Hello,
now I connected the terabee NEO AS rangefinder to the Arduplane and when connected according to the documentation, the communication did not work.
I had to swap the RX and TX wires with each other.
The correct connection order is (GND)-(TX)-(RX)-(+5V) on the ARDUPILOT UART side.
That’s a classic mistake 
, the serial connection is not crossed.
Lada