1、The output and input signals are all processed by special high-speed chip, the signal correction, amplification, remove unnecessary interference signal, make the whole machine run more stable.2、The power supply of LPT port of the computer is isolated from the power supply of other parts to effectively isolate the computer from the machine tool. Thus further guaranteed the security and the stability. Make computer and machining data more secure3、A total of 5 input signals are communicated with the computer host, all of which are isolated by optical coupling. Among them, P11 and P12 are isolated by high-speed optical coupling, which can be used to connect the spindle code disk, or hand wheel A an4、There are 12 output signals available for use. Up to 6 axis linkage control output can be supported. You can also select only one or several of these axes to control. Some of these 12 outlets are functionally reusable. In use, an outlet can only be used5、There are 3 special relays that can support MACH3 software programming control. By controlling MACH3 software, you can control the on and off of any relay. Each relay has an on-off indicator, which is more intuitive and convenient to use. These three rel