FTDI Chip USB to RS422 Adapter Board, USB-COM422-Plus1

  • RS Stock No. 687-7752
  • Mfr. Part No. USB-COM422-Plus1
  • Manufacturer FTDI Chip
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

FTDI Chip Adapter Board

The FTDI Chip adaptor board belongs to a family of communication devices. This model provides a simple method of adapting legacy serial devices with RS422 interfaces to modern USB ports. This is accomplished by incorporating the industry standard FTDI FT232R USB-serial bridge chip. The integrated electronics of the board utilise the FTDI FT232R and includes RS422 level shifters plus TXD/RXD LEDs to provide a visual indication of data traffic through the module. It uses a standard USB-B device connector for connection to an upstream host or hub port. This module requires USB device drivers used to make the board appear as a Virtual COM Port (VCP). This allows existing serial communications software such as HyperTerminal to exchange data through the board to a legacy RS422 peripheral device.

Features and Benefits

Easy plug and play installation and RS-422 device connection
Installs as a standard Windows COM port
Powered by USB port, no external power adapter required
Installs as two standard Windows COM ports
Supports Windows Server 2008, 2003, Vista, XP 2000, Linux, Mac OS X
FIFO: 128 byte transmit buffer, 256 byte receive buffer
Serial port speed up to 3Mbps
One DE-9P male connector
LEDs indicate USB Enumeration, RxD, TxD for monitoring port status and easy diagnostics
Operating temperature ranges between -40°C and 85°C


Embedded systems


ANSI/ESD S20.20:2014
BS EN 61340-5-1:2007
FCC certified

Attribute Value
Interface Function USB to RS422
Kit Classification Adapter Board
28 In stock for delivery within 3 working days
Price Each
HK$ 259.28
(exc. GST)
Per unit
1 +