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Cisco XR 12404 Router Installation Guide
OL-13830-02
Chapter 1 Cisco XR 12404 Router Overview
Power Entry Modules
DC PEMs
Each DC PEM operates from a nominal source DC voltage of -48 to -60 VDC and
requires a dedicated
35-A
mp service.
Figure 1-13
identifies the components of a DC power supply.
Figure 1-13
DC PEM and PDU Components
Input OK
Green
The AC power source is present and operating
within the specified limit.
Output Fail
Amber
Indicates a failure in the PEM.
Table 1-9
AC-Input PEM LED Indicators (continued)
LED Label
Color
Function
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
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