Router Installation Guide

Chapter 5 Maintaining the Router
Removing and Replacing a DC Power Entry Module
5-20
Cisco XR 12404 Router Installation Guide
OL-13830-02
Troubleshooting the DC PEM Installation
Refer to Figure 5-11 and use the following procedure to troubleshoot the PEM
installation.
Figure 5-11 DC PEM Status LEDs
1 DC PDU
2 DC PEM
3 Input OK
(Green)
On DC PEM is operating normally in a power-on
condition
4 Output OK
(Green)
On DC power source is present and within
specified limit
5 Output Fail
(Amber)
On PEM is operating in a fault condition and
shutdown has occurred
I
N
P
U
T
–
4
8
/
6
0
V
3
5
A
66399
IN
P
U
T
O
K
O
U
T
P
U
T
F
A
IL
O
U
T
P
U
T
O
K
INPUT
OK
OUTPUT
FAIL
OUTPUT
OK
3
1 2
4 5
todd.book Page 20 Tuesday, July 24, 2007 3:54 PM