AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 44

Maintenance Strategy
If a software installation or upgrade is taking place, a blinking
character is displayed to indicate the status of the procedure. See
"Forced Installation of System Software" in Chapter 4 for more
information.
The status display indicates an alarm (on an MLX-20L console or a PC
running SPM), and can be viewed on the Error screen.
A supplemental alert, bell, chime, or strobe, if installed, is activated.
If an LED is programmed to indicate the alarm, the LED stays lit until the error
is cleared.
When the system indicates an alarm, check the permanent error log screen.
Clearing Alarms
The system clears alarms automatically when the error condition no longer
exists.
To clear an alarm manually, select Drop on the MLX-20L console or A+P
on a PC while viewing the error. See "Error Logs" in Chapter 2 for more
information.
System Restarts
Depending on the severity and duration of a problem, you may need to restart
the system manually. Some errors cause the system to restart automatically.
Every restart causes an error log entry, and each type of restart has its own
error code. A cold start (Restart) or frigid start (System Erase) also causes a
or to appear on the error code/status display on the processor module.
There are three types of system restarts, all of which occur automatically:
Warm start (you cannot select this from the Maintenance menu)
Cold start (select
Frigid start (select
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Introduction
to do this manually)
to do this manually)