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    0.070 Kgs

1 Port USB to RS232 Adapter

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Document Type Revision File
Datasheet - DS_DuoEtte_v103



Download FTDI Virtual COM Port (VCP) Drivers for Windows, Mac OS and Linux



The DuoEtte is a USB to RS232 level full-handshake UART adapter, based on FTDI's FT231XS USB to full-handshake UART IC. A male DB9 (also known as DE9) connector provides the connectivity for RS232 communications and a USB-Micro B receptacle (purchased separately) provides connectivity for USB communications.

All components used are Pb-free (RoHS compliant).


Compatible with Windows 10 when using the latest drivers from the EasySync Website.




  • Provides single RS232 port on DB9 connector with easy plug & play installation
  • Microsoft Windows® WHQL-certified, Mac OS X, Linux and Windows CE device drivers
  • Windows support includes XP, Vista, Windows 7, 8, 8.1 & 10
  • Installs as standard Windows COM port which can be used with any existing application which uses a COM port
  • COM port number can be changed to any available COM port number, to support HyperTerminal, or any other serial communications software application running in Windows
  • Serial Communications Parameters
  •                Parity: None, Even, Odd
  •                Data bits: 7, 8
  •                Stop bits: 1, 2
  •                Flow control: Hardware, X-ON/X-OFF, None
  • Data transfer rates from 300 baud to 250 Kbaud at RS232 voltage levels
  • 512 byte receive buffer and 512 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput
  • LED's indicate Receive Data transfer (green) an Transmit Data transfer (red)
  • ESD protection on RS232 I/Os exceeding ±15kV IEC1000-4-2 Air Gap Discharge , ±15kV for Human Body Mode (HBM) and ±8kv IEC1000-4-2 Contact Discharge
  • ESD protection on USB lines exceeding ±2kV for Human Body Mode (HBM), ±200V for Machine Mode (MM) and ±500V for Charged Device Mode (CDM)
  • Integrated MTP-ROM for storing USB VID, PID, serial number and description strings
  • Powered from USB port so no external supply required. Low operating and USB suspend current 
  • USB 2.0 Full Speed compatible with low bandwith consumption
  • -40˚C to +85˚C extended operating temprature range
  • Latch-up Free 



DS_DuoEtte_v103 [PDF, 538.51 KB]