FTTH Access Technology Research And Implementation Based On EPON

In recent years, the development of internet is becoming more and more popular and the faster. People's growing demand for communications of switching and transmission are asking for higher requirements, but the backbone transmission rate and the exchange of capabilities makes the access network has become the bottleneck of the communication network.ADSL is currently the mainstream of broadband access technology in China, mainly provide general Internet services, Internet services, video conferencing and enterprise private line services, but with the development of broadband access technology and the intensified competition among operators, broadband access services have become a key factor in attracting regular users.The operators are fully aware of the enormous potential of the area, have to shift the focus of development and services to the IPTV (Internet TV) and VOD (video on demand) and other new business.But as IPTV and VOD and other new business development, accessing to a very high network load demands, such as video play, digital TV and other services at least 7Mbit/s of bandwidth, and high-definition digital TV is at least 20 Mbit/s of bandwidth, and the current mainstream way of ADSL access bandwidth can not meet the needs, and therefore with high bandwidth and high stability of the advantages of FTTH (Fiber To The Home) FTTH technology development and application is becoming the trend.In this paper, FTTH access technology mainly carrys out with the following aspects,First, through the introduction of the concept of FTTH, including a detailed analysis of multi-service transport platform, point to point Ethernet passive optical network systems and passive optical network technology, through the above comparison of FTTH implementation techniques, obtained a variety of techniques advantages and disadvantages, and for occasions.Second, this paper describes the main FTTH access to achieve PON (Passive Optical Network), and PON's basic structure, classification were analyzed. Through several PON access technology comparison, the current EPON is the most suitable for China, and can be strong in the development of China's FTTH access technology.Third, focus on the EPON system reference architecture, multiplexing principles, protocol stack, the frame structure and external interface, providing the theoretical support for EPON-based FTTH construction..Fourth, the combination of FTTH access technology, EPON principles, and FTTH construction-related requirements, this paper describes Suzhou Yunjincheng the construction of residential fiber to the home as an example.