Q: Can the power supply of the camera also be done via the network connection?
A: By default, it is only with the power supply. What you mean to me is a PoE version of the camera, what you can do is use a 12V or 5V PoE splitter. This will allow them to power the network cable from a PoE injector or PoE switch and connect the splitter directly to the camera. This then splits the power and data and outputs them separately to the camera. You will also find the 5V splitter on the INSTAR products on Amazon or in the INSTAR online shop.