By Raymond Shadman Custom Video Security 310-370-9500 x1 1. Define objective. What do you want to see, in what level of detail, and how far away? How many megapixels and what focal lengths are required to achieve viewing objectives? Are objects moving? If so, what size are they with respect to the field of view, and how fast are they moving? How many cameras will be on the system? (Most recorders or VMSes support a maximum number of cameras.) Will more cameras be added in the future? Are there multiple locations, and if so does the corporate headquarters want administrative control of each location? If so, would there be a network admin who would want to apply modifications to each location’s server in bulk using Federated Architecture (Milestone XProtect Expert or Corporate)? Will the system be recording on a schedule, continuously, on motion detection, or both? 2. System design. How many clients will be viewing the cameras simultaneously, and from inside or outside the network? (If a lot of clients viewing multiple cameras at a time on a Milestone Expert or Corporate system, a separate Mobile Server should be used.) Are clients PCs or Macs? Are mobile clients Android, iOS, […]
Read Now 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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