ETSI EN 300 132-2-2016 环境工程(EE);电信和数据通信(ICT)设备输入处的电源接口;第2部分:由-48V直流(dc)操作(V2.5.1)
Environmental Engineering (EE); Power supply interface at the input to telecommunications and datacom (ICT) equipment; Part 2: Operated by -48 V direct current (dc) (V2.5.1)