---
title: "WIznet Success Stories: Cartridge Tester System Using W55RP20 for Serial-to-Ethernet Connectivity"
url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-cartridge-tester-system-using-w55rp20-for-serial-to-ethernet-connectivity/"
markdown_url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-cartridge-tester-system-using-w55rp20-for-serial-to-ethernet-connectivity/md"
type: "VAR: Value-Added Reseller Products"
author: "tncore"
author_url: "https://www.tngroup.co.kr/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "tncore"
original_url: "https://www.tngroup.co.kr/"
published: "2026-03-22"
language: "en"
likes: 0
views: 427
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# WIznet Success Stories: Cartridge Tester System Using W55RP20 for Serial-to-Ethernet Connectivity

> Cartridge Tester System Using W55RP20 for Serial-to-Ethernet Connectivity

Original author: tncore (source: https://www.tngroup.co.kr/)

## Article

## Overview

![](https://maker.wiznet.io/upload/ckeditor5/1005912627%5F1774217176%2Epng)

In industrial environments, testing equipment plays a critical role in ensuring product quality and reliability. Efficient data communication between testing devices and central management systems is essential for real-time monitoring and process optimization.

**TNcore**, a company under TN Group, developed a **cartridge tester system** designed to evaluate and manage cartridge-based products in production environments. To enable reliable network communication, the system integrates **WIZnet’s W55RP20**, utilizing its Serial-to-Ethernet functionality.

This approach allows the tester to seamlessly transmit data from serial interfaces to Ethernet-based systems, supporting centralized monitoring and automation.

---

## Background

![](https://maker.wiznet.io/upload/ckeditor5/1005912627%5F1774217580%2Epng)

Cartridge testing equipment typically communicates using **serial interfaces such as UART**, which are simple and widely used in industrial devices. However, these interfaces present limitations when integrating with modern network-based systems:

- Limited communication distance

- Difficulty in centralized monitoring

- Lack of direct connectivity to Ethernet networks

As manufacturing environments become more connected, there is increasing demand for solutions that can **bridge serial devices to Ethernet networks** efficiently and reliably.

---

## Solution

![](https://maker.wiznet.io/upload/ckeditor5/1005912627%5F1774217593%2Epng)

To address these challenges, TNcore implemented a **Serial-to-Ethernet solution using WIZnet’s W55RP20**.

The W55RP20 combines an MCU and a hardwired TCP/IP Ethernet controller in a single chip, enabling compact and efficient system design.

In the cartridge tester system:

- Serial data from the tester is transmitted via UART

- W55RP20 converts serial communication into Ethernet packets

- Data is sent to a central server or monitoring system

This enables real-time data collection, remote monitoring, and integration with factory automation systems.

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## System Architecture

The system consists of the cartridge tester device, a communication module, and a central monitoring system.

![](https://maker.wiznet.io/upload/ckeditor5/1005912627%5F1774217163%2Epng)

The W55RP20 acts as a bridge between serial-based equipment and Ethernet infrastructure, enabling seamless data flow across the system.

---

## Key Technologies

### W55RP20

The **W55RP20** is an integrated MCU with a hardwired TCP/IP Ethernet controller, designed for efficient network-enabled embedded systems.

Key features include:

- Built-in TCP/IP stack

- Integrated MCU and Ethernet controller

- Serial-to-Ethernet conversion capability

- Reduced system complexity and BOM

This integration simplifies development while ensuring reliable communication in industrial environments.

---

## Benefits

By adopting the W55RP20-based Serial-to-Ethernet solution, the system achieves:

- **Seamless integration of serial devices into Ethernet networks**

- **Real-time monitoring of test results**

- **Improved data accessibility and centralized control**

- **Reduced hardware complexity through integrated design**

- **Enhanced scalability for industrial applications**

This enables manufacturers to improve operational efficiency and maintain higher quality standards.

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## Conclusion

As industrial systems continue to evolve toward connected and automated environments, bridging legacy interfaces with modern networks becomes increasingly important.

By utilizing **WIZnet’s W55RP20**, TNcore successfully developed a cartridge tester system that converts serial communication into Ethernet-based data flow, enabling real-time monitoring and integration with centralized systems.

This solution demonstrates how Serial-to-Ethernet technology can enhance industrial testing systems and support smart manufacturing infrastructure.

---

Source: https://maker.wiznet.io/Alan/resellers/wiznet-success-stories-cartridge-tester-system-using-w55rp20-for-serial-to-ethernet-connectivity/