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非对称数字用户线(ADSL)是利用现有电话网的铜双绞线为用户提供宽带业务的一种新技术。本文介绍了ADSL的基本概念、原理,并对ADSL市场的当前状况作了简单分析。
Asymmetric Digital Subscriber Line (ADSL) is a new technology that provides users with broadband services using copper twisted pairs of existing telephone networks. This article introduces the basic concepts of ADSL, the principle, and the current status of the ADSL market made a simple analysis.