提出了一种利用高速光电耦合器提高并口传输距离的方法,利用光电耦合器对传输线进行隔离处理,大大提高信噪比。讨论了光电耦合器的特性和选取原则,试验结果表明:这种方法能够在保持并口传输的速度优势以及系统结构不变时,保证信号传输的准确性,具有较大实用价值。
- Abstract:
- An enhanced way of parallel interface transmission distance enhanced with the high speed optical coupler is proposed in this paper.Transmission line is isolated with optical coupler,It improves the SNR greatly.The characteristic of the optical coupler and the principle about how to choose an optical coupler are discussed.The experimental results show that this way has good transmission performance with the high speed of parallel-interface bus and the configuration of the system is unchangeable,it ensures signal transmission accuracy and has high value in applications.
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