BS 8521:2009
Current
Date published:
Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems
Related Information
13.320 Alarm and warning systems
Similar Standards
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AS/NZS 4869.1:2006
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AS/NZS 4869.2:2010
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AS/NZS 4869.2:2010 A1
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AS/NZS 4869.3:2015
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