Low-cost serial RS485 to TCP/IP Ethernet converter

Communication Expert of Industrial IOT
Low-cost serial RS485 to TCP/IP Ethernet converter
Low-cost serial RS485 to TCP/IP Ethernet converter
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Price: $24.00
Availability: In Stock
Model: USR-TCP232-304
Manufacturer: USR IOT
Average Rating: Not Rated

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Unique Features

1.DHCP and DNS function

2.Built-in webpage for configuration

3.Support HTTPD Client

Important point: It does not support Modbus RTU to Modbus TCP

Serial Device Server Introduction

This is a serial RS485 to Ethernet server,used for data transparent transmission. USR-TCP232-304 is a low-cost serial device server, whose function is to realize bidirectional transparent transmission between RS485 and Ethernet. USR-TCP232-304 is internally integrated with TCP/IP protocol. User can apply it to device networking communication.

Serial Device Server Feature

  • Can work in LAN, also across the Internet by gateway, switchws, router
  • Restore factory defaults by hardware and software
  • In TCP Server mode, max 16 TCP Clients can connect with it
  • Work mode: TCP Server, TCP Client, UDP Client, UDP Server
  • Heartbeat packet, ensure connection reliable, can be defined
  • Register packet, check connection status and use as custom packet header
  • Support firmware upgrade via network
  • Query IP address through serial setting protocol
  • Global unique MAC address bought from IEEE, user can define MAC address
  • Support virtual serial port and provide corresponding software USR-VCOM
  • Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS

Serial Device Server Parameter


Speed rate 10/100Mbps, MDI/MDIX
Protection 1.5KV electromagnetic isolation
Buffer TX: 6K byte, RX: 4K byte
Interface RS485 *1
Standard Terminal: A+, B-, GND
Baud rate 600-230.4K
Data bit 5, 6, 7, 8
Parity bit None, Odd, Even, Space, Mark
Buffer RX: 800 byte
Protection ESD 2KV
Power input
Voltage 4.75-7 V
Type DC jacker
Working current 150mA (average) @ 5V
Working tempreture -25 - 75 °C
Storage tempreture -40 - 105 °C
Storage humidity 5-95%RH (no condensation)
Dimensions 71*60*25 (mm)
Certification CE, FCC, ROHS, WEEE
Download files USR-TCP232-304

Serial Device Server Images

Packing List

  • RS485 to Ethernet converter *1
  • Power adapter *1
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