Nortel Meridian 1 Replacement Manual page 240

Page 240 of 362
553-3001-520 Standard 16.00 April 2000
Replacing equipment
Removing equipment
1 To replace the ROM card you must disable and remove the function card.
Disable the function card by disabling the associated QPC580 CPU
Interface (IF) Card.
a This CPU must be inactive. If you need to switch CPUs:
LD 35
SCPU
b Set the NORM/MAINT switch to MAINT on the active interface
card. (This keeps the system from switching to the inactive CPU.)
c Set the ENB/DIS switch to DIS on the inactive interface card.
2 Disconnect the cable between the function and interface cards.
3 Unhook the locking devices on the function card; pull it out of the card
cage.
4 Gently unplug the ROM card from the connectors on the component side
of the function card.
When you remove the ROM card, do not touch other components on
the function card.
Installing equipment
1 Plug the replacement ROM card into the connectors on the component
side of the function card.
2 Reinsert the function card and hook the locking devices.
3 Connect the cable between the function and interface cards.
4 Enable the function card by enabling the interface card.
a Set the ENB/DIS switch to ENB on the inactive interface card.
b Set the NORM/MAINT switch to NORM on both interface cards.
CAUTION