HFC双向网改造中关于接入网方案的选择

Plan Choosing of the Access Network in the Bidirectional Network Transformation

有线电视网络的双向改造分为核心传输网络和接入网络改造,由于核心网络已经使用成熟的光传输网络,非常容易实现双向传输,主要需要解决的问题是接入网络的双向改造。介绍HFC双向网改造中EPON+LAN和EPON+EOC两种接入方案的技术特点,并根据普陀网络现状对接入网方案进行选择。

The bidirectional transformation of CATV network is divided into the transformation of core transmis- sion network and Access Network. Since the core network has already used the mature optical transmission network, it is very easy to accomplish bidirectional transmission. The main problem which should be solved is the bidirectional transformation of the Access Network. This LAN and EPON ＋ EOC access technology in the bidirectional paper introduces the characteristics of EPON ＋ network transformation. Then it chooses the Ac- cess Network plans based on the current situation of network in Putuo.