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时间:2017-08-01
《YDT1254-2003 接入网技术要求--基于时分双工的以太数字用户线系统(TDD-EDSL):可变长度帧传送模式.pdf》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ICS33.040.50M42YU中华人民共和国通信行业标准丫D/T1254-2003接入网技术要求—基于时分双工的以太数字用户线系统(TDD-EDSL);可变长度帧传送模式Accessnetworktechnicalspecification-TDDbasedEthernetDigitalSubscriberLinesystemvariablelengthframetransmissionmode2003-01-28发布2003-01-28实施中华人民共和国信息产业部发布.www.bzxzk.com.丫D/T1254-2003目次前1言范围
2、···········································································································⋯⋯‘···⋯⋯1,1工口门j‘4‘U规范性引用文件··································································································....⋯⋯1缩略语·································
3、···························,·······,········,···,···,·························,··⋯1系统应用参考模型·················································。········.··.····.··.··..···.·.·············.⋯⋯2传送能力··················································································
4、·····························⋯⋯3接口·····················································································································⋯⋯56.1业务节点接口··························································································......⋯⋯56.2用户网络接口···
5、···········································································.·····.·······.···⋯⋯56.3线路接口(U一接口)······························································..........................66.4POTS分离器要求································································
6、·····························⋯⋯8系统功能特性·········································································································⋯⋯97.1ETU发送器参考模型············································································..........⋯⋯97.2收发器功能特性················
7、·············································································⋯⋯97.3设备功能特性·······································································.......................⋯⋯17l7l8收发器训练及协议···························,················...............................
8、...................⋯⋯8.1上电初始化·····················································
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