---
product_id: 496042857
title: "RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function"
brand: "waveshare"
price: "82276CFA"
currency: XOF
in_stock: true
reviews_count: 6
category: "Waveshare"
url: https://www.desertcart.sn/products/496042857-rs232-485-422-to-rj45-ethernet-converter-tcp-ip-to
store_origin: SN
region: Senegal
---

# PoE IEEE 802.3af power support Multi-protocol TCP/IP & Modbus gateway 3-in-1 RS232/485/422 ports RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function

**Brand:** waveshare
**Price:** 82276CFA
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your industrial network with seamless serial-to-Ethernet magic!

## Quick Answers

- **What is this?** RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function by waveshare
- **How much does it cost?** 82276CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/496042857-rs232-485-422-to-rj45-ethernet-converter-tcp-ip-to)

## Best For

- waveshare enthusiasts

## Why This Product

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

## Key Features

- • **Flexible Protocol Support:** From TCP Server to MQTT/JSON to Modbus, enjoy versatile communication modes tailored for modern IoT and industrial setups.
- • **Power Over Ethernet Enabled:** Cut cables, not power—PoE support ensures streamlined installation and reliable power delivery.
- • **Robust Industrial Isolation:** 2KV surge protection and isolated power/signal lines safeguard your network in harsh environments.
- • **Universal Serial Connectivity:** Seamlessly switch between RS232, RS485, and RS422 interfaces for ultimate device compatibility.
- • **Rail-Mount Ready with Wide Voltage Range:** Designed for industrial racks with 6~36V DC input, perfect for scalable, professional deployments.

## Overview

The Waveshare RS232/485/422 to RJ45 Ethernet Converter is a professional-grade, rail-mount serial server featuring tri-interface serial ports and PoE support. It enables bi-directional transparent data transmission across multiple protocols including Modbus and MQTT, with robust industrial isolation and flexible power options, making it ideal for complex industrial and IoT networking environments.

## Description

Overview Rail-Mount Serial Server, RS232/485/422 to RJ45 Ethernet Module, TCP/IP to serial, With POE Function Specifications Product type---- Serial server, Modbus Gateway, MQTT Gateway Primary function---- Bi-directional transparent data transmission between RS232/485/422 and Ethernet Communication interface---- RS232 port × 1; RS485 port × 1; RS422 port × 1; Ethernet port × 1 Power supply---- DC power port, 6 ~ 36V DC screw terminal, or PoE port Isolation protection---- Power isolation, Signal isolation Communication interface Ethernet---- PoE network port, support IEEE 802.3af standard, 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection Serial port---- Isolated RS232/485/422 Serial parameters Baud rate---- 300 ~ 115200 bps Parity bit---- none, odd, even, mark, space Data bits---- 5 ~ 9 bits Flow Control---- no flow control Software Protocol---- ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS Configuration method---- host, web browser, device management functions library Communication method---- TCP/IP direct communication, VCOM Operating mode---- TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast Other Operating temperature---- -40℃ ~ 85℃ Humidity range----5% ~ 95% relative humidity Dimensions---- L × W × H: 88.7 × 64.5 × 24.2 mm Package Content 1. RS232/485/422 TO POE ETH (B) x1 Development Resource https://www.waveshare.com/wiki/RS232/485/422_TO_POE_ETH_(B)

Review: Does operate as advertised, but setting it up is unnecessarily complex - To set it up to do Modbus to MQTT you need to run software (downloadable easily) and upload settings to the device. The whole process could be made much easier with a better UI (any UI?) on the device itself. More of a problem is that the user guide and the user interface are written in a perplexing approximation of English. Bottom line: it does work, but you will suffer trying to get it set up.
Review: Correct - Très bonne facture, électronique ok, pas de latence

