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WIZ120SR is not discontinued, but we do not recommend it for new designs.

Technical support for this product has officially ended.

Please check WIZ752SR-120 instead.


WIZ120SR-EVB is a evaluation board for WIZ120SR.

WIZ120SR is an embedded module based on WIZnet W5100 & ARM Cortex-M3. WIZ120SR is the protocol converter that transmits the data sent by serial equipment as TCP/IP data type, and converts back the TCP/IP data received through the network into serial data to transmit back to the equipment. WIZ120SR is able to communicate two serial equipments at the same time by supporting 2 serial ports(3.3V LVTTL).

Hardware Specification

WIZ120SR Module

  • TCP/IP : W5100
  • PHY : Embedded in W5100
  • MCU : ARM Cortex-M3 (STM32F103C8T6)
  • Serial : 2 UART (3.3V LVTTL)

Base Board

  • Module Interface : 1×14 2mm Pin Header (Female)
  • Ethernet Interface : RJ-45 (RB1-125BAG1A, Transformer integrated)
  • Serial Connector : 2x D-SUB, 9PIN (Right Angle, Male)
  • Power : DC Jack mounted (Outer 3.5 Ø, Inner 1.35 Ø)


  • UTP LAN Cable (2M), WIZ108SR-CBL (connection cable between module & base board)

Base Board Interface