Vol. VI-B-52 Alcatel-Lucent
PMC OHT Access Failure
No communications with the overhead processor. This is a critical alarm.
Probable Cause
Equipment malfunction.
Recommended Actions
Withdraw the DAC 155oM, pause, then reinsert.
Replace the DAC 155oM.
Bus Trib z Loop-Back Enabled
Loop-back has been applied to tributary z. This is a warning alarm.
Probable Cause
A loopback has been established on a trib using commands in the CT
System/Controls screen.
Recommended Actions
To remove the alarm, deselect the loopback.
Ring Manual Lock
Ring manual lock is active. This is a warning alarm.
Probable Cause
A ring lock has been established using commands in the CT
System/Controls screen.
Recommended Actions
To remove the alarm, deselect the lock(s).
RDI In
Remote degrade/defect indication in this section. This is a major alarm.
Probable Cause
Problem with the transmitted signal.
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