IEC 60839-5-1 Ed. 1.0 b:1991
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Alarm systems – Part 5: Requirements for alarm transmission systems – Section 1: General requirements for systems
International Electrotechnical Commission , 05/03/1991
Pages: 31
Specifies the general requirements for the performance, reliability and security characteristics of alarm transmission systems. Covers the general requirements for connections providing signalling between an alarm system and an alarm receiving centre.
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