--- product_id: 59538949 title: "USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported" brand: "bgning" price: "967 DH" currency: MAD in_stock: true reviews_count: 9 category: "Bg Ning" url: https://www.desertcart.ma/products/59538949-usr-tcp232-304-serial-rs485-to-tcp-ip-ethernet-server store_origin: MA region: Morocco --- # 10/100Mbps Auto-MDI/MDIX RJ45 DHCP/DNS & Webpage config 1-port RS485 to Ethernet USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported **Brand:** bgning **Price:** 967 DH **Availability:** βœ… In Stock ## Summary > 🌟 Unlock Industrial IoT Power with Effortless Ethernet Bridging! ## Quick Answers - **What is this?** USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported by bgning - **How much does it cost?** 967 DH with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/59538949-usr-tcp232-304-serial-rs485-to-tcp-ip-ethernet-server) ## Best For - bgning enthusiasts ## Why This Product - Trusted bgning brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Future-Proof & Scalable:** Global unique MAC, firmware upgrades via network, and multi-client support (up to 16) keep you ahead. - β€’ **Plug & Play Network Setup:** Auto DHCP/DNS support with intuitive built-in webpage for zero-hassle configuration. - β€’ **Reliable Data Transmission:** Heartbeat & custom packet mechanisms eliminate dead links and ensure connection integrity. - β€’ **Robust Protocol Compatibility:** Supports TCP/UDP server & client modes plus virtual COM ports for versatile integration. - β€’ **Seamless Industrial Connectivity:** Effortlessly bridge RS485 serial devices with TCP/IP networks for real-time data flow. ## Overview The USR-TCP232-304 is a high-performance 1-port RS485 to TCP/IP Ethernet converter designed for industrial automation and smart systems. Featuring 10/100Mbps Auto-MDI/MDIX RJ45 connectivity, DHCP/DNS support, and a user-friendly web interface, it enables seamless, reliable data transmission across networks. With support for multiple protocols (TCP, UDP, HTTP) and virtual COM ports, plus advanced connection monitoring, it’s engineered for scalable, robust integration in environments from smart homes to telecom monitoring. ## Description Detail Detail Features of RS485 Ethernet Server Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol Support DNS function Set parameters through webpage Upgrade firmware via network Auto-MDI/MDIX, RJ45 port with 10/100Mbps Serial port baud rate from 600 bps to 230.4 Kbps, Check bit of None, Odd, Even, Mark and Space Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client Support virtual serial port and provide corresponding software USR-VCOM Heartbeat package mechanism to ensure connection is reliable, put an end to dead link User-defined registration package mechanism, check connection status and use as custom packet header Under TCP Server mode, Client number ranges from 1 to 16; default number is 4 The global unique MAC address bought from IEEE, user can define MAC address Restore factory default Across the gateway, switches, routers Can work in LAN, also can work in the Internet (external network) Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS Support customization Application Field of RS485 Ethernet Server Industrial data transmission, industrial automation security and protection monitoring, public security Smart home, power control, environmental monitoring, intelligent agriculture Door check on work attendance system, POS system, rice selling system Building automation system, power monitoring, self-service banking system, telecom machine room monitoring Review: Does the job - I use these to master Modbus-RS485 devices. Note it is a simple converter device - so it doesn't convert Modbus-TCP to Modbus-serial. This meant I had to code a Modbus-TCP-RTU master - which has some problems as responses in Modbus-RTU do not contain a transaction ID. If I repeat the same function code to the same slave with the same register count, the responses could get mixed up - my solution was to never do this (interleave requests with different register counts & checking response length resolves this issue). (This is a limitation of the Modbus protocol - not this device). I currently have two communicating to two different Modbus networks using different serial comms parameters - both have been running for prolonged periods without issue. Review: No instructions - I would love to give this product 5 stars but the reality is that I have spent 7 hours trying to get it to work and still can't. 1. There are no instructions on the desertcart page, why not provide a link to some? 2. I finally did find the manufacturers page and the product they provide, but the instructions simply don't work. I followed what they said and could not connect to the device either via Ethernet cable, or via Serial connection. I wrote to their "hotline" on whatsapp to get some help but received no response. So, in all, it seems I've wasted a bit of money and a lot of time. ## Features - 1-port RS485 to Ethernet converters USR-TCP232-304 can transmit data transparently between TCP/IP and RS485, are widespread required in industrial automation. Simple configuration and easy to use. - Network Protocol:IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP - BufferSend: 6K bytes, receive: 4K bytes - Support TCP server/client, UDP server/client, virtual COM ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BC77L8K | | Best Sellers Rank | 65,527 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 98 in Network Transceivers | | Brand | BGNing | | Brand Name | BGNing | | Colour | Black | | Compatible Devices | PC | | Compatible devices | PC | | Connector Type | RJ45 | | Connector type | RJ45 | | Customer Reviews | 3.9 out of 5 stars 68 Reviews | | Finish type | Matte | | Input Voltage | 5 Volts | | Item Weight | 0.23 Kilograms | | Manufacturer | USR | | Manufacturer Part Number | Q14870 | | Model Number | USR-TCP232-304 | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Power Plug Type | No Plug | | Product Finish Type | Matte | | Specific Uses For Product | Industrial data transmission, Industrial automation, Security and protection monitoring, Smart