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Communication Manager Maintenance-Object Repair Procedures
420 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
7 FAIL The conference test or the noise test failed. This could cause noisy or
unreliable connections, or users calling this port may hear an echo. The
problem can also be off-board, as described below.
13 The reflective loop around with gain set to low and the 600-ohm balance
failed. This will cause noisy or unreliable connections.
14 The reflective loop around test (with the gain set to high, using RC balance)
failed. This could cause noisy or unreliable connections. The problem can
also be off-board, as described below.
15 The nonreflective loop-around test failed. This could cause noisy or
unreliable connections, or users calling this port may hear an echo. The
problem can also be off-board as described below.
1. Disconnect the terminal equipment from the circuit pack at the
cross-connect and run the test again.
2. If the test fails again, replace the circuit pack and reconnect the
terminal equipment. If the test passes the second time, then the test
results were affected by the terminal equipment connected to the port.
In this case, ignore the results of this test if every other test passes or
aborts and the station is operating properly. Failure of test 47 does not
cause an alarm. If there are failures of other tests, then investigate
those errors. User reported troubles with this port should be
investigated by using other port tests, by examining station wiring, and
by examining the station to ensure that it is correctly translated as
off-premises or on-premises.
If the Looparound and Conference circuit test fails for every port on a circuit
pack, a -5 Volt power problem is indicated. If a TN736 or TN752 power unit
circuit pack is present, either the 631DB AC power unit or the 676B DC
power unit may be defective. (The 631DB power unit is used in a medium
cabinet powered by an AC source. The 645B power unit is used in a
medium cabinet powered by a DC power source.) The system may contain
a TN736 or TN752 power unit circuit pack or a 631DB AC power unit, but
not both types of power units. To investigate problems with the power unit,
see the RMC-ENV MO (
S8700 IP), or the CARR-POW MO (S8700 MC). If a
red LED is lit on TN736 or TN752 power unit circuit pack, replace the pack.
If the test fails on more than 1 port, check for errors on the TONE-BD or the
TONE-PT. If errors, take appropriate actions. When the tone errors are
cleared, rerun the test.
Table 123: Test #47 Loop Around and Conference Test (continued)
Error
Code
Test
Result
Description / Recommendation
4 of 5