content: <PAGE>   1
       AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 13, 1996
                                                    REGISTRATION NO. 33-__________
  ================================================================================
  
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C.  20549
  
                              --------------------
  
                                    Form S-8
  
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
  
                              --------------------
  
                        INTEGRATED SECURITY SYSTEMS, INC.
               (Exact name of registrant as specified in charter)
  
  
  
  <TABLE>
  <S>                                                             <C>
                             Delaware                                          75-2422983
  (State or other jurisdiction of incorporation or organization)  (I.R.S. Employer Identification No.)
  
  
                  8200 Springwood Drive, Suite 230
                        Irving, Texas  75063                                     75063
      (Address of registrant's principal executive offices)                   (Zip Code)
  </TABLE>
  
  
                              --------------------
  
             INTEGRATED SECURITY SYSTEMS, INC. 1993 STOCK OPTION PLAN
                        (AS AMENDED ON DECEMBER 30, 1994)
  
                                Gerald K. Beckmann
                                 President & CEO
                        Integrated Security Systems, Inc.
                         8200 Springwood Drive, Suite 230
                                Irving, TX  75063
                                  (214) 444-8280
              (Name, address and telephone number agent for service)
  
  
                                    Copies to:
                                  DAVID H. ODEN
                             Haynes and Boone, L.L.P.
                           901 Main Street, Suite 3100
                                Dallas, TX  75202
                                  (214) 651-5000
  
                                         
                         CALCULATION OF REGISTRATION FEE
  
  <TABLE>
  <CAPTION>
  ============================================================================================================
  Title of each Class                         Proposed Maximum      Proposed Maximum
  of Securities to be   Amount to be          Offering Price Per    Aggregate Offering    Amount of
  Registered            Registered(1)         Share(2)              Price(2)              Registration Fee 3)
  - ------------------------------------------------------------------------------------------------------------
  <S>                   <C>                   <C>                   <C>                   <C>
  Common Stock,
  $.01 par value        370,680 shares               $3.495            $1,295,527               $447.00
  ============================================================================================================
  </TABLE>
  
  (1)  Plus such indeterminate number of shares as may be issued to prevent
       dilution resulting from stock splits, stock dividends or similar
       transactions in accordance with Rule 416 promulgated under the Securities
       act of 1933, as amended.
  
  (2)  Pursuant to Rule 457(h) and Rule 457(c) under the Securities Act of 1933,
       as amended, the proposed maximum offering price per share and the
       registration fee are based on the reported average of the high and low
       prices on the Nasdaq SmallCap Market on June 6, 1996.
  
  
  
                                    Page 1 of 4
  <PAGE>   2
  
  
                  INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
  
       Integrated Security Systems, Inc. (the "Company") hereby incorporates by
  reference the Company's Registration Statement on Form S-8 (Registration No.
  33-75582) filed with the Securities and Exchange Commission (the "Commission")
  on February 18, 1994, as amended on April 28, 1994 (the "1994 Form S-8").
  
  
     INTEGRATED SECURITY SYSTEMS, INC. 1993 STOCK OPTION PLAN (AS AMENDED ON
                                DECEMBER 30, 1994)
  
       By means of the 1994 Form S-8, the Company registered 129,320 shares of
  Common Stock pursuant to its 1993 Stock Option Plan dated September 7, 1993
  (the "Plan").  This registration statement registers an additional 370,680
  shares of Common Stock issuable pursuant to the Plan, as authorized by the
  Company's stockholders at the Company's Special Meeting of Stockholders held on
  December 30, 1994.
  
  
  
                                      EXHIBITS
  
  <TABLE>
  <S>   <C>
  4.1   The Company's 1993 Stock Option Plan dated September 7, 1993, as amended
        on December 30, 1994.
  
  5.1   Opinion of Haynes and Boone, L.L.P.
  
  23.1  Consent of Price Waterhouse LLP
  
  23.2  Consent of Haynes and Boone, L.L.P. (included in Exhibit 5.1 opinion)
  
  24.1  Power of Attorney (included on the signature page hereto)
  </TABLE>
  
  
  
  
                                     SIGNATURES
  
      Pursuant to the requirements of the Securities Act of 1933, as amended, the
      Registrant certifies that it has reasonable grounds to believe that it
      meets all of the requirements for filing on Form S-8 and has duly caused
      this registration statement to be signed on its behalf by the undersigned,
      thereunto duly authorized, in the City of Irving, State of Texas on June
      10, 1996.
  
