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Replacing the Cisco 3660 Router Backplane 9
Detaching Components from the Backplane
Figure 2 Removing the Cisco 3660 Mainboard Tray
Caution
The mainboard is an ESD-sensitive component. To avoid damage, observe all ESD
precautions.
Detaching the Chassis Shield
In order to access the network modules, loosen the two captive screws securing the chassis shield to
the router. (See Figure 3.)
VCC OK
SYSTEM
FDX
LINK
100Mbps
FDX
1
0
LINK
100Mbps
ETH 0
ETH 3
E
TH
E
R
N
ET
4E
ETH 2
ETH 1
123
A
C
T
L
IN
K
0
CN/LP
RXC
SERIAL 3
SERIAL 2
SERIAL 1
SERIAL 0
RXDTXC
TXD
CN/LPRXC
RXD
TXC
TXD
CN/LP
RXC
RXD
TXC
TXD
CN/LPRXC
RXD
TXC
TXD
EN
S
E
R
IA
L
4
T
VOICE
2V
V0
V1
EN
HIGH SPEED SERIAL
1HSSI
H
TD
TC
RD
RC
LB/CN
S
E
E
M
A
N
U
A
L
B
E
F
O
R
E
IN
S
T
A
L
L
A
T
IO
N
V
IC
F
X
S
IN USE
IN USE
1
0
17335
Tray levers
1
22
3