Nt8D1303 Pe Module Card Cage - Nortel Meridian 1 Replacement Manual

Page 202 of 362

NT8D1303 PE Module Card Cage

553-3001-520 Standard 16.00 April 2000
Replacing equipment
To replace a defective backplane in an NT8D13 Peripheral Equipment
Module, you must replace the card cage. Use this procedure to replace the 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 Disable the peripheral equipment (PE) shelf:
LD 32
DISS l s
If a second shelf is assigned to a loop, disable that shelf also:
DISS l s
2 Turn off power to the column or the module power supply and ringing
generator (if equipped):
— 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.
— With DC power, set the switch on the NT6D40 PE Power Supply
and NT6D42 Ringing Generator to OFF (down). Set the circuit
breaker for just this module to OFF (down) in the rear of the
pedestal. (All other modules in the column retain power.)
WARNING
"l s" are the loop and shelf numbers
WARNING