USR-TCP232-306 RS232 / RS485 / RS422 Serial to Ethernet Server

Communication Expert of Industrial IOT
USR-TCP232-306 RS232 / RS485 / RS422 Serial to Ethernet Server
USR-TCP232-306 RS232 / RS485 / RS422 Serial to Ethernet Server
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Price: $35.80 $34.80
Availability: In Stock
Model: USR-TCP232-306
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User Manual:

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Introduction of Serial to Ethernet Converter

USR-TCP232-306 is a RS232 / RS485 / RS422 to Ethernet server for remote access serial electronic devices. By connecting USR-TCP232-306 to serial based equipment, user can easily offer Ethernet networking capability as a standard feature. So equipment can be accessed and controlled over the Internet network.


USR-TCP232-306 serial to Ethernet converters / Adapters is easy to use. It is based on ARM processor and internally integrated with TCP/IP protocol, integrate an embedded web server, 10/100Mbps TX Ethernet port 2KV ESD for RS485 / RS422 and Magnetic isolation for hardware protection. USR Serial device server can be configured by using a standard web browser, or USR setup software. This high performance networking serial to TCPIP server enables engineers spend little time to add networking function to products.


This RS232 to Ethernet converter have 6 KByte sending buffer of network, 4 KByte receive buffer of network and 2 KByte receive buffer of serial, which makes the communication more stable and safe.

Features of Serial to Ethernet Converter

  • Built in Web Server / web browser for configuration
  • One port with three choice: RS232 / RS485 / RS422
  • Virtual COM software provided
  • User can modify the webpage
  • HTTP Client: send data as HTTP format automatically
  • Support DHCP client: automatically obtain an IP address and query IP address
  • DNS address can be modified
  • User Defined MAC address
  • Synchronous and adaptive serial port baud rate
  • Registration packet: identified header can be added to packets to check connection status
  • Heartbeat packet: can be sent to serial or network periodic. To ensure connection is reliable, end the dead link

Working Modes of Serial to Ethernet Converter

Serial Device Server USR-TCP232-306 can work as TCP Client, TCP Server, UDP Client and UDP Server Mode.

1) In TCP Client Mode: Client connects Server automatically. User should configure the TCP Server’s IP address and Port.

2) In TCP Server Mode: The Max Client number can be modified from 1 to 16. By default, Client number is 4.

3) In UDP Client Mode: serial data will be sent to a fix IP address/port which you appointed.

4) In UDP Server Mode: serial data will be sent to last source IP/Port.

Parameters of Serial to Ethernet Converter

Parameter Value
Input Voltage DC 5 ~ 36V
Input Current 116mA (aver) /5V, 53mA (aver) /12V
Certificate CE (EMC+LVD), FCC, ROHS ,WEEE
Size   98.0 x 86.0 x 24.5 mm
Operating Temp. -25 ~ 75°C
Storage Temp. -40 ~ 105°C, 5 ~ 95% RH (no condensation)
Interface RS232 RS485 RS422
Network Protocol IP, TCP, UDP, ARP, ICMP, DHCP, DNS, HTTPD Client
Packing list USR-TCP232-306 *1, 12V1A Power Adapter, Serial Cable

Application of Serial to Ethernet Converter

Building intelligent devices with remote control capability. You can use USR serial to Ethernet / LAN converter into any electronic product for applications as below:

  • Industrial automation control for data transmission
  • Remote diagnostics, record and troubleshooting
  • Security monitoring, CCTV, entrance guard system, Building automation system
  • Power management
  • Environmental monitoring, temperature and humidity monitoring
  • Logistic transportation supervision and location

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