多通道SFP光收发模块监测系统的设计与实现

发布时间：2018-09-06 19:12

【摘要】：随着全球信息化、网络化时代的到来,高带宽、高速率网络通信逐渐融入人们生活,得益于此,光纤通信技术取得了十足的发展。作为光纤通信系统中不可或缺的功能模组,光收发模块也得到了越来越广泛的使用。为了满足市场化与人们的需要,高速和智能化已成为光收发模块迫切的发展方向。至此,带数字诊断功能的智能光收发模块由此诞生,利用该功能可以实时监测光收发模块工作性能参数,保证光通信系统的可靠性和安全性。本文在研究SFF-8472、小封装可热插拔(SFP-MSA)光收发器多源协议的基础上,所做的主要工作及成果如下:(1)设计并实现了一套实用的、可扩展的多通道SFP光收发模块监测系统。该系统使用32位微控制器实现对光收发模块性能参数(模块电压、温度、偏置电流、输出/输入光功率)的采集、分析与处理。在系统的显示、控制方案设计中,采用26万色触摸液晶屏对模块参数实时显示,并且设计了良好的人机交互界面,维护人员可通过点击触摸屏对系统进行操作,如:监测通道切换、模块信息录入、禁能/使能光收发模块等。为了对多路具有相同设备地址的光收发模块进行监测,系统中使用了切换通信总线物理通道的多机通信方式,达到多通道监测的目的。(2)以验证监测系统在实际光通信应用中的可行性为目的,论文中设计了一种SFP光收发模块通信平台,该平台由高速串并转换器(Serdes)、SFP光收发模块电接口、并行总线输入/输出接口等构成,主要功能是实现低速并行信号与SFP光收发模块高速差分输入/输出信号之间的相互转换。在PCB设计方面,采用四层板实现,并且对PCB板中的并行信号线和高速差分线进行了仿真分析。使用光收发模块通信平台和待测光模块搭建了简易的点到点光通信链路系统,使待测SFP光收发模块处于正常及切合实际的工作状态。发送端并行信号通过通信平台和待测光模块转换为光信号,经过光纤传输到接收端,接收端光信号通过待测光模块和光通信平台转换为并行信号。论文中使用光收发模块监测系统对处于光通信链路中的待测光模块进行实时监测和相关功能操作,测试结果表明:该监测系统工作状态稳定,测试结果良好,达到了对SFP光收发模块性能参数实时监测的目的。
[Abstract]:With the advent of global information and network era, high bandwidth and high speed network communications gradually integrate into people's lives. Thanks to this, optical fiber communication technology has made a lot of development. As an indispensable functional module in optical fiber communication system, optical transceiver module has been used more and more widely. In order to meet the needs of marketization and people, high-speed and intelligent optical transceiver modules have become an urgent development direction. So far, the intelligent optical transceiver module with digital diagnosis function is born, which can real-time monitor the performance parameters of optical transceiver module, and ensure the reliability and security of optical communication system. Based on the research of SFF-8472, small package hot-pluggable (SFP-MSA) optical transceiver multi-source protocol, the main work and achievements are as follows: (1) A practical and extensible multi-channel SFP optical transceiver module monitoring system is designed and implemented. The system uses 32-bit microcontroller to collect, analyze and process the performance parameters of optical transceiver module (module voltage, temperature, bias current, output / input optical power). In the system display and control scheme design, 260000 color touch LCD screen is used to display the module parameters in real time, and a good man-machine interface is designed. The maintainers can operate the system by clicking the touch screen. Such as: monitoring channel switching, module information input, energy / enable optical transceiver module. In order to monitor the multiple optical transceiver modules with the same device address, a multi-machine communication mode of switching the physical channels of the communication bus is used in the system. In order to verify the feasibility of the monitoring system in the practical optical communication application, a SFP optical transceiver module communication platform is designed in this paper. The platform is composed of a high-speed series-parallel converter (Serdes) / (Serdes) optical transceiver module interface. The main function of the parallel bus input / output interface is to realize the mutual conversion between the low-speed parallel signal and the high-speed differential input / output signal of the SFP optical transceiver module. In the aspect of PCB design, four layers are used to realize the design, and the parallel signal lines and high speed differential lines in the PCB board are simulated and analyzed. A simple point-to-point optical communication link system is built by using the optical transceiver module communication platform and the optical measurement module, which makes the SFP optical transceiver module to be in a normal and practical working state. The parallel signal of the transmitter is converted to the optical signal through the communication platform and the module to be measured, and the optical signal is transmitted to the receiving end through the optical fiber, and the optical signal at the receiving end is converted into the parallel signal by the module and the optical communication platform. In this paper, the optical transceiver module monitoring system is used to monitor the optical module in the optical communication link. The test results show that the monitoring system is stable and the test results are good. The performance parameters of SFP optical transceiver module are monitored in real time.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN929.11

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