## Features

- RS232/485/422 to RJ45 Ethernet Module with POE function, onboard RS232 / 485 / 422 three different interfaces, bi-directional transparent data transmission between RS232/485/422 and Ethernet, suitable for more application scenarios
- Industrial isolated rail-mount RS232/485/422 serial server, support PoE Ethernet port power supply, suitable for IEEE 802.3af PoE standard, support screw terminal and DC power port for power supply, DC 6~36V wide voltage range input
- Support Modbus Gateway, suitable for Modbus networking upgrade, can be used with specific configuration software
- Supports TCP Server / TCP Client / UDP Mode / UDP Multicast multi communication modes, MQTT/JSON to Modbus, more flexible conversion between different protocols
- Support Multi Hosts Roll-Polling, User-Defined Heartbeat/Registration Packet, NTP Protocol Support, Multi Configuration Methods

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BNKZ1LNJ |
| Best Sellers Rank | 113,867 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 41 in Serial Port Cards |
| Brand | Waveshare |
| Brand Name | Waveshare |
| CPU Model | Pentium |
| CPU socket | Socket 370 |
| Chipset Type | Intel 8xx or Intel 9xx |
| Chipset type | Intel 8xx or Intel 9xx |
| Compatible Devices | Personal Computer |
| Compatible Processors | Intel Pentium |
| Compatible devices | Personal Computer |
| Compatible processors | Intel Pentium |
| Customer Reviews | 4.1 out of 5 stars 36 Reviews |
| Graphics Card Interface | PCI Express |
| Item Dimensions L x W x H | 8.9L x 6.5W x 2.4H centimetres |
| Main Power Connector Type | 24-Pin |
| Manufacturer | Waveshare |
| Model Name | RS232/485/422 To POE ETH Converter |
| Model Number | RB-Wav-734 |
| Number of Ethernet Ports | 1 |
| Platform | Web Browser |
| Processor Socket | Socket 370 |
| RAM Memory Technology | DDR4 |
| RAM memory technology | DDR4 |
| System Bus Standard Supported | PCIe |
| Total USB Ports | 4 |
| UPC | 790885234606 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Waveshare
- **CPU model:** Pentium
- **CPU socket:** Socket 370
- **Chipset type:** Intel 8xx or Intel 9xx
- **Compatible devices:** Personal Computer
- **Compatible processors:** Intel Pentium
- **Main power connector type:** 24-Pin
- **Model name:** RS232/485/422 To POE ETH Converter
- **Platform:** Web Browser
- **RAM memory technology:** DDR4

## Images

![RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function - Image 1](https://m.media-amazon.com/images/I/51qzE3Z1pjL.jpg)
![RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function - Image 2](https://m.media-amazon.com/images/I/61eUSuaFSJL.jpg)
![RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function - Image 3](https://m.media-amazon.com/images/I/71n4Uay4fwL.jpg)
![RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function - Image 4](https://m.media-amazon.com/images/I/71f2bkrsnWL.jpg)
![RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function - Image 5](https://m.media-amazon.com/images/I/71tQgUt+NWL.jpg)

## Customer Reviews

### ⭐⭐⭐ Does operate as advertised, but setting it up is unnecessarily complex
*by A***R on 6 May 2024*

To set it up to do Modbus to MQTT you need to run software (downloadable easily) and upload settings to the device. The whole process could be made much easier with a better UI (any UI?) on the device itself. More of a problem is that the user guide and the user interface are written in a perplexing approximation of English. Bottom line: it does work, but you will suffer trying to get it set up.

### ⭐⭐⭐⭐⭐ Correct
*by Y***. on 12 March 2026*

Très bonne facture, électronique ok, pas de latence

### ⭐⭐⭐⭐⭐ Great item
*by V***R on 17 November 2024*

Great item, works good but I can't use it because it was made in China and the software is from China.

## Frequently Bought Together

- RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Serial, Modbus Gateway Support, Industrial Isolated Rail-Mount RS232/485/422 Serial Server with POE Function, Multi Communication Modes
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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-09*