DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-917HYB-LINE (Hybrid Line)
9
Hybrid Line Local Digital Looparound Test (#58)
This test checks the control channel between the Switch Processing Element
(SPE) and the port’s digital circuitry. The SPE sends transparent data to the
on-board microprocessor and compares the data echoed back. This test is
repeated three times.
57 FAIL Hybrid Circuit Test failed. This could result in noisy or bad connections.
1. This error can be caused by a disconnected terminal. First, ensure that the
terminal is connected and the wiring is OK.
2. Run circuit pack tests to check the Tone Generator circuit pack and the
Tone Detector circuit pack using the test board UUCSS short command.
3. Resolve any problems that are detected on the Tone Generator circuit pack
or Tone Detector circuit pack.
4. If the Tone Generator and Tone Detector circuit packs are functioning
properly, and the test still fails, replace the Hybrid Line circuit pack.
NOTE:
If the Hybrid Circuit and Conference Circuit Test fails for all ports on a
circuit pack, a -5 volt power problem is indicated. The AC power unit may
be defective. The system may contain a TN752 power unit circuit pack
OR a 631DB AC power unit,
but not both types of power units.
To
investigate problems with a power unit, refer to “CARR-POW”.
PASS Hybrid Circuit and Conference Circuit Test passed. The hybrid circuitry is
transmitting properly.
1. If complaints still exist, investigate by using other port tests, and by
examining the station, wiring, and connections.
0NO
BOARD
The test could not relate the internal ID to the port (no board). This could be due
to incorrect translations, no board inserted, an incorrect board inserted, or an
insane board inserted.
1. Check that the board translations are correct. Use the list config
command, and resolve any problems.
2. If the board was found to be correctly inserted in step 1, issue the busyout
board command.
3. Issue the reset board command.
4. Issue the release busy board command.
5. Issue the test board long command. This should re-establish the linkage
between the internal ID and the port. If this is not the case, check that there
is a valid board inserted.
Table 9-351. TEST #57 Hybrid Circuit and Conference Circuit Test — Continued
Error
Code
Tes t
Result Description/ Recommendation
Continued on next page
