AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 188

100D Module Problems
To run the CSU Loopback Test, follow the steps below.
Console Display/Instructions
1 From the Maintenance menu, select the Slot option.
_
2 Specify the 2-digit slot number ( nn = 00 to 17).
3 Select the CSU Loopback Test
_
4–98
Control Unit Problems
Additional Information
Dial or type [ nn ], then select
_
. .
xx = slot number entered in Step 2
and
displayed only for the 100D module.
PC
2
.
0
are
4