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Maintenance Object Repair Procedures
555-233-123 10-1904 Issue 4 May 2002
When the BLB Test is initiated, maintenance software sends an appropriate
message to the UDS1 Interface circuit pack to start the test. The board sets up the
BLB loopback, transmits a test pattern, and verifies that the pattern is received
unaltered through the loopback. If the transmitted and received pattern is
different, the test fails.
When the test is complete, all trunks or ports on the TN464GP/TN2464BPTN
UDS1 Interface circuit pack are restored to the in-service state after release
board is entered.
Table 10-682. TEST #1209 DS1 Board Loopback Test
Error
Code Test
Result Description/Recommendation
ABORT Internal system error
1. Retry the test ds1-loop UUCSS ds1/csu-loopback-tests
command at 1-minute intervals a maximum of 5 times.
1005 ABORT DS1 Board Loopback Test cannot be executed in the current
configuration. To run this, the TN464F or later suffix UDS1 must
be administered for 24-channel operation. The “Bit Rate” field on
the DS1 circuit pack administration form must be set to “1.544” for
24-channel operation.
1015 ABORT Ports on the UDS1 Interface circuit pack have not been busied
out to out-of-service.
1. Enter the busyout board UUCSS command to put all trunks
or ports of the UDS1 Interface circuit pack into the
out-of-service state.
2. Retry the command.
1039 ABORT The UDS1 Interface circuit pack is providing timing for the
system. Executing this test could cause major system disruption.
If the UDS1 Interface circuit pack needs to be tested, set the
synchronization reference to another DS1 Interface circuit pack
or to the Tone-Clock circuit pack via the following command
sequence:
1. Issue the disable synchronization-switch command.
2. Next, issue the set synchronization UUCSS command.
3. Lastly, issue the enable synchronization-switch command.
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