A video multiplexer (also known as a video mux, CCTV multiplexer, or color quad processor) combines video signals from multiple CCTV security cameras, or other analog video devices, and displays the video streams on one monitor. This allows the video from all cameras to be recorded on a recording device that has only one video input, such as a surveillance VCR. For example, if you have four security cameras, each of the four video signals from each camera is synchronized by the CCTV multiplexer and recorded on the same videotape.
Video multiplexers and color quad processors are also used in video surveillance systems that have complex monitor display requirements. The multiplexers that CCTV camera Pros supplies are capable of handling various screen display configurations. Please watch these video demonstrations to see how these devices allow the user to select between single camera, dual camera, quad/grid, eight channel, nine channel, and sixteen channel grid views using the wireless remote control that is included.
The above video demonstrates the 1080p HDMI video output of the VM-HD4. In the video, the VM-HD4 has (4) 1080p security cameras connected to it - 2 AHD and 2 TV cameras. Please select 1080p video resolution in the lower right of the YouTube video player and watch in full-screen mode to see the best quality video.
These videos demonstrate the video processor capability of the VM-16RT video multiplexer and the VM-Q401A color quad processor. Both videos were created by connecting four CCTV cameras to each device and connecting the output of the device to a 42" flat screen monitor. A high definition video recorder was set on a tripod to videotape the output. Please note that when videos are converted and uploaded to YouTube for display on web pages, some quality degradation occurs, so actual display resolution is typically better than what is seen in these videos.