--- product_id: 263778969 title: "DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE" brand: "dtech" price: "2972268₫" currency: VND in_stock: true reviews_count: 5 category: "Dtech" url: https://www.desertcart.vn/products/263778969-dtech-serial-to-ethernet-converter-adapter-rs232-rs422-rs485-to store_origin: VN region: Vietnam --- # Wide 12V-70V + PoE power Multi-mode TCP/UDP & Modbus Bi-directional serial↔Ethernet DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE **Brand:** dtech **Price:** 2972268₫ **Availability:** ✅ In Stock ## Summary > 🌟 Connect Smarter, Power Stronger, Control Everywhere! ## Quick Answers - **What is this?** DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE by dtech - **How much does it cost?** 2972268₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/263778969-dtech-serial-to-ethernet-converter-adapter-rs232-rs422-rs485-to) ## Best For - dtech enthusiasts ## Why This Product - Trusted dtech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **High-Speed & Adaptive Connectivity:** 10/100 Mbps full/half duplex Ethernet interface with baud rates up to 921,600 bps to keep your data flowing fast and smooth. - • **Versatile Network Protocol Support:** Four working modes including Modbus TCP Client/Server and UDP Client/Server for ultimate compatibility with modern IoT and automation systems. - • **Power Flexibility That Works for You:** Supports wide voltage input (12V-70V) plus passive PoE, ensuring reliable deployment in diverse industrial and commercial environments. - • **Seamless Serial-to-Ethernet Integration:** Effortlessly bridge RS232/422/485 serial devices to your Ethernet network with transparent, bi-directional data transmission. - • **Dual Serial Ports for Multi-Device Control:** Simultaneously manage RS-232 and RS-485 devices, ideal for complex setups like HVAC, security, POS, and remote monitoring. ## Overview The Serial to Ethernet Device Server (model IOT9031) converts RS232/422/485 serial data into Ethernet packets with bi-directional transparency. It supports DHCP, Dynamic DNS, and multiple network modes including Modbus TCP/RTU, operating at 10/100 Mbps with baud rates up to 921,600 bps. Powered by a wide 12V-70V input or passive PoE, it features dual serial ports for simultaneous RS-232 and RS-485 communication, making it a versatile solution for industrial, medical, and commercial network integration. ## Description Product description Serial to Ethernet Adapter Convert RS-232/422/485 connections to Ethernet connection Serial RS232/RS485/RS422 to TCP/IP Ethernet Device Server If you are trying to connect a serial device that is not close to a local computer, here is a rugged powered serial to Ethernet device server for you to remotely access, control, and manage serial port device over TCP/IP network easily, regardless of the distance between the server and client computer. rs232 to ethernet conveter supports RS-232, RS-422 and RS-485 data transfers, as well as providing Ethernet connectivity for a wide variety of serial devices used in commercial applications, over IP access industrial control, data acquisition, access control, environment monitoring,banking, telecoms, remote site management, etc. What’s Included: 1x Dual Serial Device Server 1x Power Supply Adapter 100-240V AC 50/60 Hz 1x 9 pin Serial Cable RS-232 RS-485 RS-422 3 in 1 serial port to 10/100 Base self-adaptive Ethernet interface Network Interface 10/100BaseTX Autosensing Compatible with 802.3 protocol Full-duplex/half-duplex adaptive Ethernet interface Buffer: sending 6K bytes, receive 4K bytes Support IPV4, not for IPV6 LED Indicator lights and reset pushbutton Ethernet to serial adapter is well built with reset pushbutton, Power, TX and RX indicator light for easy troubleshooting Ethernet Standard: RJ-45 Female Socket Network protocol: IP, TCP, RTU, HTTPD Client, DHCP External Power Supply: 9V-70V Wide Voltage Input voltage: DC 9V-70V Input current: external power supply 1A Three kinds of power supply mode 9V-70V POE power supply mode DC 12V 1A power adapter (included) 9V-70V on terminal board's DC+ pin PoE switch need to be equiped with power over Ethernet pin 4/5 and 7/8 Dual Serial Interface Serial Interfaces Data bits: 5, 6, 7, 8 Stop bit: 1, 2 Parity: None, Even, Odd, Space, Mark Baud rate: 300bps - 921.6kbps Cache: Receive 800 bytes Protection: ±5kV ESD serial port electrostatic protection Interface standard: RS-232, RS-485, RS-422 Serial terminal server connect the server device through the Intel network signal of the computer, transmit the remote RS232/485/422 communication function, the transmission distance is more than 1200m, and each converter can connect 32 RS232/485/422 interface devices. RS485 to ethernet converter allows for seamless communication between traditional serial-based devices such as PLC, meters, sensors, barcode readers to an IP-based Ethernet device, card readers and payment terminals to an IP-based Ethernet LAN, ATM terminals, Credit card and check verification system, Data collection, Gas pump, Industrial and medical remote monitoring system, Point-of-sale terminal, Remote diagnostic, Remote metering, Security system, Ticketing/Vending/gaming machine, etc. Converting Between Serial and Ethernet Connectivity Computer networking serial server supports RS-232 and RS-485 working Independently at the same time, e.g. RS232 and RS485, or RS232 and RS422. (can’t do RS422 and RS485 at the same time) DHCP Dynamic Host Configuration Protocol Built-in Ethernet media transport layer ( MAC ) and physical layer ( PHY ) Automatically obtain IP address, Dynamic DNS domain name access Important: pls make sure the IP of computer and our device server is in the same network segment, so it can work. Modbus Gateway: Bi-directional Modbus RTU to Modbus TCP Modbus RTU/TCP bi-directional transparent transmission : through Modbus network communication, easy to achive the communication between Modbus RTU and