  
  
                                           INTEGRATED SECURITY SYSTEMS, INC.     
                                       ------------------------------------------
                                                      (Registrant)               
  
  
                                                 /s/ GERALD K. BECKMANN          
                                       ------------------------------------------
                                                   Gerald K. Beckmann            
                                       Director, Chairman of the Board, President
                                              and Chief Executive Officer        
  
  
  
  
                                    Page 2 of 4
  <PAGE>   3
  
  
                                 POWER OF ATTORNEY
  
       Each of the undersigned hereby appoints Gerald K. Beckmann and James W.
  Casey and each of them (with full power to act alone), as attorney and agents
  for the undersigned, with full power of substitution, for and in the name,
  place and stead of the undersigned, to sign and file with the Securities and
  Exchange Commission under the Securities Act of 1933, as amended, any and all
  amendments and exhibits to this Registration Statement and any and all
  applications, instruments and other documents to be filed with the Securities
  and Exchange Commission pertaining to the registration of the securities
  covered hereby, with full power and authority to do and perform any and all
  acts and things whatsoever requisite or desirable.
  
       Pursuant to the requirements of the Securities Act of 1933, as amended,
  this registration statements has been signed by the following persons in the
  capacities and on the dates indicated.
  
  
  
  
  <TABLE>
  <CAPTION>
        Signature                           Title                         Date
  - ----------------------  ------------------------------------------  -------------
  <C>                     <C>                                         <C>
  /s/ GERALD K. BECKMANN      President, Chief Executive Officer
  - ----------------------          and Chairman of the Board,          
    Gerald K. Beckmann          (Principal Executive Officer)         June 12, 1996
                                                                    
    /s/ JAMES W. CASEY    Vice President and Chief Financial Officer
  - ----------------------       (Principal Financial Officer and       
      James W. Casey            Principal Accounting Officer)         June 12, 1996
  
  /s/ ROBERT M. GALECKE
  - ----------------------
    Robert M. Galecke                      Director                   June 12, 1996
  
   /s/ JOHN P. JENKINS
  - ----------------------
     John P. Jenkins                       Director                   June 12, 1996
  
   /s/ FRANK R. MARLOW                                                
  - ----------------------
     Frank R. Marlow                       Director                   June 12, 1996
  </TABLE>
  
  
  
                                    Page 3 of 4
  <PAGE>   4
  
  
                                   EXHIBIT INDEX
  
  
  <TABLE>
  <CAPTION>
  Exhibit No.                     Description
  - -----------                     -----------
  <S>          <C>
  
     4.1       The Company's 1993 Stock Option Plan dated September 7, 1993, as
               amended on December 30, 1994.
             
     5.1       Opinion of Haynes and Boone, L.L.P.
             
    23.1       Consent of Price Waterhouse LLP
             
    23.2       Consent of Haynes and Boone, L.L.P. (included in Exhibit 5.1
               opinion)
             
    24.1       Power of Attorney (included on the signature page hereto)
  </TABLE>
  
  
  
  
                                    Page 4 of 4
metadata_documents: [{"type": "S-8", "sequence": "1", "description": "FORM S-8", "secsgml_size_bytes": 8957}]
metadata_filer: {"company-data": {"conformed-name": "INTEGRATED SECURITY SYSTEMS INC", "cik": "0000741114", "assigned-sic": "3669", "irs-number": "752422983", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-05963", "film-number": "96580758"}, "business-address": {"street1": "8200 SPRINGWOOD DR STE 230", "city": "IRVING", "state": "TX", "zip": "75063", "phone": "2144448280"}, "mail-address": {"street2": "8200 SPRINGWOOD DR SUITE 230", "city": "IRVING", "state": "TX", "zip": "75063"}}
text: 1
       AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 13, 1996
                                                    REGISTRATION NO. 33-__________
  ================================================================================
  
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C.  20549
  
                              --------------------
  
                                    Form S-8
  
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
  
                              --------------------
  
                        INTEGRATED SECURITY SYSTEMS, INC.
               (Exact name of registrant as specified in charter)
  Delaware                                          75-2422983
  (State or other jurisdiction of incorporation or organization)  (I.R.S. Employer Identification No.)
  
                  8200 Springwood Drive, Suite 230
                        Irving, Texas  75063                                     75063
      (Address of registrant's principal executive offices)                   (Zip Code)
  --------------------
  
             INTEGRATED SECURITY SYSTEMS, INC. 1993 STOCK OPTION PLAN
                        (AS AMENDED ON DECEMBER 30, 1994)
  
                                Gerald K. Beckmann
                                 President & CEO
                        Integrated Security Systems, Inc.
                         8200 Springwood Drive, Suite 230
                                Irving, TX  75063
                                  (214) 444-8280
              (Name, address and telephone number agent for service)
  
                                    Copies to:
                                  DAVID H. ODEN
                             Haynes and Boone, L.L.P.
                           901 Main Street, Suite 3100
                                Dallas, TX  75202
                                  (214) 651-5000
  
                                         
                         CALCULATION OF REGISTRATION FEE
  ============================================================================================================
  Title of each Class                         Proposed Maximum      Proposed Maximum
  of Securities to be   Amount to be          Offering Price Per    Aggregate Offering    Amount of
  Registered            Registered(1)         Share(2)              Price(2)              Registration Fee 3)
  - ------------------------------------------------------------------------------------------------------------
  Common Stock,
  $.01 par value        370,680 shares               $3.495            $1,295,527               $447.00
  ============================================================================================================
  (1)  Plus such indeterminate number of shares as may be issued to prevent
       dilution resulting from stock splits, stock dividends or similar
       transactions in accordance with Rule 416 promulgated under the Securities
       act of 1933, as amended.
  
