BS-8521 › Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems

BS-8521 - 2009 EDITION - CURRENT


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Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems

Keywords

Messages;Control functions;Alarm systems;Information transfer;Telephone signalling equipment;Acoustic signals;Warning devices;Digital signals;Data transmission;Special-purpose alarms;Codes;Telephone networks

To find similar documents by classification:

13.320 (Alarm and warning systems Burglar alarm and warning systems, see 13.310 Warning devices for road vehicles, see 43.040.20)

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Document Number

BS 8521:2009

Revision Level

2009 EDITION

Status

Current

Publication Date

April 30, 2009

Replaces

BS 7369:1991

Page Count

30

ISBN

9780580550799

Committee Number

GW/1/12