5-112
Cisco 7600 Series Router Installation Guide
OL-4503-26
Chapter 5 Removal and Replacement Procedures
Removing and Replacing the PEM
Removing and Replacing the PEM
This section describes how to remove and install the PEMs for the Cisco 7603, Cisco 7603-S, and Cisco
7606 routers.
The PEM provides an input power connection on the front of the chassis to connect the site power source
to the power supply. In addition to providing an input power connection, the PEM also has an illuminated
power switch (AC-input only), current protection, surge and EMI suppression, and filtering functions.
The PEM on the left (PEM 1) connects the site power source to power supply 1; the PEM on the right
(PEM 2) connects the site power source to power supply 2. See
Figure 5-105
for the location of the PEM;
see
Figure 5-106
(Cisco 7603 router),
Figure 5-107
(Cisco 7603-S router), and
Figure 5-108
(Cisco 7606
router) for the location of the power supplies.
Figure 5-105
PEM Location
Figure 5-106
Cisco 7603 Router—Power Supply Location
SUPERVISOR2
WS-X6K-SUP2-2GE
ST
AT
U
S
SY
ST
EM
C
O
N
SO
LE
PW
R
M
G
M
T
R
ES
ET
CONSOLE
CONSOLE
PORT
MODE
PCMCIA
EJECT
PORT 1
PORT 2
Switch Load
100%
1%
LI
N
K
LI
N
K
OSM-4OC12 POS-SI
4 PORT OC-12 POS SM IR
ST
AT
U
S
1
1
2
2
3
3
4
4
R
ES
ET
LI
N
K
LI
N
K
LI
N
K
LIN
K
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
AC
TI
VE
TX
R
X
TX
PO
R
T 1
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T
2
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T
3
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T4
R
X
OSM-4OC12 POS-SI
4 PORT OC-12 POS SM IR
ST
AT
U
S
1
1
2
2
3
3
4
4
R
ES
ET
LI
N
K
LI
N
K
LI
N
K
LI
N
K
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
C
AR
R
IE
R
AL
AR
M
AC
TI
VE
TX
R
X
TX
PO
R
T
1
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T
2
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T
3
R
X
AC
TI
VE
TX
R
X
TX
PO
R
T4
R
X
63191
PEM 1
PEM 2
63031
INPUT
OK
FAN
OK
OUTPUT
FAIL
INPUT
OK
FAN
OK
OUTPUT
FAIL
Power supply 2
(redundant)
Power supply 1