Zhone Technologies, Inc. | IMACS Product Book, Version 4 |
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a) E & M card with 2713 Hz Loop back – Module# 811760:
This feature will provide digital loop back (both audio and signaling) when activated by a 2713 Hz tone of specified level and duration. The requirements are provided by BellCore PUB 42004. When a validated tone is detected the channel should disconnect the user and provide loop back of signals (audio and signaling) received from the network. The loop back must be performed without inserting any gain or loss in the path. After tone activation, the channel shall remain in the loop back mode unless deactivated for a period of 20 minutes (+/- 1 minute) after which the channel shall automatically revert to the idle (non loop back) mode.
b)(Optional)
The purpose of this feature is to provide an
The market for
March 2001 | Page 13 |