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| YD/T 1017-1999 Network node interface for the Sychronous Digital Hierarchy (English Version) |
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Detail of YD/T 1017-1999
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Introduction of YD/T 1017-1999
本标准规定了同步数字体系（SDH）网络节点接口（NNI），提供了STM-N信号在同步数字网络节点接口所需的规范。
本标准适用于公用电信网中以光纤为基本手段的传输网，包括省际千线、省内干线和中继网。接人网、专用电信网以及无线传输网也可参照使用。
Contents of YD/T 1017-1999