So I’ve been asking a lot of dumb questions here lately. I’ve had cctv since 2005 but now find myself wanting to learn more. I’ve read a couple posts where the person has a NVR with Poe but chose to use a Poe switch instead. Why would be the reason for that? 2nd question about Poe+. I assume some cameras like PTZ need more power to run than provided by regular Poe. So in this case they would have to run a Poe+ switch. Is that correct?