Nortel Meridian 1 Replacement Manual page 123

5 Replace the trim panels on both sides of the card cage.
6 Install the module power supply in the slot labeled "CE pwr sup" in the
Core/Network card cage. Perform a hardware sanity check:
a Turn on power to the module:
With AC power, set the main circuit breaker to ON (up) in the rear
of the pedestal.
With DC power, set the breaker to ON (up) in the pedestal, then set
the switch to ON (up) on the power supply in the module.
b Check the LED pattern for the card cage you are installing:
-- On the NT5D2103 card cage, the LEDs are on the front side of
the backplane. The LEDs are in two vertical columns, one on
either side of slot 12 (if necessary, remove the CNI card to view
the LEDs). The LEDs on the right side of the slot apply to Core
0 and must be (from the top down) OFF-OFF-OFF-OFF. Those
on the left side apply to Core 1 and must be ON-OFF-OFF-
OFF.
c Shut down power to the module again.
With AC power, set the main breaker for the column to OFF (down).
With DC power, set the switch on the power supply and the pedestal
breaker for the module to OFF (down).
Replacing equipment
Hardware replacement
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