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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-1597UDS1-BD (UDS1 Interface Circuit Pack)
10
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 PCSS 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 10-469. TEST #1209 DS1 Board Loopback Test
Error
Code
Test
Result Description/ Recommendation
ABORT Internal System Error
1. Retry the
test ds1-loop PCSS
ds1/csu-loopback-tests
command at 1-minute
intervals a maximum of 5 times.
2. If the test continues to abort, escalate the problem.
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 PCSS command to put all
trunks or ports of the UDS1 Interface circuit pack
into the out-of-service state.
2. Retry the command.
3. If the test continues to abort, escalate the problem.
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