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 0: Overview
环境工程;电信和数据通信(ICT)设备输入端的电源接口;第3部分:由400 V以下的整流电源、交流电源或直流电源操作;第0子部分:概述