AT&T 3.0 manual Interpreting Test Results, Channel Loopback Test

Module Problems

Interpreting Test Results

If the test completes successfully, the module’s board controller is functioning properly. Continue with the next module test or restore the module if you are finished testing. If the test fails, find the error message in Table 4-4 and proceed as indicated.

Table 4-4. Board Controller Test Errors

Error Messages	Corrective Action
Slot is not busied-out	Exit the test, busy-out the slot, and try again.
Slot empty or not valid	Exit the test and try again; be sure to type the correct
	slot number. Do not indicate an empty slot or the
	processor (00).
FMWR not in Standby Mode	Exit the test and try again; if this error persists, record
	the errors on the repair tag and replace the module
	being tested.
Test running too long	Exit the test and try again; if this error persists, record
	the errors on the repair tag and replace the module
	being tested.
Not in TEST/STANDBY mode	Exit the test and try again; if this error persists, record
	the errors on the repair tag and replace the module
	being tested.
Any other error	Record the errors on the repair tag and replace the
	module.

Restoring the Module

When you are finished running module tests, be sure to restore the module. See “Restore,” earlier in this chapter.

B-Channel Loopback Test

This test verifies that specific communication paths on the MLX module are operational. If you have not read “Module Test Process” above, do so.

Control Unit Problems 4-53