Nortel Meridian 1 Replacement Manual page 137

5 Wait at least 10 seconds, then unhook the locking devices on the CMDU
and gently pull the unit out of the card cage.
You must wait at least 10 seconds before you remove the CMDU from
the card cage. This allows the hard disk to stop.
Installing equipment
1 Insert the replacement CMDU into the vacated slot and hook the locking
devices.
2 Set the power switch on the front of the CMDU to ON (up).
3 If there was a floppy disk in the CMDU you replaced, install the floppy
disk in the replacement CMDU.
4 Software enable and test the CMDU:
LD 137
ENL CMDU x
The system will respond with:
DISK RDUN WILL BE ENABLED, ENTER Y(ES) TO CONFIRM.
Enter:
YES
If this operation fails, enter:
SYNC
TEST SCSI
TEST CMDU x
****
If there is a problem, a CIOD system message is generated.
5 Tag defective equipment with a description of the problem and package
it for return to a repair center.
Replacing equipment
CAUTION
synchronizes the hard disks
check access to the CMDU
check the hard and floppy disk drives
exit LD 137
Page 137 of 362
Hardware replacement