A Design Of A Expressway Communication Network

Expressway networking toll is surely a trend in the development of expressway toll management.This thesis on the designing of the trunk communication network is based on the condition of Jiangxi expressway networking toll communication,setting up a transmission trunk layer of SDH STM-4. In order to maintain clock synchronization of the whole communication network,a proposal of master/slave clock synchronization signal network has been put forward in this design.The designs bat the technique and the function of the subsystem around;describe the realization of communication subsystem;provide the charts of the communication network,the clock synchronization signal network and the network management etc. Furthermore, this design makes some researches of how expressway communication network suit the development of communication technology and expressway comprehensive businesses. This design has been successfully implemented in Jiangxi expressway networking toll. Jiangxi expressway have completed the chief target, which is realize Jiangxi expressway networking toll basically. The system has run steadily since operation, brought obvious benefit of society and economy.