PIN 1& 2 is 48 volts,,, ,3 & 4 GND-2 ,,PIN 5 IS + 5 VOLTS,, PIN 6 IS STEP ,,PIN 7 IS DIRECTION,,,PIN 8 IS HERE ..Can someone please tell me what signal is pin 8 ? I would like to connect the drive to 48 volts and see if the motors work .I will connect the step and direction to my break out board and try driving it with Mach 3