《TBT2675-2003450mHz同异频单工列车无线调度设备技术要求和试验方法》.pdf

ICS 45.020 S 7.1 TB 中华人民共和国铁道行业标准 TB/T 2675-2003 m o c . 450 MHz同/异频单工列车无线调度 w 设备技术要求和试验方法 x f The specifications and test methods for 450 MHz same/ different-frequency simplex train radio dispatching equipment z b w. w w 2003-10-31发布 2004-04-01实施 中 华 少味民共和 国铁 道部 发布 TB/T 2675-2003 目 次 前 言· Ul 1范 围· 1 2规范性引用文件··，··。·····，··········，············，·········，······················，，······················，，··…1 3 术语和定义 ·····································································，··························…… 1 4标准试验条件·····，································，·····························，，···‘·········……，.，… 2 m 4.1环境大气条件···········，······················································，················……，··…2 4.2标准试验信号· 3 o 4.3标准日工作循环条件···········，······················，·，·································，·········……4 4.4基本电源的标准条件····························································，······················……4 c 4.5标准设备端口负荷条件··················，·····················，，·······，··