摘要
为保证有线电视信号的优质传输并发挥有线广播电视传输网在今后我国信息高速公路建设中的优势,必须慎重和尽早实施有线广播电视传输网的升级改造。结合县级网络实际,对网络升级改造提出了可行性方案。认为在目前的网络升级改造中应尽量使用光接收机直接覆盖用户,每个光节点覆盖用户200～500户,单元用户采用集中分配接入方式,以减少信号串接点、故障率及运维成本,使网络及工程设计变得简单,并为双向回传等业务的开展奠定了良好的基础。
With the purpose of ensuring the transformation of CATV signals and making full use of the CATV transformation network in the information high way construction,the upgrading and CATV transformation network should be carefully implemented as early as possible.This paper combining with the practice,presents a feasible schedule of network upgrading.It holds that the directly coverage of optic receivers should be used in the upgrade.Every node covers 200 to 500 users,and the centralized distribution can be applied in unit users to reduce the signal concatenation, failure and cost, so that the network and project design can become easy and the services like bidirectional pass back will be well developed.
出处
《中国有线电视》
2010年第1期43-46,共4页
China Digital Cable TV
关键词
HFC网络
双向化改造
技术方案
HFC cable network
bidirectional reconstruction
technical proposal
