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Maintenance Object Repair Procedures
555-233-123 10-1118 Issue 4 May 2002
e. The circuit pack detected an Angel on-board hardware failure. The
reported aux data values correspond to the following detected errors:
4352 - External RAM error
4253 - Internal RAM error
4355 - ROM Checksum error
4357 - Instruction set error
Reset the circuit pack by using busyout board PCSS, reset board PCSS,
and release board PCSS. When reset, the circuit pack executes a set of
tests to detect the presence of any of the above faults. The detection of
one these errors during initialization causes the circuit pack to lock up and
appear insane to the system. See the repair procedures in note b for Error
Type 1.
f. This MMI circuit pack reported a loss of MMI synchronization. Refer to Test
(#1123) for repair procedures.
g. A failure of the time slot interchanger has been detected. Reset the circuit
pack using busyout board PCSS, reset board PCSS, and release board
PCSS. If the reset passes, then the on-board circuitry is healthy. Retire the
alarm using test board PCSS long clear followed by release board
PCSS.
h. The circuit pack is hyperactive; that is, it is flooding the switch with
messages sent over the control channel. The circuit pack is taken out of
service when a threshold number of these errors is reported to the switch.
Clear the alarm using the following commands: busyout board PCSS,
reset board PCSS, test board PCSS long clear, release board PCSS. If
the error recurs within 10 minutes, replace the circuit pack.
i. The TSI Cross Talk Test (#6) failed. See the description of this test and
follow the repair procedures.
j. The TSI Looparound Test (#1108) failed. See the description of this test
and follow the repair procedures.