2 Port Serial to Ethernet Device Server with WiFi


  • 1-port RS-232 + 1-port RS-422/485
  • As a Server, supports 4 TCP Clients connection simultaneously
  • As a Client, supports connecting with 4 TCP Servers
  • Easy installation with Windows IP Search utility
  • Simple Web browser configuration
  • Supports 802.11b/g/n and Ethernet, 2 IPs (CT-STE211W)
  • Watch Dog Function


The serial to Ethernet wireless device server (CT-STE211W) and serial to Ethernet device server(CT-STE211) provide a simple, compact solution to connect RS-232/RS-485 Serial Data communications to hardwired Ethernet networks or WiFi wireless networks.

Serial over Ethernet connections
STE211 Serial connections

It connects serial devices such as PLC, alarm sensors and PTZ camera control to IP networks. Applications include industrial/factory automation, public safety, and surveillance systems. The Serial converter is built for use in light industrial environments, featuring a compact wall-mount design (with optional DIN rail kit). It operates from 9-32VDC power supply voltages with terminal block connectors and is easy to configure through its web GUI interface.

The STE211 provides TCP Server Mode, TCP Client Mode, and UDP Mode for methods of operation. It supports manual configuration via web browser and supports various protocols including HTTP, DHCP, ICMP, and ARP.

Ordering Information

Order Code Description
CT-STE211W 1 x RS-232, 1 x RS485/422 Serial to Ethernet Wireless Device Server with power adapter
CT-STE211 1 x RS-232, 1 x RS485/422 Serial to Ethernet Device Server with power adapter
DRK04 Din Rail Kit for CT-STE211 & CT-STE211W

More Information