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🌐 Connect Smarter, Scale Faster – Your Industrial Network’s Secret Weapon
The TCP232-306 is a high-performance serial-to-Ethernet gateway featuring an ARM Cortex-M0 core and a deeply optimized TCP/IP stack. It supports RS232, RS485, and RS422 interfaces with Modbus RTU to TCP protocol conversion, ensuring low latency and strong scalability. Equipped with a 10/100Mbps Ethernet port with Auto MDI/MDIX and hardware/software watchdog for automatic recovery, it guarantees stable, reliable IIoT connectivity for industrial environments.









| Asin | B0BSC1FCTL |
| Best Sellers Rank | #161 in Serial Adapters |
| Brand | PUSR |
| Color | Transparent |
| Compatible Devices | ['computer'] |
| Connector Type | Serial |
| Customer Reviews | 4.2 4.2 out of 5 stars (25) 4.2 out of 5 stars |
| Finish | Transparent |
| Input Voltage | 36 Volts (DC) |
| Manufacturer | Jinan USR IOT Technology Limited |
| Model Number | USR-TCP232-306 |
| Nominal Power | 18 Watts |
| Number Of Items | 1 |
| Number Of Ports | 4 |
| Package Quantity | 1 |
| Power Plug Type | Type A - 2 pin (North American) |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Monitor |
| Unit Count | 1.0 Count |
| Warranty Description | 2 years manufacture |
| Warranty Type | manufacture |
User
Works well.
Works well. Drop in replacement for a Newport serial to Ethernet server that died after 25 years.To configure it, you need to have an Ethernet port on your PC and configure the TCP/IP Ethernet to match the device's IP subnet which is 192.68.0.x. The device defaults to address 192.168.0.7. You can change IP settings in config.Once you've done that, you can connect to the device using http://192.168.0.7 and use default userid/pass of admin/admin (the userid/pass isn't in the docs, so I had to download the PC config program to control it, but it would be easier to just use the http server).If you want other PCs to connect to it and use the attached serial port, configure it as a TCP server and set a port number. If you want this device to constantly connect to some other server PC, configure it as a TCP Client and give the remote PC address/port info.Serial port settings are broad. Many devices default to the default of no parity, 1 stop bit, 8 bit data.
User
great little serial server
It works just like I expect - it has a web interface to set serial port properties. To send or receive serial data, you connect to it via a TCP socket. And, it's reasonably priced. It comes with a 5V, 1A power supply and a DB9 serial cable.It accepts a wide input voltage so it's easy to power. I also like the terminal blocks to make it easy to hook up RS485 or 422 devices without needing to custom wire a D-sub connector.The configuration website is a little hard to decipher because the defaults don't seem to be a functional configuration. I set the "Work Mode" to TCP Server, and then set the "Local Port Number" to the port number, and was able to open a socket and communicate. Supposing you had a modem attached to the serial port, and configured the Local Port Number to 3000:import sockets = socket.socket()s.connect(('192.168.0.7', 3000))s.send(b'AT\r\n')data = s.recv(1024)# should be b"OK"It has some other operating modes (UDP, etc). There are manuals on the manufacturer's website.I'm planning to use it to speak RS485 to my water heater's data port, so I can track temperature and power usage.
User
The language barrier can be a problem
This was not a plug and play and the documentation sent by customer service had holes in it. Links that led to a 404 etc. When I asked for more information they sent back the same docs. Understand that these people are in China and it takes a couple of days for them the reply.I was on the edge of throwing the device away, but tried to get information one more time, and this time an engineer replied. When he discovered what I wanted to do, he said forget about the other info, do this and this. Then it was It was easy and it worked perfectly.
User
Versatile for serial connections.
This device is a flexible and versatile connection to serial devices, and it well suited to experimentation. Although my early attempts to interface it to serial gear have not yet been successful, I am still willing to give this item a high rating owing to its versatile array of connection options, it’s high quality of construction, and it’s exceptionally detailed documentation. I look forward to further experiments and seeing some success. Recommended, if interfacing with serial devices is in your experimentation plans.
User
Funciona como promete
Producto práctico y de buen precio, lo utilizamos para enviar datos de dispositivos de medición a un servidor.
User
Modbus
Ottima interfaccia per rs485-TCIP che ho utilizzato per convertire il modbus serialle su protocollk tcip e funziona correttamente.
User
Kleiner server für serielle Geräte, ideal um alles smarter zu machen
Der kleiner Serielle Server ist gut verarbeitet und funktioniert bei mir ohne Probleme.Ideal um nicht smarte projekte smart zu machen.
User
Recensioni
Tutto perfetto.
User
Funziona
Ottimo convertitore , funziona egregiamente.Io lo sto usando attualmente per la comunicazione da modbus rtu a modbus tcp/ip .
Trustpilot
1 month ago
5 days ago