Nortel Meridian 1 Replacement Manual page 152

Page 152 of 362
Figure 13
Dual circuit breaker and associated module power supplies
PE Module
Module
power supply
MPDU
PE Pwr Sup
553-3001-520 Standard 16.00 April 2000
Replacing equipment
IPE
Ringing
generator
0 1
Rng Gen
Installing equipment
1 Insert the replacement power supply into the vacated slot and hook the
locking devices.
Note 1: If there is a switch on the power supply, set the switch to OFF
(down) before you insert the power supply.
Note 2: On a replacement NT8D21, set option strapping the same as on
the one you removed. If there is a vintage change, be sure to check
Circuit Card: Installation and Testing (553-3001-211) for any
differences.
2 Turn on power to the module power supply. The green LED on the power
supply should light and stay lit:
— If there is an MPDU, set the circuit breaker(s) to ON (up).
— If there is no MPDU, set the power supply switch to ON (up).
2 3 4 5 6 7 Cont 8 9 10 11 12 13 14 15
Intelligent
Superloop
Peripheral Equipment Shelf
553-5376