IEC-60839-7-20 › 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

IEC-60839-7-20 - 1ST EDITION - CURRENT


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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.
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Document Number

IEC 60839-7-20 Ed. 1.0 b:2001

Revision Level

1ST EDITION

Status

Current

Publication Date

March 1, 2001

Committee Number

79