Server Alarms - Avaya Support

CO-TRK (Analog CO Trunk)
Call Seizure test has passed. Problems at the CO may cause this condition rather than
problems with the PBX.
f. Error Types 1025/1281: logged for every version of the CO-TRK/CO-BD. However, no
MINOR alarms will be generated for Central Office Trunks [TN747B] with vintages V8 or
greater. Any failures received by this test will still be logged as Error type 1025/1281.
Check for the use of MFT/Range extenders. If there are extenders present, and there are
no other complaints or maintenance errors against this trunk, then there is a good chance
that Test #3 failed due to excessive loop current and may be ignored.
g. Error Type 3840: test calls made by the Automatic Transmission Measurement System
(ATMS) returned measurements in the unacceptable range.
Error Type 3841: measurements were in the marginal range. Enter list testcall
detail to examine the specific transmission parameters that are out of spec, and
investigate the trunk for that kind of noise. If the noise is acceptable, then the AMTS
thresholds administered on the trunk group screen should be changed.
Table 172: CO Trunk Errors with No Tests 1 of 2
Error
Type
Aux
Data
Error Description and Repair Action
1 57347 Port error. Ringing without ground. This error is detected on an incoming call
on a ground-start CO trunk. The CO trunk circuit pack has not detected a Tip
ground before ringing current is detected. This may indicate that the ground
detector is not working. However, the call will be accepted. Busyout the
affected port, and run a long test. Observe the test results. If any tests fail,
refer to the description of the tests and the associated error codes. Release
the port. If users continue to report troubles, check for other errors and make
test calls to determine whether the problem should be referred to the CO.
257 50176 Battery reversal detected. This is usually caused by the CO. This is detected
if the direction of the loop current changes from normal to reverse for at least
40 msec. Could occur if the trunk was just installed and for some reason the
Tip and Ring wires were reversed at the PBX. If battery reversals occur
during dialing, wrong numbers may result. Refer problem to CO. Ask them to
remove the battery reversal option.
513 57364 Ground detector stuck active. After several occurrences, an on-board minor
alarm is generated. Run the short test sequence. If test aborts with Error
Code 1000, disconnect Tip and Ring and repeat short test. If test still aborts,
replace circuit pack. If test passes, refer problem to CO. If any other error
code is received, pursue that problem.
769 57392 CO not releasing after call is dropped from PBX end, or the loop is not open
after a disconnect. After several occurrences, an off-board or on-board
warning alarm is generated. Refer problem to CO.
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Communication Manager Release 5.0 Issue 4 January 2008 661