Power Unit Installation Modifications
10-4 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
Power Unit Installation
This section describes the procedures for installing the power unit.

Inserting the

Power Unit 1. Make sure the power switch of the power unit that is inserted is turn ed off.
2. Remove the front cover from the front of the main unit. Refer to "Removing
the Front Cover" on page 10-15.
Figure 10-5: Removing the Front Cover
3. Insert the power unit into the power unit slot. As the power unit can be made
redundant, there are two slots, left and right. When using only one power unit,
insert the power unit into the slot #0 that is on the left-h a nd side facing the
main unit. When inserting the power unit, make sure you sec u rely hold the
power unit with both hands (as shown in Figure 10-6)and insert it all the way
in until it is secure.