Card replacement procedures 4-9
NT6X54
(continued)
in a PCM30 line drawer
(continued)
PCM30 Line Drawer
Maintenance Guide BCS33 and up
Replacing an NT6X54 in a PCM30 line drawer
Step
Action
CAUTION
Loss of service
Service to the lines connected to the PIC that is being
replaced is interrupted. Perform this procedure during a
period of low traffic. Do not perform this procedure on a
drawer handling data calls.
1
Obtain a replacement card. Ensure that the replacement card has the
same product engineering code (PEC), including suffix, as the card being
removed.
At the MAP
2
Busy the drawer that contains the bus interface card (BIC) to be
replaced, by typing
>BSY DRWR drwr_no
and pressing the Enter key.
↵
where
drwr_no
is the number of the LSG to be busied (0 to 19)
Note: The term drawer 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. Both LSGs have to be
busied to replace the bus interface card (BIC).
At the shelf
WARNING
Static electricity damage
Wear a wrist strap connected to the wrist strap grounding
point of a frame supervisory panel (FSP) while handling
circuit cards. This protects the cards against damage
caused by static electricity.
3
Open the line drawer that you busied in step 2.
4
Locate and remove the NT6X54 card.
5
Insert the replacement card using a BIC (6X54) insertion tool with the
apparatus code QTH59A and common product code AO322985 .
-continued-