Modbus TCP protocol. Wall Mounted Serial Port Server Dual Serial port server is well constructed with compact and protective solid steel enclosure for tabletop, wall mount or DIN rail mounting. Box Size: 90mm x 70mm x 21mm Port Operating Modes: 4 Kind of Working Modes for Socket Application Purposes TCP Server Mode Once the connection is established, the host receives data from the serial device. From this point on, data can be transmitted between the host and the device in both directions. Supports simultaneous connections from up to 16 host computers in this mode, allowing multiple computers to communicate with the serial device at the same time. TCP Client Mode When serial data comes into the serial server’s serial port, the serial server initiates contact with the host computer and begins sending serial data to the to the host. The serial server adapter can send data to up to 16 host computers simultaneously. UDP Server Mode UDP (User Datagram Protocol) Mode is faster and more efficient at communications than TCP. UDP is more suitable for real time applications (such as message display) than the slower TCP which is optimized for data accuracy. HTTPD Client Mode Convenient user-friendly way to configure an HTTP request to send serial data HTTPD (GET/POST) to a specified server. Serial Ethernet Server Specification ## Features - Bi-directional transparent transmission between serial data and Ethernet Packets: 3 in 1 Serial Device Server is designed with an RS232, RS422, or RS485 serial interface to a local area network to transmit serial data over Ethernet (TCP/IP) - Serial server box supports DHCP and Dynamic DNS function, 4 kinds of working mode: modbus TCP Client、TCP Server、UDP Client and UDP Server; bidirectional Modbus RTU/TCP - Serial port to ethernet adapter supports 10M/100M, full duplex / half duplex self-adaptive Ethernet interface (compatible with 802.3 protocol); baud rate ranges from 300 bps to 921600 bps; serial to ethernet adapter supports IPV4 - Wide voltage input 12V-70V; comes with a 12V power adapter, also supports POE (power over Ethernet, on pin 4/5 and 7/8 of POE switch); TX and RX indicators for easy troubleshooting - Dual serial port server supports RS-232 and RS-485 working at the same time, ideal for Industrial and medical remote monitoring system, ATM terminals, computer networking, POS, door controller, Data collection, security system, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08M42FL5W | | Best Sellers Rank | #646 in Serial Adapters | | Brand | DTECH | | Color | Black | | Compatible Devices | ATM Terminals, Point-of-sale Terminals, Security Systems | | Connector Type | RJ45 | | Current Rating | 1000 Milliamps | | Customer Reviews | 3.1 out of 5 stars 14 Reviews | | Finish | Transparent | | Finish Type | Transparent | | Input Voltage | 12 Volts | | Item Weight | 0.39 Kilograms | | Manufacturer | guangzhouditedianzikejiyouxiangongsi | | Mfr Part Number | IOT9031 | | Model Number | IOT9031 | | Nominal Power | 12 Watts | | Number of Items | 1 | | Number of Ports | 3 | | Package Quantity | 1 | | Power Plug Type | Type A - 2 pin (North American & Japanese) | | Smart Home Compatibility | Not Smart Home Compatible | | Specific Uses For Product | PC | | UPC | 714131653331 | | Unit Count | 1.0 Count | | Warranty Description | 180 days after the day of the purchase | | Warranty Type | Limited | ## Product Details - **Brand:** DTECH - **Color:** Black - **Compatible Devices:** ATM Terminals, Point-of-sale Terminals, Security Systems - **Connector Type:** RJ45 - **Specific Uses For Product:** PC ## Images ![DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Image 1](https://m.media-amazon.com/images/I/61qpnW+zxhL.jpg) ![DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Image 2](https://m.media-amazon.com/images/I/71jB9mLwnpL.jpg) ![DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Image 3](https://m.media-amazon.com/images/I/71eJ9rlom5L.jpg) ![DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Image 4](https://m.media-amazon.com/images/I/71E1fs5oqLL.jpg) ![DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Image 5](https://m.media-amazon.com/images/I/51P1rFKTVgL.jpg) ## Questions & Answers **Q: Rs232 is working. however i can't get rs485 to work. i tried all different configurations and still couldn't get it work.any suggestions?** A: One thing that I found is that the RS232 is on Port 2 so presumably Port 1 is the RS485. **Q: Is IPV6 supported?** A: No, this powered serial device server box can't support IPV6, it supports IPV4. **Q: Has anyone been able to power it via poe? i have a unifi poe switch that powers everything, but this device.** A: Hi, the powered serial to Ethernet device server supports POE power supply, on pin 4/5 and 7/8 of POE switch. If any inconvenience caused, we're truly sorry for that, and if need any further assistance, you may contact us directly via the order page's "contact seller" button. And here some files for your reference to use the adapter, https://app.box.com/s/i6y6on52q588huvukn1uz6dy162ossiq **Q: /What is the operating temperature? there is no this important parameter. how can i buy it?** A: Hi, the serial to Ethernet adapter's operating temperature is from -4℉ to 176 ℉, relative humidity is from 5% to 95%. ## Customer Reviews ### ⭐⭐ Review *by A***R on January 26, 2026* ### ⭐⭐⭐⭐ Review *by D***T on May 4, 2022* ### ⭐ Review *by B***S on January 20, 2024* ## Frequently Bought Together - DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE - Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1) - USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS --- ## 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.vn/products/263778969-dtech-serial-to-ethernet-converter-adapter-rs232-rs422-rs485-to](https://www.desertcart.vn/products/263778969-dtech-serial-to-ethernet-converter-adapter-rs232-rs422-rs485-to) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*