Connect to Qualcomm RB5 AMR
Connect to RB5 AMR using ADB
How to Setup ADB
See here
Connect to RB5 AMR Over ADB
After installing adb, connect a USB type C cable to the rear maintenance port of the AMR and connect it to your host computer.
Then, open your terminal, and run the following:
adb shell
Now you are running a shell inside the RB5’s Ubuntu OS!
Connect RB5 AMR to Access Point
To connect RB5 AMR to an access point, follow the steps Here