This is my final setup.
- added heatsink!
- 8-30 to 5v module
(On images there is test antena connected so I don't burn my concentrator)
Raspberry Pi3b+ with mounted concentrator.
Next to it: placeholder for 5v module.
PoE is going from LAN to wires blue(+) and brown (-). I've put 24v 2A on the other side.
Then it goes into 5v downstep converter module which then gives steady 5v to concentrator and PI3b+
Black wire is ground (optional)
Make it happen :)
Have fun ;)