  (2)  Pursuant to Rule 457(h) and Rule 457(c) under the Securities Act of 1933,
       as amended, the proposed maximum offering price per share and the
       registration fee are based on the reported average of the high and low
       prices on the Nasdaq SmallCap Market on June 6, 1996.
  
                                    Page 1 of 4
  2
  
                  INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
  
       Integrated Security Systems, Inc. (the "Company") hereby incorporates by
  reference the Company's Registration Statement on Form S-8 (Registration No.
  33-75582) filed with the Securities and Exchange Commission (the "Commission")
  on February 18, 1994, as amended on April 28, 1994 (the "1994 Form S-8").
  
     INTEGRATED SECURITY SYSTEMS, INC. 1993 STOCK OPTION PLAN (AS AMENDED ON
                                DECEMBER 30, 1994)
  
       By means of the 1994 Form S-8, the Company registered 129,320 shares of
  Common Stock pursuant to its 1993 Stock Option Plan dated September 7, 1993
  (the "Plan").  This registration statement registers an additional 370,680
  shares of Common Stock issuable pursuant to the Plan, as authorized by the
  Company's stockholders at the Company's Special Meeting of Stockholders held on
  December 30, 1994.
  
                                      EXHIBITS
  4.1   The Company's 1993 Stock Option Plan dated September 7, 1993, as amended
        on December 30, 1994.
  
  5.1   Opinion of Haynes and Boone, L.L.P.
  
  23.1  Consent of Price Waterhouse LLP
  
  23.2  Consent of Haynes and Boone, L.L.P. (included in Exhibit 5.1 opinion)
  
  24.1  Power of Attorney (included on the signature page hereto)
  SIGNATURES
  
      Pursuant to the requirements of the Securities Act of 1933, as amended, the
      Registrant certifies that it has reasonable grounds to believe that it
      meets all of the requirements for filing on Form S-8 and has duly caused
      this registration statement to be signed on its behalf by the undersigned,
      thereunto duly authorized, in the City of Irving, State of Texas on June
      10, 1996.
  
                                           INTEGRATED SECURITY SYSTEMS, INC.     
                                       ------------------------------------------
                                                      (Registrant)               
  
                                                 /s/ GERALD K. BECKMANN          
                                       ------------------------------------------
                                                   Gerald K. Beckmann            
                                       Director, Chairman of the Board, President
                                              and Chief Executive Officer        
  
                                    Page 2 of 4
  3
  
                                 POWER OF ATTORNEY
  
       Each of the undersigned hereby appoints Gerald K. Beckmann and James W.
  Casey and each of them (with full power to act alone), as attorney and agents
  for the undersigned, with full power of substitution, for and in the name,
  place and stead of the undersigned, to sign and file with the Securities and
  Exchange Commission under the Securities Act of 1933, as amended, any and all
  amendments and exhibits to this Registration Statement and any and all
  applications, instruments and other documents to be filed with the Securities
  and Exchange Commission pertaining to the registration of the securities
  covered hereby, with full power and authority to do and perform any and all
  acts and things whatsoever requisite or desirable.
  
       Pursuant to the requirements of the Securities Act of 1933, as amended,
  this registration statements has been signed by the following persons in the
  capacities and on the dates indicated.
  Signature                           Title                         Date
  - ----------------------  ------------------------------------------  -------------
  /s/ GERALD K. BECKMANN      President, Chief Executive Officer
  - ----------------------          and Chairman of the Board,          
    Gerald K. Beckmann          (Principal Executive Officer)         June 12, 1996
                                                                    
    /s/ JAMES W. CASEY    Vice President and Chief Financial Officer
  - ----------------------       (Principal Financial Officer and       
      James W. Casey            Principal Accounting Officer)         June 12, 1996
  
  /s/ ROBERT M. GALECKE
  - ----------------------
    Robert M. Galecke                      Director                   June 12, 1996
  
   /s/ JOHN P. JENKINS
  - ----------------------
     John P. Jenkins                       Director                   June 12, 1996
  
   /s/ FRANK R. MARLOW                                                
  - ----------------------
     Frank R. Marlow                       Director                   June 12, 1996
  Page 3 of 4
  4
  
                                   EXHIBIT INDEX
  Exhibit No.                     Description
  - -----------                     -----------
  4.1       The Company's 1993 Stock Option Plan dated September 7, 1993, as
               amended on December 30, 1994.
             
     5.1       Opinion of Haynes and Boone, L.L.P.
             
    23.1       Consent of Price Waterhouse LLP
             
    23.2       Consent of Haynes and Boone, L.L.P. (included in Exhibit 5.1
               opinion)
             
    24.1       Power of Attorney (included on the signature page hereto)
  Page 4 of 4