... output current range:0.3-8V Characteristics:1.DC power input type:24V~50VDC2.Output current:1.3A-4.5A3.Mircostepping:1 ... ,B+,B-:Stepping motor other winding5,PUL+,PUL -:Stepping pulse input+5V (Rising edge effective , rising edge duration >10μS)6 ... ,DIR +,DIR-:Stepping motor direction input, voltage level touched off,high towards, low reverse7,ENA+,ENA ...