Avaya DEFINITY Server CSI Maintenance Manual page 1120

In addition, the DS1 circuit pack hardware applies a DC current while the test is
running in order to detect any broken wires which may not be detected by the
loopback pattern.
When the test is complete, all trunks or ports on the TN767E DS1 Interface circuit
pack are restored to the in-service state after the release board command is
entered.
Table 237. TEST #1210 CSU Equipment Loopback Test
Error Test
Code Result
ABORT Internal system error
1005 ABORT CSU Equipment Loopback Test cannot be executed in the current
configuration. To run this test, the Near-End CSU Type field on the DS1
circuit pack administration form must be set to integrated and the "Bit Rate"
field must be set to "1.544" (24-channel operation).
1015 ABORT Ports on the DS1 Interface circuit pack have not been busied out to
out-of-service.
1039 ABORT The DS1 Interface circuit pack is providing timing for the system. Executing
this test could cause major system disruption.
If the DS1 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:
1120
Issue 5 October 2002
Description/ Recommendation
1. Retry test ds1-loop UUCSS ds1/csu-loopback-tests at 1-minute
intervals a maximum of 5 times.
1. Use the change ds1 UUCSS command to set the Near-End CSU Type
field on the DS1 circuit pack administration form to integrated, and/or
change the "Bit Rate" field to "1.544" if the board is to be used in the
24-channel configuration.
2. Retry test ds1-loop UUCSS ds1/csu-loopback-tests.
1. Enter the busyout board UUCSS command to put all trunks or ports of
the DS1 Interface circuit pack into the out-of-service state.
2. Retry the command.
1. Issue the disable synchronization-switch command.
2. Next, issue the set synchronization UUCSS command.
3. Lastly, issue the enable synchronization-switch command.
Continued on next page
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