UL-1635 › Complete Document History
Standard for Digital Alarm Communicator System Units

Complete Current Edition:
   4TH EDITION - DIGITAL BURGLAR ALARM COMMUNIC - April 13, 2018

Obsolete Revision Information:
   CHANGE 03/15 - REVISION CHANGE - CODE A - March 20, 2015
   CHANGE 01/10 - REVISION CHANGE - CODE A - Jan. 5, 2010
   CHANGE 12/04 - REVISION CHANGE - CODE A - Dec. 16, 2004
   3RD EDITION - DIGITAL BURGLAR ALARM COMMUNIC - Jan. 31, 1996
   1991 EDITION - DIGITAL BURGLAR ALARM COMMUNIC - Jan. 1, 1990
   1985 EDITION - DIGITAL BURGLAR ALARM COMMUNIC - Jan. 28, 1985