---
product_id: 143394200
title: "USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter"
brand: "pusr"
price: "R2120"
currency: ZAR
in_stock: true
reviews_count: 6
category: "Pusr"
url: https://www.desertcart.co.za/products/143394200-usr-tcp232-306-serial-to-ethernet-converter-lan-ethernet-tcp
store_origin: ZA
region: South Africa
---

# Multi-mode TCP/UDP/HTTP networking Bi-directional RS232/485/422 serial conversion 5-36V wide power input USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter

**Brand:** pusr
**Price:** R2120
**Availability:** ✅ In Stock

## Summary

> 🌐 Future-proof your industrial network with smart serial-to-Ethernet power!

## Quick Answers

- **What is this?** USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter by pusr
- **How much does it cost?** R2120 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/143394200-usr-tcp232-306-serial-to-ethernet-converter-lan-ethernet-tcp)

## Best For

- pusr enthusiasts

## Why This Product

- Trusted pusr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Power Compatibility:** Wide 5-36V DC input ensures reliable operation across diverse industrial environments.
- • **User-Friendly Configuration:** Configure via built-in web interface, AT commands, or serial/network protocols—no complex software needed.
- • **Flexible Network Protocol Support:** Operate as TCP Server/Client, UDP Server/Client, or HTTPD Client to fit any industrial communication setup.
- • **Customizable Connection Management:** Supports up to 16 simultaneous TCP clients with heartbeat and auto-restart to guarantee uninterrupted data flow.
- • **Seamless Serial-to-Ethernet Integration:** Effortlessly bridge legacy serial devices with modern networks for real-time remote control and data acquisition.

## Overview

The USR-TCP232-306 is a versatile serial-to-Ethernet converter supporting RS232, RS485, and RS422 interfaces. It enables transparent bi-directional data transmission over TCP/IP networks with flexible modes including TCP/UDP and HTTPD client. Designed for industrial automation, security, and remote monitoring, it features wide voltage input (5-36V), up to 16 client connections, heartbeat mechanisms for connection reliability, and easy configuration via web or command protocols. This cost-effective device ensures seamless integration of legacy serial equipment into modern Ethernet infrastructures.

## Description

USR-TCP232-306 is a multi serial port ethernet converter,which can realize bi-directional transparent transmission between RS232/RS485/RS422 and Ethernet. User can directly process data interaction through network and device to realize remote data acquisition, remote control and management. Features Auto-MDI/MDIX, RJ45 port with 10/100Mbps Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client Baud rate of serial port can be configured from 600 bps to 230.4 Kbps, supports check bit of none, odd, even, mark and spaceHeartbeat package mechanism to ensure connection is reliable, put an end to dead linkUser-defined registration package mechanism, check connection status and use as custom packet headerUnder TCP Server Mode, the connection number with client can be randomly set from 1 to 16, default number is 4. IP has been connected can be shown according to connectiong with calculating send / recceive dat. When connection number reaches a maximun, the new connection is kicked off the old one can be configured by user Parameters can be configured by built-in webpage, AT command, serial port procotol and network procotol. Setting procotol is avaliable to integrate into user¡¯s software. Supports TCP client short connection function, user-defined the disconnected time.Device restart if no data transmission or timeout. User-defined the restart time. If data buffer needs to clear configuration before TCP connection establishment Supports DHCP, automatically obtain an IP address and query IP address via serial setting protocol.The global unique MAC address, user-defined MAC addressDNS functionDNS server addres can be definedFirmware can be upgraded by networkProvide Virtual com software Restore factory setting through software or hardware Running across the gateway, switches or routers. Can work in LAN, also can work in the Internet

Review: Nice and simple to configure - Works really well as a TCP client, though one star knocked off as the Tx/Rx LEDs seem to be reversed. Set-up is simple and the inclusion of power supply terminals (for standard 24VDC) is a real plus. it's a solid piece of kit too. One thing not mentioned in the product blurb is the availability of some additional test utilities from the manufacturers web page that allow the raw traffic through the converter to be analysed. That proved really useful and is something lacking in some converters costing 10x the cost.
Review: Ottimo Prodotto! - Dispositivo ben costruito; di facile programmazione. Attenzione però non c'è un software che gira su Windows che emula la porta seriale dove poi i vari software vanno a collegarsi, stile MOXA Nport, ma è un semplice TCP/UDP Server/Client. Quindi sarà poi il software stesso che utilizza la porta seriale che deve incapsulare il traffico da fare uscire/entrare dalla porta seriale verso l'indirizzo IP che avrete assegnato al dispositivo. Pagine web per la configurazione in lingua inglese.

