Chinese Standard: GB/T 15940-2008

Basic multiplexing structure for synchronous digital hierarchy signals

中国通信标准化协会

本标准规定了在网络节点接口（NNI）的同步数字体系（SDH）信号的复用结构。
本标准适用于公用电信网和专用电信网中的SDH系统和采用SDH复用结构的通信系统，如SDH传输设备、SDH数字微波通信设备等。

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