One of the enhancements that are brought by USB-MC CNC motion controller is the hardware MPG jogging mode.
Watch video guide that has comparison of software MPG jogging modes of Mach3 software package with hardware MPG jogging mode that is supported by USB-MC motion controller. It is shown in detail how to connect Manual Pulse Generator (MPG) and how to setup Mach3 software and USB-MC motion controller plugin.
NOTE: Described function is also awailable for all Ethernet and USB line of Audioms Automatika motion controllers.
http://www.audiohms.com/en/blog/item/167-usb-mc-mpg-jogging-en#sigProId431fc6ab86
Video tutorial
Audioms Automatika doo Support team