Design And Realize Of The Hybrid Heterogeneous Link Exchange System Board

As the rapid development of Internet,people's demand for telecommunication quality and diversified telecommunication are growing.The traditional transmissionin satellite telecommunication system has characteristics of rate fixed transmission and disparate interface.This thesisthrough the transmission rate and different varieties in interface link for fusion,mix design and the realization of heterogeneous link exchange system board,with optional transmission rates,kinds of characteristics of the interface,to a certain extent to meet the communication needs of people.Firstly,this thesis analysed the demand of the mixed heterogeneous link exchange system board,According to the needs of different transmission rate and video acquisition and other interface requirements,established the link interface board and video acquisition boards of the overall solution;Secondly,because of the bad satellite environment of spaceborne switches and difficult maintenance,this thesis designed the reliability of the system board,include increasing the anti-jamming of the system,redundant backup unit and Thermal design of the system to improve the reliability of the board;Thirdly,this thesis designed and realized the hardware of the Mix heterogeneous link exchange system board containing the link interface board and video acquisition board,The link interface board solved the problems of rate fixed transmission in the traditional spaceborne switch,the plate adopts the hotplug SFP +interface,by adjusting the input clock frequency to determine the transmission rate,connection is suitable for the SFP + interface;The video acquisition board solved the problems of the disparate interface in traditional spaceborne switches,it contains a VGA and HDMI interface,camera collection interface,Ethernet interface,USB interface,STAT hard disk interface and other interface,the mixed interface type provide the real-time monitoringof the space satellite environment for spaceborne exchange system,the information exchange and the data backup hardware platform;Finally,the thesis test the hybrid heterogeneous link exchange system board,it verify the feasibility and effectiveness of the system.In the end,this thesis designed and realized the heterogeneous link exchange system board,the board of the link interface board and video acquisition board are connected through CPCI architecture to the exchange backplane,formed a video acquisition and data transceiver and other functions of high speed switch system.The system effectively solves the problems of single-function and transmission rate not optional in traditional switch,which has certain research value.