DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1050MET-LINE (MET Line)
9
7 FAIL The conference circuit test failed. The conference circuit test is performed only if
the hybrid test passes. The conference circuit test verifies that the network
processing element (NPE) is able to correctly conference several test tones
together. The test is executed in two parts. The first half of the test verifies the
operation of the NPE’s first three conference channels, while the second half
verifies the NPE’s remaining four conference channels. The test puts the NPE in
loop around mode and instructs it to talk on a specified time slot while listening to
a 1004 Hz tone, using the conference channels. A GPTD then measures the
signal and noise levels of the conferenced output and reports whether or not
these are within an acceptable range. The failure may be due to off-board
circumstances, the most common of which is an off-hook occurring during the
test. It is possible that the port may still be functional from a user’s point of view.
Also, check the error logs against the GPTD-BD, the TONE-BD, and the
TONE-PT.
1. This error can be caused by a disconnected terminal. First, ensure that the
terminal is connected and the wiring is OK.
2. Then, issue the display port and the station status commands to determine
if the station is idle. If it is idle, issue the test port command for this port.
3. If test continues to fail, issue the busyout port and the release port
commands, and then retest the port.
57 FAIL Hybrid Circuit Test failed. This can result in noisy or bad connections.
1. Run circuit pack tests to check the Tone Generator circuit pack and the Tone
Detector circuit pack, using test board UUCSS short command.
2. Resolve any problems that are detected on the Tone Generator circuit pack
or Tone Detector circuit pack.
3. If the Tone Generator and Tone Detector circuit packs are functioning
properly, and the test still fails, replace the MET 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. To investigate problems
with a power unit, refer to “CARR-POW”.
Table 9-416. TEST #57 Hybrid Circuit and Conference Circuit Test — Continued
Error
Code
Tes t
Result Description/ Recommendation
Continued on next page
