IEC - International Electrotechnical Commission - 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
withdrawn
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| Organization: | IEC - International Electrotechnical Commission |
| Publication Date: | 9 March 2001 |
| Status: | withdrawn |
| Page Count: | 6 |
| ICS Code (Alarm and warning systems): | 13.320 |
abstract:
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... View More
Document History
IEC 60839-7-12:2001
March 9, 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
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...