Cisco XR 12406 Installation Manual page 191

Chapter 5 Maintaining the Router
Power off the faulty PEM (item 3 in
Step 1
Figure 5-15
O U T P U T
I N P U T
O K
O K
OU TP UT
OK
5
4
2
1
DC PEM
2 Handle
3
Power On/Off switch
Power off the circuit breaker assigned to the power supply.
Step 2
Remove the power supply from the chassis
Step 3
Warning The power supply weighs approximately 10 lb (4.5 kg). Use two hands to remove
the power supply.
OL-13831-01
DC Power Entry Module Components
M I S W I R
E
IN PU T
MI SW IR
E
OK
4
3
Loosen the captive screw on each ejector lever.
a.
Pivot the levers open to release the power supply from its bay.
b.
c. Slide the power supply out of its bay while supporting it with your other hand.
Figure 5-15).
1
4
Captive screws/release levers
5 Cooling fan
6
AC input/DC output/miswire status indicators
(Figure
Cisco XR 12406 Router Installation Guide
Removing and Replacing a DC PEM
5-16):
5-27