Avaya G250 Maintenance Manual page 122

Avaya Communication Manager controlled maintenance
Table 46: CO Trunk Errors with No Tests (continued)
Error
Type
2561
2817
2817
3073
122 Maintenance for the Avaya G250 and Avaya G350 Media Gateways
Aux Error Description and Repair Action
Data
57345 Single polarity ringing current. This error results from
abnormal ringing current, but does not prevent the incoming
call from being accepted. One cause could be that the
reverse current detector associated with the port is failing.
(Will not be detected by any tests.) Another cause could be
that normal current is not detected. In this case, neither
incoming nor outgoing calls can be completed, and the dial
tone test will also fail. The last cause could be that certain
types of noise are present on the CO line during the silent
period of ringing. First check for other errors. If the count for
this error is very high (255), and all tests pass, then either
the reverse current detector is defective or the CO line is
noisy. If the CO line is suspect, make Tip and Ring
observations. If the line is determined to be noisy, refer the
problem to the CO. If the reverse current detector is
defective, ignore this error.
57360 Ground but no ringing. This error occurs on an incoming call
on a ground-start trunk. If ringing is not detected within 5
seconds of the Tip being grounded, the call is still accepted.
If the CO is of the No. 5ESS. switch type, ringing delays of
more than 5 seconds during heavy traffic are fairly common.
Check for other errors.
57393 The loop is opening too slowly after a disconnect. This error
indicates an on-board problem, although the trunk may be
functional. Check for other errors.
57376 No loop current on incoming call. The incoming destination
has already answered and no loop current has been
detected. If this is a hard fault, the dial tone test and all
outgoing calls should also fail. Check for other errors.
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