The USB port is a standard USB-B female connector and the RS-485 connections are made by a 3-way screw terminal connector. The Power status and Tx/Rx states are indicated by three onboard LEDs. The 4 ...

[André Sarmento] needed to connect a computer to an RS-485 bus. 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.