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M/T-ANL (Maintenance/Test Analog Port)
Issue 4 May 2002 10-1141 555-233-123
Clear Error Counters (#270)
The ports on the Maintenance/Test circuit pack continually run self-tests,
whenever the port is idle. The Angel uses a counter so that the Background
Maintenance Failure message is only sent uplink once (this keeps a failed
port/circuit pack from flooding the SPE with a string of messages). Many circuit
packs have counters in the Angel firmware. These counters are used so that
Control Channel Message Set (CCMS) messages are not continuously sent
uplink. Using this method, the message will be sent once, when the counter
reaches some preset threshold, and then not sent again until the counter is
cleared. This test is used to clear the counter, so that if the port continues to fail
during or after SPE-demanded testing, the Angel will send a message to indicate
that fact.
This test is only used to send a message to the Angel on the Maintenance/Test
Circuit Pack. Therefore, this test should never abort or fail.
Hook State Inquiry (#566)
This test ensures that the Maintenance/Test Analog Port maintenance software
and call processing agree on the on-/off-hook status of the Maintenance/Test
Analog Port.
Table 10-430. TEST #270 Clear Error Counters
Error
Code
Test Result Description/Recommendation
PASS The message to clear the Maintenance/Test circuit
pack’s counter for Background Maintenance Failures
has been sent.