Optical Fiber Coaxial Hybrid HFC Technology
Fiber/coaxial hybrid network (HFC, Hybrid Fiber Coax) is a broadband user access network based on analog frequency division multiplexing technology, which comprehensively uses analog and digital transmission technology, optical fiber and coaxial cable transmission technology, and radio frequency technology. . The backbone system uses optical fiber to transmit high-quality signals, and the distribution part uses a coaxial cable system with a tree topology to transmit and distribute user information. HFC is a network developed on the basis of cable TV network that can simultaneously provide downlink CATV services and interactive services such as bidirectional language, data and digital images.
Three networks in “three networks in one”
Computer network, telephone network, cable TV network
