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Home / Products / Industrial Serial to Ethernet Converters / 4 Ports RS485 to Ethernet Converters
Home / Products/ Industrial Serial to Ethernet Converters / 4 Ports RS485 to Ethernet Converters
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USR-N540-H7-4

USR-N540-H7-4

4 Ports RS485 to Ethernet Converters

4 Ports RS485 to Ethernet Converters


USR-N540-H7-4 is a 4-port RS485 to ethernet Converters. USR IOT's RS485 to ethernet Converters USR-N540 can realize bi-directional transparent transmission between RS485 and network.

● 4-port RS485 Serial to Ethernet Converters
● Power supply accepts wide voltage input range DC 9-36V
● Support TCP server/client, UDP server/client,https client, Virtual COM
● Support Modbus RTU to Modbus TCP, Modbus Polling
● Support flow control XON/XOFF
● Support 4 RS-485 Ports to TCP/IP 10/100Base-T(X) self-adaptive Ethernet interface
● Configuration via Web Server page, AT commands, and Windows Utility
● MQTT/SSL/Modbus RTU to JSON/SNMP/Telnet/Edge Computing(Special firmware, contact sales)
4 Ports Serial to IP Converters
Comparison of new and old schemes

Comparison of new and old schemes

Basic Function-transmission

Basic Function-transmission

Scheme upgrade to provide better experience

Scheme upgrade to provide better experience

Master chip adopts ST crotex-M7 core, the main frequency is up to 400Mhz,
fast processing speed, high stable and reliable performance

Multiple hardware protection

Multiple hardware protection

Redundant Power Supply

Redundant Power Supply

Wide input voltage DC 5-36V,with reverse polarity protection

Block Diagram

Block Diagram

Work mode  TCP Server

Work mode

TCP Server

The server listens to the specified port and waits for the TCP client to connect,
The data sent by the serial device will be transparently transmitted to all
successfully connected clients through the serial device server.

TCP Client

TCP Client

The serial device server initiates a TCP connection to the specified IP address.
If the connection fails, the serial server will continue to try to reconnect until it succeeds.
If the connection is successful, the server can transparently transmit data with
the serial device in two-way.

UDP mode

UDP mode

The serial device server sends the data of
the serial device to the designated IP network device.
The serial device server monitors the port meanwhile and
forwards all received data to the serial device.

HTTPD Client

HTTPD Client

Serial port data can be submitted to a specified server by GET or POST method

More features

More features

Modbus gateway

Modbus gateway

Support modbus RTU and modbus TCP protocol conversion
Support modbus multi-host polling

Virtual Com Software

Virtual Com Software

Product Details

Product Details

Dimensions :222*122*29 mm
(L*W*H , Including terminals and mounting ears)

Charging pile application case

Application case

Charging pile application case

N540 can connect the charging pile to the charging intelligent service platform to
realize two-way data transmission between the charging device and the platform.
The billing information and power usage can be viewed remotely through the
platform to facilitate operation and maintenance.

Industrial automation application case

Industrial automation application case

The application of N540 in traditional industrial scenarios can
effectively solve the problem that workers need to monitor equipment on-site,
save labor costs, and increase production efficiency and safety factors.
Data management makes the production process control more refined.

Unattended weighing

Unattended weighing

Connect the serial device server N540 to the barrier gate,
and the control center remotely controls the barrier switch via Ethernet.
Meanwhile, USR-N540 also supports unified use of unattended weighing
equipment like license plate snapshot serial port camera,weighing instrument,
LED promoting screen, RFID card reader,vehicle induction coils,
receipt printer and so on.

System Information
Processor ST Cortex-M7
Basic Frequency 400MHz
Flash 128K+4M byte
Ethernet
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
Serial
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
Software
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
More
Certificate CE,FCC,ROHS
Warranty 2 years
title update date operation

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