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