RS422, specifications and in depth tutorial - Lammert Bies
RS-422 - Wikiwand
RS422 RS485 USB Serial Cable Adapter - Serial Cards & Adapters | StarTech.com
How Far and How Fast Can You Go with RS-485? - Application Note - Maxim
USB to RS422 or RS485 Serial Port Converter Adapters Cable 15Kv-ESD Interference Support 256 Nodes Converter for Windows 7 XP Length 1.5m Cable Length 1.5m | Walmart Canada
What is the difference between RS-232, RS-422, and RS-485? | Optcore
RS485 - Basic info
USB 2.0 to Serial RS422/RS485 Cable
FTDI USB to RS485 RS422 Serial Adapter Converter Cable with FTDI FT232RL Chip 1.5m Length : Amazon.co.uk: Computers & Accessories