<p>Specific:</p> <p>Serial Protocol: RS485 \/ RS422</p> <p>Specification: USB 2.0; EIA\/ RS485 and RS422 standard</p> <p>Chip: </p> <p>Max Baud Rate: 921600bps</p> <p>Max Distance (RS485\/422 End): 984ft (300m) at 921600bps, 1968ft (600m) at 38400bps, 3937ft (1.2km) at 9600bps;</p> <p>USB-bus powered, no external power needed.</p> <p>Automatic hand-shaking protocol supported.</p> <p>Item Length: 1.5 Feet</p> <p>Important Note:</p> <p>The USB end must be connected to PC or . Other USB devices like digital camera, scanner and printer is not allowed.</p> <p>To avoid reflections on longer cables it is necessary to use appropriate termination resitors (120, 1\/4W).</p> <p>Please do NOT connect the adapter to RS422\/ RS485 device install the driver on your computer or .</p> <p>4 Kinds of Working Modes: Asynchronous</p> <p>Point to point \/ four wires full duplex;</p> <p>Point to multiple point \/ four wires full duplex;</p> <p>Point to point \/ two wires half duplex;</p> <p>Point to multiple point \/ two wires half duplex.</p> <p>Applications:</p> <p>Factory automation system</p> <p>Distributed control system</p> <p>LED display equipment</p> <p>PLC control and management</p> <p>CNC management</p> <p>SCADA(Supervisory control and data acquisition)</p> <p>Medical treatment\/medication automation</p> <p>Building automation</p> <p>Check on work attendance</p> <p>Human resource management.</p> <p>Measuring instruments and monitoring system</p> <p>Data collection</p> <p>Process contro</p> <p>material: plastic</p> <p>Color as shown</p> <p>Package Contents:</p> <p>1 x USB to Serial Converter Cord</p> <p>1 x RS422 RS485 Serial DB9 to Terminal Block Adapter</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>