UOTEK UT-850N USB to RS485 RS422 Converter 4.92ft

Industrial USB to Serial Adapter

The UOTEK UT-850N connects legacy RS-485 or RS-422 equipment to a modern USB-A port using a 1.5 metre cable. It supports asynchronous communication in half-duplex or full-duplex modes with automatic data-direction control. The adapter handles baud rates from 300 to 921.6Kbps and can link up to 32 devices on a single bus. Surge and ±15KV ESD protection guard the serial port in harsh environments.

Replaces Native Serial Ports

This converter replaces an onboard DB9 or PCI serial card when a PC lacks native RS-485/422 interfaces. The jump is worth it for industrial machines, PLCs or HMIs that must communicate over twisted-pair cable up to 5,000 metres at 9,600bps. USB bus power keeps the link under five metres from the host, so the adapter suits cabinet-mounted gear without an external supply.

For Field Engineers and Integrators

Technicians maintaining factory automation, building-management or SCADA systems gain a reliable USB bridge to older field devices. The wide temperature range of -20 to 75°C and humidity tolerance up to 95% suit cabinet and outdoor enclosures. Buyers needing galvanic isolation, wireless connectivity or a USB-C host interface should look at other products.