Research And Engineering Application Of Home Broadband Access Based On PON Technology

With the development of broadband technology,more and more business is carried out in the home broadband network.Users can experience video,broadband Internet and IP voice and other services.The user's demand for bandwidth capacity and network stability is gradually improved,and the ultimate goal of the broadband Internet access network is the primary driving force of new access technology.At present,the three telecom service providers in China are withdrawing their traditional "copper" network of cable as access technology,and have replaced the existing network with optical fiber network since 2011.The traditional ADSL has been replaced by FTTH.PON technology has a variety of business solutions,which can provide access to FTTB,FTTO,FTTA,FTTH,etc.The integrated user's bandwidth,network utilization,construction cost,maintenance cost and so on,the current home broadband adoption of FTTH in the design and implementation of the access plan.The FTTH access system consists mainly of optical circuit terminal(OLT),optical shunt(OS),optical user terminal(ONU),and optical fiber connected to these components.In addition to the optical line terminal on the side of the machine room,the other access side devices are passive devices,which bring great convenience for construction and maintenance.The family broadband network construction plan should take into account the existing network current situation and the future network development,the planning should be carried out on the premise of fully familiar with the business development.The contents include the setting of OLT cloth,the setting of PON,the cloth of the splitter and the construction of the optical cable distribution network.Family is the core content of broadband network construction planning for the construction of the cable distribution network,distribution network construction costs should be considered,the pipe hole resources,equipment installation location,cable CuiHaoZhi aspects of factors.Comprehensive consideration of all aspects to achieve the economic feasibility of the construction plan,to provide users with the optimal speed and stability of the best access network.In order to solve the family broadband access problem of 862 residential communities in the dongcheng district of Beijing,this paper designs the FTTH access network based on GPON technology.Project emphasize practices and field experience to determine level of light as the construction of the access network design model,in the center of the community a outdoor type fiber optic cable transfer box used for the concentration and scheduling of cable inside the village,from the box to the other building inside the village fiber cloth.For high intensive construction,high-rise buildings can be divided into multiple low-rise housing,by the middle box to the other floors respectively fiber cloth,GPON-FTTH construction for residential district,to achieve economic,reasonable and convenient d target.GPON network construction compared to the traditional network construction,equipment installation,commissioning and troubleshooting rely on special tools to complete.In the construction of specific problems for the development of ideas and communication network functions.According to the optical transmission of network applications,integrated wiring,installation,OLT and ONU configuration of the cloth and the configuration principle of PON technology,in-depth study and discussion,to complete the high efficiency and large capacity of business access.The application of high quality transmission technology can realize the current household network business requirements.In the face of higher and higher market demand and business transformation,GPON technology will become the market mainstream.