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ＡＤＳＬ是一种新的网络技术，速度快、使用方便、接入费用低，它为网络接入提供了一种新的具有竞争力的方式。从ＡＤＳＬ技术入手，简要地介绍ＡＤＳＬ的工作原理。然后，结合ＡＤＳＬ参考模型，详细探讨了ＡＴＭ ｏｖｅｒ ＡＤＳＬ的实现方案。ＡＤＳＬ调制解调器是实现基于ＡＤＳＬ技术的ＡＴＭ接入的关键设备，以ＡＤＳＬ调制解调器的一般框架为模型．分析了它的功能和工作过程。最后，以ＴＮＥＴＤ２０００Ｐ为例，从硬件和软件两方面对ＡＤＳＬ调制解调器的实现作了详细的介绍。
ADSL is a new type of network technology that is fast, easy to use, and low in access costs. It provides a new and competitive way for network access. Start with ADSL technology, a brief introduction to the working principle of ADSL. Then, with the reference model of ADSL, the realization scheme of ATM over ADSL is discussed in detail. ADSL modem is the key equipment to realize ATM access based on ADSL technology, taking the general framework of ADSL modem as a model. Analyzed its function and work process. Finally, taking TNETD2000P as an example, the realization of ADSL modem is introduced in detail from the aspects of hardware and software.