---
product_id: 68419970
title: "Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1)"
brand: "pusr"
price: "VT21972"
currency: VUV
in_stock: true
reviews_count: 13
category: "Pusr"
url: https://www.desertcart.vu/products/68419970-usr-tcp232-410s-rs232-rs485-serial-to-ethernet-adapter-ip
store_origin: VU
region: Vanuatu
---

# Cortex-M4 120MHz CPU Dual RS232 & RS485 ports Wide -40~85°C operating temp Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1)

**Brand:** pusr
**Price:** VT21972
**Availability:** ✅ In Stock

## Summary

> 🌐 Connect Smarter, Work Faster — The Serial Server for the Modern Manager

## Quick Answers

- **What is this?** Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1) by pusr
- **How much does it cost?** VT21972 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/68419970-usr-tcp232-410s-rs232-rs485-serial-to-ethernet-adapter-ip)

## 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

- • **Secure IoT Ready:** Supports SSL/TLS encryption & two-way certificate authentication for bulletproof data transmission.
- • **Plug & Play Web Config:** Configure effortlessly via built-in web interface or virtual COM software—no IT degree required.
- • **Industrial-Grade Reliability:** Operates flawlessly from -40°C to 85°C with <1W power consumption—built for nonstop performance.
- • **Modbus Mastery & Cloud-Ready:** Handles up to 128 data points, converts Modbus RTU to TCP, and streams JSON to IoT clouds via MQTT.
- • **Seamless Dual-Protocol Powerhouse:** Simultaneously run RS232 & RS485 for ultimate connectivity without compromise.

## Overview

The USR-TCP232-410S is a dual-port serial-to-Ethernet adapter featuring a powerful Cortex-M4 120MHz CPU, supporting simultaneous RS232 and RS485 communication. Designed for industrial environments with a wide operating temperature range (-40 to 85°C) and ultra-low power consumption (<1W), it offers secure data transmission with SSL/TLS encryption and two-way certificate authentication. Ideal for integrating legacy serial devices into modern IoT and Modbus networks, it supports up to 128 data points and provides easy web-based configuration, making it a robust solution for professional-grade remote monitoring and control.

## Description

Serial Device Server Introduction This is a Serial RS485 and RS232 to Ethernet Server, Used for Data Transparent Transmission. Usr-Tcp232-410S is a Dual Serial Server, Which Supports RS232 and RS485 Working at The Same Time. it is Based On Cortex-M4 Solution and The Internal of The Serial Server Integrates Tcp / IP Protocol Stack. Besides, Usr-Tcp232-410S Has The Function of Terminal Power Supply. Feature Multiple Indicator Lights for Convenient Debugging Power-Line Terminal for Industrial Application Arm Kernel and Tcp / Ip Protocol Stack Auto-Mdi / Mdix, Rj45 Port with 10 / 100Mbps Tcp Server, Tcp Client, Udp, Udp Server and Httpd Client Work Mode Two Ports Can Work Independently at The Same Time Support Virtual Serial Port and Provide Corresponding Software Usr-Vcom Serial Baud Rate From 600Bps to 230. 4K Bps; Check Bit of None, Odd, Even, Mark and Space Dns and Dhcp Supported Provide Pc Tcp / Ip Socket Programming Example, Vb, C++, Delphi, Android, Ios Built-In Webpage; Also Can Customize Webpage for Users Reload Button, One Key to Restore Default Settings Rj45 with Link / Data Indicator Light, Built-In Isolation Transformer and 2 Kv Electromagnetic Isolation The Global Unique Mac Address Bought From Ieee, User Can Define Mac Address Supp Ort Upgrade Firmware Via Network Support Keep-alive, Rapidly Detect Dead Links Support Account and Password, Can Be Used to Page Login and Network Settings Support One Channel Websocket, Realize Bidirectional Transparent Transmisison Bewteen Webpage and Serial 0 Support Modbus Rtu to Modbus Tcp Support Udp Broadcast Function, Send and Receive Data From All Ip in The Network What is in The Box: 1 x Dual Serial Device Server, 1 x 5V 1a Power Supply, 1 x Female to Female Serial Cable.

