UL Subject 205
Subject for Burglary Protection Systems and Services, UL1 Industry Advisory Conference (Bulletin, 5/22/2000)
standard by Underwriters Laboratories, 05/22/2000
UL Subject 864
Standard for Control Units for Fire Protective Signaling Systems (Bulletin, 5/15/2000)
standard by Underwriters Laboratories, 05/15/2000