中文摘要：

目前在电信网、广播电视网和互联网三网逐步融合的背景下,有线电视网络面临前所未有的挑战,使用何种改造方案来实现双向网络的改造就显得尤为重要。介绍了广电网络双向改造的技术方案及其特点,对有线电视网络双向改造使用的CMTS＋CM、EPON＋LAN、EPON＋EoC三种方案的优劣进行了分析和比较,对EoC技术进行了详细论述。从业务性能、建设成本、改造技术复杂程度等方面进行分析,最终认为EPON＋EoC是广电网络双向改造、实现三网融合的最佳方案。广电网络运营商应根据实际情况,选择适合的EoC方案。

英文摘要：

During the digital convergence process,which is the integration of telecom,CATV and Internet,there is new challenge for the CATV network.It is crucial to choose appropriate reform technology for the CATV network.Introduces the two-way transformation scheme of CATV network.According to the detailed analysis and comparison of three networking technologies,such as CMTS ＋ CM,EPON ＋ LAN,EPON ＋ EoC.Furthermore,EoC-related technologies are explained in detail,from the business performance,the cost of construction and the complexity of transformation.The conclusion can be reached that EPON ＋ EoC is the most suitable choice for the current two-way transformation and the subsequent convergence of three networks.However,it is suggested that the transformation of CATV network be based upon the actual situation.