Xeno has now launched the XDR2 range of DVRs designed using the latest H264 video compression technology. Providing up to 25% space saving over MPEG4 compression, the DVRs offer a longer duration of storage on the same size disk.
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WAN (Wide Area Network)
A data-communications network spread across a wide geographic area and incorporating a large number of users. A WAN often uses transmission devices provided by common carriers. Examples of WANs include Frame Relay, SMDS and X.25.
Wavelets™
A suite of digital compression tools that is becoming popular in the CCTV industry, giving good picture quality at higher compression rates.
Wiegand
Originally a high security card and reader system using the properties of a unique alloy wire to produce a binary number. Now used more frequently to describe readers and controllers using Wiegand format data.
Windows
Graphical user interface.
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