Avaya 03-300430 User Manual

This test is destructive.
This test verifies the connectivity of a VC Summer Port across the TDM bus. It aborts if calls 
associated with the port are in progress. Failure of this test indicates an on-board fault 
associated with the port hardware on the circuit pack. The Loopback test runs the following 
tests:

●

A Loop-Around test across the TDM bus.

●

A conference circuit test.

The tests are run in the above order. If the first test fails, the switch returns an Error Code, and 
the second test is not executed.

0–3

FAIL

The NPE of the tested port was transmitting in error. This causes noisy and 
unreliable connections.

1. Replace circuit pack.

PASS

The port is correctly using its allocated time slots.

1. Verify that this is not an intermittent problem by repeating this test up to 

10 times.

2. If complaints continue, examine the station, connections, and wiring.

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