ETSI EN 300 132-3-1-2012 环境工程(EE).电信和数据通讯(ICT)设备输入处的电源接口.第3部分:运行于整流电源,交流电源或相当于400 V直流电源.第1子部分:相当于400 V直流电源
Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 3: Operated by rectified current source@ alternating current source or direct current source up to 400 V; Sub-part 1: Direct curren