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A-5
Cisco 3600 Series Routers Hardware Installation Guide
OL-2056-05
Appendix A Troubleshooting
Reading Front-Panel LEDs
Figure A-2 Cisco 3640 Router Front-Panel LEDs
Figure A-3 Cisco 3660 Router Front Panel LEDs
Note The Cisco 3660 router has system LEDs on the front and rear panels. Both system LEDs function as
described in Table A-1.
Note In this guide, references to Cisco 3660 routers include both Cisco 3661 and Cisco 3662 routers.
H7042
0
ACTIVE
READY
123
PCMCIA
1
0
SYSTEM
CON
AUX
RPS
Network activity LEDsSystem and
RPS LEDs
PCMCIA
LEDs
R
E
A
D
Y
F
E
A
C
T
IV
E
1
0
/0
P
S
2
0
/1
2
3
4
5
6
P
S
1
S
Y
S
T
E
M
17903
READY
FE
ACTIVE
6
0/0
0/1
1
2
3
4
5
SYSTEM PS1 PS2