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WIZ752SR-125 Product Overview

WIZ752SR-125 is a compact sized serial to Ethernet module using the W7500 Ethernet MCU (SoC based on ARM Cortex-M0 architecture) with External PHY(IC+). WIZ752SR-125 is a protocol converter that transmits data sent by serial equipment as TCP/IP data and converts the TCP/IP data received through the network back into serial data to the serial equipment. It complies with industrial temperature standard.

WIZ752SR-125 is compatible[1] with the WIZnet WIZ125SR S2E module. In addition, WIZ752SR-125 contains a 4-pin GPIO expansion port that can be controlled freely by the user. (analog input or digital in/out)

WIZ752SR-125 is the best fit solution to control user's serial device via Ethernet network.


  • Serial to Ethernet Module based on W7500 MCU
  • Included External PHY chip
  • Function and Hardware compatible with WIZ120SR S2E Module
    • It's not compatible configuration tool of WIZ120SR
  • Supports 2 Ports Serial(RS-232C)
    • D-Sub 9 Connector 2EA
  • 10/100Mbps Ethernet & Up to 230kbps serial speed
  • Status LED: Run, TCP connection status
  • Supports a search password
  • Configuration is possible via serial AT commands or via Configuration tool
  • Support WIZ VSP (Virtual Serial Port) program
  • Built-in Supervisor IC for improvements of Reset function stability
  • Supports Static IP, DHCP, PPPoE
  • Supports DNS
  • Operation Temperature : -40℃ ~ 85℃
  • Dimensions : 88.50(W) x 66.00(L) x 18.00(H) (Unit : mm)

Product Contents

WIZ752SR-125 Module

Ordering InformationItemQ'tyRemarks
WIZ752SR-125WIZ752SR-125 module1-

WIZ752SR-125 Evaluation Board

Ordering InformationCategoryItemQ'tyRemarks
:::CableD-SUB9-FEMALE serial cable1Data port
::::::24AWG CAT5e UTP cable1LAN cable
:::AdapterDC5V/2A Adapter1-

* It can be replaced with better components to improve the performance of the product.

  1. hardware pins