Standard No.:	YD/T 1017-1999
English Name:	Network node interface for the Sychronous Digital Hierarchy
Chinese Name:	同步数字体系(SDH)网络节点接口
Chinese Classification:	M14    Communication network transmission system interface
Professional Classification:	YD    Professional Standard - Telecommunication
Issued on:	1999-04-18
Implemented on:	1999-10-1
Status:	superseded
Superseded by:	YD/T 1017-2011 Network node interface for the synchronous digital hierarchy（SDH）
Superseded on:	2011-6-1
Language:	English
File Format:	PDF
Word Count:	21000 words
Price(USD):	630.00
Delivery:	via email in 1~5 business day

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。