---
product_id: 509292181
title: "waveshare 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"
brand: "waveshare"
price: "244.84 DT"
currency: TND
in_stock: true
reviews_count: 9
category: "Waveshare"
url: https://www.desertcart.tn/products/509292181-waveshare-rs232-485-422-to-rj45-ethernet-converter-tcp-ip
store_origin: TN
region: Tunisia
---

# RJ45 Ethernet with PoE support 3-in-1 RS232/485/422 ports Multi-protocol TCP/IP & Modbus waveshare 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

**Brand:** waveshare
**Price:** 244.84 DT
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** waveshare 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 by waveshare
- **How much does it cost?** 244.84 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/509292181-waveshare-rs232-485-422-to-rj45-ethernet-converter-tcp-ip)

## 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

- • **Robust Industrial Isolation:** Ensure stable, interference-free communication with industrial-grade power and signal isolation.
- • **Universal Serial Connectivity:** Seamlessly switch between RS232, RS485, and RS422 interfaces for ultimate device compatibility.
- • **Easy Configuration & Management:** Configure via web browser or host software with multi-host roll-polling and heartbeat features.
- • **Flexible Multi-Protocol Gateway:** Supports TCP Server/Client, UDP, MQTT/JSON to Modbus for versatile network integration.
- • **Power Over Ethernet (PoE) Enabled:** Simplify installations with IEEE 802.3af PoE support—power and data over a single cable.

## Overview

The Waveshare RS232/485/422 to RJ45 Ethernet Converter is a compact, industrial-grade serial server that supports three serial interfaces and PoE power supply. Designed for robust, bi-directional data transmission, it enables flexible protocol conversions including Modbus and MQTT, with multiple communication modes and easy web-based configuration. Ideal for upgrading legacy serial devices to modern Ethernet networks with reliable isolation and wide voltage input.

## 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 NOTE: Development Resources and Technical Support are provided, please feel free to contact us if you have any problem!

Review: Great item - Great item, works good but I can't use it because it was made in China and the software is from China.
Review: entrega rapida - fácil de configurar, manuales disponibles en Internet

## 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 | #270 in Serial Adapters |
| Brand | waveshare |
| CPU Model | Pentium |
| CPU Socket | Socket 370 |
| Chipset Type | Intel 8xx or Intel 9xx |
| Compatible Devices | RS232/485/422 Devices |
| Compatible Processors | Intel Pentium |
| Customer Reviews | 4.0 out of 5 stars 34 Reviews |
| Graphics Card Interface | PCI Express |
| Item Dimensions L x W x H | 3.49"L x 2.54"W x 0.95"H |
| Main Power Connector Type | Ethernet (PoE), Screw Terminal |
| Manufacturer | Waveshare |
| Model Name | RS232/485/422 To POE ETH Converter |
| Model Number | RB-Wav-734 |
| Number of Ethernet Ports | 1 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Platform | Web Browser |
| Processor Socket | Socket 370 |
| RAM Memory Technology | DDR4 |
| System Bus Standard Supported | PCIe |
| Total Usb Ports | 4 |
| UPC | 790885234606 |

## Product Details

- **Brand:** waveshare
- **CPU Model:** Pentium
- **CPU Socket:** Socket 370
- **Chipset Type:** Intel 8xx or Intel 9xx
- **Compatible Devices:** RS232/485/422 Devices
- **Compatible Processors:** Intel Pentium
- **Main Power Connector Type:** Ethernet (PoE), Screw Terminal
- **Model Name:** RS232/485/422 To POE ETH Converter
- **Platform:** Web Browser
- **RAM Memory Technology:** DDR4

## Images

![waveshare 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 - Image 1](https://m.media-amazon.com/images/I/51qzE3Z1pjL.jpg)
![waveshare 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 - Image 2](https://m.media-amazon.com/images/I/61eUSuaFSJL.jpg)
![waveshare 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 - Image 3](https://m.media-amazon.com/images/I/71n4Uay4fwL.jpg)
![waveshare 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 - Image 4](https://m.media-amazon.com/images/I/71f2bkrsnWL.jpg)
![waveshare 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 - Image 5](https://m.media-amazon.com/images/I/71tQgUt+NWL.jpg)

## Customer Reviews

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

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

### ⭐⭐⭐⭐ entrega rapida
*by G***S on August 6, 2025*

fácil de configurar, manuales disponibles en Internet

### ⭐ YMMV. I suggest finding and reading the documentation first.
*by E***C on July 14, 2026*

Instructions? Poorly translated, nearly useless. Linux Support? No. Documentation, severely lacking. Did I get it working? No.

## 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-09-12*