ETSI ETS 300 132- 1-1996 设备工程(EE).通信设备输入处的电源接口.第1部分:运行于来自直流(dc)电源的交流电(ac)
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