光纤通信接入网技术研究探究文档.doc

摘 要 信息产业是当今世界经济领域中最具有活力和竞争力的产业之一，它影响着人类的生活方式和生活质量。接入网是用户网进入城域网/骨干网的桥梁。随着SDH技术的大规模推广应用和ATM技术的发展，电信网的主干网已经基本上实现了光纤化、宽带化和数字化。 本文首先对接入网技术做了概述。通过对定义、物理参考模型、接入技术、发展趋势等相关内容的简要介绍，说明了光纤接入网是接入网技术发展的必然趋势。然后，本文深入研究了铜线接入和光纤接入这两种接入网的接入技术，着重研究光纤接入尤其是无源光网络(PON－Passive Optical Network)和目前主流的FTTx (Fiber To The x)。接着，本文对“光进铜退”的解决方案进行了具体的研究和分析。主流运营商的第一公里接入网络仍然主要以双绞线铜缆网络为主，为了满足日益增长的带宽需求，实现光纤接入，现有的铜缆接入网就必须进行改造。最后，本文对光接入网网管技术进行了介绍，讲述符合TMN要求的接入网管理系统的结构和功能，以及接入网网管功能的实现。 关键词：接入网，光纤通信，PON ABSTRACT Information industry is the worlds economy the most dynamic and competitive industries in the world, it affects the way people live and the quality of life. Access network is the user network access to metro/backbone bridge. With the popularization and application of SDH technology and large-scale development of ATM technology, telecommunications network backbone has been basically realized fiber, broadband and digital. Firstly, an overview of access network technology. By definition, the physical reference model, access technology, trends and other related content outline indicating the access network, optical access network is the inevitable trend of technological development. Secondly, this in-depth study of the copper access and optical access to both the access network access technology, and focused on particular passive optical fiber access networks (PON - Passive Optical Network) and the current mainstream FTTx (Fiber To The x/some place) .Then, the paper Light of Copper solution for specific research and analysis. mainstream operators first kilometer access networks are still largely dominated by twisted pair copper network, in order to meet the growing bandwidth demand, to achieve optical access, the existing copper access network must be modified. Finally, on the optical access network technologies are introduced, consistent with TMN requirements about the access network management system structure and function, and the realization of the access network of network management. KEY WORDS: a