# Gravity: Active Isolated RS485 to UART Signal Converter Module

**Type:** Product page · **SKU:** DFR0845 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-active-isolated-rs485-to-uart-signal-converter-module.html ([markdown](https://core-electronics.com.au/gravity-active-isolated-rs485-to-uart-signal-converter-module.html.md))

isolated RS485 to UART signal transfer module comes with protection circuits such as power isolation and TVS...

## Pricing

- **Price:** $33.45 (inc GST) — $30.41 AUD, exc GST
- **Quantity discounts:** 6+ $28.89 (exc GST) · 12+ $27.67 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 6 today, and up to 200 more in 8–12 days.

## Description

This active, **isolated RS485 to UART signal transfer module** comes with protection circuits such as powerisolation and TVS.

Compatible with most main controllers, it has the characteristics of fast communication speed,stable and reliable performance, high safety, etc.

It can be applied to various industrial sensors,industrial control equipment or applications that require RS485 signal conversion.

 **![](https://core-electronics.com.au/attachments/localcontent/withArduino_15156373662.png)**

**Connect with Arduino Board**

**![](https://core-electronics.com.au/attachments/localcontent/Connection-Diagram_112446a7dc1.png)**

**Connection Diagram (Use serial port to read sensor data)**

**![](https://core-electronics.com.au/attachments/localcontent/Overview_541693c6593.png)****Board Overview**

###  Features

11. Fast communication speed
12. Stable and reliable performance
13. High safety
###  Applications

15. Industrial sensors
16. Industrial control equipment
17. Applications that require RS485 signal conversion
###  Specification

19. Power Supply Voltage: 3.3~5V
20. Communication baud rate up to 1M bps
21. Up to 12V-2W power output (output current is about 160mA)
22. Isolation voltage 3000 VDC
23. Bus electrostatic protection capacity is up to 15kV
24. 1/8 unit load, bus load capacity up to 256 nodes
25. Bus fail protection and bus drive short circuit protection
26. Operating temperature range: -40°C to +105°C
  **Documents**28. [Product wiki](https://wiki.dfrobot.com/Gravity_Active_Isolated_RS485_to_UART_Signal_Converter_SKU_DFR0845)
29. [TDH541S485H datasheet](https://core-electronics.com.au/attachments/localcontent/32725c6cf54f67066f04dcfa2d24f49a_15470c82fe9.PDF)
30. [Schematics](https://core-electronics.com.au/attachments/localcontent/9810c322218d9643776c845e0c95d0d2_2196286c66f.pdf)
31. [Dimension and Component Layout](https://core-electronics.com.au/attachments/localcontent/f861cacb52fe79580017a83714640491_20883725d6d.pdf)
###  Parts List

33. Gravity: Active Isolated RS485 to UART Signal Converter Module x1
34. Gravity-4pin UART Cable x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_2419.jpg)