The APU device requires 3 main connections - cameras, internet and power.
Internet can be provided by connecting the APU to your router over ethernet.
Similarly the APU can be connected to the camera network via ethernet into the NVR.
Once the APU is connected and powered up, users can connect to a hotspot on the APU to choose which cameras to connect to. ONVIF enabled camera will be automatically discovered, and can be accessed by entering the ONVIF profile credentials.