Nortel Meridian 1 Hardware Replacement Manual page 137

24 Follow the appropriate steps below to connect the clock controller
cables:
a. For a QPC471 Clock Controller card, connect the NT8D79 cables
from the primary or secondary reference to the faceplate of the
clock controller card. For Options 81C, connect the NT8D74 cable
from the NT8D36 InterGroup Module to the clock controller card.
b. For QPC775 Clock Controller Cards in Options 81 and 81C,
connect the NT8D74 cable from the junctor board to the faceplate
of the clock controller card. Then connect the NT8D79 cables from
the primary or secondary reference to the faceplate of the clock
controller card.
c. Leave the ENB/DIS switch set to DIS on QPC471 or QPC775
cards.
25 Reinstall the NT5D20 IOP/CMDU, then set the ENB/DIS switch to
ENB.
As the card performs card-level power-up tests, watch the faceplate HEX
display for flashing error codes. See Administration (553-3001-311) for an
explanation of the codes.
26 Set the NORM/MAINT switch on the CP card to MAINT. (This will keep
the system in split mode when the card is reinstalled.)
27 Reinstall the CP card. As the card performs card-level power-up tests,
watch the LCD display and output from the CPSI port for error
messages:
a. Following the "Selftest Complete" message, watch the LCD on the
CP card for the message "IOP in Slot 16."
b. Watch the LCD for the message "Loading Disk OS." As the
system attempts to access the hard disk, watch the LCD for error
messages.
c. Watch for system reload (SYS) and initialization (INI) messages
on the terminal.
28 Seat all CNI cards, but leave the ENB/DIS switches set to DIS.
29 Load LD 135 and check the status of all configured CNI cards:
LD 135
STAT CNI
Replacing equipment
get the status of all configured CNIs
Page 137 of 250
Hardware Replacement