Product Description

ST-TCP540i
4 Ports Serial to Ethernet Servers

ST-TCP540I is a 4-port Serial to IP Converters. THE IOT's serial to IP Converters ST-TCP540I can realize bi-directional transparent transmission between RS232/RS485/RS422 and network.

4-port RS-232/422/485 Serial to IP 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
Support flow control CTS/RTS, XON/XOFF
Support 4 RS-232, RS-485/422 3IN1 serial port to 1 10/100Base-T(X) self-adaptive Ethernet interface
Configuration via Web Server page, AT commands, and Windows Utility

Technical parameters

System Information
Processor	Cortex-M4
Basic Frequency	120MHz
Flash	512K 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 (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
Software
Virtual Serial(THE-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

Basic Function of 4-port Serial to IP Converters

Serial to IP converters ST-TCP540I

Each one can worked as RS232, RS485, RS422
Baud rate: 600bps~ 230.4Kbps
Hardware fow control: RTS/CTS
Software fow control: XON/XOFF
Fexible 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

Work mode

TCP Server

Serial to IP converters ST-TCP540I 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 ST-TCP540i.
Serial Port Switching Among RS232/RS485/RS422 4 Ports Serial to IP Converters

TCP client mode

Serial to IP converters ST-TCP540I initiate a TCP lint to the set IP address. If the connection fails, ST-TCP540I 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.
Serial Port Switching Among RS232/RS485/RS422 4 Ports Serial to IP Converters

UDP mode

Serial to IP converters ST-TCP540I sent the data to designated IP /Port. If the connection fails, ST-TCP540I will keep trying to reconnect until it succeeds. Meanwhile, ST-TCP540I listens the port and forwards all data received to serial device.
Serial Port Switching Among RS232/RS485/RS422 4 Ports Serial to IP Converters

httpsD Client

Modbus Serial to IP converters ST-TCP540I support serial data transmitted to designed server in httpsD way.
Serial Port Switching Among RS232/RS485/RS422 4 Ports Serial to IP Converters

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.