Maintenance Object Repair Procedures
555-233-123
10-528
Issue 4 May 2002
2053
ABORT
At least one of the following errors is found on the DS1 circuit pack:
1281—Loss of signal, 1793—Blue Alarm, 2049—Red Alarm, 2305—
Yellow Alarm, 1537—Hyperactivity.
Look for the above error types in the Hardware Error Log and follow
the procedures given in the appropriate DS1-BD or UDS1-BD
maintenance documentation for the listed error types.
Any
FAIL
The NPE of the tested port did not conference the tones correctly.
This can cause noisy and unreliable connections.
1. Enter the list configuration board UUCSS command. If the
circuit pack is a TN767B vintage 8 or 9, replace the circuit pack
with a TN767C V3 or later. The error log may have error type
1281.
2. Test all administered trunks on the board. If one fails, this could
be an off-board problem (such as an incoming seizure or an
off-hook port seizure during the test). Retest the board.
3. If all of the ports fail, check the CARR-POW (see note below).
4. If several ports fail, check the error log for TONE-BD or
TONE-PT errors. If there are such errors, take the appropriate
action. When the TONE errors have cleared, rerun the test.
5. If the retry passes and troubles have been reported, coordinate
isolation with the CO. Make sure that the switch, the CO, and
any NTCE equipment (the CSUs) have the correct
administration.
6. Replace the circuit pack.
NOTE:
If the 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 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.
Table 10-194.
TEST #7 Conference Circuit Test — Continued
Error
Code
Test
Result
Description/Recommendation
Continued on next page
Summary of Contents for Definity SI
Page 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Page 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...