UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. 2)
Integrated Security Systems, Inc.
_____________________________________________________________________________
(Name of Issuer)
Common Stock
_____________________________________________________________________________
(Title of Class of Securities)
45812J101
__________________________
(CUSIP Number)
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13G
CUSIP No. 45812J101
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1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO.
Renaissance US Growth and Income Trust PLC None-Foreign
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2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a)
(b)
_____________________________________________________________________________
3. SEC USE ONLY
_____________________________________________________________________________
4. CITIZENSHIP OR PLACE OF ORGANIZATION
England
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NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:
_____________________________________________________________________________
5. SOLE VOTING POWER
5,647,187 shares
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6. SHARED VOTING POWER
None
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7. SOLE DISPOSITIVE POWER
5,647,187 shares
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8. SHARED DISPOSITIVE POWER
None
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9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
5,647,187 shares
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10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
Not applicable
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11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
38.76%
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12. TYPE OF REPORTING PERSON
IV
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ITEM 1.
(a) Name of Issuer.
Integrated Security Systems, Inc. ("Company")
(b) Address of Issuer's principal Executive Offices
8200 Springwood Drive, Suite 230
Irving, TX 75063
ITEM 2.
(a) Name of Person Filing
Renaissance US Growth and Income Trust PLC ("Filer")
(b) Address of principal Business Office or, if none, Residence
c/o Renaissance Capital Group, Inc., Investment Manager
8080 North Central Expressway, Suite 210, LB 59
Dallas, TX 75206-1857
(c) Citizenship
England
(d) Title of Class of Securities
Common Stock
(e) CUSIP Number
No CUSIP Number; traded on London Stock Exchange
However, ISIN No. is GB00007325185
ITEM 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b), check
whether the person filing is a:
(a) ______ Broker or Dealer registered under Section 15 of the Act
(b) ______ Bank as defined in section 3(a)(6) of the Act
(c) ______ Insurance Company as defined in section 3(a)(19) of the Act
(d) ______ Investment Company registered under section 8 of the
Investment Company Act
(e) ______ Investment Adviser registered under section 203 of the
Investment Advisers Act of 1940
(f) ______ Employee Benefit Plan, Pension Fund which is subject to the
provisions of the Employee Retirement Income Security Act of
1974 or Endowment Fund; see section 240.13d-1(b)(1)(ii)(F)
(g) ______ Parent Holding Company, in accordance with section
240.13d-1(b)(ii)(G)(Note: See Item 7)
(h) ______ Group, in accordance with section 240.13d-1(b)(1)(ii)(H)
ITEM 4. Ownership.
(a) Amount Beneficially Owned:
At June 1, 1999, Renaissance US Growth & Income Trust PLC owned a
$2,084,101 9% Convertible Debenture due December 1, 2003, convertible
at $0.549 per share; 393,258 shares of the Company's common stock;
$425,000 in 9% Convertible Promissory Notes due on demand, convertible
at $0.549 per share; a warrant to purchase 12,500 shares of the
Company's common stock on or before November 17, 2002; a warrant to
purchase 125,000 shares of the Company's common stock on or before
October 2, 2003; a warrant to purchase 181,818 shares of the Company's
common stock on or before January 14, 2004; and a warrant to purchase
364,299 shares of the Company's common stock. All positions are
convertible within sixty days. Thus, the Filer owns 5,647,187 shares
of the Company's common stock on a fully converted basis.
(b) Percent of Class 38.76%
(c) Number of shares as to which such person has:
(i) sole power to vote or to direct the vote: 5,647,187 shares
(ii) shared power to vote or to direct the vote: None
(iii) sole power to dispose or to direct the disposition of:
5,647,187 shares
(iv) shared power to dispose or to direct the disposition of: None
ITEM 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities, check the following:
ITEM 6. Ownership of More than Five Percent on Behalf of Another Person.
Not applicable.
ITEM 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on By the Parent Holding Company.
Not applicable.
ITEM 8. Identification and Classification of Members of the Group.
Not applicable.
ITEM 9. Notice of Dissolution of Group.
Not applicable.
ITEM 10. Certification.
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect
of changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such purposes or effect.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
Date: June 3, 1999 /S/
___________________________________________
Signature
Renaissance US Growth and Income Trust PLC by
Renaissance Capital Group, Inc., Investment
Manager
Russell Cleveland, President
___________________________________________
Name and Title
