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  1. Hi, I am hoping someone here can haelp me with this question. I have acquired an older cctv camera (no brand name) and I want to power it up and fool around with it. It does say that it requires 12vDC. However, it has a single cable coming out that splits into two terminations; one female bnc coax and one male (recessed) rca. I have checked the continuity and I believe that these are identical in terms of their pinouts. Now, how do I provide power to this thing, is it a 12v forward bias on the ground as I suspect? Also, once I've powered it, is it even compatible with my standard "consumer" rf equipment? Thanks, Ryan Nestor