USR 304 serial RS485 to ethernet convertor, low cost, hot selling

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Price:$22.00 - $28.00
Price in USD:Details


Product Overview


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Product Description


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.



  • Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol

  • Support DNS function

  • Set parameters through webpage

  • Upgrade firmware via network

  • Auto-MDI/MDIX, RJ45 port with 10/100Mbps

  • Serial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and Space

  • Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client

  • Support virtual serial port and provide corresponding software USR-VCOM

  • Heartbeat package mechanism to ensure connection is reliable, put an end to dead link

  • User-defined registration package mechanism, check connection status and use as custom packet header

  • Under TCP Server mode, Client number ranges from 1 to 16; default number is 4

  • The global unique MAC address bought from IEEE, user can define MAC address

  • Restore factory default

  • Across the gateway, switches, routers

  • Can work in LAN, also can work in the Internet (external network)

  • Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS

  • Support customization


  • Voltage: DC 4.75 ~ 7V

  • Current: 150mA

  • Size : 71 x 60 x 25 mm

  • Operating Temp: -25 ~ 75°C

  • Storage Temp: -40 ~ 105°C, 5 ~ 95% RH

  • Interface: RS485

  • Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP 

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USRIOT Company



0.0115 s.