Articles that Enrich and Expand on Physical Security Technologies

How DVRs Works

Unlike older CCTV systems that rely on bulky videocassettes, DVR (Digital Video Recorder) security systems offer a digital solution for recording and storing video footage. They achieve this through hardware and software, all working together to secure your property. Let’s delve into the key components and functionalities of a DVR system:

Direct Camera Connections: Unlike wireless systems, DVRs require a physical connection between each camera and the DVR unit. This connection is established using coaxial cables, similar to traditional cable TV connections.

Closed Circuit Operation: DVR systems function on a closed circuit, separate from your internet network. This means they operate similarly to traditional CCTV systems, offering a level of security by isolating them from potential internet hacks.

Analog Compatibility: DVRs are primarily designed to work with analog cameras. These cameras capture video signals and transmit them to the DVR unit through the connected coaxial cables.

Digital Conversion and Storage:  The DVR unit has a video encoder. This component plays a crucial role by receiving the raw analog video signal from the cameras and converting it into a digital format. This digital format is stored on the DVR’s internal hard drive for safekeeping.

Local Access Advantage:  A significant benefit of local storage is that authorized personnel can access recorded footage directly on-site from the DVR unit. This eliminates the need for an internet connection to view past recordings.

Posted in: Video Management Info