---
product_id: 61474910
title: "RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V)"
brand: "knacro"
price: "€ 18.17"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/61474910-rs422-to-ttl-uart-mcu-serial-port-signal-mutual-conversion
store_origin: HR
region: Croatia
---

# Over-Voltage Protection Full-Duplex Signal Over-Current Protection RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V)

**Brand:** knacro
**Price:** € 18.17
**Availability:** ✅ In Stock

## Summary

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## Quick Answers

- **What is this?** RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) by knacro
- **How much does it cost?** € 18.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/61474910-rs422-to-ttl-uart-mcu-serial-port-signal-mutual-conversion)

## Best For

- knacro enthusiasts

## Why This Product

- Trusted knacro brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Design:** Includes power and send/receive indicator lights for easy monitoring.
- • **Versatile Application:** Ideal for harsh environments, making it perfect for various projects.
- • **Enhanced Signal Integrity:** SMD components ensure superior signal transmission and system EMC.
- • **Seamless Signal Conversion:** Effortlessly switch between 3.3V/5V TTL and RS422 signals.
- • **Robust Protection Mechanisms:** Built-in over-voltage and over-current safeguards for reliable performance.

## Overview

The RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module is designed for seamless signal conversion between 3.3V/5V TTL and RS422 levels. It features robust over-voltage and over-current protection, ensuring the MAX490 chip operates safely. With SMD components for enhanced signal integrity and user-friendly indicators, this module is perfect for applications in challenging environments.

## Description

KNACRO RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V)

## Features

- The module is suitable for 3.3V/5V TTL and RS422 signal mutual conversion, RS422 level is full-duplex level signal, the use of this module can be achieved SCM serial port and RS422 signal conversion.
- With over-voltage and over-current protection circuit real-time protection RS422 level signal to protect the MAX490 chip's normal work.
- The module except for the pin, Use SMD components to ensure better signal transmission, thereby enhancing the system EMC and other characteristics, the module as possible in more harsh environments.
- With power and send & receive Indicator lights.
- The back of the product with wiring diagram.

## Images

![RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) - Image 1](https://m.media-amazon.com/images/I/812UQ18vlXL.jpg)
![RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) - Image 2](https://m.media-amazon.com/images/I/81u8t+qAKAL.jpg)
![RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) - Image 3](https://m.media-amazon.com/images/I/819UIBecGkL.jpg)
![RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) - Image 4](https://m.media-amazon.com/images/I/81zwIlpSxhL.jpg)
![RS422 to TTL/UART/MCU Serial Port Signal Mutual Conversion Module with Over-Voltage Over-Current Protection- (5V) - Image 5](https://m.media-amazon.com/images/I/81jFv3ArmFL.jpg)

## Available Options

This product comes in different **Size** options.

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**Shop now:** [https://www.desertcart.hr/products/61474910-rs422-to-ttl-uart-mcu-serial-port-signal-mutual-conversion](https://www.desertcart.hr/products/61474910-rs422-to-ttl-uart-mcu-serial-port-signal-mutual-conversion)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-25*