YDT 1070-2000 接入网远端设备Z接口技术要求

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1、yu中华人民共和国通信行业标准YD/T1070-2000接入网远端设备Z接口技术要求ZInterfacerequirementofaccessnetworkremoteequipment2000-06-27发布2000-09-01实施中华人民共和国信息产业部发布YD/T1070-20加目次前言····················。············...........................................................................................111范围·.................

2、.....................................................................................................12引用标准··········································，·，·································，·。····‘················，···..⋯⋯13定义和符号及缩写···································，·，·····························

3、·······。··················一‘·‘·‘13.1定义··················································································································⋯⋯13.2缩略语·...................................................................................................................14接入网远端设备Z接口技术要求·

4、............................................................................‘一““14.1电气特性及传输性能要求·····················，·····················。·。················‘········。········⋯⋯“”’14.1.1阻抗特性············································，，······················。·····，··········。·。·。··········....

5、.⋯⋯14.1.2对地阻抗不平衡·········，···············································。···················。···················一24.1.3接口点的相对电平····4····························，·························································⋯⋯24.1.4回声和稳定性·............................................................

6、...........................................34.1.5损耗频率失真”···························。，·，···················。················，···························⋯⋯34.1.6增益随输入电平的变化························，·，·，·························，···························，·，··⋯⋯44.1.7群时延和群时延失真·....................

7、..........................................................................44.1.8衡重杂音·.............................................................................................................64.1.9总失真·................................