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介绍了SDH的帧结构和基本复用原理，在此基础上，探讨了视频信号在SDH上的传输技术。文章详细叙述了2．048Mbps的电视会议信号、34．368Mbps的视频信号和8Mbps的MPEG－2传输流复用映射进SDH帧结构的方法；SDH数字复用设备的组成和原理；最后介绍一个具有SDH接口的MPEG－2多媒体系统终端机设计实例。
The frame structure and basic multiplexing principle of SDH are introduced. On this basis, the transmission technology of video signal on SDH is discussed. The article describes in detail the method of multiplexing and mapping the video conference signal of 2.048Mbps, the video signal of 34.368Mbps and the MPEG-2 transport stream of 8Mbps into the SDH frame structure; the composition and principle of the SDH digital multiplexing device; finally, SDH interface MPEG-2 multimedia system terminal design examples.