802.11 a/b/g/n Wireless Serial Device Server

The SD-320AN serial device server provides the easiest method to connect, access, and monitor RS232 serial devices over a Wi-Fi network.

Top Features:

  • Dual band IEEE 802.11a/b/g/n support
  • Easily connect and share RS-232 serial devices on wireless networks
  • Enterprise security support
  • Access, monitor and control equipment over Ethernet or Wi-Fi
  • Multiple Serial Port Modes and Wireless Modes for maximum flexibility in any environment
  • Optimized for roaming
  • Support for Windows, MAC and Linux
  • Easily connect and share RS-232 serial devices on wireless networks. Access, monitor and control equipment over Ethernet or Wi-Fi.
  • Multiple Serial Port Modes
    • Serial Port Emulation Mode: The included Silex SX-Virtual Link software precisely emulates a serial port (or COM port) connection on a computer operating system, and then redirects the packets over the network to the serial port of the SD-320AN.
    • Raw TCP Connection Mode: This mode makes it possible to possible to directly communicate with a serial device via TCP application program using a TCP socket API.
      SD-310AN Diagram
    • eCable Mode: Serial data can be tunneled over the network between devices connected to SD-320AN.
      eCable Mode
  • Wireless Modes
    • Wireless Station (Client) Mode: The SD-320AN can connect to an existing 802.11a/b/g/n Wi-Fi network. The dual band capability and enterprise security ensure a stable connection to even the most advanced wireless networks.
    • Wireless Access Point Mode: The SD-320AN can create a wireless network so any wireless client (station) can easily make a direct secure connection.
  • SD-320AN additional features:
    • Dual band IEEE 802.11a/b/g/n support on the SD-320AN allows communication in the 2.4 GHz and 5 GHz bands. Radio interference in the commonly used 2.4 GHz band can be avoided by utilizing 5 GHz.
    • SD-320AN provides optimized roaming based on a signal strength algorithm between wireless access points ensuring maximum uptime for the connection.

Model number


Wired LAN


Wireless standard



Note: 802.1x is only available in wireless station (client) mode


Device interface


Environmental condition


  • Temperature: -20 ~ + 70 ℃
  • Humidity: 20 ~ 90% RH


  • Temperature: 0 ~ + 50 ℃
  • Humidity: 20% ~ 80% RH (non-condensing)

Maximum power consumption

2.5W (DC5V/0.5A)

Regulatory Compliance

VCCI Class B, FCC Class B, ICES-003 Class B, CE Class B

Included items

Body, AC adapter, setup guide, rubber feet, wireless LAN antenna (SD-320AN only), GPL inquiry sheet, warranty card

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