Cisco 4451 ISR Hardware Installation Manual page 52

Hardware Features of Cisco 4000 Series ISRs
LED Represents
PWR System Power
1. Management Ethernet Link on bezel side on Cisco 4331 ISR.
2. These LEDs are on the bezel side for Cisco 4331 ISR
Table 1-4 LED Descriptions (Applies to the Cisco 4221 ISR Router)
LED Represents
STAT System Status
TEMP Temperature
Status
FAN Fan Status
L Ethernet ports 0
1
and 1
Hardware Installation Guide for the Cisco 4000 Series Integrated Services Router
1-32
Color Description
Green System power is on and system functions correctly. Bezel side All models
Green System power is in the process of shutting down.
blinking
Amber System power is up, but low level initialization has
failed.
Amber System power is up, but the system has failed to
blinking: come out of reset.
Off System power is off.
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.
Chapter 1 Overview of Cisco 4000 Series ISRs
Location
Location
Bezel side All models
Bezel side All models
Bezel side All models
I/O side
Available
On
Available
On
All models
OL-32185-02