针对目前城域网建设中存在的问题，介绍光缆交接箱的原理、功能以及在城域网建设中的应用。
To counter the problems existing in the establishing of MAN (metropolitan area network), the author puts forward fiber-optic cabinet, introduce its principle functions and application in MAN.
简要介绍了城域网的基本概念、网络结构、规划原则，并针对中国铁通城域网建设论述了解决方案。
The essential concepts, network structure and programming principle of metropolitan area network (MAN) are introduced briefly. And the solution for MAN construction of China Railcom is discussed.
本文对城域网的拓扑结构、介质访问控制协议及国际上城域网研究动态进行了综述。
This paper gives an overview of topologies, medium access control protocols and current status for metropolitan area networks.
对当前城域网的业务需求进行了分析，提出四类城域网建设解决方案。
Service requirements in the current MAN are analyzed. Four kinds of solutions for the construction of MAN are put forward.
本文结合大连网通城域网建设的实际工程，进行了城域网中的智能光网络的设计研究。
In this thesis the research of a Metro ASON design is carried out which is combined with Dalian Netcom Metropolitan Area Network (MAN) actual construction engineering.
最后，结合宽带城域网建设的关键技术和大连宽带城域网现状，给出该教育联网项目的关键问题解决及具体实施方案。
Finally, with the key technologies of Dalian Metropolitan Area Broadband situation, the paper gives the solving of key networking project of the education problem and the specific implementation plan.
最后，结合宽带城域网建设的关键技术和大连宽带城域网现状，给出该教育联网项目的关键问题解决及具体实施方案。
Finally, with the key technologies of Dalian Metropolitan Area Broadband situation, the paper gives the solving of key networking project of the education problem and the specific implementation plan.
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