I have a V BOX 7. I think it is 36 volts. Used for moving a 24 inch actuator. The directions says it can be used to automatically move the actuator by DiSEqC codes. The incoming coax cable goes to the V Box and then to the receiver. I don't use it like that but it clearly states that it is possible. You must also have the normal 4 wires for power and sensor. Supposedly it would work as a small dish motor works, moving the dish automatically when you change satellites.
I think I misread your question. It can move the dish to your pre-programmed positions. That is not exactly like USALS.