Nt7D15 System Monitor - Nortel Meridian 1 Replacement Manual

NT7D15 System Monitor

3 Tag defective equipment with a description of the problem and package
it for return to a repair center.
The NT7D15 System Monitor, used only in Option 21A, attaches to the rear
of the backplane in the NT8D11 CE/PE Module. Use this procedure to
replace the system monitor.
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 Remove the rear cover on the module.
2 Remove the I/O safety panel by turning the screws on each side. Set the
cover aside.
3 Tag and disconnect cables to the system monitor in the following order:
disconnect the cable to connector P3, then P2, then P1.
If you do not disconnect cables in the order given, the system will shut
down.
4 Pull the card out of the connector on the backplane.
Replacing equipment
WARNING
CAUTION
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Hardware replacement