Nortel Meridian 1 Replacement Manual page 244

Page 244 of 362
553-3001-520 Standard 16.00 April 2000
Replacing equipment
Removing equipment
1 Software disable the CMA:
a The associated CPU must be inactive. If you need to switch CPUs:
LD 35
SCPU
b All memory cards served by the CMA must be disabled before the
CMA can be disabled. For each memory card:
DIS x
c Disable the CMA:
DIS CMA x
— Set the NORM/MAINT switch to MAINT on the active QPC580
CPU Interface (IF) Card.
2 Set the ENB/DIS switch to DIS on the CMA.
To avoid interrupting service, set ENB/DIS switches to DIS before
disconnecting or connecting cables.
3 Tag and disconnect cables to the card you are removing; disconnect the
top cable first.
4 Unhook the locking devices on the card; pull it out of the card cage.
Installing equipment
1 Set the ENB/DIS switch to DIS on the replacement card.
Note: On an NTND10 card, for 768 K memory connect pins 2 and 3 on
the jumper at J3. For 1 M to 4 M memory connect pins 1 and 2.
2 Insert the replacement card into the vacated slot and hook the locking
devices.
"x" is a two-digit number—the first digit is the
associated CPU card and the second is the
memory card number
"x" is the CMA number—0 or 1
CAUTION