Serial Protocol: RS485 / RS422 Specification: USB 2.0; EIA/TIA RS485 and RS422 standard Chip: Max Baud Rate: 921600bps Max Distance (RS485/422 End): 984ft (300m) at 921600bps, 1968ft (600m) at 38400bps, 3937ft (1.2km) at 9600bps; USB bus powered, no external needed. Automatic handshake protocol supported. Item Length: 1.5ft Important Note: The USB end must be connected to a PC or . Other USB devices like digital camera, scanner, and printer are not allowed. To avoid reflections on cables, termination resistance (120, 1/4W) is necessary. Do NOT connect the adapter to the RS422/ RS485 device until you have installed the driver on your computer or . 4 types of working modes: Asynchronous to / four wires full duplex; to multiple / four wires full duplex; to / two wires half duplex; to multiple / two wires half duplex. Applications: Factory automation system Distributed control system LED INFO display equipment PLC control and management management SCADA (Supervisory Control and Data Acquisition) processing/medication automation Building automation Check attendance at work Personnel management. Measuring instruments and monitoring systems Data acquisition Process control Material: Plastic Color as shown Package Contents: 1 x USB to Serial Converter Cable 1 x RS422 RS485 Serial DB9 to Terminal Block Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.