【Easy To Use】The RS485 passive interface converter has a built-in voltage clamp circuit, which has the ability to resist surges, and the product is small and light, easy to carry and easy to use. 【No Jumper Design】Compared with similar passive products, the USB computer network adapter can be used as an RS-232 to RS-485 converter, Rs232 to RS-422 converter, no jumper switch is needed, just connect to the corresponding network connection method. , Which can work adaptively. 【Compatible With RS-232, RS-485, RS-422】The RS485 converter adapter is compatible with RS-232, RS-485 and RS-422 standards. It can convert a single-ended RS-232 into a balanced RS-485 or RS-422 differential . 【Wide Range Of Applications】RS-232 to 485/422 converters are widely used in attendance machines, IC card toll systems, industrial automation control systems, access card control systems, parking lot systems, automatic banking systems, bus toll systems, canteens for sale, highway toll gate systems Wait. 【Quality Service】If you have any questions about this product, you can us at any time. We have a professional customer service team that will provide you with the best service.