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 Ruggedized USB to Serial Converters

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The first truly “rugged” USB to serial converter

US Prices 
CDN Prices

Privacy and Security

These industrial-grade, isolated, USB to serial converters add two or four RS-232/422/485 ports to your USB only PC. Built to rugged specifications, the USR602 and USR604 feature 2 kV Portto- Port Isolation. This means that your upstream PC is isolated from downstream serial devices and downstream serial devices are isolated from each other and the upstream PC. Ideal for harsh environments, they feature heavy-duty metal enclosures (with panel and DIN rail mounting options), high ESD protection, shock and vibration testing, and wide operating temperatures.

Features and Benefits

  • High Retention USB Connectors -- 3.4 lbs-force (15 N) pull force tested with standard USB cable
  • Rugged Metal Case designed for long life in harsh environments
  • 2 kV Port to Port Isolation therefore all connected devices are isolated
  • Wide Operating Temperature -- built for extremes
  • Shock, Vibration, & Drop Tested -- built tough for tough environments
  • High ESD Protection -- 15 kV Air, 8 kV contact

Industrial • Instrumentation • Utilities • Laboratories


  • USB Standards – USB 1.1 & 2.0
  • Upstream USB Port – Type B high retention (3.4 lbs-force withdrawal) – tested with standard USB cable
  • Downstream Serial Ports – DB9 male
  • Isolation – 2 kV port-to-port
  • USB Speed – high speed (480 Mbps)
  • Serial Data Rate – 921.6 Kbps
  • Power – 10 to 48 VDC, dual input with terminal block or locking barrel power supply
  • Operating Temperature– -40 to 80°C
  • Mounting – DIN and Panel Mount Brackets included
  • Shock Tested – 50 g
  • Vibration Tested – 4 g
  • Drop Tested – 10 drops to sides, corners, edges
  • Modbus compatible

USR602 Diagram

Model No.

Ruggedized USB to Serial Converter
Datasheet     Quick Start Guide     Manual     Software     Photo

Ruggedized USB to Serial Converter
Datasheet     Quick Start Guide     Manual     Software     Photo


Model No.
din rail power supply 

DIN rail mount power supply 24VDC, 1.0 A output power
Datasheet     Photo
Accessory List    
Med PS

Power Supply 12VDC, Medical Grade - US, EU, UK
Datasheet     Photo
USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027