apd 0 Posted October 31, 2006 I bought a samsung system that came with 4 cameras(SCC-12) that are wired with the six pin phone line type cables. I bought two extra cameras(MBC-322) that have the round six pin cable. These are samsung also, and both are 12v. I cannot get the video to show up on the monitor with the extra cameras. I am not worried about the audio. I wired the power, ground, and video to the corresponding wires from the monitor. Could it be the LINE LOCK wire? Please help. Thanks Share this post Link to post Share on other sites