AT&T MERLIN LEGEND Communications System Release 2.0 Maintenance And Troubleshooting Manual page 127

Control Unit Problems
Step
5
Demand Test Slot xx:
Board aaaaaaaaaaaaaaaaaa
Internal Loopback:
Test Once
Repetitive
Exit
6
Demand Test Slot xx:
Board aaaaaaaaaaaaaaaaaa
Internal Loopback Test
In Progress
Exit
7
Demand Test Slot xx:
Board aaaaaaaaaaaaaaaaaa
Internal Loopback Test
Successfully Completed
Exit
Display
Instructions
Select Test Once to run the Internal
Loopback Test only once.
Select Repetitive to run the Internal
Loopback Test repeatedly.
This screen appears while the test is
running. At the same time, if the module
has a green LED, it will flash.
If you are running the repetitive test, this
screen remains until the test fails, To
interrupt repetitive testing, select
This screen appears only if you selected
Exit.
Module Problems
4-37