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Cisco 10008 Router Hardware Installation Guide
OL-0659-13
Chapter 5 Maintaining the Cisco 10008 Router
Removing and Replacing Field-Replaceable Units
Replacing a DC PEM
Use the following procedure to replace a DC PEM:
Figure 5-21 Setting DC Power Switch to the Off Position
Step 1 Remove the front cover if necessary (see Front Cover Procedures, page 5-4).
Step 2 Set the power switch to the off (0) position. If you have redundant PEMs, set only the power switch of
the PEM you are replacing to the off (0) position (the example in Figure 5-21 shows the top PEM in the
off position).
Caution Do not power off both of the DC PEMs in a redundant system, or the system shuts and down all data
traffic stops. Only power off the DC PEM you are replacing.
30019
1
3
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0
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PORT2
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PORT4
PORT5
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T1
PORT2
PORT3
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PORT5
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6XCT3–DS0
0
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0
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RRIER
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6XCT3–DS0
0
5
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1
PERFORMANCE ROUTING ENGINE
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PERFORMANCE ROUTING ENGINE
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CARRIER
ALARM
LOOP
FAIL
6XCT3–DS0
0
5
4
3
2
1
C
I
S
C
O
1
0
0
0
0
CARRIER
ALA
RM
LOOP
F
AIL
6XCT3–DS0
0
5
4
3
2
1
C
I
S
C
O
1
0
0
0
0
CARRIER
ALAR
M
LOOP
F
AIL
6XCT3–DS0
0
5
4
3
2
1
C
I
S
C
O
1
0
0
0
0
CAR
RIER
TX
RX
FAIL
OC–12/STM–4 POS SM–IR
F
A
N
S
O
K
F
AN
F
A
IL
U
R
E
M
U
L
T
I-
F
A
N
F
A
IL
U
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E
When hot swapping this fan tray,
removal and replacement must
be done in under two minutes or
system shutdown will occur.
CAUTION
POWER
FAULT
MISWIRE