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4 Ports RS485 Ethernet Modbus Gateway USR-N540-MQTT

  • $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)
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    4 Ports RS485 Ethernet Modbus Gateway USR-N540-MQTT

    USR-N540 is 4 serial Ports Secure Serial Device Server which can connect RS485 serial devices to the TCP/IP network. It supports bi-directional communication.

    ● Independent 4 RS485 ports. (3-in-1 Serial port RS232/RS485/RS422 Optional)
    ● 5-36V wide voltage input.
    ● Modbus RTU to Modbus TCP, Modbus Polling, Modbus to JSON
    ● Flow control XON/XOFF
    ● Secure Client Operation Mode: TCPS, HTTPS. MQTTS
    ● SSL/TLS Encryption
    ● Modbus RTU Master, Edge computing
    ● Hardware watchdog, automatically restarts when the device goes down.

    4-port RS485 Serial Device Server


    System Information
    Processor ST Cortex-M7
    Basic Frequency 400MHz
    Flash 128K+4M 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,https,ARP,ICMP,Web socket,httpsd client
    Receive Buffer Max 16k bytes buffer
    Port Number 4  RS485 Ports, can work at the same time)
    Interface Standard RS-485: 2 wire (A+,B-) half-duplex
    Data Bits 7,8
    Stop Bit 1,2
    Parity Bit Even,Odd
    Baud Rate 600bps ~ 921600 bps
    Flow Control  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 9 ~ 36V
    Working Current 53mA @ 12V
    Power <1W



    [Setup Software] H7 Version


    [Datasheet] USR-N540-H7-4 Datasheet

    [AT Command Manual]ARM Cortex-M7 Series AT command manual V1.0.0


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