WIZ550S2E is the serial to Ethernet module using W5500 & Cortex-M0 MCU.  WIZ550SE 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.

If you use the interface board for RS232 and RS422-485, you can easily connect the module to any serial device.

  • Serial to Ethernet Module based on W5500 & Cortex-M0
  • RJ-45 mounted, Pin-header type module
  • Serial signals : TXD, RXD, RTS, CTS, GND
  • Support the configuration method of AT command & Configuration tool program
  • Configuration tool program operates on Windows, Linux & MAC OS
  • Support data communication using AT command : able to send data without re-configuring and re-boot of the module when changing the destination IP
  • Support the interface board for RS-232 and RS422/485
  • 10/100Mbps Ethernet & Max.230kbps serial speed
  • Support WIZ VSP (Virtual Serial Port) program
Hardware Specification
  • Dmension (mm) : 55(L) x 30 (W) x 23.49 (H)
  • Input Voltage : 3.3V
  • Max. Power Consumption : 179mA @ RS422 mode
  • Operation Temperature : -40~ 85℃
  • RoHS, SVHC Compliant
Pin Assignment
Ordering Information
Materials in WiKi

WIZ550S2E Datasheet WiKi Document

WIZ550S2E Programmer’s Guide

WIZ550S2E Tutorial

  • Data Communication in Static IP and TCP Server mode
  • Retrieving Webpage of ‘www.google.com’ in Dynamic IP and TCP Client mode
  • Data communication with more than two servers in Dynamic IP
  • Data communication with more than two server in Static IP

WIZ550S2E Software Download Wiki Page

  • Firmware (Binary & Source Code)
  • ConfigTool (Installation Package & Source Code)

Device Terminal Program for Windows

  • Last Update: 2015.08.06
  • Simple Configuration & Testing for WIZnet Serial to Ethernet Modules

WIZVSP Program for Windows

  • Last Update: 2017. 04. 28
  • Virtual Serial COM Port program: It can be used to change the device that is connected to the PC through the existing serial interface to control by the remote Ethernet network.
  • If you agree with the End User License Agreement for WIZVSP, you will be able to download the program and get a registration key. When registering the product with license agreement, the MAC address of the product in use and the email address of the contact person are required.