Venel--DC 2.1 Barrel Jack Adapter - Male for Arduino Power Plug. It Can be Easily Connected to a 9V Battery or 6 AA Batteries Box. You Can Also Connect The Power Supply or Any Other Type of Battery

trust me here a 2.1 millimeter and DC jack determine about in the end so basically we have the jack on this end but you can see I'm just sort of tailored slightly we have a terminal block here so why would we be using this but basically we'll be using it for if our transfer in parallel on a cat5 cable it would terminate here and then we would use this socket here to push into a parent divided power from from a remote power unit so what would you use in conjunction with what basically we would use it with is 2.1 millimeter socket here which will be taking power from a power unit and then converting it and running an alarm to cat5 cable as such as here okay so that dad provides that the ability to run again the cat5 cable normally and from a power unit or a cat5 cable to camera with light power to the camera now normally also core should be running a picture from the camera back to we wou