Besides the IP PoE cameras that normally connect to this NVR I want to add a WiFi doorbell camera to the system (I can't run a CAT 6 cable to the front door). Is that possible? The manual says that the NVR will connect to network cameras but the PoE needs to be turned-off. Can you turn off PoE to individual RJ-45 inputs, so that you can still have IP PoE cameras on the other inputs? If so, would I just connect that RJ-45 input to a network switch?