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Table 1
LED
System (SYS)
Alarm (ALM)
78-18998-01
LED Indicators (continued)
Description
During system power-up:
SYS blinks amber.
•
ALM is continuous amber.
•
During system boot:
SYS blinks green.
•
ALM is continuous amber.
•
After bootup:
•
SYS is continuous green.
•
ALM is off.
During controller image upgrade:
SYS is continuous green.
•
ALM blinks green.
•
System crash:
SYS is continuous amber.
•
ALM is off.
•
Firmware Error:
SYS is continuous amber.
•
ALM is continuous amber.
•
Power cycle the controller to clear the firmware error.
Note
Internal Voltage Error:
•
SYS blinks amber.
ALM is continuous amber.
•
Temperature Error:
SYS is off.
•
ALM blinks amber.
•
Check for blocked air vents and fans on the controller, and make
Note
sure that ambient room temperature is below 104° F (40° C).
Cisco 5500 Series Wireless Controller Installation Guide
Controller Overview
7