有线电视HFC网络光缆的日常维护

Routine Maintenance of CATV HFC Network Optical Cable

混合光纤同轴电缆(Hybrid Fiber Coax,HFC)技术是一种兼具经济性以及实用性的数字接入技术,其传输容量更为理想,可以有效强化双向传输的能力,因此在我国得到十分广泛的运用。HFC网络与早期有线电视系统(Community Antenna Television,CATV)同轴电缆网络之间有显著的差异,所以在维护工作方面,需要维修人员结合HFC网络特征制定针对性的措施。为此,分析HFC网络结构,介绍目前HFC维护工作方面基本情况,从前端机房、网络光缆干线等方面提出相应的日常维护方案,以期为我国电视HFC网络光缆维修人员提供参考与帮助。

Hybrid Fiber Coax(HFC)network optical cable technology is a kind of digital access technology with both economy and practicality.Its transmission capacity is more ideal,and it can effectively strengthen the two-way transmission capacity,so it is widely used in China.There are significant differences between HFC network maintenance and early Community Antenna Television(CATV)coaxial cable network,so in terms of maintenance work,maintenance personnel need to formulate targeted measures according to the characteristics of HFC network.Therefore,this study briefly analyzes the HFC network structure,and introduces the basic situation of HFC maintenance work at present,and puts forward the corresponding daily maintenance scheme from the front-end room,network optical cable trunk line and other aspects,in order to provide reference and help for the maintenance personnel of TV HFC network optical cable in China.