Friday 25 January 2013

COMMUNICATION MEDIA-COAXIAL CABLE

COAXIAL CABLE 
ITis widely used for cable television systems, office buildings, and other work-sites for local area networks. The cables consist of copper or aluminum wire surrounded by an insulating layer (typically a flexible material with a high dielectric constant), which itself is surrounded by a conductive layer. The insulation helps minimize interference and distortion. Transmission speed ranges from 200 million bits per second to more than 500 million bits per second.It is very successful and very much useful wired communication media for the proper and nice performance of a computer network,
ITU-T G.hn technology uses existing home wiring (coaxial cable, phone lines and power lines) to create a high-speed of up to 1Gigabits /s



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