The optical line protection system (OLP) is a long-distance optical transmission network production system, which has a very important practical value.
光线路保护系统是一种基于现代通信毫秒级光开关为基础的具有重要实践意义的长距离光传输网络保护系统。
The optical line protection system (OLP) is a long-distance optical transmission network production system, which has a very important practical value.
光线路保护系统是一种基于现代通信毫秒级光开关为基础的具有重要实践意义的长距离光传输网络保护系统。
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