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 loopbac k at the TN464F DS1
board edge and tests DS1 board internal circuitr y.
The test is destructive and c an only be initiated by a system technician
demanded
test ds1-loop UUCSS ds1/csu-loop back-tests
command.
All trunks or ports on the UDS1 Interface c ircuit pack must b e busied out via the
system technician busyout board command before running the BLB Test.
When the BLB Test is initiated, maintenance software sends an app ropriate
message to the TN464F UDS1 Interface circuit pac k to start the test. The board
will set up the BLB loopbac k, transmit a test pattern, and verify that the p attern is
received unaltered through the loop back. If the transmitted and received pattern
is different, the test fails.
When the test is complete, all trunks or por ts on the TN464F UDS1 Interface
circuit pack are restored to the in-service state after the release board c ommand
is entered.
Table 9-696. 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 admini stered 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.
Continued on next page