... Input: 12V to 36 VDCPhase Current: adjustable from 1.5 A to 5A(1.5A,2.0A, 2.5A,3 ... .0A,3.5A,4.0A,4.5A,5.0A) Resolution: 1/2, 1/8, 1/16 ... 15°C--40°C , humidity : RH<90% Input mode: monopulse and dipulse compatible I/O Port Connection:AC,AConnect 20 to ... Optical-coupler. High quality with Surface-mount Tech. sw_4AXIS_7A_001 CNC 4 Axis Stepper motor Driver ROUTER,MILL , 7A MACH3 KCAM4 EMC2 + ...