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接入网是用户接入信息高速公路的“最后一公里”，在CATV（有线电视系统）中发展接入网，提供综合业务，具有良好的前景。HFC是CATV系统中广泛采用的结构。本文将讨论在CATV系统中建立综合业务网的方案，并将在分析了目前基于HFC的接入网存在的问题后，提出了一种新的网络结构，它能广泛满足宽带综合业务的要求。
The access network is the “last mile” for users to access the information superhighway and has good prospects for developing access networks in CATV (Cable Television Systems) to provide integrated services. HFC is a widely adopted structure in CATV systems. This article will discuss the establishment of an integrated service network in a CATV system and will propose a new network structure that meets the requirements of broadband integrated services after analyzing the existing problems of the existing HFC-based access network.