Cisco 4000 Series Hardware Installation Manual page 40

Hardware Features of Cisco 4000 Series ISRs
Table 1-2 LED Descriptions (Applies to the Cisco 4331 ISR and the Cisco 4321 ISR Routers)
LED Represents
STAT System Status
TEMP Temperature
Status
FAN Fan Status
L Ethernet ports 0
1
and 1
S Speed of Ethernet
ports 0 and 1
SFP EN Port 0, and 1 (for
Cisco 4331 ISR),
and Port 0 for
Cisco 4321 ISR)
Enable
SFP S Status of port 0,
and 1 (for
Cisco 4331 ISR),
and Port 0 for
Cisco 4321 ISR)
SER CON Serial Console
Active
(right)
Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
1-32
Color Description
Solid green System operates normally.
Blinking BIOS/Rommon is booting.
amber
Amber BIOS/Rommon has completed booting, and system
is at Rommon prompt or booting platform software.
Off System is not out of reset or BIOS image is not
loadable.
Solid green All temperature sensors in the system are within
acceptable range.
Amber One or more temperature sensors in the system are
outside the acceptable range.
Off Temperature is not being monitored.
Green All fans are operating.
Amber One fan has stopped working.
Blinking Two or more fans have stopped working, or the fan
Amber tray is removed.
Off Fans are not being monitored.
Green Ethernet cable is present and link is established with
other side.
Off No link.
Green Blink frequency indicates port speed:
Blinking 1 blink - 10-Mbps link speed
•
2 blinks - 100-Mbps link speed
•
3 blinks - 1000-Mbps link speed
•
Off No link or a non-Ethernet 802.3af/t capable device is
plugged in and powered over the PoE.
Green SFP module is detected and recognized.
Amber Initialized with error.
Off Not present.
Green SFP module is detected and recognized.
Amber Initialized with error.
Off Not present.
Off Not present.
Green Active console port is RJ-45.
When this LED is on, the USB CON LED
Note
will be off.
Chapter 1 Overview of Cisco 4000 Series ISRs
Location
Bezel side All models
Bezel side All models
Bezel side All models
I/O side
I/O side
I/O side
I/O side
2
I/O side
Available
On
All models
All models
All models
All models
All models
OL-32185-02