Multiple resolutions up to 1080i and multi-channel digital audio are effective at distances up to 150ft, making the HDTV Extender over Cat 5 cable an economical alternative to fibre optics or copper cables for medium-length installations. It is highly advantageous when upgrading audio/video systems from analogue to digital because cabling does not have to be replaced.
THe HDTV Extender is available in two models that work with HD's two most popular interfaces - DVI (digital visual interface) and HDMI (high definition multimedia interface). DVI, often the preferred format for professional AV applications, transmits high-resolution, uncompressed digital video data from source to display. HDMI, geared towards the consumer market, transmits high resolution, uncompressed digital video and multi-channel digital audio from source to display. When used with computer-based systems, DDC control signals are sent in addition to HDTV video on their own dedicated Cat 5 cable.
(Lee Baldock)