USB Single and Multi-Port Serial Adapters

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Quatech USB Serial Port Adapters are easily configured to enable the continued use of legacy devices without making any changes to software applications written for them. The adapters enumerate themselves as standard COM ports making the USB interface completely transparent to software. With signal and power optical isolation, these adapters are ideal for harsh, demanding environments and provide a cost effective means of protecting valuable systems. All Quatech USB serial adapters are compatible with the latest Windows Operating Systems (Windows 7, Vista, etc.).

Highlighted Products

SSU2-400I

SSU2-400I
1 port, RS-232/422/485
USB Serial Adapter
with Optical Isolation

  • USB 2.0 based design
  • 3000V Optical Isolation
  • 15KV ESD immunity
  • Surge and short circuit protection
  • Auto detect between RS-485 and RS-422
  • Device enumerates itself as standard port(s)
  • Full-duplex or half-duplex modes
  • Bus powered, no external power required
DSU2-400

DSU2-400
2 port, RS-232/422/485
USB Serial Adapter

  • USB 2.0 based design
  • 2 independent ports
  • Each port configurable for RS-232, RS-422 or RS-485
  • Device enumerates itself as standard ports
  • Full-duplex or half-duplex modes
  • Auto detect between RS-485 and RS-422
  • Bus powered, no external power required

QSU2-100

QSU2-100
4 Port, RS-232 USB
Serial Adapter

  • USB 2.0 based design
  • 4 independent ports
  • Device enumerates itself as standard ports
  • Full modem control and hardware and software flow control
  • Bus powered, no external power required
QSU2-540IS

QSU2-540IS
4 port, RS-232/422/485
USB Serial Adapter

  • Industrial USB 2.0 Serial Adapter
  • 3000V Optical Isolation
  • 4 independent serial ports
  • Device enumerates itself as standard comm ports
  • Full modem control and hardware and software flow control

More USB Serial Connectivity Products

USB Single Port Serial Adapters


  • Allows RS-232 line signal bi-directionally convert
    to RS-422 or RS-485 standard
  • Power 3KVdc isolation protection
  • RS-232 Signal isolation protection
  • Over current protection
  • RS-422/485 signal provide surge protection

USB Multi-Port Serial Adapters


DSU2-400
  • Fastest USB Serial Adapters
  • USB to RS-232/422/485
  • Software selectable MEI
  • 2-8 independent ports
  • Optional surge suppression
  • USB 2.0,1.1,1.0 compatible

Quatech Networking Products

  • ABDG-SE-IN5410
    1 port RS-232/422/485 (MEI) serial interface
  • ABDG-SE-IN5420
    2 port RS-232/422/485 (MEI) serial interface
  • ABDG-ET-IN5010
    1 port 10/100 Ethernet interface
  • Extended operating temperature (-40°C to +85°C)
  • Plug-n-play serial to 802.11 connectivity and ethernet to 802.11 connectivity
  • Enterprise class wireless security (WPA2-Enterprise, WPA, WEP,EAP)
  • Variable DC power supply (5-36 VDC)
  • Airborne SpeedLink roaming for enhanced connection reliability
  • Airborne Management Center included
  • ABDG-SE-DP501 1 port units with RS-232 or RS-232/422/485 (MEI) interface
  • ABDG-ET-DP501 1 port Ethernet interface
  • Advanced security protocols, including WPA2 Enterprise
  • Plug & Play LAN and Internet Connectivity
  • Extended operating temperatures
  • Low power consumption
  • Software configurable 802.11b/g interface
  • Compact form factor
  • Integrated external antenna
  • Built-in web server
  • Advanced utilities for discovery, configuration and management
  • Airborne Management Center software included
  • Network enable any RS-232, RS-422 or RS-485 serial devices for remote access and control
  • 1, 2, 4, or 8 independent RS-232 or software-selectable RS-232/422/485 serial ports
  • Remote Web browser-based configuration, administration and troubleshooting
  • Auto-detecting 10/100 Mbps Ethernet with built-in TCP/IP
  • Raw TCP and IntelliSock™ TCP socket services for custom applications
  • Surge suppression package available
  • Solid metal case suited for rugged industrial environments
  • Virtual COM drivers for Windows (NT4/2000/XP/Vista/7) & Linux

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Quatech, Inc.
5675 Hudson Industrial Parkway
Hudson, OH 44236
800.553.1170     +1 330.655.9000
sales@quatech.com      www.quatech.com