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  • BS 8521:2009

BS 8521:2009

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

BSI Group, 04/30/2009

Publisher: BS

File Format: PDF

$125.00$251.46


Published:30/04/2009

Pages:30

File Size:1 file , 820 KB

Note:This product is unavailable in Ukraine, Russia, Belarus



Cross References:
BS EN 50134-1
BS EN 50134-3
ES 201 235-1
ES 201 235-2
ES 201 235-4
ITU-T Recommendation G.711:1988


All current amendments available at time of purchase are included with the purchase of this document.

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