A simple converter can be sourced online, but the only thing he could find locally that was even close was a USB to RS-232 converter. He used that component to craft his own USB to RS-485 bridge.

There was a time when if you bought a USB mouse, in the box was also an adapter ... for a 9-pin RS232 serial port. Those mice from a decade or more ago would have contained the software to ...

Serial data converters are used to interconnect two different serial standards, such as RS232 to RS422, USB to RS232, etc ... communication capabilities with hardware flow control, software flow ...

The DSX-USB Communications Interface is a simple yet rugged USB converter ... an RS-232 output including DTR and a simultaneous RS-485 4 wire output. This module is protocol independent and can be ...