USB to RS-485 / RS-422 Converter Key benefits Install without opening the PC or powering down: the external converter attaches to a PC and is hot-pluggable, so you do not need to remove the chassis or turn off the computer to add serial connectivity. Convert USB to industrial serial ports: enables a PC to communicate directly with RS-485 or RS-422 devices using a USB connection. Add one high-speed serial port: the converter provides one extra high-speed RS-485 or RS-422 port for device expansion. Isolated power and signals for reliability: supply and signal lines are fully isolated to improve noise immunity and protect connected equipment from interference and ground loops. Features and attributes Function: USB to RS-485 / RS-422 conversion for serial device communication. Compatibility: connects PC USB interface to RS-485 or RS-422 devices. Installation: external, plug-in device that does not require opening the computer or shutting it down for installation. Performance: provides a high-speed serial port suitable for data communications over RS-485 or RS-422 links. Safety and reliability: full isolation between supply and signal to reduce interference and increase operational stability. Practical applications Industrial automation: connect PLCs, motor controllers, or Modbus RTU sensors to a PC for configuration, monitoring, or data collection without modifying the host PC. Building and access control: link RS-485 based access panels, HVAC controllers, or lighting systems to management software via USB. Test and measurement: attach serial instruments and data-loggers using RS-422/RS-485 interfaces to a laptop or workstation for diagnostics, logging, and analysis. What it solves Eliminates the need to open or power down a PC to add serial connectivity. Provides a straightforward USB-based bridge to legacy and industrial serial devices. Reduces communication errors and equipment risk with isolated power and signal lines for better anti-interference performance. Simple to use, reliable in operation, and designed to expand a PC’s connectivity to RS-485 and RS-422 devices without intrusive installation.