Avaya S8700 Series, Maintenance Manual

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Maintenance-Object Repair Procedures
555-233-143 8-1098 Issue 1 May 2002
MFAT Electronic Power Feed (#56)
The software requests that the EPF be turned on for a given port. The hardware
then attempts to turn on that port’s station power unit. If no current is drawn, the
station is probably not connected. If an overcurrent condition is sensed (too much
current is drawn), a short may exist in the loop, or the voice terminal may be
defective. The test results in a message indicating that either the EPF was turned
on successfully with no problems, or an overcurrent condition exists. This test is
repeated after a 5 second delay. If either test is not successful, the test aborts.
Although this test will never actually return a fail result (except for the internal
system error), an error type 257 entry will be made in the error log when the test
has completed if the overcurrent case is detected by the hardware.
Table 8-451. Test #56 MFAT Electronic Power Feed Test
Error
Code Test
Result
Description / Recommendation
ABORT The test was aborted due to an internal system error on a software request to
the board.
1. Retry the command at 1-minute intervals up to 5 times.
1000 ABORT System resources required to run this test are not available. The port may be
busy with a valid call.
1. Use the display port UUCSSpp command to determine the station
extension of the port. Use the status station command to determine the
service state of the port. If the port is in use, wait until the port is idle
before testing.
2. If the port status is idle, then retry the command at 1-minute intervals up to
5 times.
FAIL The test failed with an internal error while it was attempting to turn on the EPF.
1. Retry the command at 1-minute intervals up to 5 times.
PASS Electronic Power Feed test passed. The message to turn on the power to the
station was successfully sent to the port.
1. Although this test will never actually return a FAIL result except for the
Internal system error described above, it will log an error if the
overcurrent case is detected by the hardware. Check the Error Log for any
entries with Error Type 257 when the test has completed.
2. If Error Type 257 does not appear in the Error Log within 10 seconds after
completion of this test, it is safe to assume that the test sensed no
problems with the power to the station. You can verify that the station is
powered up correctly by executing a self-test on the station, and checking
that every feature button is operating.
3. The appearance of Error Type 257 in the Error Log indicates a station
power problem. Check for a wiring short, a damaged jack, a defective
voice terminal, or an incorrect type of terminal.
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