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W5500S2E-S1 Product Overview

Supported Languages


W5500S2E is a series of industrial grade serial to Ethernet module. It supports TCP server, TCP client, UDP and Modbus modes. The maximum baud rate of the serial port is 1.152Mbps. W5500S2E supports WIZS2E ConfigTool (Configuration Tool for Windows®), web page and AT command for configuring.

W5500S2E integrated with the hardwired TCP/IP protocol Ethernet chip W5500. This enables a faster, stable and secure Ethernet connectivity. With reference schematic(s) and guideline(s) in this user manual, user can simplify the design and reduce development time.


  • Baud Rate can be configured to any standard value from 2Kbps to 1.152Mbps
  • 10/100 Mbps Ethernet interface
  • Support TCP server, TCP client and UDP operating modes
  • Flexible data packaging condition in serial interface
  • Smart Ethernet cable detection and keep alive features
  • As DHCP client to automatically acquire IP address
  • As DNS client to lookup domain name
  • Support Modbus RTU/ASCII to Modbus TCP/UDP
  • Support Modbus over TCP/UDP
  • Support NetBIOS allows user to identify module’s name
  • Support user password authorization for security
  • Support serial AT command configuration method
  • Built-in web server for browser and remote configuring
  • Provide user-friendly configuration tool program (WIZS2E ConfigTool)
  • Support local and remote firmware upgrade


  • Serial interface: 3.3V TTL x1: TXD, RXD, GND
  • Default Serial communication parameters
  • Baud Rate: From 2Kbps to 1.152Mbps
  • Data Bit: 7, 8
  • Stop Bit: 0.5, 1, 1.5, 2
  • Parity: None, Even, Odd
  • Flow Control: None, CTS/RTS
  • Supporting software: Tool: WIZS2E ConfigTool
  • Configuration methods: WIZS2E ConfigTool, Web based (via web browser), Serial AT command
  • Power supply: DC3.3V
  • Size: L x W x H (mm)
    • W5500S2E-S1: 34.00×24.00×12.40
    • W5500S2E-Z1: 44.45×31.75×15.75
    • W5500S2E-R1: 44.45×31.75×23.00
  • Operating temperature: -40℃ ~ +85℃ (Industrial Grade)
  • Storage environment: -40℃ ~ +85℃, 5 ~ 95% RH