AT&T 3.0 manual Summary

Module Problems

Summary

Console Procedure

PC Procedures

Appropriate Modules

Time Estimate

Busy-Out or Reset

Interrupting the Test Test Failure

Restore

Menu →Maintenance →Slot →Dial the slot no. → Enter →BchLoopback

(F6) →(F2) →Type the slot no. →(F10) →(F4) This test can be run only on MLX modules. Approximately 1.5 minutes.

Before beginning the test, busy-out or reset the module being tested. Both Busy-Out and Reset are in the Slot menu, which you can access by doing the following from the console:

Menu →Maintenance →Slot

See “Busy-Out and Reset,” earlier in this chapter, for additional information.

Interrupt the test by selecting Exit.

If the test fails, record the errors on the repair tag and replace the module.

Restore the module if it successfully completes all module tests and the errors no longer occur. Restore is in the Slot menu, which you can access by doing the following from the console:

Menu →Maintenance →Slot

See “Restore,” earlier in this chapter, for additional information.

To run the B-Channel Loopback Test, follow the steps below.

4-54Control Unit Problems