DS/EN 50136-2-41998 Edition, February 11, 1998Complete DocumentAlarm systems – Alarm transmission systems and equipment – Part 2-4: Requirements for equipment used in systems with voice communicators using the public switched telephone network
Includes all amendments and changes through Change/Amendment , February 11, 1998
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Product Details:
 Description / Abstract:
This standard specifies the requirements for equipment used in voice comminicators systems utilising the Public Switched Telephone Network which are in addition to those specified in EN 50136-2-1.
 
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