Avaya Definity SI Maintenance Manual page 891

ANL-LINE (8-Port Analog Line), ANL-NE-L (8-Port Neon
Analog Line)
Table 10-35. TEST #47 Loop Around and Conference Test — Continued
Error
Code
7
13
14
15
(cont'd.)
555-233-123
Test
Result
FAIL 1. Disconnect the terminal equipment from the circuit pack at
the cross-connect and run the test again.
(cont'd.)
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 all other tests pass or abort
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.
NOTE:
If the loop around and conference circuit test fails for all
ports 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 a 631DB AC power unit,
refer to the CARR-POW (carrier port power unit for
AC-powered systems) Maintenance documentation. To
investigate problems with a 645B DC power unit, refer to
the CARR-POW (carrier port power unit for DC-powered
systems) Maintenance documentation. If a red LED on
TN736 or TN752 power unit circuit pack is on, 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.
Description/Recommendation
Continued on next page
Issue 4 May 2002 10-105