Relationship between system technical specifications of cable metropolitan area broadband access network and developments of integrated service 关于有线城域宽带接入网主要系统指标与开展综合业务关系的思考
Chapter 1 introduce the concepts of broadband access netwotks , integrated services , qos , multiple - access protocols and cdma 第一章介绍了几种目前流行的宽带接入网技术以及宽带业务，服务质量，多址接入协议和码分多址技术。
Some foreign companies such as cisco have completed this technology . now , those key equipments and technology applied in china is still come from foreign companies 我国宽带接入网的基础建设已基本完成，但是核心设备和相关技术仍然来自国外厂商。
In order to build an intact " intelligent district , analysis of various technologies of broadband access network is firstly performed , and ethernet is adopted as its solution 从构建一个全新的智能化住宅小区的角度出发，本文首先对宽带接入网技术进行了分析和比较，并采用了以太网技术构造宽带接入方案。
After two years of technological preparations and investigations , shanghai telecom rolled out its broadband network in 2001 on a large scale , which included both backbone and broadband access networks 上海电信经过两年的技术筹备及探索， 2001年进行了大规模的宽带网络建设，其中包括骨干网以及宽带接入网。
Gpon , as a advanced broad band access network technology , is a solution for breaking the bottleneck of network band of access network . and it is a better choice of broad band access network for future Gpon作为一种先进的宽带光接入网技术,它为打破接入网段的网络带宽瓶颈提供了解决方案,是今后宽带接入网的较好选择。
The new scheme has a lot of advantages such as resolving " the funnel noise " in the upstream channel , high speed and low cost of building , which is likely to become an important broadband access network 这种新型的hfc宽带接入网具有抗“漏斗噪声”的能力强、传输速率高及建设费用低等优点，有可能发展成为一种重要的宽带接入网。
The hull , powered by a communication dedicated power supply , has good electro magnetic compatibility , and heat elimination . ist - 100m - s / m has been deployed in various broadband applications , will be used in backbone networks of ring or daisy - chain topologies 快速以太网光纤收发器ist - 100m - s m已经广泛应用于各种宽带接入网环境中，并将逐步应用于环形骨干网和链形骨干网中。
Epon system is a kind of passive optical network based on ethernet . epon has become one of the best technologies in the next generation broadband access network because it has many virtues , such as easy to upgrade and operation , low cost and high bandwidth Epon是一种基于以太网的无源光网络,结合了以太网的广泛性、易于升级和维护的优点以及光纤网的低成本大容量,成为下一代宽带接入网的最佳候选技术之一。
Based on the popularity and low cost with high bandwidth of ethernet and the large capacity of fibre network , a technology named epon , which is a positive optic network based on ethernet , come to be one of the best choices for next generation broadband access networking 借助以太网的普遍性及其低成本高带宽的优点和光纤网的低成本大容量性质,一种基于以太网的无源光网络epon成为下一代宽带接入网的最佳候选技术之一。
