Applies to: Reoilink PoE cameras.
Reolink PoE cameras can be powered over the Ethernet cable, and the Ethernet cable can transmit both data and PoE power.
You may run 1 Ethernet cable from the NVR to a PoE switch, then plug 2 cameras (up to 3 cameras) to the PoE switch.
However, please don't split 1 Ethernet cable into 2 RJ45 connectors, as 1 PoE port can't provide enough power for 2 cameras. And also, the Ethernet splitter doesn't support 2 cameras to connect to network at the same time.