Ubiquiti Networks airFibe5X - Manual (Page 7)

Additional LEDs
LED State Status
LINK
Off RF Off
Short Flash* Syncing
Normal Flash* Beaconing
Long Flash* Registering
On Operational
GPS
Off No GPS Synchronization
Normal Flash* Non-Operational (Weak Signal)
On Operational (Strong Signal)
MGMT
Off No Ethernet Link
On Ethernet Link Established
Random Flashing Ethernet Activity
DATA
Off No Ethernet Link
On Ethernet Link Established
Random Flashing Ethernet Activity
Off No Power
On Powered On
* Short Flash (1:3 on/off cycle)
Normal Flash (1:1 on/off cycle)
Long Flash (3:1 on/off cycle)