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本文简单介绍了接入网的业务需求、发展趋势及现状 ,重点介绍了ADSL接入技术特点 ,并设计了ADSL宽带接入的网络结构。
This article briefly introduces the business requirements, development trends and current status of access networks. It mainly introduces the features of ADSL access technologies and designs the network structure of ADSL broadband access.