光纤传输几乎是目前大容量长距离传输系统所使用的唯一技术方式。
At present, in high capability and long distance transmission system, the technology of fiber transmission is almost the only choice.
介绍了基于MPEG - 4压缩技术、SDH光纤传输技术和大容量硬盘存储技术的电视监控系统在城市轨道交通中的应用问题。
Introduces the issues on application of CCTV system based on the MPEG-4 compression, SDH optical transmission and large capacity hard disc storage technologies in urban rail transportation.
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