ETSI PRETS 300 132-1-1996 设备工程(EE).电信设备输入处的电源接口.第1部分:由来自直流(dc)源的交流电(ac)运行
Equipment Engineering (EE); Power Supply Interface at the Input to Telecommunications Equipment; Part 1: Operated by Alternating Current (ac) Derived from Direct Current (dc) Sources