SCREENS Project
Digital video switching network development
Flat panel displays have replaced CRT (Cathode Ray Tube) monitors due to their dramatic price reduction and smaller space requirement. A new digital display connector (DVI) for flat panel displays is taking the place of the analogue display (VGA) connector, which has dominated in the market since 1987. This technological change makes the current equipment obsolete and has caused technological challenges for European SMEs in the multimedia switching network business.
Picture 2: DVI Connector, VGA Connector
In the DVI standard the transfer distance is specified to max. 5 meters, which is not enough in a typical classroom conference room environment. One goal of the project was to increase the transfer distance of digital video signal up to 20 meters. The DVI standard enables content to remain in the lossless digital domain from creation to consumption. It also enables better picture quality on flat panel displays. A new generation video switching network supports resolutions up to 1600 x 1200 pixels and 1920 x 1080 (HDTV) resolution. It also supports the next generation HDTV level digital training material formats like HD-DVD and Blue-Ray discs.
A next generation multimedia switching network consist of Video Switch Units, Video Hubs and User Interface panel. Video Switch Unit can be equipped with an optional USB board, which supports mouse and keyboard switching. Video Hubs are installed on crossroads of digital video cables. Also separate audio modules can be connected to the network. The multimedia switching network is controlled by a separate User Interface Panel. The products are manufactured and assembled in Electro-Hill Estonia factory.
Picture 3: Video Switch Unit