-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 K1YqcW0dp5M80hfMxAiV/4w5L5sQXnXRONcMeCHKvLtskRQ4UEwjVwuUuLDI0yA0
 tVEB11dwGWvq2pun2VU5JQ==

<SEC-DOCUMENT>0001005477-07-003301.txt : 20070529
<SEC-HEADER>0001005477-07-003301.hdr.sgml : 20070528
<ACCEPTANCE-DATETIME>20070529113427
ACCESSION NUMBER:		0001005477-07-003301
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070515
FILED AS OF DATE:		20070529
DATE AS OF CHANGE:		20070529

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTEGRATED SECURITY SYSTEMS INC
		CENTRAL INDEX KEY:			0000741114
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATIONS EQUIPMENT, NEC [3669]
		IRS NUMBER:				752422983
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		8200 SPRINGWOOD DR STE 230
		CITY:			IRVING
		STATE:			TX
		ZIP:			75063
		BUSINESS PHONE:		9724448280

	MAIL ADDRESS:	
		STREET 1:		8200 SPRINGWOOD DR SUITE 230
		CITY:			IRVING
		STATE:			TX
		ZIP:			75063

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RENAISSANCE CAPITAL GROWTH & INCOME FUND III INC
		CENTRAL INDEX KEY:			0000919567
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11900
		FILM NUMBER:		07882568

	BUSINESS ADDRESS:	
		STREET 1:		8080 N CENTRAL EXPRWY
		STREET 2:		STE 210 LB59
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75206
		BUSINESS PHONE:		2148918294

	MAIL ADDRESS:	
		STREET 1:		8080 N CENTRAL EXPWY., SUITE 210 LB 59
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75206

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CLEVELAND RUSSELL
		CENTRAL INDEX KEY:			0001132090

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11900
		FILM NUMBER:		07882569

	MAIL ADDRESS:	
		STREET 1:		8080 N CENTRAL EXPWY
		STREET 2:		STE 210 LB 59
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75206
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar123.xml
<DESCRIPTION>AMENDMENT TO FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2007-05-15</periodOfReport>

    <dateOfOriginalSubmission>2007-05-17</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000741114</issuerCik>
        <issuerName>INTEGRATED SECURITY SYSTEMS INC</issuerName>
        <issuerTradingSymbol>IZZI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000919567</rptOwnerCik>
            <rptOwnerName>RENAISSANCE CAPITAL GROWTH &amp; INCOME FUND III INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RENN CAPITAL GROUP</rptOwnerStreet1>
            <rptOwnerStreet2>8080 N. CENTRAL EXPRESSWAY, SUITE 210</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75206</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001132090</rptOwnerCik>
            <rptOwnerName>CLEVELAND RUSSELL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8080 N. CENTRAL EXPRESSWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 210</rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75206</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>8% Convertible Promissory Note</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-05-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionTotalValue>
                    <value>150000</value>
                </transactionTotalValue>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2008-05-15</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <valueOwnedFollowingTransaction>
                    <value>150000</value>
                </valueOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The conversion price shall equal the fair market value of the common stock on the date of recapitalization or change of control, neither of which has occurred.</footnote>
        <footnote id="F2">The principle shall be convertible upon the occurrence of a recapitalization or in connection with and immediately prior to a change in control.</footnote>
        <footnote id="F3">The securities are held by Renaissance Capital Growth &amp; Income Fund III, Inc. (RENN III).  Mr. Cleveland is president and CEO of RENN III.  Mr. Cleveland is also an executive officer of RENN Capital Group, Inc., which serves as investment adviser to RENN III and therefore may be deemed beneficial owner of the shares. Mr. Cleveland disclaims such beneficial ownership.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Russell Cleveland</signatureName>
        <signatureDate>2007-05-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----