摘要
本文介绍地铁1号线延伸线PCM系统2Mbit/s自动切换系统。该系统将地铁各个重要专业的信息集中在某一2Mbit/s中传输,在技术上对该2Mbit/s采用CUDI TMX 30 1+1系统,从而保证重要传输通道在发生故障时瞬间不中断。
This article introduces the 2M bit/s port automatical switch system which is adaptable to the PCM system of the extension of Metro No. 1 line. The information coming from each important Metro department is collected by this system, then transmits through a certain 2M bit/s port. The CUDI TMX 30 1 + 1 system is adopted for this 2M bit/s port, therefore, the important transmission channel will be ensured prevent from immediate interruption when the accident occurs.
出处
《地下工程与隧道》
1999年第1期41-42,48,共2页
Underground Engineering and Tunnels
