The normal method of digital signal transmission is first briefly introduced and the necessity of two-wire operation transmission is explained and puts forward a novel design method.
本文首先简要介绍了通常采用的数字信号传输方法，说明了采用两线制传输的必要性，并提出一种新颖的设计方法。
ASI system consists of the master, the slave and the transmission system. The transmission system is made up of the two wire ASI cable, ASI power supply and the data decoupling circuit.
A SI总线系统由主站、从站和传输系统3部分组成，而传输系统又由两芯asi电缆、A SI电源和数据解耦电路构成。
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