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StarTech.com ICUSB422IS Industrial USB to RS422/RS485 Serial Adapter with Isolation
StarTech.com·MPN: ICUSB422IS

StarTech.com ICUSB422IS Industrial USB to RS422/RS485 Serial Adapter with Isolation

The StarTech.com ICUSB422IS Industrial USB to RS422/RS485 Serial Adapter provides essential connectivity for legacy systems, featuring circuit isolation to protect sensitive equipment and supporting data rates up to 880 Kbit/s.

  • Industrial-Grade Isolation: Protects sensitive industrial controls and devices from electrical surges, preventing costly damage and ensuring continuous operation.
  • Universal USB Connectivity: Integrates seamlessly with modern Windows, macOS, and Linux systems, extending the lifespan of critical legacy serial equipment.
  • Flexible Serial Interface: Supports both RS-422 and RS-485 protocols, enabling versatile connections to a wide range of industrial and commercial devices.
  • Robust Metal Housing: Engineered for durability in demanding environments, ensuring reliable performance and reducing maintenance requirements.
$166.32
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Manufacturer Warranty Included

Product Overview

The StarTech.com ICUSB422IS is an industrial-grade USB to RS422/RS485 serial adapter, engineered to bridge legacy serial devices with modern computing platforms. It features a USB B connector for host connection and a DB9 port or terminal block for RS-422/RS-485, supporting data transfer rates up to 880 Kbit/s.

Designed for demanding environments, this adapter includes essential circuit isolation, protecting sensitive equipment from electrical interference and surges. Its broad operating system compatibility, including Windows, macOS, and Linux, ensures frictionless integration into diverse IT ecosystems, extending the utility of existing serial infrastructure.

  • Core Functionality: Provides a reliable USB to RS422/RS485 serial port, enabling continued operation of essential legacy industrial and commercial equipment.
  • Circuit Isolation: Protects connected sensitive controls and devices from electrical damage, preventing costly repairs and ensuring system uptime.
  • Broad OS Support: Compatible with Windows, macOS, and Linux kernels, ensuring versatile deployment across various enterprise computing environments.
  • Flexible Connectivity: Offers both DB9 and terminal block connections for RS-422/RS-485, adapting to diverse serial device interfaces.
  • Operational Value: Extends the lifecycle of existing serial-based systems, providing a cost-effective solution for integrating older hardware with modern IT infrastructure.

This adapter is an essential tool for maintaining and integrating critical serial devices into contemporary business operations.

Technical Specifications

1Performance & Business Impact
Data Transfer Rate0.88 Mbit/s
Circuit IsolationYes
Serial ProtocolsRS-422, RS-485
Host InterfaceUSB 2.0
2Connectivity & I/O
USB ConnectorUSB B Male
Serial ConnectorDB9 Female, Terminal Block
Cable Length1.8 m / 5.9 ft
3Physical & Environmental
Dimensions (W x D x H)64 mm x 118 mm x 23 mm / 2.5 in x 4.6 in x 0.9 in
Weight0.18 kg / 0.4 lbs
ColorBlack
Chassis MaterialMetal
Operating Temperature0 to 55 °C / 32 to 131 °F
Operating Humidity5 - 95% RH
4Lifecycle, Warranty & Compliance
Warranty2-Year StarTech.com Warranty
In-Box Contents1x USB to RS422/RS485 Adapter, 1x USB A to B Cable, 1x Driver CD, 1x Instruction Manual
Compatible Operating SystemsWindows (98SE to 11, Server 2003-2019), macOS (10.6-13.0), Linux Kernel 3.0.x+
Shipping Weight0.39 kg / 0.86 lbs

