Avaya Media Gateway G350, Maintenance Manual

Page: 103 / 332

Avaya Communication Manager controlled maintenance
CO-TRK (Analog CO Trunk)
Maintenance of the Avaya G350 Media Gateway 103
June 2004
FAIL Failure to detect ground or faulty ground detected on Ring lead. Display the
hardware errors for this trunk, to determine if the fault was on- or-off board.
Look for Error Type 1025 or 1281 (if both appear in the Hardware Error
Log, pick the most recent error). Error Type 1025 indicates a faulty ground
detected on Ring lead (an off-board fault) and Error Type 1281 indicates
failure to detect (internally generated) ground (an on-board fault).
Faulty ground detected on Ring lead (Error Type 1025):
Repeat test. If test passes, ignore the original failure. If test aborts, follow
the recommended procedures.
Repeat test with CO line removed.
If test fails, replace the Media Module.
If test passes, refer problem to CO.
Failure to detect ground (Error Type 1281):
Run the long test sequence. If the CO Demand Diagnostic Test fails, the
Dial Tone Test (#0) fails with Error Code 2002, AND Error Type 3329 or
3585 appears in the Hardware Error Log (with the same last occurred time
as Error Type 1281 and 1537), replace the Media Module.
Repeat test with CO line removed.
If test fails, replace the Media Module.
If test passes, the CO may be drawing too much current. Refer problem to
CO.
PASS This test verifies that the port is able to apply ground for outgoing calls and
detect ground for incoming calls; however, it does not provide information
on whether a CO line is actually connected. User-reported troubles on this
port should be investigated by using other port tests and by examining trunk
or external wiring.
Any NO
BOARD The test could not relate the internal ID to the port (no board).
Check to ensure that the board translations are correct. Translate the board,
if necessary.
Use the
busyout board
command.
Use the reset board command.
Use the
release busy board
command.
Use the test board command. This should re-establish the linkage
between the internal ID and the port.
Table 50: TEST #3 CO Demand Diagnostic Test 2 of 2
Error
Code Test
Result
Description/ Recommendation
2 of 2