IEC 60839-7-6 Ed. 1.0 b:2001, Alarm systems - Part 7-6: Message formats and protocols for serial data interfaces in alarm transmission systems - Alarm ... ITU-T Recommendation V.24/V.28 signalling

Specifies the requirements for standard interfaces employing ITU-T V.24/V.28 signalling for communications between the control and indicating equipment of an alarm system and transmission equipment used for remote communications, where the transmission equipment is general purpose equipment. Is intended to be used as interfacing to standard modems, packet switching networks, X.25 PADs, etc. This title may contain less than 24 pages of technical content.