RS485 Serial 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. By way of setting web-page or software, USRIOT Serial to Ethernet Converter can realize serial data and TCP/IP data package transparent transmission.

  • RS485 port, low-cost solution
  • 5V DC
  • Client connection: 1 to 16 in TCP Server Mode

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).



System Information
ProcessorTI Cortex-M0
Port Number
Interface StandardRJ45
Rate10/100 Mbps MDI/MDIX, auto switch between cross and direct connection
Protection2KV electromagnetism isolation, shell insulation blocking
Network ProtocolIP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP
Receive BufferSend: 6K bytes, receive: 4K bytes
Port Number1
Interface StandardRS-232: DB9 female port
Data Bits5, 6, 7, 8
Stop Bit1, 2
Check BitNone, Even, Odd, Space, Mark
Baud Rate600 bps ~ 230.4 Kbps
Flow ControlNull
BufferReceive: 800 bytes
Virtual Serial(USR-VCOM)Windows 2000 or higher (32 bit/64 bit)
ConfigurationComputer set-up software, serial command, built-in webpage
Basic Parameter
Basic Parameter
Size71 x 60 x 25 mm
Operating Temp.-25 ~ 75°C
Storage Temp. -40 ~ 105°C, 5 ~ 95% RH
Input VoltageDC 4.75 ~ 7V
Working Current150mA @ 5V
Warranty2 years
Accessory5V1A power supply

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