Cisco XR 12404 User Manual
Page 142
Chapter 5 Maintaining the Router
Removing and Replacing a DC Power Entry Module
5-18
Cisco XR 12404 Router Installation Guide
OL-13830-02
Step 1
Power off the faulty PEM.
Step 2
Power off the circuit breaker assigned to the DC power source.
Step 3
Loosen the three captive screws that secure the PEM to the chassis.
Step 4
Remove the PEM from the chassis using the finger grips to pull it out.
Warning
A DC PEM weighs approximately 11.0 lbs. (4.98 kg.). Use both hands to remove
it from the chassis.
Figure 5-11
DC PEM and PDU Components
Tip
If you plan to return the defective PEM to the factory, repackage it in the shipping
container you received with the replacement PEM.
1
DC PDU
5
On/Off switch
2
DC PEM
6
PDU captive screws
3
PEM captive screws
7
PDU terminal block
4
Status LEDs
INPUT
– 48/60V
35A
66295
INPUT
OK
OUTPUT
FAIL
OUTPUT
OK
5
6
4
3
7
1
2
3
todd.book Page 18 Monday, March 16, 2009 2:47 PM