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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-1358TIE-DS1 (DS1 Tie Trunk)
10
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.
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 entries.
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 far-end PBX. Make sure that the near-end and
far-end switches and any NTCE equipment (the CSU’s) have the
correct administration.
FAIL
(con’t.)
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 10-472. TEST #7 Conference Circuit Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page