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)
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
Redundant Power Supply
Wide input voltage DC 5-36V,with reverse polarity protection
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.
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.
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.
Serial port data can be submitted to a specified server by GET or POST method
Support modbus RTU and modbus TCP protocol conversion
Support modbus multi-host polling
Virtual Com Software
Dimensions :222*122*29 mm
（L*W*H , Including terminals and mounting ears）
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
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.
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.
8 pin RJ45
10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection