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PD 7002:1995

Заменен
Essential requirements for connection of terminal equipment to analogue interfaces of public switched telecommunications networks using either the earth calling, the loop calling, disconnect clearing, the loop calling, guarded clearing or the loop calling, unguarded clearing signalling method — 52 стр.
ICS
35.180 IT. Including modems / Информационно-технологические терминалы и другие периферийные устройства. Включая модемы