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UL 1638A - UL STANDARD FOR SAFETY VISUAL SIGNAL APPLIANCES FOR GENERAL SIGNALING USE - FIRST EDITION Organization: UL
Date: 2016-06-22
Description: These requirements do not cover emergency lighting or exit lighting visual signals. These requirements do not cover annunciators that identify functions of a fire or emergency signaling system or relate information concerning portions thereof.
VA - FED H-08-1 SEC 13850 - FIRE ALARM SYSTEMS Organization: VA
Date: 2005-09-01
Description: It shall include, but not be limited to, alarm initiating devices, alarm notification appliances, control units, fire safety control devices, annunciators, power supplies, and wiring as shown on the drawings and specified.
UL 985 - UL STANDARD FOR SAFETY HOUSEHOLD FIRE WARNING SYSTEM UNITS - SIXTH EDITION; REPRINT WITH REVISIONS THROUGH AND INCLUDING SEPTEMBER 5, 2017 Organization: UL
Date: 2015-05-15
Description: Additional terminals may be provided for the connection of supplementary devices, such as annunciators, remote switches, and the like. A secondary supply, consisting of a rechargeable battery, shall be provided integral with the control unit or provision may be provided for its connection to the control unit.
UL 1023 - UL STANDARD FOR SAFETY HOUSEHOLD BURGLAR-ALARM SYSTEM UNITS - SEVENTH EDITION Organization: UL
Date: 2017-09-01
Description: These requirements cover accessories that are external to the control unit and that are dependent upon the control unit function, such as end-of-line devices, annunciators, remote switches, and the like. Intrusion detection devices, such as motion detectors or sound detectors, are covered by the Standard for Intrusion-Detection Units, UL 639.

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