Ready to Ship
Fast dispatch
In stock

304 RS485 to TCP IP Server RS485 to Ethernet Converter Upgrade Firmware via Network

1-9 Units
>=10 Units
Min. Order
1 Unit
Choose your specifications
Company Information

Jinan USR IOT Technology Limited

CN Manufacturer, Trading Company
Response Time
Response Rate:
US$ 70,000+
7 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
Learn More

Quick Details

Model Number: USR-TCP232-304
Brand Name: USR
Place of Origin: Shandong China
Interface: RS485
Warranty: 2 years
Size: 71 x 60 x 25 mm
Voltage: DC 4.75 ~ 7V
Current: 150mA
Operating Temp: -25 ~ 75&deg;C
Storage Temp: -40 ~ 105&deg;C, 5 ~ 95% RH
Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP
Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client
Certification: CE ROHS FCC
Selling Units: Single item
Single package size: 3X2X1 cm
Single gross weight: 0.5 KG
Package Type: Each equipment is packed independently and then put into a large box.
Welcome to Minisite




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.

Unique Features

1.DHCP and DNS function

2.Built-in webpage for configuration

3.Support HTTPD Client

4.RS485 serial port

5.5V DC

6.Client connection: 1 to 16 in TCP Server Mode



  • 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




USRIOT Company