Nt8D1103 Ce/Pe Module Card Cage - Nortel Meridian 1 Replacement Manual

NT8D1103 CE/PE Module Card Cage

3 Reinsert the power supply and hook the locking devices.
4 Position the metal plate in front of the MPDU and install the mounting
screw in each corner.
5 Connect the power plugs to the rear of the MPDU.
6 Position the I/O safety panel. Tighten the screws.
7 Set the circuit breaker(s) on the replacement MPDU to ON (up).
8 Reset the main circuit breaker in the column pedestal to ON (up) and
replace the pedestal grill.
9 Tag defective equipment with a description of the problem and package
it for return to a repair center.
To replace a defective backplane in an NT8D11 CE/PE Module, you must
replace the card cage. Use this procedure to replace the CE/PE Module card
cage.
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.
Removing equipment
1 Unseat disks in the Floppy Disk Unit (FDU) or Small Systems Multi
Disk Unit (SMDU) from the disk drives.
2 Turn off power to the column or the module power supply:
— With AC power, set the main circuit breaker for the column to OFF
(down) in the rear of the pedestal.
Due to hazardous voltage in AC-powered systems, power to the entire
column must be shut down. This shuts down all functions in the
column.
Replacing equipment
WARNING
WARNING
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Hardware replacement