The state of the IMT bus being tested must be OOS-MT-DSBLD (out of service maintenance disabled) before the tst-imt command can be entered for a Fault Isolation test.
Recovery
Display the state of the IMT buses. Enter the rept-stat-imt command.
The state of the IMT bus is shown in the PST field of the rept-stat-imt command output.
If the state of one of the IMT buses is OOS-MT-DSBLD, re-enter the tst-imt command, specifying the IMT bus that is OOS-MT-DSBLD.
If the state of both IMT buses is not OOS-MT-DSBLD, place the IMT bus out of service. Refer to the Maintenance Guide for assistance.
Re-enter the tst-imt command that generated this error message, specifying the OOS-MT-DSBLD IMT bus.