Home / Standards / GB/T 24339.1-2009 GB/T 24339.1-2009 Abolished Railway applications - Communication,signalling and processing systems - Part 1: Safety-related communication in closed transmission systems 轨道交通 通信、信号和处理系统 第1部分：封闭式传输系统中的安全相关通信 Standard Type GBT ICS 45.060 CCS S30 Status 废止 Issue Date 2009-09-30 Implementation 2010-01-01 Responsible Dept 国家铁路局 Drafting Unit 国家铁路局