USB to RS485 RS422 Serial module Converter
Cable Internal Chip: CH340
RS485: A+, B-, NC, NC, GND
RS422: TXD+, TXD-, RXD+, RXD-, GND LED Light prompts TXD and
RXD Singnals Length: 1.5M Typical Applications USB to serial RS485 level converter. Upgrading legacy peripherals to USB. Interface Microcontroller UART or I/O to USB. Interface FPGA or PLD to USB. USB Instrumentation PC interface. USB industrial control. USB password protected file transfers.
Note: The first time use the USB to RS485 adapter on your PC, your must install VCP dirver, For the driver download and install, please
peference links:
https: //www. wch-ic. com/search? spm=a2g0o. detail. 1000023.1. 6520cSj7cSj7dE&t=all&q=CH340