说明: Railway applications — Communication, signalling and processing systems — Safety-related communication in transmission systems. <haifeng_gu> 上传 | 大小:819kb
说明: railway applications-communication, signaling and processing systems-part2:Safety related communication in open transmission systems. <haifeng_gu> 上传 | 大小:2mb
说明: EN50159 Railway applications-communication, signaling and processing systems-Part1: Safety–related communication in closed transmission systems 欧洲开发网络完全通信标准 <haifeng_gu> 上传 | 大小:1mb