摘要
首先说明甚高速数字用户线(VDSL)的由来,其次说明铜线用户线性能的影响,然后解释VDSL的业务分类和VDSL的参考模型。
The origin of VDSL is explained at first,then the effect of subscriber line performance is given,VDSL service sort and reference model are explained.
出处
《邮电设计技术》
2003年第6期1-3,共3页
Designing Techniques of Posts and Telecommunications