关于信息光纤传输两端上电顺序问题的探讨  

Discussion about the power sequence problem of the two ends of the data fiber transmission system

作　　者：司国良[1] 李云飞[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《仪器仪表学报》2013年第S1期126-129,共4页Chinese Journal of Scientific Instrument

摘　　要：为解决某些光纤信息传输系统中遇到的上电时收发两端不能正常通讯的问题,提出一种控制光纤传输两端上电顺序的解决方法,利用SFP封装光纤模块的发送使能信号TX_DISABLE和接收状态信号RX_LOS,构造基于FPGA的控制时序电路,从而达到控制收发两端光模块工作顺序的目的。实验证明,这种方法有效的解决了由于上电顺序引起的光通讯问题,使信息能够正确传输,调整光模块工作顺序的方法,解决了实际的工程问题,具有较强的参考价值。In order to resolve the problem that the fiber transmission system can't work correctly when powered, a way of controlling the work sequence of the optical module at the transmitting and receiving ends has been carried out. The TX_DISALBE and RX_LOS signal of the SFP optical module has been applied, based on which the control logic in FPGA has been designed, thus the work sequence of the optical modules at two ends has been controlled. This way solve the communication error caused by the power sequence, and make the data transmit correctly. The optical module work sequence modification way solves the practical trouble and bears reference value.

关 键 词：光纤传输 上电顺序 SFP光模块 

分 类 号：TN929.11[电子电信—通信与信息系统]