--- product_id: 349668398 title: "USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS" brand: "pusr" price: "542 kr" currency: DKK in_stock: true reviews_count: 4 category: "Pusr" url: https://www.desertcart.dk/products/349668398-usr-tcp232-302-serial-rs232-to-ethernet-tcp-ip-server store_origin: DK region: Denmark --- # 10/100Mbps Ethernet RJ45 port Bidirectional RS232 to Ethernet transparent transmission Supports DHCP/DNS & multiple TCP/UDP modes USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS **Brand:** pusr **Price:** 542 kr **Availability:** βœ… In Stock ## Summary > 🌟 Connect legacy to future-proof your network effortlessly! ## Quick Answers - **What is this?** USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS by pusr - **How much does it cost?** 542 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/349668398-usr-tcp232-302-serial-rs232-to-ethernet-tcp-ip-server) ## 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 - β€’ **Plug & Play IP Management:** Auto DHCP and DNS support means zero hassle in IP configurationβ€”just connect and go. - β€’ **Seamless Network Integration:** Effortlessly bridge legacy RS232 devices to modern Ethernet networks with transparent bidirectional data flow. - β€’ **Robust Connection Reliability:** Heartbeat and custom packet mechanisms eliminate dead links, ensuring your data never misses a beat. - β€’ **Versatile Communication Modes:** Operate as TCP Server/Client, UDP Server/Client, or HTTPD Client to fit any industrial or smart environment. - β€’ **Future-Proof Firmware Upgrades:** Easily update firmware over the network to keep your device cutting-edge without downtime. ## Overview The USR-TCP232-302 is a compact, cost-effective serial device server that converts RS232 signals to Ethernet TCP/IP with full protocol integration. Featuring auto DHCP/DNS, multiple TCP/UDP modes, and robust connection management, it enables seamless networking for industrial automation, smart homes, and security systems. Its transparent design and firmware upgradeability make it a reliable choice for professionals seeking to modernize legacy serial devices with minimal fuss. ## Description PUSR USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS Features of RS232 Ethernet ServerSupport DNS functionSet parameters through webpageUpgrade firmware via networkAuto-MDI/MDIX, RJ45 port with 10/100MbpsSerial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and SpaceSupport virtual serial port and provide corresponding software USR-VCOMHeartbeat 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, Client number ranges from 1 to 16; default number is 4Across the gateway, switches, routersProvide PC TCP/IP socket programming example such as VB,C++,...Application Field of RS232 Ethernet ServerIndustrial data transmission, industrial automationsecurity and protection monitoring, public securitySmart home, power control, environmental monitoring, intelligent agricultureDoor check on work attendance system, POS system, rice selling systemBuilding automation system, power monitoring, self-service banking system, telecom machine room monitoring Review: Buena calidad - Muy bueno Review: Not quite what I needed. - I ordered this to replace an OEM one that was not available for a few months. It did work, however It was not quite the same as the OEM one we needed and required extensive programming to work around the difference. Not the fault of the product. ## Features - USR-TCP232-302 is a low-cost serial device server,whose function is to realize bidirectional transparent transmission between RS232 and Ethernet. - USR-TCP232-302 is internally integrated with TCP/IP protocol. User can apply it to device networking communication. - Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol - Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client - The global unique MAC address bought from IEEE, user can define MAC address? Can work in LAN, also can work in the Internet (external network) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09D7CDT5D | | Best Sellers Rank | #271 in Serial Adapters | | Brand | PUSR | | Color | Transparent | | Compatible Devices | PC | | Connector Type | RJ45 | | Customer Reviews | 4.0 out of 5 stars 16 Reviews | | Finish | Transparent | | Finish Type | Transparent | | Item Weight | 0.21 kg | | Manufacturer | PUSR | | Mfr Part Number | YRQ18041 | | Model Number | YRQ18041 | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Unit Count | 1 Count | ## Product Details - **Brand:** PUSR - **Color:** Transparent - **Compatible Devices:** PC - **Connector Type:** RJ45 - **Finish Type:** Transparent ## Images ![USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS - Image 1](https://m.media-amazon.com/images/I/419DMYSryUL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Buena calidad *by M***O on July 12, 2026* Muy bueno ### ⭐⭐⭐⭐⭐ Not quite what I needed. *by J***G on October 13, 2023* I ordered this to replace an OEM one that was not available for a few months. It did work, however It was not quite the same as the OEM one we needed and required extensive programming to work around the difference. Not the fault of the product. ### ⭐⭐ Nope. Unable to establish bi-directional connectivity *by R***Y on February 27, 2022* No worky. Back to the drawing board. Tried every combination of the converter and their software. I know serial can be tricky. But this is 2022. Documentation is sketchy. Online help is limited also in this regard as it refers to images of previous versions of the software, not what is currently published. Moving on. ## Frequently Bought Together - PUSR USR-TCP232-302 Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS - Jienk 5Pcs DB9 Male to RJ45 Modular Adapter, DB9 to RJ45 Female Jack Ethernet Adapter --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/349668398-usr-tcp232-302-serial-rs232-to-ethernet-tcp-ip-server](https://www.desertcart.dk/products/349668398-usr-tcp232-302-serial-rs232-to-ethernet-tcp-ip-server) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-09-30*