Maintenance Objects
1850
Issue 5 October 2002
End Loopback/Span Test (#1216)
This test is destructive.
The End Loopback/Span Test terminates an active loopback or span test on a
UDS1 circuit pack. Bit error counting against the received test pattern stream is
terminated and sending of the framed 3-in-24 test pattern is halted. If either the
CPE Loopback Jack or the far-end CSU is looped, the appropriate loopback
deactivate code is sent. If the loopback cannot be deactivated, then the test
returns FAIL, and a MINOR alarm is noted in the alarm log until the loopback is
cleared.
The test is highly destructive and can only be initiated by a system technician
demanded test ds1-loop UUCSS end-loopback/span-test command. Since
only one of these three different long-duration loopback/span tests can be active
at a time, the UDS1-BD circuit pack knows which loopback/span test to terminate.
All trunks or ports on the UDS1 Interface circuit pack must be busied out using the
system technician busyout board command before running this End
Loopback/Span Test.
The list measurements ds1 summary command will display the length of time
the test ran (
Test Duration
field) and number of bit errors detected
(
Loopback/Span Test Bit-Error Count
field).
To restore the trunks or ports on the UDS1 Interface circuit pack to the in-service
state, execute the release board command.
Table 546.
TEST #1216 End Loopback/Span Test
Error
Code
Test
Result
Description/ Recommendation
ABORT
Internal system error
1. Retry the test ds1-loop UUCSS end-loopback/span-test command at
1-minute intervals a maximum of 5 times.
1005
ABORT
End Loopback/Span Test cannot be executed in the current configuration. To
run this test, the TN464F or later suffix DS1 board 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.
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