一种电信号与光信号自切换电路的设计  

An Electric Signal and Optical Signal Self-Switching Circuit Design

作　　者：田海波 吴胜华 杨春瑜 Tian Haibo;Wu Shenghua;Yang Chunyu(Nanjing SAC Valmet Automation Co.,Ltd.,Nanjing,210032,China)

机构地区：[1]南京国电南自维美德自动化有限公司,南京210032

出　　处：《仪器仪表用户》2022年第8期10-14,共5页Instrumentation

摘　　要：为解决在不改变原工业设备通讯口的条件下,延长总线之间传输距离,本电路将电信号直接转成光信号进行传输,并可再转成电信号的电路。目的是将现有的电缆通信直接转换为光纤通信,在不改变工业设备通讯口的条件下,降低硬件成本,延长总线之间传输距离,提高传输速率。该方案已应用到工程中,运行状况良好。To solve the problem without changing the original industrial equipment communication port conditions, extend the transmission distance between bus, this circuit to transmit electrical signals directly into the light signal, and can be converted to electrical signal circuit, the purpose is to transform the existing cable communication directly for optical fiber communication,without changing industrial equipment communication port conditions, reduce the hardware cost, extend the transmission distance between bus. This scheme has been applied to the project and runs well.

关 键 词：光纤通信 485通信 自动转换电路 

分 类 号：TN913.7[电子电信—通信与信息系统]