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近年来随着有线电视的发展,网络架设的延伸,线路中放大器的电源由分散供电转为统一集中供电,原来分散供电(220V)的放大器被撤回,取而代之的为集中供电(60V)的放大器。撤回的220V放大器被闲置,这些放大器性能良好,工作正常,弃之可惜。可否将改制成集中供电的放大器,用回网络?笔者经实验改制并成功地用于网络中,其运行工作正常,现将改制过程作一介绍。撤回的220V放大器工作状态良好与集中供电放大器不同之处在于供电方
In recent years, with the development of cable television and network extension, the power of the amplifier in the circuit is converted from a scattered power supply to a unified centralized power supply. The originally distributed power supply (220V) amplifier is withdrawn and replaced by a centralized power supply (60V) amplifier. Withdrawn 220V amplifier is idle, these amplifiers perform well, work properly, but unfortunately. Can be transformed into a centralized power amplifier, back to the network? The author of the experimental restructuring and successfully used in the network, the operation is normal, now the restructuring process for an introduction. Retreated 220V amplifier work in good condition with the centralized power amplifier is the power supply side