Alarm clearing procedures 3-5
PM LCM
(continued)
Minor
(continued)
PCM30 Line Drawer
Maintenance Guide BCS33 and up
Clearing a PM LCM Minor alarm
Step
Action
At the MAP
1
Access the PM level of the MAP by typing
>PM
and pressing the Enter key.
↵
2
Display all the in-service-trouble LCMs by typing
>DISP ISTB LCM
and pressing the Enter key.
↵
3
If more than one in-service-trouble LCM is displayed, select one on
which to work.
4
Post the selected LCM by typing
>POST LCM frame_no pair_no
and pressing the Enter key.
↵
where
frame_no
is the number of the frame that contains the LCM (0 to 511)
pair_no
is the number of the LCM in the frame (0 or 1)
5
From the MAP display, determine the status of the drawers.
Note: The term drawer in this procedure refers to a line subgroup (LSG). Two LSGs make
up one physical drawer. For example, 0 and 1 are two LSGs in one physical drawer.
Maintenance functions can be executed on only one LSG at a time.
If a drawer is
Do
system busy (S)
manual busy (M)
step 6
step 7
-continued-
