That's clearer
, thanks for going to the trouble of updating it. Is there anything that put you off specifically about not using PoE for the sensors, or like you said below it was easier to just share the 12v for all the sensors?
After discontinuing my old TVL system I also have a 12v / 5A supply so that is also an option.
I don't know about yours but the transformer in my PTZ power supply was loose, picked it up and the thing slides back and forth free as a bird! It was easier for me to use PoE+ since the switch had the capability.