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| YD/T 1239-2002 Access Network Technical Specifications-Very-high-speed Digital Subscriber Line (English Version) |
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Detail of YD/T 1239-2002
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Introduction of YD/T 1239-2002
本标准规定了适用于一对普通电话双绞线的甚高速数字用户线（VDSL）系统的参考模型、接口要求、功能要求、性能要求、管理要求、供电要求、安全性要求、及基于单载波（SCM）和基于多载波（MCM）的VDSL收发器技术要求等。利用该系统，在电话双绞线上可同时提供普通电话业务（POTS）和数据业务，或ISDN业务和数据业务。本标准适用于公用电信网的VDSL设备，也可供专用电信网参考使用。
Contents of YD/T 1239-2002