CCTV video baluns, also known as UTP baluns, will allow you to use the normal ethernet cables cat 5e to connect to power source of a normal Analog Cable.
The main advantage of using Video Balun is that Ethernet Cables such as cat-5 can be run over long distances easier than coax cable and for less money.
CAT 5E Cable has T4 pairs of 22 gauge wire in a cat5e cable, so you can use one cable for 4 cameras at once
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