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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1524TTR-LEV (TTR Level)
10
2. Issue the change system-parameters maintenance command. Check
the administered value(s) for TTRs and CPTRs for service on the Tone
Detector circuit packs or for CCRs on the Call Classifier Port (CLSFY-PT)
circuit pack. If a threshold value is set too high, change it to a lower value
via the change system-parameters maintenance command and wait
one minute for the alarm to clear.
To determine the correct TTR, CPTR, and Call Classifier port values,
check the total number of Tone Detector and Tone-Clock circuit pack and
Call Classifier circuit packs (TN744) currently in the system. A Tone
Detector circuit pack has two GPTD ports and four DTMR ports. A Call
Classifier circuit pack has eight ports. Verify that the total number of
GPTD-PTs, DTMR-PTs, and/or CLSFY-PTs in the system is greater than or
equal to their respective administered threshold values. If not, then you
must either (1) add more Tone Detector circuit packs and/or Call Classifier
circuit packs to the system as required or (2) reduce the threshold to
match the number in the system. If after (1) adding more Tone Detector
circuit packs and/or Call Classifier circuit packs or (2) reducing the
threshold, the TTR Level alarm is still present, then proceed to Step 3.
3. Execute the display error command. Look for a GPTD-PT, DTMR-PT, or
CLSFY-PT that has been busied out. A port that has been busied out has a
value of 18 in the error type field of the Hardware Error Log.
For each of the busied-out ports, use the following procedure:
■ Determine why the port was busied out.
■ If the port can be placed back into service, test the port via the test
port PCSSpp command.
■ If all the tests pass, release the port via the release port PCSSpp
command. Then wait one minute for the TTR Level alarm to clear.
If this does not clear the TTR Level alarm, proceed to Step 4.
4. Execute the display alarm command. Determine the address of the Tone
Detector circuit pack which contains the defective (alarmed) GPTD-PT or
DTMR-PT.
Execute the test board PCSS long rep 3 command where PCSS is the
address (that is, port network number, carrier designation, and slot
address) of the Tone Detector circuit pack or Call Classifier circuit pack
containing the defective (alarmed) GPTD-PT or DTMR-PT.
If this does not clear the TTR Level alarm, proceed to Step 5.
5. At this point, the only way to clear the alarm is to replace the Tone
Detector circuit pack or Call Classifier circuit pack containing the
defective (alarmed) GPTD-PT, DTMR-PT or CLSFY-PT.