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1引言在三网融合的大趋势下,电信、电力等非广电行业借助EPON技术,采用FTTH(FiberToTheHome)架构,实现了越来越宽的双向数据接入。EPON技术与FTTH光纤网络架构一起,将成为电信和电力行业实现三网融合最主要的途径。面对三网融合的形势,广电行业在2008年也提出一个相对应的“NGB下一代广播电视网”的建设目
1 Introduction In the general trend of triple play, telecom, power and other non-broadcasting industries use the FTTH (FiberToTheHome) architecture to realize wider and wider two-way data access with EPON technology. EPON technology and FTTH optical network architecture, together, will become the telecommunications and power industry to achieve the main way of triple play. The face of triple play in the situation, radio and television industry in 2008 also proposed a corresponding “NGB next generation broadcasting network ” construction project