## Features

- USR-TCP232-306 Serial to Ethernet Device Server is a Cost-Effective Solution for Serial Data Communication
- Noted: Wide Power Supply 5-36v DC
- HTTPD Client mode, Sends Serial Data in HTTP Format
- Work Mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client
- Supports RS232/RS485/RS422 Port ( Can¡¯t be used at one time)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G5P4CPR |
| Best Sellers Rank | 72,313 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 26 in Modems 180 in Serial Adapters |
| Brand | PUSR |
| Brand Name | PUSR |
| Colour | black |
| Compatible Devices | Devices with compatible serial ports (RS232/RS485/RS422) and Ethernet communication capabilities, such as industrial control systems, automation equipment, security systems, smart home devices, and environmental monitoring systems. |
| Compatible devices | Devices with compatible serial ports (RS232/RS485/RS422) and Ethernet communication capabilities, such as industrial control systems, automation equipment, security systems, smart home devices, and environmental monitoring systems. Compatible devices Devices with compatible serial ports (RS232/RS485/RS422) and Ethernet communication capabilities, such as industrial control systems, automation equipment, security systems, smart home devices, and environmental monitoring systems. See more |
| Connector Type | RJ45 |
| Connector type | RJ45 |
| Country of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 58 Reviews |
| Input Voltage | 5 Volts (DC) |
| Item Dimensions | 20 x 5 x 15 centimetres |
| Item Weight | 0.43 Kilograms |
| Item dimensions L x W x H | 20 x 5 x 15 centimetres |
| Manufacturer | USR |
| Manufacturer Part Number | Na |
| Model Number | USR-TCP232-306 |
| Number of Items | 1 |
| Number of Ports | 3 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Product Finish Type | Matte |
| Product Warranty | 1 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Industrial Automation, Monitoring, Security and Protection, Smart Home, Power Control, Environmental Intelligent Agriculture, Commercial Systems (POS, Building Self-service Banking, Telecom Machine Room Monitoring) |
| Specific uses for product | Industrial Automation, Monitoring, Security and Protection, Smart Home, Power Control, Environmental Intelligent Agriculture, Commercial Systems (POS, Building Self-service Banking, Telecom Machine Room Monitoring) Specific uses for product Industrial Automation, Monitoring, Security and Protection, Smart Home, Power Control, Environmental Intelligent Agriculture, Commercial Systems (POS, Building Self-service Banking, Telecom Machine Room Monitoring) See more |
| UPC | 799975202006 614019488713 702669842730 610393788906 661787210428 |
| Unit Count | 1.0 count |
| Warranty Type | Limited |

## Product Details

- **Colour:** black
- **Connector type:** RJ45
- **Item dimensions L x W x H:** 20 x 5 x 15 centimetres

## Images

![USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter - Image 1](https://m.media-amazon.com/images/I/61ZKYbbaADL.jpg)
![USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter - Image 2](https://m.media-amazon.com/images/I/410-MHpRdqL.jpg)
![USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter - Image 3](https://m.media-amazon.com/images/I/3163GVrPJNL.jpg)
![USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter - Image 4](https://m.media-amazon.com/images/I/41TpAUk4ZaL.jpg)
![USR-TCP232-306 Serial to Ethernet Converter Lan Ethernet TCP/IP to RS232 RS485 RS422 Converter - Image 5](https://m.media-amazon.com/images/I/510JJjw9LSL.jpg)

## Questions & Answers

**Q: Can the module retain fixed ip configs after power loss?
can the module communicate back-to-back without a pc or server interface?**
A: IP settings are retained in internal memory, even after power loss.
Yes, 2 modules can communicate back to back via Ethernet cable without pc.
I actually used a wireless link utilising Ubiquiti nano 
stations between the 2 tcp modules. Had no problems once correctly configured.

**Q: can the device be used to read modbus data sent by a unit via rs485?**
A: Do you only need to transparently transmit Modbus data, or do you need to convert Modbus RTU to Modbus TCP? If Modbus RTU to Modbus TCP is required, USR-TCP232-410s is recommended.

**Q: Hi, i just plugged into my network, how do i connect? i cant see a dchp client on my router.... so i have no idea what ip address it is...**
A: You can connect the computer and USR-TCP232-306 to the same router via the Ethernet cable, then search it in the M0 setup software. M0 setup software download address: https://www.pusr.com/Support/download_hits.html?id=336

**Q: I have a very dumb system. a key pad producing an 8 bit serial word for each key. will a pair of these units allow an ip connection?**
A: As long as you are outputting rs232, it *should* work. You need to configure one a a server and the other as a client.  I only have a single module rs422 to Ethernet, working as a server and it works fine.

## Customer Reviews

### ⭐⭐⭐⭐ Nice and simple to configure
*by P***C on 24 March 2022*

Works really well as a TCP client, though one star knocked off as the Tx/Rx LEDs seem to be reversed. Set-up is simple and the inclusion of power supply terminals (for standard 24VDC) is a real plus. it's a solid piece of kit too. One thing not mentioned in the product blurb is the availability of some additional test utilities from the manufacturers web page that allow the raw traffic through the converter to be analysed. That proved really useful and is something lacking in some converters costing 10x the cost.

### ⭐⭐⭐⭐⭐ Ottimo Prodotto!
*by L***O on 19 October 2024*

Dispositivo ben costruito; di facile programmazione. Attenzione però non c'è un software che gira su Windows che emula la porta seriale dove poi i vari software vanno a collegarsi, stile MOXA Nport, ma è un semplice TCP/UDP Server/Client. Quindi sarà poi il software stesso che utilizza la porta seriale che deve incapsulare il traffico da fare uscire/entrare dalla porta seriale verso l'indirizzo IP che avrete assegnato al dispositivo. Pagine web per la configurazione in lingua inglese.

### ⭐⭐⭐⭐⭐ Great product, easy to configured!
*by P***N on 2 August 2023*

Great product, easy to configured!

## Frequently Bought Together

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-13*