USB-COM422-PLUS-2 FTDI, USB-COM422-PLUS-2 Datasheet - Page 2
![no-image](/images/no-image-200.jpg)
USB-COM422-PLUS-2
Manufacturer Part Number
USB-COM422-PLUS-2
Description
MODULE, DEV, USB-RS422, 2 COM PORT
Manufacturer
FTDI
Type
Developmentr
Datasheet
1.USB-COM422-PLUS2.pdf
(24 pages)
Specifications of USB-COM422-PLUS-2
Mcu Supported Families
FT232R, FT2232, FT232BM
Kit Features
Works With USB 1.1 & 2.0 Host And Hub Ports, FIFO
Svhc
No SVHC (18-Jun-2010)
2.0 Host And Hub Ports, Fifo
4KB Transmit Buffer, 4KB Receive Buffer
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Document Reference No.: FT_000135
USB-COM422-PLUS2 Datasheet
Version 1.1
Clearance No.: FTDI#103
1
Introduction
1.1
Functional Description
The USB-COM422-PLUS2 is a USB to a dual interface RS422 level serial UART adaptor incorporating
FTDI’s FT2232H Hi-Speed USB2.0 (480Mb/s) to dual serial UART interface IC device. The FT2232H
handles all the USB signaling and protocols. The adaptor provides a fast, simple way to connect devices
with an RS422 interface to USB.
USB-COM422-PLUS2 is a USB to a dual-port RS422 adapter.
The integrated electronics of the USB-COM422-PLUS2 utilise the FTDI FT2232H and includes RS422 level
shifters plus TXD/RXD LEDs to provide a visual indication of data traffic through the module.
Figure 1.1 USB-COM422-Plus2
The module uses a standard USB-B device connector for connection to an upstream host or hub port.
RS422-level signals, including modem handshake signals, are available on an industry-standard DE-9P
connector. The maximum RS422-level data rate is 10Mbps.
The USB-COM422-Plus2 module requires USB device drivers, available free from www.ftdichip.com, which
are used to make the USB-COM422-Plus2 appear as a Virtual COM Port (VCP). This allows existing serial
communications software, such as HyperTerminal, to exchange data through the USB-COM422-Plus2 to a
legacy RS422 peripheral device.
Copyright © 2010 Future Technology Devices International Limited
1