USB connector and CN5 Screw terminal provided for PC side power supply input and CN4 for output side power supply 7 to 36V DC. The Opt coupler and inverter require power supply at both PC side and output side. All outputs are optically isolated and inverse, all inputs are optical isolated and can be used as emergency switch, limit switch, home switch and feedbacks. The board has been tested with MACH3 CNC software. Optically isolated parallel port break out board designed for Hobby CNC, Routers and Motion controller, This Board is an easy solution to drive stepper Motor driver through PC parallel port, The Board is compatible with various CNC software specially made for LPT port data output.
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