Cisco Aironet 1850 Series - Ethernet Port Leds

Message MeaningStatus LEDMessage Type
Configuration recovery in progress
(MODE button pushed for 2 to 3 seconds)
Blinking amberBoot loader warnings
Ethernet failure or image recovery
(MODE button pushed for 20 to 30
seconds)
Red
Image recovery in progress (MODE
button released)
Blinking green
DRAM memory test failureRedBoot loader errors
FLASH file system failureBlinking red and amber
Environment variable failureBlinking red and off
Bad MAC address
Ethernet failure during image recovery
Boot environment failure
No Cisco image file
Boot failure
Software failure; try disconnecting and
reconnecting unit power
RedCisco IOS errors
General warning; insufficient inline
power
Cycling through red, green, amber, and
off
Ethernet Port LEDs
Each Ethernet port has two LEDs for showing Link (Green) and Activity (Amber) statuses. They are integrated on the RJ45 connector.
For a description of the statuses they indicate, see the following table.
1000M Active1000M Link100M Active100M Link10M Active10M LinkLED
OnOnOffOffOffOffLink (Green)
BlinkingOnBlinkingOnBlinkingOnActivity
(Amber)
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