DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1880UDS1-BD (UDS1 Interface Circuit Pack)
9
DS1 Board Loopback Test (#1209)
This test is destructive.
The DS1 Board Loopback (BLB) Test causes a loopback at the TN464F DS1
board edge and tests DS1 board internal circuitry.
The test is destructive and can only be initiated by a system technician
demanded
test ds1-loop UUCSS ds1/csu-loopback-tests
command.
All trunks or ports on the UDS1 Interface circuit pack must be busied out via the
system technician
busyout board
command before running the BLB Test.
When the BLB Test is initiated, maintenance software sends an appropriate
message to the TN464F UDS1 Interface circuit pack to start the test. The board
will set up the BLB loopback, transmit a test pattern, and verify 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 TN464F UDS1 Interface
circuit pack are restored to the in-service state after the
release board
command
is entered.
Table 9-696. TEST #1209 DS1 Board Loopback Test
Error
Code
Tes t
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.
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