IEC 60839-7-20:2001
Withdrawn Standard
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IEC 60839-7-20:2001

IEC 60839-7-20:2001 Alarm systems - Part 7-20: Message formats and protocols for serial data interfaces in alarm transmission systems - Terminal interfaces employing ITU-T Recommendation V.24/V.28 signalling

Summary

Specifies the requirements for standard interfaces between the terminal transceiver of an alarm transmission system and the annunciation equipment. Employs signalling in accordance with ITU-T Recommendation V.24/V.28.

Technical characteristics

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