--- 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: "€ 69.49" currency: EUR in_stock: true category: "Waveshare" url: https://www.desertcart.hr/products/509292181-waveshare-rs232-485-422-to-rj45-ethernet-converter-tcp-ip store_origin: HR region: Croatia --- # PoE-enabled RJ45 Ethernet port 3-in-1 RS232/485/422 ports Multi-protocol TCP/IP & Modbus support 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:** € 69.49 **Availability:** ✅ In Stock ## Summary > 🌟 Elevate your industrial network game—connect smarter, power easier, and future-proof today! ## 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?** € 69.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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. - • **Flexible Multi-Protocol Gateway:** Effortlessly bridge TCP/IP, Modbus, MQTT, and JSON protocols for next-level network integration. - • **Power Over Ethernet (PoE) Ready:** Simplify installations with IEEE 802.3af PoE support—power and data over a single cable. - • **Universal Serial Interface Trio:** Seamlessly connect RS232, RS485, and RS422 devices with one compact converter. - • **Versatile Configuration & Operation:** Choose from TCP Server/Client, UDP modes, and user-defined heartbeat for tailored network control. ## Overview The Waveshare RS232/485/422 to RJ45 Ethernet Converter is a compact, industrial-grade serial server that supports bi-directional transparent data transmission across multiple serial interfaces and Ethernet. Featuring Power over Ethernet (PoE) for simplified deployment, it supports a wide voltage range and multiple communication protocols including Modbus and MQTT. Designed for versatile industrial applications, it offers robust isolation, flexible configuration, and multi-mode operation to seamlessly integrate legacy serial devices into modern TCP/IP networks. ## 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! ## 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 | #165 in Serial Adapters #380 in Computer Networking Switches | | Brand | waveshare | | CPU Model | Pentium | | Chipset Type | Intel 8xx or Intel 9xx | | Compatible Devices | RS232/485/422 Devices | | Compatible Processors | Intel Pentium | | Customer Reviews | 4.1 4.1 out of 5 stars (33) | | 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 Ports | 4 | | 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) ## 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 - USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS - Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/509292181-waveshare-rs232-485-422-to-rj45-ethernet-converter-tcp-ip](https://www.desertcart.hr/products/509292181-waveshare-rs232-485-422-to-rj45-ethernet-converter-tcp-ip) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-23*