The signal generator accepts 90 to 264 VAC, 47 Hz to 63 Hz, single-phase, AC mains input power. The signal generator is intended for Installation Category (Over Voltage Category) II. To connect the MG362x1A to the power source, plug the female end of the power cable into the input line voltage receptacle on the rear panel as shown in Figure: Rear Panel Power Connection. Then plug the male end of the power cord into a three-wire power line outlet. Turn on the rear panel power button. This automatically places the signal generator in operation (front panel Operate LED on).