Working with RDC644X, RDC658X and RDC656X series, the RDT422 single end to differential signal adapter module(hereinafter referred to as signal adapter module), developed by Shenzhen Ruida Technology CO., LTD, is an adapter module with single end pulse and direction output used by the offline controller. It is a beneficial supplement to the controller for high speed servo system. Ruida offline series board card can double the speed when working with the signal adapter module, which can be compatible with differential RF CO2 lasers