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USR IOT IoT Comms 4 Ports Serial RS232/RS485/RS422 to Ethernet Converter USR-N540

4 Ports Serial RS232/RS485/RS422 to Ethernet Converter USR-N540

  • $239.00
  • Save $30
  • (Exc. GST)

  • Available in stock

  • $ We Ship from our stock in AU (Perth) with pickup option, and Prices are Exc. GST
  • $ We Offer Quantity Discounts for Large Orders 10+ qty (Request for Quote)
  • $ We Accept Purchase Orders & Net 30 Payment for Eligible Accounts
  • 4 Ports Serial RS232/RS485/RS422 to Ethernet Converter USR-N540

    USR-N540, 4 serial port Ethernet converter which can realise transparent transmission between TCP/UDP data package and RS232/RS485/RS422 interface.

    Note: This kit includes the AU power adapter, DB9 cable, and connectors.

    Characters of USR-N540 Serial Ethernet Converter

    Industrial Solution TI Cortex M4 Solution, -40~85C
    Web Server Web socket/ Web to Serial
    Modbus Gateway Modbus RTU to Modbus TCP / Modbus Polling
    Flow Control CTS/RTS, XON/XOFF
    Protection Watchdog circuit, never cash
    ESD 8KV
    Network Network Printing
    2 network links, each serial support sending data to two servers


    Features of 4 ports Serial Ethernet Converter

    • TI Cortex-M4 kernel, industrial working temperature range and TCPIP protocol stack.
    • Auto-MDI/MDIX, RJ45 port with 10/100Mbps
    • TCP Server, TCP Client, UDP Client, UDP Server and HTTPD Client work mode
    • 4 ports can work independently at the same time
    • Can distinguish which serial port connects to the device via port number
    • Support virtual serial port and provide corresponding software USR-VCOM
    • Serial baud rate from 600bps to 230.4K bps
    • DNS and DHCP supported
    • Provide PC TCP/IP socket programming example such as VB, C++, Delphi, Android and IOS
    • Built-in web page; also can customise web page for users
    • The global unique MAC address bought from IEEE (begin with D8-B0-4C); user can define MAC address
    • Support upgrade firmware via network
    • Support keepalive, rapidly detect dead links
    • Support account and password can be used to page login and network settings
    • Support one channel Websocket, realise bidirectional transparent transmission between web page and serial 0
    • Support Modbus RTU to Modbus TCP
    • Support UDP broadcast function
    • Each serial can work as rs232,rs485 or rs422; Default port is RS232 BD9 male port
    • Four channel serial communication indicator: TX/RX, CTS/RTS, XON/XOFF
    • Support DC adapter and 5.08-2 terminal power supply
    • Reload button, one key to restore default settings
    • RJ45 with Link/Data indicator light, built-in isolation transformer and 2 KV electromagnetic isolation

    Application Field of 4 ports Serial Device Servers

    • Industrial data transmission, industrial automation
    • security and protection monitoring, public security
    • Smart home, power control, environmental monitoring, intelligent agriculture
    • Door check on work attendance system, POS system, rice selling system
    • Building automation system, power monitoring, self-service banking system, telecom machine room monitoring


      System Information
      Processor Cortex-M4
      Basic Frequency 120MHz
      Flash 512K byte

      Port Number 1
      Interface Standard 8 pin RJ45
      Rate 10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
      Protection 2KV electromagnetism isolation, shell insulation blocking
      Network Protocol IP,TCP,UDP,DHCP,DNS,HTTP,ARP,ICMP,Web socket,Httpd client
      Receive Buffer Max 16k bytes buffer

      Port Number 4 (Each port can work as RS-232, RS-485 and RS-422, can work at the same time)
      Interface Standard RS-232: DB9 pin type, RS-485: 2 wire (A+,B-), RS-422 (A,B,Y,Z)
      Data Bits 5,6,7,8
      Stop Bit 1,2
      Check Bit None, Even, Odd, Space, Mark
      Baud Rate 600bps ~ 230.4Kbps
      Flow Control RTS/CTS XON XOFF
      Buffer Send and receive 2k bytes respectively
      Protection RS-485: anti-static 2KV,lightning protection
      RS-485 Pull-up and Pull-Down Resistor 2.2 KΩ

      Virtual Serial(USR-VCOM) Windows 2000 or higher(32 bit/64 bit)
      Configuration Built-in webpage, computer set-up software, serial command

      Basic Parameter
      Size 222 x 122 x 29 mm (including shell and terminals)
      Operating Temp. -40 ~ 85°C (industry)
      Storage Temp. -40 ~ 85°C, 5 ~ 95% RH (no condensation)
      Input Voltage DC 5 ~ 36V
      Working Current 53mA @ 12V
      Power <1W

      Download Link

      User Manual

      [User Manual] USR-N540 Quick Start Guide | download
      [Datasheet] USR-N540 Datasheet | download
      [User Manual] USR-N540 User Manual | download
      [AT Command] USR-N540 AT Command Set | download

      Development File

      [Customized Webpage] USR-N540 Customized Webpage | download
      [Demo Code] TCPIP Demo Code | download
      [Config Protocol] E45&M4 Series Config Protocol V1.4 | download

      Application Software

      [USR-VCOM] Virtual Serial Software V3.7.1.520 | download
      [USR-TCP-Test] Testing Software | download
      [USR-TCP-Test_android] Testing Software | download
      [USR-M4] USR-TCP232-M4K3 Setup Software V2.3.3.97 | download

      Product Certificates

      [Certificate] M4 Series CE FCC ROHS WEEE Certificate | download


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