Full Specifications

Manufacturer Data
Ports & interfaces5
Connector 1USB B
Connector 2RS-422/485
Connector 1 genderMale
Connector 2 genderFemale
Cable length1.8 m
Power1
Input voltage5 V
Performance3
Product colourBlack
Data transfer rate0.00088 Gbit/s
Compatible operating systemsWindows CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019 macOS 10.6 to 10.15, 11.0, 12.0, 13.0 Linux Kernel 3.0.x+
Weight & dimensions4
Width64 mm
Depth118 mm
Height23 mm
Weight180 g
Packaging content2
Quantity per pack1 pc(s)
Cables includedUSB
Operational conditions1
Operating temperature (T-T)0 - 55 °C
Packaging data1
Package width45 mm
Logistics data1
Products per master (outer) case50 pc(s)
Downloads1
Product Datasheet
Download

What This Solves

Connecting Industrial Automation

In manufacturing and processing plants, legacy PLCs and SCADA systems often rely on RS-422/RS-485 for communication. This adapter enables modern USB-equipped computers to monitor and control these critical industrial processes, ensuring operational continuity.

Manufacturing facilities, industrial plants, process control centers, logistics warehouses

Integrating Building Management Systems

Many commercial buildings utilize RS-485 networks for HVAC, lighting, and security access control. The adapter allows IT teams to interface with these building management systems from standard workstations, streamlining facility operations and maintenance.

Commercial property management, facility operations, smart building integrators, campus infrastructure

Modernizing Point-of-Sale Peripherals

Retail and hospitality environments frequently use RS-232/RS-485 for peripherals like receipt printers, barcode scanners, and credit card terminals. This adapter provides a reliable bridge for connecting these essential POS devices to contemporary USB-only systems, preserving existing hardware investments.

Retail chains, hospitality groups, restaurant franchises, small business storefronts

Key Features

Circuit Isolation

Protects connected sensitive controls and devices from electrical surges and ground loops, preventing costly damage and ensuring continuous operation.

RS-422/RS-485 Serial Support

Enables versatile connectivity to a wide array of industrial and commercial serial devices, extending the utility of existing hardware.

Data Transfer Rate up to 880 Kbit/s

Ensures efficient and reliable communication for industrial control, data acquisition, and legacy peripheral operations.

Broad OS Compatibility (Windows, macOS, Linux)

Provides frictionless integration into diverse IT environments, reducing deployment complexity and supporting varied workstation setups.

Durable Metal Housing

Offers enhanced protection against physical wear and tear in demanding industrial or commercial settings, extending product lifespan.

Compatible With

Industrial Control Systems

PLCs, SCADA systems, factory automation equipment, CNC machines

Building Automation

HVAC controllers, access control systems, security cameras, lighting management

Point-of-Sale (POS) Systems

Receipt printers, barcode scanners, credit card readers, cash drawers

Specialized Medical Devices

Diagnostic equipment, lab instruments, patient monitoring systems

Frequently Asked Questions

What is the primary benefit of circuit isolation in this adapter?

Circuit isolation protects your connected RS-422/RS-485 devices and your host computer from electrical surges, ground loops, and transient voltages. This prevents damage to sensitive equipment, ensuring system stability and reducing repair costs.

Can this adapter be used with both RS-422 and RS-485 devices?

Yes, the StarTech.com ICUSB422IS adapter is designed to support both RS-422 and RS-485 serial protocols. It provides flexible connectivity options for a wide range of industrial and commercial serial equipment.

What operating systems are compatible with this USB to serial adapter?

This adapter is compatible with a broad range of operating systems, including Windows CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11, Windows Server (2003-2019), macOS (10.6-13.0), and Linux Kernel 3.0.x+.

Does this adapter require external power?

No, the StarTech.com ICUSB422IS adapter is USB bus-powered, drawing its operational power directly from the host USB port. This simplifies deployment by eliminating the need for an external power adapter.

Warranty & Returns

Manufacturer Warranty

2 Year Warranty

Warranty is provided directly by the manufacturer and covers defects in materials and workmanship under normal use.

Return Policy

Returns subject to manufacturer approval

Hardware returns are governed by the manufacturer's return policy. Some products are non-returnable or subject to restocking fees. Defective items are handled under the manufacturer warranty. Contact Zent Networks before initiating any return.

$166.32