信息通信用240V/336V直流供电系统技术要求和试验方法
240V/336V DC power system technical requirements and test methods for information and telecommunication
2020-06-02
YD/T 2656-2013
基于240V/336V直流供电的通信设备电源输入接口技术要求与试验方法
Technical requirements and testing methods for 240V/336V direct current telecom equipment power supply unit input interface