1624365

BS 8521:2009

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

standard by BSI Group , 04/30/2009

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

Document History

  1. BS 8521:2009

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

    • Most Recent

  2. BS 7369:1991


    Specification for multi-frequency tone signalling protocol for social alarm systems

    • Historical Version