IEC 60839-7-12:2001
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IEC 60839-7-12:2001

IEC 60839-7-12:2001 Alarm systems - Part 7-12: Message formats and protocols for serial data interfaces in alarm transmission systems - PTT interfaces for dedicated communications channels using ITU-T Recommendation V.23 signalling

Summary

Specifies the requirements for standard interfaces between the alarm system transceivers and transmission network where both form part of a dedicated channel alarm transmission system as defined in IEC 60839-5-4.

Technical characteristics

Publisher International Electrotechnical Commission (IEC)
Publication Date 03/09/2001
Edition 1.0
Page Count 6
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