Ubiquiti PowerBeam M PBE-M2-400 Quick Start Manual page 4

Release Button
the Release button; it should be fully engaged in the Release
Button Slot of the Rear Housing. This ensures that the Antenna
Feed is locked into place. If you need to remove the Antenna
Feed, you must depress the Release button first.
LEDs
Signal
strength threshold values for each LED on the
Advanced tab under Signal LED Thresholds. The
default values are shown below:
Ethernet
when an active Ethernet connection is made and
flash when there is activity.
Power
device is connected to a power source.
After you assemble the PowerBeam, check
In airOS, you can modify the wireless signal
LED will light green when the wireless signal
strength is above -65 dBm.
LED will light green when the wireless signal
strength is above -73 dBm.
LED will light amber when the wireless signal
strength is above -80 dBm.
LED will light red when the wireless signal
strength is above -94 dBm.
The Ethernet LED will light steady green
The Power LED will light green when the