Wired Serial Device Server

  • Easily connect and share RS-232 serial devices on wired networks
  • Access, monitor and control equipment over Ethernet
  • Multiple Serial Port Modes for maximum flexibility in any environment
    • Easily connect and share RS-232 serial devices on wired networks. Access, monitor and control equipment over Ethernet 
    • 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-300.
      • 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-300.
        eCable Mode
      • Wired Mode: The SD-300 is equipped with an autosensing 10/100 Ethernet port. SD-300 is wired only.


Model number


Wired LAN


Environmental condition


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


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

Maximum power consumption

2.25W (DC5V/0.45A)

Regulatory Compliance

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

Included items

Body, AC adapter, setup guide, rubber feet,  GPL inquiry sheet, warranty card