IEC 60839-7-12:2001 Withdrawn
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
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 in IEC 60839-5-4.
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Additional information
| Publication type | International Standard |
|---|---|
| Publication date | 2001-03-09 |
| Withdrawal date | 2022-10-14 |
| Edition | 1.0 |
| Available language(s) | English, English/French |
| TC/SC | TC 79 - Alarm and electronic security systemsrss |
| ICS | 13.320 - Alarm and warning systems |
| Stability date | 2022 |
| Pages | 13 |
| File size | 964 KB |
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