---
title: "WIZnet Success Stories : Sena IT TMS"
url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories--sena-it-tms/"
markdown_url: "https://maker.wiznet.io/Alan/resellers/wiznet-success-stories--sena-it-tms/md"
type: "VAR: Value-Added Reseller Products"
author: "Alan"
author_url: "https://maker.wiznet.io/Alan/"
original_author: "Alan"
published: "2025-02-19"
language: "en"
likes: 1
views: 2210
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# WIZnet Success Stories : Sena IT TMS

> Sena IT's TMS is a relay-type power controller using the WIZ752SR-125 module.

Original author: Alan

## Article

Sena IT primarily manufactures devices used in the exhibition and cultural industry, such as museums. Its business items include remote audio playback systems and video playback systems.

![](https://maker.wiznet.io/upload/ckeditor5/553980089%5F1739954255%2Epng)

### The challenge

Sena IT wanted an industrial-grade RS-232 to Ethernet module. They preferred a module with two RS-232 ports instead of just one. Typically, around 50 of these systems are implemented in a single museum. Although the communication is relatively simple, the nature of their business demands high reliability, as any product failure could significantly impact trust. Therefore, they required a robust and powerful module.

### The solution

The WIZ752SR-125 is the perfect module for this requirement. It meets strong industrial specifications and features two RS-232 ports. Control is extremely simple—just switch ports as needed.

![WIZ752SR-125](https://docs.wiznet.io/assets/images/2-6c05a4c0507a7375b68de223ac794074.png)

Sena IT used one RS-232 port of the WIZ752SR-125 for internal relay control and the other port to connect external devices to the cloud.

![](https://maker.wiznet.io/upload/ckeditor5/553980089%5F1739954990%2Epng)

![](https://maker.wiznet.io/upload/ckeditor5/553980089%5F1739954998%2Epng)

![](https://maker.wiznet.io/upload/ckeditor5/553980089%5F1739955004%2Epng)

The specifications are as follows: An AC cable is connected to the product, and power is controlled via the cloud. An internal SMPS is installed. Although it is a simple device, durability is crucial in field applications. Since adopting the WIZ752SR-125, there have been no communication-related issues for several years.

![](https://maker.wiznet.io/upload/ckeditor5/553980089%5F1739955180%2Epng)

### Why WIZ752SR-125?

WIZnet offers a close-support system, including Custom Service. We visit customers, identify issues, and provide tailored solutions. This approach enables fast and efficient project completion.

The recommended WIZ752SR-125 is a widely used module in industrial environments. It is highly resistant to noise and allows easy use of up to two RS-232 ports. Configuration can be done using the Configuration Tool, via AT commands over RS-232, or even remotely through a web interface.

---

Source: https://maker.wiznet.io/Alan/resellers/wiznet-success-stories--sena-it-tms/