The Design And Practice Of FTTH Engineering Based On EPON

With the rapid development of Internet multimedia technologies and services,traditional broadband access technologies cannot meet the needs of users accessing the Internet to obtain diversified services.The development of network media technologies has prompted broadband access networks to provide higher bandwidth and thus provide better service for users.FTTH technology based on passive optical access networks has attracted the attention of telecom operators.Passive optical access networks have become an effective solution to solve the "last mile" bottleneck problem of users accessing the Internet backbone network due to their high bandwidth,fast speed,and easy extension.The FTTH project not only satisfies the user's need for high-speed access to the Internet backbone network,but also accelerates the process of industrialization and informationization of the "digital home",injecting fresh impetus to the development of the country's "Internet Plus".This article first introduced the FTTH project and its development status at home and abroad,and pointed out that FTTH has an important position as a construction project that the country and the telecommunications sector strongly support the development of.The article introduced the optical fiber access network technology of the FTTH project and analyzed and compared the traditional xDSL access network with the fiber access network,highlighting the technical advantages and development prospects of the fiber access network.This article focuses on the construction of FTTH projects based on passive optical networks,analyzes the basic principles of PON networks,analyzes and compares the current mainstream PON technologies,and points out that the development of FTTH based on passive optical fiber access networks is relatively complete.The technology has greater advantages over other PON technologies.This article combines the example of Pudong Shuinan Fiber Optic Reconstruction Project in Nanping,Fujian,and builds a fiber optic network based on user needs.Firstly,the FTTH system architecture and optical fiber access scheme are analyzed,and the deployment analysis of the optical fiber access network construction,network connection devices,network splitting mode,and ODN network cost are respectively analyzed,and it is pointed out that the ODN network planning existing in the FTTH construction is irrational and continuation.Device selection can not be adapted to local conditions and can not reasonably control the construction cost and other issues,and to address this issue,build FTTH network diagram model,using the shortest path algorithm in graph theory,to achieve the shortest distance from the end of the network to the user terminal,greatly saving construction costs.Secondly,for the "Pucheng Shuinan" optical fiber reconstruction project,the network structure,splitting mode,optical splitting ratio selection,and other optical fiber connection devices of the FTTH optical fiber engineering are analyzed and designed based on the shortest path design.Finally,the project's ODN network deployment plan,optical cable laying,and deployment and configuration of ODN network connection devices were implemented,and project acceptance of the bandwidth and optical power loss estimation and project engineering usage was performed to verify the reasonableness of the FTTH solution proposed in this paper.Sex and feasibility.This article is generated through the design and construction of participating projects in the actual work.With the continuous development of new technologies on the Internet,the business continues to evolve and update,and the demand for high-bandwidth access networks based on EPON-based FTTH projects is also increasing.This article can provide an effective reference for future FTTH access projects.