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08/30129607 DC : DRAFT JULY 2008

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

BS 8521 - SPECIFICATION FOR DUAL-TONE MULTI-FREQUENCY (DTMF) SIGNALLING PROTOCOL FOR SOCIAL ALARM SYSTEMS (21TC)
Superseded date

30-04-2009

Published date

23-11-2012

Committee
GW/1/12
DocumentType
Draft
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

ES 201 235-2 : 1.2.1 SPECIFICATION OF DUAL TONE MULTI-FREQUENCY (DTMF) TRANSMITTERS AND RECEIVERS; PART 2: TRANSMITTERS
ES 201 235-1 : 1.1.1 SPECIFICATION OF DUAL TONE MULTI-FREQUENCY (DTMF) TRANSMITTERS AND RECEIVERS; PART 1: GENERAL
ES 201 235-4 : 1.3.1 ACCESS AND TERMINALS (AT); SPECIFICATION OF DUAL-TONE MULTI-FREQUENCY (DTMF) TRANSMITTERS AND RECEIVERS; PART 4: TRANSMITTERS AND RECEIVERS FOR USE IN TERMINAL EQUIPMENT FOR END-TO-END SIGNALLING
BS EN 50134-7:2017 Alarm systems. Social alarm systems Application guidelines
BS EN 50134-3:2012 Alarm systems. Social alarm systems Local unit and controller
BS EN 50134-5:2004 Alarm systems. Social alarm systems Interconnections and communications
BS EN 50134-2:2000 Alarm systems. Social alarm systems Trigger devices
BS EN 50134-1:2002 Alarm systems. Social alarm systems System requirements

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