Quad is a video switching device that accepts video input from 4 cameras and converts them to all display on one monitor. 2 pages Quad can accept 8 channel video input. Multiplexer is a video switching device that accepts video input from 16 cameras and converts them to all display on one monitor. New DVR with multiple video inputs are replacing quads and multiplexers.
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| 8 ch Color Quad NTSC 60 F/S NTSC 720X480 8 BNC video output
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| 4ch color quad OSD menu NTSC 60 f/s 4 BNC video input
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