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ID: 1182510
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Converter that provides easy communication between the RS232 and RJ45 Ethernet interface. Configurable via web page or AT commands. USR-DR301

Available quantity: 8
Kamami is the official distributor of USR converters. All products of this brand in our offer are original and come directly from the manufacturer.

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14 days for return

Each consumer can return the purchased goods within 14 days


Converter that provides easy communication between the RS232 and RJ45 Ethernet interface. The device can work as a TCP server, TCP client, UDP server, UDP client or HTTPD client and is configured using the web page or AT commands. Supports Modbus RTU and Modbus TCP. The converter has built-in protection against reverse polarity and ESD protection. The converter can be mounted on an industrial DIN rail.


  • 10/100M Auto-MDI/MDIX Ethernet interface
  • Indicators to monitor the status of communication and work
  • Available operating modes: TCP Server, TCP Client, UDP Server, UDP Client, HTTPD Client
  • Modbus RTU support
  • Configurable via web page, AT commands, serial protocol and network protocol, provides a configuration protocol that can be integrated into your own software
  • Supports DNS domain name resolution, configurable DNS server
  • Supports DHCP, auto-obtained IP address or static IP address
  • The firmware can be updated over the network
  • It supports a protocol similar to RFC2217
  • Comes with a default MAC address that can be customized to suit your needs
  • Software provided: module configuration software, TCP/UDP test tool, VCOM virtual serial port software
  • Ethernet:
    • Connector: RJ45
    • Communication speed: 10/100Mbps
    • Interface protection: 2 kV electromagnetic isolation
    • Protocols: IP, TCP, UDP, ARP, ICMP, DHCP, DNS, HTTPD client
  • RS232:
    • screw connector
    • Transmission speed: 600 bps to 460.8 kbps
  • Voltage: 5 to 36 V (5 V recommended)
  • Operating current: 86.5mA (at 5V)
  • Power Consumption: <1W
  • Reverse polarity protection, ESD protection, surge protection
  • Operating temperature: -25 to 85°C
  • Storage temperature: -40 to 105°C
  • Dimensions: 71 x 60 x 25mm

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