StarTech.com

6 ft Professional RS422/485 USB Serial Cable Adapter w/ COM Retention

Add an RS422/485 serial port to your system through USB; features COM port retention

Product ID: ICUSB422

  • USB to Straight-Through RS422/485 Serial Adapter
  • Supported baud rates from 300bps to 921.6 Kbps
  • Being able to rename devices no matter how many are plugged in
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  • Supports COM Port retention
  • Configurable port for RS422 or RS485 support
  • Supports RS-485 Auto Transceiver Turn Around by Unique Featured ATTA Hardware
  • Backwards compatible with USB 1.1
  • Integrated adapter and cable eliminates the need for additional cables
  • Two interface modes; 4 wire RS422(TxD+/-, RxD+/-), and 2 wire RS485 (DATA+, DATA-)
  • 120 OHM terminator that can be Enabled/Disabled by DIP switch
  • Transmission Echo for RS485 collision detection
$91.99 CDN
130+ In stock
In stock
CA: 25 | US: 105
130+
In stock
Where To Buy
Same Day Shipping on in-stock items from Canada if ordered by 5pm ET* Details

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Overview

The ICUSB422 6ft Professional RS422/485 USB Serial Cable Adapter with COM Port Retention lets you connect RS422 or RS485 serial devices to your USB-enabled computer. The adapter features a 9-pin (DB9) male serial connector as well as dipswitch controls for easy port configuration, and requires minimal software.

The serial adapter is USB-powered, eliminating the aggravation of requiring an external power adapter. With COM port retention, assigned port settings are saved, so you can disconnect and reconnect the adapter with virtually no configuration required on the host computer.

The ICUSB422 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

The StarTech.com Advantage

  • USB Powered - no power outlet required, and no cumbersome AC adapter to carry around
  • Supports high speed RS-422/RS-485 communication up to 921.6kbps; 400% faster than most USB to RS-232 adapters
  • COM retention saves the assigned port settings for the device, so disconnecting/reconnecting is hassle-free

Applications

Ideal for connecting serial RS422/485 devices to notebooks or tablet PC’s through an available USB port

Perfect for controlling/diagnosing manufacturing machines(CNC, Process Control Equipment, Bar Code Scanners, Serial Printers)

Security device control (key panels, cameras, card readers)

Great for Industrial programmers looking to test new code with serial devices

Adapting and expanding POS systems

Communicating with test and monitoring equipment.

Connect and program LED and Digital signage boards with serial communication ports

Technical Specifications

Warranty Information
Warranty 2 Years
Hardware
Bus Type USB 2.0
Chipset ID FTDI - FT232RL
Interface Serial
Port Style Cable Adapters
Ports 1
Performance
Data Bits 7, 8
FIFO 256 Bytes
Max Baud Rate 921.6 Kbps
Parity Even, Odd, None
Serial Protocol RS-422/485
Stop Bits 1, 2
Connector(s)
Connector Type(s) 1 - USB Type-A (4 pin) USB 2.0 Male
External Ports 1 - DB-9 (9 pin, D-Sub) Male
Software
Microsoft WHQL Certified Yes
OS Compatibility Windows® CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.6 to 10.14
Linux 2.4.x to 4.11.x LTS Versions only
Environmental
Humidity 5~95% RH
Operating Temperature 0°C to 55°C (32°F to 131°F)
Storage Temperature -20°C to 85°C (-4°F to 185°F)
Physical Characteristics
Cable Length 6 ft [1.8 m]
Color Black
Enclosure Type Plastic
Product Height 0.9 in [22.1 mm]
Product Length 1.8 in [45 mm]
Product Weight 3.5 oz [100 g]
Product Width 1.6 in [41.5 mm]
Packaging Information
Shipping (Package) Weight 0.5 lb [0.2 kg]
What's in the Box
Included in Package 1 - USB to RS422/485 Serial Adapter
1 - Driver CD
1 - Installation Guide

Compatibility

View full OS compatibility
Windows® CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10
Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016
Mac OS® 10.6 to 10.14
Linux 2.4.x to 4.11.x LTS Versions only

Certifications

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Accessories

6 ft Professional RS422/485 USB Serial Cable Adapter w/ COM Retention

Customer Reviews

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I bought a couple of these units to test Modcom RTU communications over an RS485 bus in a solar farm installation using Modscan and Modsim software with PV Powered inverter interfaces and Watts-on transducers. They work good for 2 wire. They dont have 4 wire capability. When I tested them between two laptops I had to turn off the terminators and not use the ground wire. In the field, I had to turn off the terminators, but use the ground wire. Also note the older version Windows drivers worked, but the newer drivers on the Startech.com website did not. Not sure why that was the case, but for my test bed the older drivers worked.
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