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Common Features And Characteristics Of Digital Video Recorder Servers
By Nahshon Roberts
As you may know, a digital video recorder server is used in DVR surveillance systems of large
public places such as hospitals, sports stadiums, shopping malls, office, and office buildings. These
security systems are so large that a machine should be powerful enough to handle as much as 64
video channels! Amazing, isn't it? Here are some characteristics of DVR servers.
Operating System and Compression Algorithms
Most DVR servers are Linux-operated and they use H.264 video compression technology to provide
real-time video recording and playback. Most machines can display video resolutions of up to 720 x
480. This means that your surveillance videos are clear and sharp. The number of channels that a
digital video recorder server can handle varies on its design and use. Machines used in small stores
can accept at least 8 channels, while those that monitor very large places can hold up to 64 channels.
However, the graphical interfaces of some machines can only display 8 channels at a time, so you may
have to scroll your way down to get to channel number 64.
Common DVR Server Features
No matter what the brand or make of a digital video recorder server, you should look for these
necessary features: live recording and playback speeds of 480 frames per second (fps), digital
watermarking, object count, motion detection, multi-channel display, CD and DVD burning, and pre and
post alarm recording. The storage capacity of servers vary with