Design For FTTH Access Network Transformation Scheme Of Urbanization

With the continuous progress of science and technology, communications industry also in the rapid development,the rise of various Internet services, making the network more dependence on the network, the transmission rate, stability, confidentiality of the requirements are also increasingly high.The traditional means of access network has been unable to meet the need of users which has gradually withdraw from the market,and the fiber access network becomes the prime choice of material which making the development of fiber access network technology becomes particularly important. The development of optical fiber communication has entered the era of FTTH today, it is a milestone in the history of communication development.The existing fiber access network scheme has diversified trends, and it has great significance for the investment of engineering construction by using different light and equipment selection in different environment.However, in the sparse user environment, the proposed scheme for the sparse user environment is proposed for the sparse user environment, and the research results of the FTTH access network scheme are presented.Firstly,the paper states the concept,composition of Passive Optical Network(PON) and the choose of spectroscopic methods.PON means that the ODN does not contain power supply and variety of active devices,now PON which adopted is divided into three kings of PON technology,EPON,GPON and APON/BPON.The passive optical network is made up by three aspects which are optical network unit(ONU),optical line terminal(OLT) and optical distribution network(ODN).ODN network which spectroscopic method named centralized and distribute is an important part of building Fiber TO The Home(FTTH),studying the advantages and disadvantages.So building FTTH chooses the suitable spectroscopic method which needs to refer to the characteristics of environment,density and distribution.The paper describes the basic principles of FTTH,then using FTTH network architecture and different topology architecture to make programs in different environments.Analyzing the fiber network model,selection and deployment of equipment in different environments such as government and enterprise,downtown city,villas and rural areas,then designing the network reconstruction plan of FTTH access network in the urban environment.For rural users to adopt plan of the need to distribute program,the OLT is installed in the original room of the township,then laying the fiber optic wiring for users who need.The means implement the real access to FTTH and data is transmitted through optical fiber transmission;as for users who living in the villa can be seen as a part of rural areas,however considering the user needs are relatively high for FTTH.In addition,paying attention to the selection of equipment and construction,which can guarantee the quality of service, meet users needs and experience,also take into account the future users needing expand and business incremental redundancy. Finally, prospecting the construction and reconstruction of the FTTH network which is exited in different environment.