DIN EN 50136-1-4 VDE 0830-5-1-4:2000-04

Alarm systems - Alarm transmission systems and equipment

Part 1-4: Requirements for systems with voice communicators using the public switched telephone network;

German version EN 50136-1-4:1998
Class/Status: Standard, withdrawn
Released: 2000-04
VDE Art. No.: 0830014