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目前,全国各地都在进行有线电视网络的HFC改造。我县于2000年完成了HFC改造。改造后的有线电视网络故障率明显降低,但是网络中故障还时有发生。我长期以来从事有线电视网络的维护工作,根据工作经验,故障发生在前端到光工作站的概率很小,大多发生在同轴电缆部分。系统内的故障是形形色色的,下面我就在工作中遇到的一些故障特例作简要阐述。
Currently, HFC transformation of cable television networks is underway all over the country. My county in 2000 completed the HFC transformation. After the transformation of the cable network failure rate significantly reduced, but the network failure also occurred. I have long been involved in the maintenance of cable networks and, based on my work experience, the probability of a fault occurring at the front end to a light workstation is very low, mostly in the coaxial cable section. System failure is all kinds, the following I encountered some of the work in the special case for a brief description.