cctvnovice 0 Posted March 20, 2015 Hello. For each camera, I am using a Cat6 with baluns for the video connection and also a power balun at the camera so I may directly attach to a twisted pair from the Cat6. I am running video and power both inside the same Cat6 cable. When it comes to hooking the camera power up to the power box, I notice that I only need to touch the positive (+) wire, always the solid brown wire in my setup, to the terminal labeled Fused Power, and the camera comes on. There seems to be no need to hook the negative (-) marked wire (white with brown stripe) to the terminal marked Common? I have no idea, but I think this isn't supposed to be? The power balun I picked up off of Amazon has two marked screw terminals. On the plug it reads + and - but also D(+) and C(-) so I am following the labeling at both ends... Please tell me what you think my be causing this? Sometimes the image looks better with just one power wire (brown +) hooked up rather than both. If I try to reverse the two wires, the camera doesn't power on. I searched the web for an answer to this and found nothing. Hopefully someone here has run into this or knows what is going on. Thank you! Share this post Link to post Share on other sites
jazzar 0 Posted March 21, 2015 looks like you have a common ground wire in each of the pairs thus any one of them being connected gives you a return path to the 0v of the supply. Share this post Link to post Share on other sites
