Monitoring The T1 Or Pri Signal - Nortel ICS Install Manual

614 / Problems with trunk cartridges service
If through-fed repeaters are used on the T1 span, disable
the internal CSU and connect the DTI to an external CSU.
6. If the problem persists, replace the DTI.

Monitoring the T1 or PRI signal

If you are finding minimal faults with the T1 or PRI signal,
you can monitor the signal to try and isolate the problem. The
monitor jack on the DTI faceplate provides non-intrusive,
bridged in-service monitoring of the T1 or PRI signal. Connect
a protocol analyzer or other test equipment into the monitor
jack to monitor the signal received from the network, and the
signal transmitted by Norstar.
Modular ICS 7.1 Installer Guide
Notify service provider of T1 or PRI signaling
disruption.
Notify your T1 or PRI service provider before
disconnecting your T1 or PRI lines, removing power to
your system, or performing any other action that
disrupts your T1 or PRI signaling. Failure to notify your
T1 or PRI service provider may result in a loss of T1 or
PRI service.
Receive signal
Transmit signal
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