cnc engraving machine mach3v2.1-l breakout board adapter 4-axls 6-axls controller

a special high speed chip is used to process the input and output (i/o) signals. the computer lpt port supplies the power individually, separating from the power supply of other parts. there are 5 input signals, communicating with the host computer, which are isolated by the optical coupling. there are 12 output signal, which is allowed to controlling output, supporting as many as 6axlslinkage. there are 3 replays, p2, p3 and p4, which can support mach3 control software programming..syi