Review: Works with Avigilon / HID Vertex controllers - Used 2 of these to extend the 485 buss from an Avigilon V1000 Embedder controller that normally will not support V2000 ethernet 2 door controllers. I set up a point to point bridge to a building across the street. 250mb connection. Then used V100 door controller with 485 in. Once i set up the host and client then set the correct baud rate they connected. My access card swipes and open time are fast. Good product. They come with a fixed IP address of 192.168.0.6 or .7 no printed instructions. So make Shure you have internet access during you install.
Review: Here are the directions - Not sure why they are not included, especially when the IP is set to static (192.168.0.7) in default and the pw un is admin/admin. I guess the only people that buy one of these already know how to set it up. I have had it for a week and just now got to the web interface so I dont know if it works but progress I am making progress. Good luck

## Features

- Dual Serial Device Server: Cpu: Cort ex-M4 120Mhz, Serial RS485 & RS232 to Ethernet Server, 2 Serial Ports: 1 Port is RS232, 1 Port is RS485, 1 RJ45 Ethernet Port. Support RS232 & RS485 Working at The Same Time.
- Configure Via Web Browser or Virtual Com Software Interface; Working Temperature: -40 ~ 85°C, Power Consumption: < 1W.
- USR-TCP232-410s can collected data in Modbus RTU, Modbus TCP protocol and reporting data to IoT cloud in JSON format using MQTT or TCP/UDP/HTTP protocol. It supports up to 128 data points, and can decode and compute the collected data to reduce server’s pressure.
- Modbus Gateway: Connect to PLC, SCADA system or user’s private server to achieve local or remote motoring.Modbus RTU to Modbus TCP and Multi-Host Modbus Polling.
- Data Dransmission Encryption: Supports SSL/TLS encryption in TCP client, HTTP client and MQTT operation modes. Supports two-way certificates authentication.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07C1TC165 |
| Best Sellers Rank | #140 in Serial Adapters |
| Customer Reviews | 4.0 4.0 out of 5 stars (77) |
| Date First Available | June 7, 2016 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.007 ounces |
| Item model number | USR-TCP232-410S |
| Manufacturer | PUSR |
| Product Dimensions | 3.54 x 3.31 x 0.98 inches |

## Product Details

- **Brand:** PUSR
- **Color:** Server +Terminal part
- **Compatible Devices:** Desktop
- **Data Link Protocol:** Ethernet
- **Data Transfer Rate:** 100 Megabits Per Second
- **Hardware Interface:** Ethernet
- **Item Weight:** 0.2 Grams
- **Manufacturer:** PUSR
- **UPC:** 661787209378

## Images

![Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1) - Image 1](https://m.media-amazon.com/images/I/615dXJGLnUL.jpg)

## Questions & Answers

**Q: manual download link?**
A: https://www.mediafire.com/file/jttkkbzz783uiq3/%255BUser_Manual%255DUSR-TCP232-410s-User-Manual-V1.1.1.02.pdf/file

**Q: Do i need 3rd party software? And is this mac compatible?**
A: The device is an adapter. It will convert communication protocols such as RS232, RS422 and RS485 in and outbound into ethernet ( TCP) Packets. MAC's and PC's both use TCP. The software would be created by you.
You would need to give a description of your intended use case(s) for a more definitive answer.

**Q: Do these support ddns updates so i can get back in after the public ip changes?**
A: Not Support.

**Q: By using this device, am i able to communicate the compactrio and omron plc?**
A: Probably.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works with Avigilon / HID Vertex controllers
*by N***N on April 19, 2021*

Used 2 of these to extend the 485 buss from an Avigilon V1000 Embedder controller that normally will not support V2000 ethernet 2 door controllers. I set up a point to point bridge to a building across the street. 250mb connection. Then used V100 door controller with 485 in. Once i set up the host and client then set the correct baud rate they connected. My access card swipes and open time are fast. Good product. They come with a fixed IP address of 192.168.0.6 or .7 no printed instructions. So make Shure you have internet access during you install.

### ⭐⭐⭐⭐⭐ Here are the directions
*by D***N on March 8, 2024*

Not sure why they are not included, especially when the IP is set to static (192.168.0.7) in default and the pw un is admin/admin. I guess the only people that buy one of these already know how to set it up. I have had it for a week and just now got to the web interface so I dont know if it works but progress I am making progress. Good luck

### ⭐⭐⭐ 50% Failure rate
*by J***S on May 5, 2025*

Cannot access web page after 1 week. I have several of these and now replacing all with a different manufacturer as half of them loose access to the web page and seems that they are unrecoverable by resetting to MFG settings. It pings. Some units continue to process data, but you cannot get into the device via port 80 webpage. Some units continue to work fine. Some are just dead. About 50% Failure rate.

## Frequently Bought Together

- Usr-Tcp232-410S RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS (1)
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-07*