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Home>IEC 60839-7-12:2001

IEC 60839-7-12:2001

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

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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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