User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-81ANL-LINE (8-Port Analog Line), ANL-NE-L (8-Port Neon Analog Line)
10
7
13
14
15
(cont’d.)
FAIL
(cont’d.)
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 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.
PASS The port is able to provide an analog transmission path to the station
equipment. User-reported troubles on this port should be investigated by
using other port tests, by examining station wiring, by examining the
station, and by ensuring that the terminal is correctly translated as
off-premises or on-premises.
NOTE:
This test always passes for TN712 Analog circuit packs prior to
Vintage 14 and TN742 circuit packs prior to Vintage 6.
Table 10-30. TEST #47 Loop Around and Conference Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page