
5
Cisco 3660 Modular Access Router with AIM-VPN/BP Security Policy
78-13698-01
Cisco 3660 Modular Access Routers
Figure 3 Rear Panel LEDs
Figure 4 shows the front panel LEDs, which provide overall status of the router's operation. The front
panel displays whether or not the router is booted, if the redundant power is (successfully) attached and
operational, and overall activity/link status.
EN
ETH 0
ETH 3
ETHER
NET
4E
ETH 2
ETH 1
1
2
3
A
C
T
L
I
N
K
0
VOICE
2V
V0
V1
EN
EN
H
IGH SPEED SERIAL
1HSSI
H
S
S
I 0
TD
TC
RD
RC
LB/CN
C
N
/L
P
R
X
C
S
ERIAL 3
SERIAL 2
S
ERIAL 1
SERIAL 0
R
X
D
T
X
C
T
X
D
C
N
/L
P
R
X
C
R
X
D
T
X
C
T
X
D
C
N
/L
P
R
X
C
R
X
D
T
X
C
T
X
D
C
N
/L
P
R
X
C
R
X
D
T
X
C
T
X
D
EN
S
E
R
IA
L
4
T
S
EE
M
AN
U
AL BE
FOR
E INS
TA
LLAT
IO
N
V
IC
FX
S
IN USE
IN USE
1
0
17345
FDX
LINK
100Mbps
FDX
LINK
100Mbps
1
0
Power
supply LED
VCC OK
SYSTEM
Table 1 Rear Panel LEDs and Descriptions
LED Indication Description
Power Green Operating voltages on the mainboard are within acceptable ranges
Off An error condition is detected in the operating voltages
System Solid Green Power is supplied to the router and the router is operational.
Off The router is not powered on.
Blinking Green Router is running the ROM monitor. No errors detected.
Amber Router is receiving power but not functioning properly. Possible
power-on self-test error or over-temperature condition detected.
Alternating
Green/Amber
Power-on self-test detected. The router is attempting to reload the
ROM monitor.
LINK Green An Ethernet link has been established
Off No Ethernet link established
FDX Green The interface is transmitting data in full-duplex mode
Off When off, the interface is transmitting data in half-duplex mode
100 Mbps Green The speed of the interface is 100 Mbps
Off The speed of the interface is 10 Mbps or no link is established
PCMCIA 0, 1 Green Indicates data activity on the respective PCMCIA slot.
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