ADSL宽带接入技术

ADSL Broadband Switch-in Technique

ADSL是XDSL的一种非对称版本.非对称数字用户技术ADSL(Asymmetric Digital Sub-scriber Line)是目前国际上用来对现有电话网络进行宽带改造的一种通信方式,是传输技术中最常见的一种.指出了ADSL的特点和接入技术.ADSL具有很高传输频率;可以直接使用原双绞线,可同时上网和通话;独享宽带安全可靠等优点.同时把ADSL技术与其他常见接入技术进行了比较.

ADSL was described briefly. It is an antisyrnmetrical version of XDSL. ADSL Asymmetrical Digital Subscriber Line is a kind of internal communication method for the reconstruction of the existing phone networks, also the most popular communication technique. Finally the properties and techniques of ADSL were mentioned briefly,i, e., it has very high transmission frequencies, can directly use the original double cables to surf the Internet and make phone calls at the same time,and can exclusively share the safety and security of the Internet. Comparison was made between ADSL and other common broadband switch- in techniques.