Low Cost Serial Device Servers

M0 Series Serial Device Servers are the upgraded version of T24 Series, which have additional functions of DNS, DHCP, bulit-in webpage, network upgrade and USR Cloud.


  • 1 or 2 serial port supporting RS232/RS485
  • 10/100M auto-sensing Ethernet
  • -25 to 75° operating temperature range
  • Socket modes support TCP server/TCP client/UDP/Virtual COM
  • TCP Server mode supports up to 4 simultaneous connections
  • Static IP or DHCP
  • Support serial configure protocol, network configure protocel and WEB page configure

Affordable Serial RS232/485/422 to Ethernet Converter

USR-TCP232-306 Serial RS232 RS485 RS422 Ethernet Converter is a cost-effective solution for serial data communication.

  • RS232/RS484/RS422 (not use simultaneously)
  • 5-36v DC
  • HTTPD client mode, sends serial data in HTTP format

Serial RS232 to Ethernet Converters, DHCP/DNS

USR-TCP232-302 is a low-cost serial device server,whose function is to realize bidirectional transparent transmission between RS232 and Ethernet.

  • 1 RS232 serial port
  • Low Voltage range of 4.75-7v DC
  • Data Rates range of 600~230.4kbps

Cost-Effective RS485 to Ethernet Converter with Built-in Webpage

Cost-Effective M0 Series - [USR-TCP232-304] is widely used in the solution of serial data networking communication.

  • RS485 serial port
  • 5V DC
  • Client connection: 1 to 16 in TCP Server Mode