home, Power control, Environmental monitoring, Intelligent agriculture, Door check on work attendance system, POS system, Rice selling system, Building automation system, Power monitoring, Self-service banking system, Telecom machine room monitoring | | Specific uses for product | Industrial data transmission, Industrial automation, Security and protection monitoring, Smart home, Power control, Environmental monitoring, Intelligent agriculture, Door check on work attendance system, POS system, Rice selling system, Building automation system, Power monitoring, Self-service banking system, Telecom machine room monitoring Specific uses for product Industrial data transmission, Industrial automation, Security and protection monitoring, Smart home, Power control, Environmental monitoring, Intelligent agriculture, Door check on work attendance system, POS system, Rice selling system, Building automation system, Power monitoring, Self-service banking system, Telecom machine room monitoring See more | | UPC | 686603101926 | | Unit Count | 1.0 count | | Warranty Type | Limited | ## Product Details - **Compatible devices:** PC - **Specific uses for product:** Industrial data transmission, Industrial automation, Security and protection monitoring, Smart home, Power control, Environmental monitoring, Intelligent agriculture, Door check on work attendance system, POS system, Rice selling system, Building automation system, Power monitoring, Self-service banking system, Telecom machine room monitoring - **Connector type:** RJ45 - **Brand:** BGNing - **Finish type:** Matte ## Images ![USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - Image 1](https://m.media-amazon.com/images/I/619v5umsDxL.jpg) ![USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - Image 2](https://m.media-amazon.com/images/I/61skRzALFUL.jpg) ![USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - Image 3](https://m.media-amazon.com/images/I/61imFJpMX5L.jpg) ![USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - Image 4](https://m.media-amazon.com/images/I/612-crCd7aL.jpg) ![USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - Image 5](https://m.media-amazon.com/images/I/61J-04FJihL.jpg) ## Questions & Answers **Q: Will this allow me to control my ptz camera with rs485 output from my computer via my router?** A: I assume your camera doesn't have WIFI or ethernet connections and only RS485? If the only option is an RS485 port on the camera then this device will work. You can download software from the USR company to create a virtual coms port so that this RS485 device "looks" like a coms port on your computer. **Q: does this item come with a power supply?** A: This item contains a power supply plug,it is EU-type plug. **Q: Can you use two of these with ip network between to provide rs485 transparent link between two rs485 devices?** A: If you are trying to connect two RS485 devices over a standard Ethernet network this would not work. You would need a computer in the middle to talk to device 1 over it's Ethernet to RS485 interface and then read that data and send it onto Device #2 over its own RS485 converter, in effect you need some brains in the middle - and a little program to read the data from #1 and send it onto #2 and back the other way for full duplex coms, a Raspberry Pi or similar mini computer could easily do this. If you are trying to extend an RS485 link then RS485 boosters / repeaters would be better - or go RS485 to Fibre and push your serial data down a direct fibre optic link. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does the job *by A***R on 19 November 2022* I use these to master Modbus-RS485 devices. Note it is a simple converter device - so it doesn't convert Modbus-TCP to Modbus-serial. This meant I had to code a Modbus-TCP-RTU master - which has some problems as responses in Modbus-RTU do not contain a transaction ID. If I repeat the same function code to the same slave with the same register count, the responses could get mixed up - my solution was to never do this (interleave requests with different register counts & checking response length resolves this issue). (This is a limitation of the Modbus protocol - not this device). I currently have two communicating to two different Modbus networks using different serial comms parameters - both have been running for prolonged periods without issue. ### ⭐⭐⭐ No instructions *by O***T on 25 May 2023* I would love to give this product 5 stars but the reality is that I have spent 7 hours trying to get it to work and still can't. 1. There are no instructions on the amazon page, why not provide a link to some? 2. I finally did find the manufacturers page and the product they provide, but the instructions simply don't work. I followed what they said and could not connect to the device either via Ethernet cable, or via Serial connection. I wrote to their "hotline" on whatsapp to get some help but received no response. So, in all, it seems I've wasted a bit of money and a lot of time. ### ⭐⭐ Not good *by T***E on 22 June 2024* Spent a while getting this working.. it's not well documented at all, as another poster mentioned. I bought it because it advertised AT command set but what it supports is utterly unlike anything you would call that,, resembling AT commands only in that they start with the letters 'AT'. There's not even a dial function.. Not managed to connect this to anything but that might be because the documentation is trash. Alas wasted money. ## Frequently Bought Together - USR-TCP232-304 Serial RS485 to TCP/IP Ethernet Server Converter Module with Built-in Webpage DHCP/DNS Supported - USR-TCP232-302 Tiny Size Serial RS232 to Ethernet TCP IP Server Module Ethernet Converter Support DHCP/DNS - PUSR Serial RS232 RS485 to Ethernet Modbus RTU to Modbus TCP Gateway Modbus to Ethernet Converter USR-TCP232-410s --- ## 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.ma/products/59538949-usr-tcp232-304-serial-rs485-to-tcp-ip-ethernet-server](https://www.desertcart.ma/products/59538949-usr-tcp232-304-serial-rs485-to-tcp-ip-ethernet-server) --- *Product available on Desertcart Morocco* *Store origin: MA* *Last updated: 2026-10-10*