基于光纤传输的PCI Express总线延长方法与实现

Method and Implementation of PCI Express Bus Extension based on Optical Fiber Transmission

为实现PCI Express总线的远距离传输,提出了一种PCI Express总线延长方法。该方法以光纤作为传输介质,采用光电转换模块,将PCI Express总线的电信号转为光信号,经光纤传输延长后,再使用光电转换模块将光信号还原为PCI Express总线电信号。该方法结合了光纤传输信号质量高、传输距离远以及重量轻等优点,将PCI Express总线有效延长至30 m,并搭建测试环境进行了功能和性能测试验证,实现了PCI Express总线的远距离传输。

In order to realize the long-distance transmission of PCI Express bus,this paper proposes a PCI Express bus extension method.In this method,the optical fiber is used as transmission medium;the electrical signals of PCI Express bus are converted to optical signals.After the optical fiber transmission is extended,the photoelectric conversion module is used to restore the optical signal to the PCI Express bus electrical signal.This method combines the advantages of high optical fiber transmission signal quality,long transmission distance and light weight,effectively extending the PCI Express bus to 30 m,and setting up a test environment for functional and performance test verification,realizing the long-distance transmission of the PCI Express bus.