1. The 19 series power plugs are two parallel trapezoidal sockets. It is recommended to use two power cords greater than or equal to 10A.

2. When powering on the machine, first plug in the two power cords, and then turn on the two power cords at the same time through the socket switch; when turning off the power to the machine, turn off the power through the switch, and then unplug and plug the power cord.

3. If the two power cords cannot be turned on and off at the same time, when powering on the machine, first plug in AC1 on the outside and then AC2 on the inside; when powering off the machine, cut off the AC2 on the inside first, and then off AC1 on the outside.