The main facts we should consider are the trouble caused by the communication cable, communication power, t type branch or the terminal resistor problem in the application of site bus technology.
现场总线在应用中主要考虑其通信电缆、通信电源故障，“T”型分支或终端电阻故障也会引起总线故障。
It solves the problem of modulate and demodulation of differential signal and achieve data and power signal communication in coaxial-cable.
该模块解决了对差分信号“调制”、“解调”问题，实现了数据和电源在同轴电缆上的同步传输。
Inductance coupling is the most important from power cable with metallic shield to communication lines when they are parallel with in a long length.
在平行长度较大时，带金属保护套的电力电缆对通信线路的干扰主要取决于感性耦合。
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