EPOC(EPON Protocol over Coax)作为广电NGB网络技术的一种新选择,定义了由光介质到同轴电缆介质的物理层转换协议,实现了EPON帧从运营商到用户家庭的端到端透明传输,解决了当前EPON+EOC双向网络改造方案中固有的一些问题,实现了全网统一管理。EPOC一出现即受到各方的一致追捧,它将成为未来广电双向网络改造、三网融合业务拓展的技术支点。 EPOC (EPON Protocol over Coax), as a new choice of broadcasting NGB network technology, defines the physical layer conversion protocol from optical medium to coaxial cable media, and realizes the end-to-end transparent transmission of EPON frame from the operator to the user’s home , Which solves some problems inherent in the current EPON + EOC bidirectional network transformation solution and achieves unified management of the whole network. As soon as EPOC emerged, it was unanimously sought after by all parties and it will become the technical fulcrum for the future development of two-way radio and television networks and the expansion of triple play networks.