BS 8521:2009

$118.11

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BS 8521:2009

$118.11

Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems
standard by BSI Group, 04/30/2009

Format: PDF      In Stock

 

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Description

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.

Product Details

Published:
04/30/2009
ISBN(s):
9780580550799
Number of Pages:
30
File Size:
1 file , 820 KB
Product Code(s):
30129608, 30129608, 30129608