Hybrid DVRs and the Benefits of using Megapixel/HD Security Cameras

A hybrid DVR is a DVR that can accept more than one type of video signal. The three most common video signals on the market today are analog, HD-SDI, and IP. It is advantageous to have a hybrid DVR for many reasons, the most significant of which is to utilize existing analog cameras, while adding megapixel cameras to areas that need more detailed monitoring with clear digital zoom-in capabilities. HD cameras can also be used to minimize analog camera count, as they have more pixels and can cover large areas of real estate with a minimal number of cameras. ANALOG CAMERAS Analog, a closed-circuit television system (abbreviated by CCTV), is the traditional video signal, which has been in use for decades, and is typically carried over coaxial cable. In some cases people use Cat5 network cable to send video and even audio and power over network cable with the use of baluns, which are adapters that convert the camera’s BNC connector to RJ45 for Cat5, or to twisted pair, which is common for video-only signals. The typical distance limit for coaxial cable is between 250 to 450 feet, depending on the quality of the cable. With baluns and Cat5 cable, […]

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Raymond Shadman2014-03-16

Raymond Shadman2014-03-16