Troubleshooting the dc pem installation – Cisco XR 12404 User Manual
Page 144
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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
and use the following procedure to troubleshoot the PEM
installation.
Figure 5-12
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
INPUT
– 48/60V
35A
66399
INPUT
OK
OUTPUT
FAIL
OUTPUT
OK
INPUT
OK
OUTPUT
FAIL
OUTPUT
OK
3
1
2
4
5
todd.book Page 20 Monday, March 16, 2009 2:47 PM
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