BS 8521:2009
Specification for dual-tone multi-frequency (DTMF) signalling protocol for social alarm systems
BSI Group , 04/30/2009
$132.00
$264.16
Cross References:BS EN 50134-1BS EN 50134-3ES 201 235-1 ES 201 235-2ES 201 235-4ITU-T Recommendation G.711:1988
Product Information
Published:
04/30/2009
Pages:
30
ISBN:
9780580550799
File Size:
1 file , 820 KB
Language:
English
Note:
This product is unavailable in Ukraine, Russia, Belarus
BS 8521:2009
$132.00
BS 7369:1991
$95.00
