier or five (5) days after being deposited in the United States
mail registered or certified,  return receipt requested,  addressed to the party
to be notified  at the address set forth below (or at such other  address as may
have been designated by written notice).

         11. The Company, for itself, its successors and assigns,  covenants and
agrees that it will not incur any secured  indebtedness or indebtedness  that is
senior or pari passu to the  indebtedness of the Company under this Note without
first obtaining the written consent of the holder of this Note.

         The address for the Company for all purposes contained in this Note and
for the notices  hereunder  shall be: 10 Aviator  Way,  Ormond,  Florida  32174,
Attention: Mr. Thomas Makmann.

         The address of the Lender for all  purposes  contained in this Note and
for all notices  hereunder shall be: 250 Park Avenue,  New York, New York 10017,
Attention: Mr. Ronald W. Cantwell.

         Executed as of the day and year first above written.

                                            SHEPHERD SURVEILLANCE
                                              SOLUTIONS, INC.


                                            By: /s/ M. Thomas Makmann
                                                   -----------------------------
                                            Name:        M. Thomas Makmann
                                            Title:       President and CEO