Transformation Design Of GPON Optical Fiber Access Network In The Cross Street Area Of Baiyin Company

With the continuous development of the Internet data service, the demand for access bandwidth is also increasing. At present, the broadband access mode based on ADSL technology has been unable to meet the development of the future business, and the FTTx access mode based on GPON technology has been developed. It has become the main access mode of ADSL in the future.Compared with Baiyin iron railway broadband status quo, the vast majority of users are still using ADSL access mode, bandwidth in the 4M or so, has been unable to present the growing demand for Internet users, and the current GPON technology has matured in the access to the user, has been gradually replaced by ADSL access. 2015 Baiyin light to change the investment funds, in the cable is covered by the cell to carry out the optical network transformation, Baiyin iron and copper back into the copper back area of the project has entered a new era. I have the honor to participate in the Baiyin company’s Cross Street area both ADSL users of FTTH optical access project, in this project, I am mainly responsible for the district cable into the overall planning, equipment network design, data production and business adjustment and other work, the paper mainly comes from this project.In this thesis, the FTTx technology and PON technology are described in this paper. After the analysis of FTTH network and the important role of the various components, the GPON technology is a plus. And focus on the structure of GPON, GPON’s technical features, basic principles, physical characteristics and network system structure is analyzed, the existing investment costs in the pre- Baiyin light- change area is too high, the material waste and other issues. The Baiyin Cross Street business district user demand for the case, decided to change the area of optical access network based on GPON technology, and the priority from the market research results, users in the network, such as payment of cost distribution situation, to carry out the construction of thin FTTH coverage model, and further form a contiguous coverage, to ensure the high efficiency of regional the capacity expansion, avoid extensive, diverging new covering construction, reflects the feasibility of cell GPON access.The design of the Baiyin company Cross Street area, according to the FTTH GPON set up a pattern design, using two levels of light, in a thin overlay GPON network access to the characteristics of the company’s Cross Street area both ADSL users have been transformed. Using the HUAWEI 5680 hung to Tietong Wang Xian room BRAS and HUAWEI MA5200 G devices, the IP address pool, equipment and other aspects of the allocation of port VLAN. And the user ONT of the business opened configuration, the final test. Through a comprehensive test of the indicators are in line with the requirements of the new users and the network user bandwidth to 20 M as the standard, the user perception is obvious, the transformation of the project is successfully completed.