Description: USB to RS485 / RS422 converter allows you to easily connect RS485 or RS422 devices directly to the USB port of your laptop. Provide 600W surge protection and 15kV ESD isolation protection on the signal pin to protect expensive and usually sensitive control equipment from electrical damage. The processor chip (FTDI-chipset FT232) and I / O automatic conversion circuit with high performance and quality make the RS 485 to USB converter one of the most reliable dongles in the market. USB serial RS-485 RS-422 adapter cable Support WindowsXP 10, 8, 7, Linux, Mac etc; Plug and play, no power required. There is no conflict between IRQ and COM port, because the port does not need any additional IRQ, DMA and memory as system resources; RS485 for Half duplex and RS422 for Full duplex communication. Specification: Interface Compatibility:RS422/RS485 Standard Baud rate: 300bps to 3000000bps Indication LED's for Power, TX and RX No IRQs, DMA or required; No IRQ Conflicts Built in Dual Core: US. CO2102 + SP485 Automatic send data control. Auto detection of data speed; Zero delay automatic transmission Automatic hand-shaking protocol supported Support multiple terminals up to 256 RS-485 or RS-422 devices Transmission distance: up to 1200 meters for RS-485/422 end Working modes: asynchronous; point-to-point or point-to-multipoint; 2-line half duplex and 4-line full duplex. Application fields: Factory automation system, Distributed control system, Other 485/422 serial device wireless network, LED INFO display equipments, PLC control and management, SCADA, measuring instruments and monitoring system, CNC management, Building automation, Check on work attendance/ Human resource management. Size Chart: Adapter length: 3.5 cm/1.38 inch Height: 5.9CM/2.32inch Package Includes: 1 Piece USB to RS-422 RS-485 Adapter Cable