4 Ports Serial RS232 RS485 RS422 to Ethernet Converters

4-port Serial to IP Converters USR-N540

4 serial ports, RS232/RS485/RS422 can be chose in any combination
Industrial solution: TI Cortex M4 processor, fast and stable

Basic Function of 4-port Serial to IP Converters

Industrial Hardware Design

Industrial solution TI cortex-M4:
4 Ports Serial to IP Converters USR-N540

Electrostatic protection ESD

Air: ±15KV
Contact: ±8KV

Electrical fast pulse train-EFT

Anti-surge: 4KV ( 8/20us )
Pulse group: 1.5KV 100KHZ

Watch dog

Hardware watchdog design,
never crash in 24 hours

 serial to IP converters USR-N540

Each one can worked as RS232, RS485, RS422
Baud rate: 600bps~ 230.4Kbps
Hardware flow control: RTS/CTS
Software flow control: XON/XOFF
Flexible packet of serial data

Serial Port Switching Among RS232/RS485/RS422

Works at RS232 port by default
Please use converter plat for RS422 or RS485 port
and select corresponding port via webpage or setup software
or manually adjust under dial switch mode

Power supply supports Anti-reverse

Wide voltage: 5~36V

Function Structure

Work mode

TCP Server

Serial to IP converters USR-N540 listen on the setting port
and waits for a TCP client connection.
The data which the serial ports sent out transparently
transmit to all connected client via Serial to IP converters N540.

TCP client mode

Serial to IP converters USR-N540 initiate a TCP lint to the set IP address.
If the connection fails, USR-N540 will keep trying to reconnect until it succeeds.
Once the link is successful, the data will be transparently
transmitted between PC and serial device in bi-directional.

UDP mode

Serial to IP converters USR-N540 sent the data to designated IP /Port.
If the connection fails, USR-N540 will keep trying to reconnect until it succeeds.
Meanwhile, USR-N540 listens the port and forwards
all data received to serial device.

httpsD Client

Modbus Serial to IP converters USR-N540 support serial data transmitted to designed server in httpsD way.

WebSocket

Support WebSocket Sever，
Built Websocket link with devices by Websocket of webpage HTML5
Data transmission between built-in webpage and serial port in bi-directional
Custom webpage and websocket are acceptable
Achieves the functions of displaying data in real-time

Virtual Com Software

Special function

Synchronized baud rate

Change the baud rate, data bit, check bit
and stop bit dynamically via network commitment

Serial Port/ Network heartbeat package

Network heartbeat package: Serial to IP converters USR-N540 notify the server
that it is active by sending Heartbeat Package regularly,
and maintain normal network links with the server.
Serial Port heartbeat package: The servers notify the serial device
that it is active, and the user can also actively grab the sensor data.

Modbus Serial to IP converters USR-N540 Support modbus gateway

More function

Customize webpage, Synchronized baud rate,
net printing, registration package, cloud

Application

[ Unattended Weighing ]

Modbus serial to IP converters USR-N540 connect to the gateway and
the control center remotely controls the switch ON/OFF via Ethernet .
Meanwhile, USR-N540 also support unified use of unattended weighing
equipment like license plate snapshot serial port camera,
weighing instrument, LED promoting screen, card reader,
vehicle induction loop, receipt printer and so on.