DIN EN 50136-2-4 VDE 0830-5-2-4:2000-04

Alarm systems - Alarm transmission systems and equipment

Part 2-4: Requirements for equipment used in systems with voice communicators using the public switched telephone network;

German version EN 50136-2-4:1998
Class/Status: Standard, withdrawn
Released: 2000-04
VDE Art. No.: 0830018