Dual Ownership Of SDH Transmission Network Design Application

Communication is great power to promote civilization,progress and development of society.Transmission network should observe the building principles which are high speed,safety,and flexibility,and adapt to the developing need for comprehensive business based on broad band.SDH(Synchronous Digital Hierarchy)is an multiplexer,line transmission and switching capabilities into one,unified network management system operated by the General information transmission network.The design of dual ownership of the main transmission network model proposed to solve the central bureau,a focal point such as a single-node failure conditions.In this article,node protection is the focus of network planning.The program places the city in a transmission network application,greatly improving the security of the transmission network,through the central bureau to achieve a two-node protection,the end of business are attributed to different nodes in the node devices,convergence layer rings are attributed to different node devices.By power off the node test,multiple fiber pull test,the business can be properly protected,thereby improving the security of the transmission network.This papers in first chapter of introduction in the main describes has papers of research background,second chapter describes has SDH of transmission principle and features,third chapter to out has SDH transmission network double belonging programme design,fourth chapter is double belonging programme of application,fifth chapter is transmission performance test,last a chapter is closing,on papers work for has summary,and made has next research of envisaged.