DS-7616NI-E2/8P/A

Ah OK, I think I see where my confusion comes from.

I thought the NVR was separating the internal PoE network ports from the LAN port and was only looking for cameras only on the PoE ports or on a LAN 2 port for non-PoE model.

But now that I'm looking more closely at the diagrams, I see that not all models have LAN 1 / LAN 2 ports.

So, now I understand cameras can technically be connected on a switch connected to the LAN port or on the PoE ports.

Regarding PoE ports, is it one camera per port or could a switch be connected to a PoE port to have more than one camera per PoE port ?