Каталог стандартов

+7 (495) 223-46-76 +7 (812) 309-78-59
inform@normdocs.ru

IEC 60839-7-12:2001 ed1.0

Отменен
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 — 13 стр.