Nt6D64 Core Multi Drive Unit - Nortel Meridian 1 Replacement Manual

Page 136 of 362

NT6D64 Core Multi Drive Unit

553-3001-520 Standard 16.00 April 2000
Replacing equipment
Use this procedure to replace the Core Multi Drive Unit (CMDU). See the
X11 Administration (553-3001-311) for a description of all maintenance
commands, and the X11 System Messages Guide (553-3001-411) for
interpreting system messages.
Module covers are not hinged; do not let go of the cover. Lift the cover
away from the module and set it out of your work area.
Note: If you are replacing a faulty CMDU and an associated IOP with
an NT5D20 IOP/CMDU, refer to "Replacing the NT6D63 IOP and the
NT6D64 CMDU with the NT5D20 IOP/CMDU" on page 74
Removing equipment
1 Software disable the CMDU you are replacing:
LD 137
STAT CMDU x x is the CMDU number (0 or 1)
If the CMDU is not disabled enter:
DIS CMDU x
****
2 If needed, save (datadump) the current data configuration to the known
good CMDU:
LD 43
EDD
****
3 If there is a floppy disk in the CMDU you are replacing, remove the
floppy disk.
4 Set the power switch on the front of the CMDU to OFF (down).
WARNING
exit LD 137
execute datadump
exit LD 43