浅谈石长线通信系统构成特点

PRELIMINARY TALKING ABOUT STRUCTURAL CHARACTERISTIC OF COMMUNICATION SYSTEM FOR SHIMEN-CHANGSHA RAILWAY

本文结合石长铁路通信工程 ,介绍了石长线 SDH- 1 55同步传输系统的构成方式及其设计特点。采用环形方式构成环路传输网 ,并设置调度实回线转换功能板装置 ,从而保证调度电话通信不中断。

Combined with the communication engineering works for the Shimen Changsha Railway, the paper introduces the structural mode of SDH 155 synchronous transmission system used in the Shi Chang Railway and its design characteristics. The circular circuit transmission network constructed according a ring mode has been adopted, and a dispatching real loop exchange function installation has been established in order to guarantee the continuity of the dispatching telecommunication.