SDH is a kind of comprehensive information network Technique which managed by uniform TMN together with multiplex, line transmission and cross collection .
SDH是一种将复接、线路传输及交叉连接功能结合在一起并由统一网管系统进行管理操作的综合信息网络技术。
参考来源 - 重庆联通楼宇SDH光传输网络和保护方式的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
多路传输技术：多重信号可以以较少的线路传输。
Complex Transmission Tech: differential signal in fewer channels.
该默认值导致 DB2 加密通过线路传输的用户 ID 和密码。
This default causes DB2 to encrypt the user IDs and passwords that are sent across the wire.
介绍了在线监测光纤数字通信线路传输性能的测试子网方法和测试结果。
A method of conjugate measuring network for on-line transmission performance monitoring of optical fiber digital communication is introduced here.
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