Lucent Technologies MERLIN LEGEND Release 6.1 Maintenance And Troubleshooting Manual page 214

MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting 555-661-140
100D Module Problems
DTE LOOPBACK
(ESF T1 CSU)
LINE LOOPBACK
(ACCULINK 3150 CSU)
Busy-Out or Reset
Interrupting the Test
Test Failure
Restore
For the ESF T1 CSU only, flip the DTE LOOPBACK
switch on the front panel to the up position to
activate the loopback. Details are provided below.
For the ACCULINK 3150 only, select front panel
Line Loopback command. Details are provided
below.
Prior to beginning the test, busy-out the 100D
module. Both
menu, which you can access by doing the
following from the console:
Menu
See ''Busy-Out and Reset'' on page 4-38
additional information.
You can interrupt the test by selecting
If the test fails, record the errors on the repair tag
and replace the module.
If the 100D module successfully completes the
CSU Loopback Test, restore the module.
is in the Slot menu, which you can access by doing
the following from the console:
Menu
See ''Restore'' on page 4-45
information.
August 1998
Page 4-102
and are in the Slot
.
for
.
for additional
Issue 1
.