Led Indicators - Cisco 4000 Series Hardware Installation Manual

Chapter 1 Overview of Cisco 4000 Series ISRs

LED Indicators

Table 1-1
interface cards and modules.
Note For module LEDs, please refer to the respective module installation guides for each module.
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Table 1-1 LED Descriptions (Applies to Cisco 4461 ISR, Cisco 4451-X ISR, Cisco 4431 ISR, and Cisco 4351 ISR)
LED Represents
STAT System
Status
TEMP Temperature
Status
FAN Fan Status
L Ethernet
ports 0 and 1
(left)
Link
S Speed of
Ethernet
(left)
ports 0 and 1
OL-32185-02
summarizes the LED indicators that are located in the router bezel or chassis, but not on the
Color Description
Solid System operates normally.
green
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 All temperature sensors in the system are within
green 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 has been removed.
Off Fans are not being monitored.
Green Ethernet cable is present and link is established with
other side or PoE power is enabled for this port.
Off No link.
Green Blink frequency indicates port speed:
Blinking 1 blink+ pause - FE or GE port operating at 10
•
Mb/s
2 blinks + pause - FE or GE port operating
•
at100 Mb/s
3 blinks + pause - GE port operating at1000
•
Mb/s
Off No link or a non-Ethernet 802.3af/t capable device
is plugged in and powered over the PoE.
Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
Hardware Features of Cisco 4000 Series ISRs
Location Available On
Bezel side All models
Bezel side All models
Bezel side All models
I/O side All models
I/O side All models
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