The sat-nms ACU19 contains a high power DC motor driver for every axis. By this it is possible to connect DC motors directly to the sat-nms ACU19. It is possible to adjust the high speed and the low speed of every axis via potentiometers on the rear panel. .b The limit switches have to be connected here as well for every axis. Please refer to chapter Interfaces to the antenna/ Pin descriptions for more detailed informations.