http://www.youtube.com/watch?v=qrj0VEZTdXY&feature=player_embeddedDriver microstep :
Volt max : 40v.
Curent : 3.5A .
Frequency (fOSC) : 600khz
Protect over heat .
User setup :
+ microstep : 1,2,8,16.
+ decaymode : 0%,25%,50%,100%.
+ torque : 100%,75%,50%,25%.
Break out :
+ pluse dir / 2 pluse
+ buffer + trigger pluse output .
+ 5 input opto ( home , limit , handle ..)
+ 3 output relay .( light , pump, fan..)
+ control speed inverter + dir spindle
+ Connec CPU DP25( male ) .