Nortel Meridian 1 Hardware Replacement Manual page 207

2 The CP card you are replacing must be in the inactive Core. Check the
status of the NT9D19 Call Processor cards:
LD 135
STAT CPU
If necessary, switch Cores:
SCPU
****
3 Set the NORM/MAINT switch on the NT9D19 Call Processor card to
MAINT on the active Core.
4 Set the ENB/DIS switch on all CNI cards on the inactive Core to DIS.
5 Perform the following three steps on the inactive Core in an
uninterrupted sequence:
a. Press and hold down the MAN RST button on the CP card on the
inactive Core.
b. Set the NORM/MAINT switch to MAINT.
c. Release the MAN RST button.
The system is now in split mode where each Core is functioning independently
and the automatic switchover has been disabled.
Installing equipment
1 Set the NORM/MAINT switch to MAINT on the replacement card.
2 Insert the Install Program diskette which corresponds with the NT9D19
(68040) Call Processor card.
3 Remove the current CP card and put it in a static bag and box.
4 Insert the CP replacement card into its vacated slot and hook the
locking devices.
5 Press the MAN RST button on the replacement CP card.
Replacing equipment
determine which CP card is active
switch Cores
exit LD 135
Page 207 of 250
Hardware Replacement