User Manual
Instruction Manual
1
Introduction
Thank you for purchasing the ICUSB422IS USB to RS422/485 Converter
with Isolation. This unit is an intelligent expansion module that connects
to a PC or server via the Universal Serial Bus (USB), providing high-
speed serial connectivity. The RS485 port supports Auto-Tranceiver-Turn-
Around, to support applications that control the transmitter driver. With the
included software kit, it is an ideal solution for the most critical applica-
tions.
Features
Compatible with both USB 2.0 and USB 1.1 •
Wall mountable design•
Optical Isolation and Surge Protection (2500 Vrms) •
Provides one RS422/485 port while powering the device through USB •
RS-485 mode supports Auto Transceiver Turn Around (ATTA) •
RS422/485 Baud rate up to 921.6 Kbps •
Supports 4-wire RS422 and 2-wire RS485 applications •
Supports DB9 and terminal block connector •
Package Contents
1 X 6ft USB A to B Cable •
1 X Driver CD •
1 X USB to RS422/485 Converter •
1 X User Manual •










