DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1116M/T-DIG (Maintenance/Test Digital Port)
9
Clear Error Counters (#270)
This test is not an actual test in the strict sense of the word. 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.
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). 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.
Digital Port Sanity Test (#565)
This test verifies that the port circuitry involved in the digital trunk testing on the
Maintenance/Test Digital Port is functioning properly. This circuitry is common to
both Maintenance/Test Digital Ports on the Maintenance/Test circuit pack.
Therefore, this test is only run for port 2. The test will abort when run on port 3, as
described in Table 9-444
.
This test operates by connecting the two Maintenance/Test Digital Ports on the
TDM Bus so that they talk and listen to each other. Then four self-tests are
attempted: (a) sending data from port 2 to port 3 in asynchronous mode; (b)
sending data from port 3 to port 2 in asynchronous mode; (c) sending data from
port 2 to port 3 in synchronous mode; and (d) sending data from port 3 to port 2
in synchronous mode. The test passes if all four of these self-tests are
successful. The test will stop as soon as any one of these self-tests fails.
Table 9-443. TEST #270 Clear Error Counters
Error
Code Test Result Description/ Recommendation
Any ABORT This test should never abort.
Any FAIL This test should never fail.
1. Retry the command at 1-minute intervals a maximum of 5 times.
2. If the test continues to fail, escalate the problem.
PASS The message to clear the Maintenance/Test circuit pack’s counter for
Background Maintenance Failures has been sent.
Continued on next page
