RS-232 Serial Adapter for Android Devices


Main Features:



  • Android USB 2.0 Full-Speed Host to industry standard RS-232 DB9M serial port
  • Supports UART interface with RX, TX, RTS and CTS
  • RX buffer size 5512 bytes; TX buffer size 256 bytes
  • Supports baud rates up to 460.8kbps, 921.6kbps optional
  • Use with any Android platform supporting Android Open Accessory Mode (typically 3.1 or above)
  • ±15kV ESD protection on USB data lines and all RS-232 signals
  • Status and fault LEDs including external power, charging status, and USB status
  • Supports USB charging for Android devices
  • Type A USB connector features industrial strength high retention design
  • Latching +5V external power input connector with external regulated power supply
  • Industrial operating temperature (-40°C to +85°C) standard
  • A hard line wired connection eliminates security concerns associated with Wi-Fi and other radio frequency solutions
  • RoHS Compliant


Factory options:

  • RJ12 female for RS-232, including GPS signals on RJ12 and J5 connector
  • RJ45 connector with Cisco pinout
  • RJ12 connector
  • Baud rates up to 921.6kbps
  • RoHS Available. Please contact us for ordering information




Communications Interface:

  • I/O Connection: DB9M (optional RJ45 or RJ12)
  • Serial Port: RS-232 signals RX, TX, RTS, CTS, GND
  • Serial Data Rates: 460.8kbps (921.6kbps available), 115.2kbps without RTS/CTS flow control
  • ESD Protection: ±15kV on all signal pins
  • Character Length: 7 or 8 bits
  • Parity: Even, Odd, None, Space, Mark
  • Stop Interval: 1 or 2 bits
  • Flow Control: RTS, CTS

Bus Type:

  • USB 2.0 Full-Speed
  • USB 3.0 Compatible
  • USB 1.1 Compatible

A type A USB connector with a high retention design that complies with the class 1, Div II minimum withdrawal requirement of over 3 pounds of force (15 Newtons) is used.


  • Operating Temperature Range: -40°C to +85°C
  • Storage Temperatur Range: -40°C to +85°C
  • Humidity: 5%-95%, non-condensing
  • Board Dimension: 1.900 x 3.750 inches


  • External AC/DC 5V regulated adaptor is included
  • External Power: +5VDC @ 1A external power required
  • USB Charging Power: Up to 500mA provided to Android device

Connector Pin Assignments:

The ANDROID-232 has a 9-pin DB9 connector provided for I/O connections. Connector pin assignments are listed below.

    ANDROID-232 2

Regulatory Compliance:

  • This product is designed to be in full compliance with CE requirements.









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Contact Details

EPS-Tech Ltd.

Industrial park, Tzur-Igal
2 Bazelet St,

Israel, 44862

Tel: +972-9-749-8585
Fax: +972-9-749-8686
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.