论文部分内容阅读
近年来,随着有线电视网络的规模化、数字化发展,对有线电视网络的维护管理提出了更高的要求,在有线电视网络维护管理过程中,我们发现与电源有关的网络故障占所有故障的30%以上,分析其原因主要有以下几点:一是电网停电造成放大器不工作;二是电缆接头氧化、接触不良引起供电异常;三是电网电压不稳定或雷电冲击脉冲引起放大器保险丝烧断;四是放大器进水、雷电冲击等引起放大器电源故障。针对以上问题谈谈笔者的几点解决措施。
In recent years, with the large-scale and digitized development of CATV network, higher requirements have been put on the maintenance and management of CATV network. During the maintenance and management of CATV network, we found that the network failure related to power supply accounted for all faults 30% or more, the analysis of the main reasons are the following: First, the power outage caused by the amplifier does not work; Second, the cable connector oxidation, poor contact caused abnormal power supply; Third is the grid voltage instability or lightning pulse caused the amplifier fuse blown; Fourth, the amplifier into the water, lightning shock caused amplifier power failure. In view of the above questions to talk about the author’s solution.