Nt8D06, Nt8D21, Nt8D29 Power Supply Ac - Nortel Meridian 1 Hardware Replacement Manual

NT8D06, NT8D21, NT8D29 Power Supply AC

Installing equipment
1 Set the ENB/DIS switch to DIS on the replacement card.
Note: On a replacement QPC414, set jumpers the same as on the
card you removed. If there is a vintage change, be sure to check Circuit
Card: Installation and Testing (553-3001-211) for any differences.
2 Insert the replacement card into the vacated slot and hook the locking
devices.
3 Connect cables to the replacement card.
4 Set the ENB/DIS switch to ENB on the replacement card.
5 Software enable each loop on the card:
ENLL loop
a. When the process is complete, you will receive a system
response.
b. The card is tested automatically when all loops are enabled.
c. If there is a problem, an NWS system message is generated and
the red LED on the faceplate of the card will flash (on the NT8D04)
or be steadily lit (on the QPC414).
d. If there is no problem, exit LD 32:
****
6 Tag defective equipment with a description of the problem and
package it for return to a repair center.
Use this procedure to replace AC power supplies:
• NT8D06 PE Power Supply AC
• NT8D21 Ringing Generator AC
• NT8D29 CE Power Supply AC
DANGER
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.
Replacing equipment
Hardware Replacement
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