Serial RS232 RS485 RS422 to Ethernet Converter

USRIOT Serial to Ethernet Converter, also known as Serial to Ethernet Server or Serial Device Server, which can realize bidirectional transparent transmission between RS232/RS485/RS422 and Ethernet. USR-TCP232-306 Serial to Ethernet Device Server is a cost-effective solution for serial data communication.

  • RS232/RS485/RS422 (not use simultaneously)
  • Wide power supply 5-36v DC
  • HTTPD client mode, sends serial data in HTTP format

Work Mode

TCP Server
Serial device server monitors the set port and waits for a TCP client connection.
Data from the serial device will transmit to all successfully-connected via serial device server.

TCP Client mode
Serial device server will initiate TCP connection to the destination IP address that configured by the user and serial device server will continuously try to reconnect if establishing TCP connection unsuccessfully.
If the serial device server establishes TCP connection to TCP Server successfully, it can realize bidirectional data transparent transmission between TCP Server and the serial device.

UDP mode
Serial device server will transmit serial data from serial device to target network device by UDP connection.
Serial device server will listen to port and transmit all received data to serial device.

HTTPD Client
Supports HTTP Client mode which can transmit serial data to the HTTP server in HTTP format(GET/POST).



Work VoltDC 5.0~36.0 V
Work Current116mA@5V/53mA@12V
Ethernet Port10/100Mbps auto switch between cross and direct connection
Baud rate600-230.4K bps
Serial PortRS232*1 / RS485*1 / RS422*1
Can’t be used at one time
Network ProtocolIP, TCP/UDP, ARP, ICMP, IPV4
IP ModeStatic IP, DHCP
DNSUser-defined DNS server address
ConfigureSoftware/Webpage/AT command
Work ModeTCP Server/TCP Client/UDP Server/UDP Client
RFC2217Supports resemble RFC2217
Httpd ClientSupports
Connection NumberConnection number with client can be randomly set from 1 to 16 under TCP server mode
Network BufferSend: 6Kbyte, Receive: 4Kbyte
COM BufferReceive: 2Kbyte
Avg. Transmission Delay<10ms
SoftwareVirtual-COM, USR-Cloud, Setup software provided
Packing mechanism4 bytes of packing time, 400 bytes of packing length
CertificateCE & FCC & Rohs
Reliability level2KV Electromagnetic isolation
Size98.0*86.0*24.5 mm(L*W*H)
Work Temp-25~75°
Store Temp-40~105°
Work Humidity5%~95% RH
Store Humidity5%~95% RH
PackageStatic Foam

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