I have something similar in use at my theater. It came from Home depot for around 100 bucks, which was pretty cheap 4 years ago. The cable came in two sections, one hard wired into the camera, with a female coupler. The other was an RJ11 on one end, and the other had an Video RCA and a audio RCA, plus a female DC power connector. The cable has needed splicing a couple times, and luckilly it was just red, green, yellow and black. The coupler popped apart recently, so I took the opportunity to splice in a length of regular silver satin so I could move the camera farther from the stage.
My next project with it will be to move the camera again, cut a bunch of the cable out, re-splice, and feed it into an RF modulator so I can send the signal to the two ends of the stage on coax.
