RS485 to USB Converter, PRO

Our high quality Pro grade RS485 to USB Converter is optimized for all new versions of Windows, Linux, and Mac. It is suitable for most applications, including industrial, commercial, and any general office computer device.

This particular RS485 to USB Converter is designed with a high-performance quality processor chip and conversion circuitry, which makes it one of the most reliable adapters on the market. It converts USB signals into RS485 signals, ensuring seamless data transfer and efficient connectivity. It acts as a bridging interface between USB and RS485/RS422 devices. Additionally, it is fully compatible with PCs, enabling effective communication with RS485 units.

This RS485 to USB Converter is powered from the computer’s USB port, so no additional external power source is needed. The RS485 / RS422 end is a standard 9-pin D-sub connector with an optional screw terminal board included for easy connection of cables or single wires. It supports various RS485 configurations, including 2 wire and 4 wire options with different connector types like DB9 and terminal blocks.
A nice feature is that this converter has LED indication lights for the TX, RX and Power lines. This will help you troubleshoot and determine if data is actually transferred or received by your serial device.

After installing the included drivers and connecting the converter to your computer’s USB port, it will show up as a virtual serial COM port in Windows Device Manager where you can manage and configure it like if it was a standard built-in serial COM port. The converter transmits data received on the RS485 bus to the PC, ensuring effective data transmission.

It is built around the high-end quality chip FT232BL from FTDI Semiconductors, which is one of the best and most reliable USB to RS485 / RS422 converter processors on the market, with a SP485E RS485 / RS422 transceiver from Exar Corporation. It is also fully compatible with Windows Vista, highlighting its versatility and widespread usability across different operating system versions.

Make no mistake, this is the original RS485 to USB converter part number XS890 which is designed around an industry proven high-performance and highly reliable processor chip and conversion circuitry. This is also the reason why this RS485 to RS485 converter is priced higher slightly than many other RS485 to USB converters, even these other cables looks the same on the outside.

Useful optional accessories (not included)

Null modem adapter

DB9 - RJ45 adapter

Gender Changer

What is RS485 to USB Conversion?

RS485 to USB conversion is the process of transforming RS485 signals into USB signals, enabling seamless communication between devices with RS485 interfaces and computers or other devices equipped with USB ports. This conversion is typically achieved using a USB to RS485 adapter or converter, which serves as a bridge between the two interfaces. The adapter translates the RS485 signals into USB signals, allowing data to be transmitted efficiently between the connected devices. This process ensures that devices with different communication protocols can interact without any compatibility issues, making it an essential tool in various applications.

Benefits of Using a USB to RS485 Converter

Using a USB to RS485 converter offers several significant benefits, including:

• Easy connectivity: USB to RS485 converters provide a straightforward and convenient way to connect RS485 devices to computers or other devices with USB ports, eliminating the need for complex wiring or additional hardware.

• Increased compatibility: By converting RS485 signals to USB signals, these converters enable communication between devices that would otherwise be incompatible, ensuring seamless integration across different systems.

• Improved data transfer: USB to RS485 converters support high baud rates, allowing for fast and reliable data transfer between devices. This ensures that data is transmitted quickly and accurately, which is crucial for time-sensitive applications.

• Multi-device support: Many USB to RS485 converters can support multiple devices on a single network, making them ideal for industrial and commercial applications where numerous devices need to communicate simultaneously.

Choosing the Right Converter

When selecting a USB to RS485 converter, several factors should be taken into account to ensure optimal performance and compatibility:

• Compatibility: Verify that the converter is compatible with the devices and operating systems you are using. This includes checking support for Windows, Linux, and Mac systems.

• Baud rate: Choose a converter that supports the required baud rate for your specific application. Higher baud rates allow for faster data transmission, which can be critical for certain tasks.

• Number of devices: Consider the number of devices that need to be connected. Select a converter that can support multiple devices if necessary, to accommodate your network requirements.

• Power requirements: Determine whether the converter requires an external power source or if it can be powered directly from the USB port. USB-powered converters offer greater convenience and reduce the need for additional power supplies.

Industrial Applications and Real-World Examples

USB to RS485 converters are widely used in various industrial and commercial applications, demonstrating their versatility and importance:

• Factory automation: These converters are essential for connecting devices such as programmable logic controllers (PLCs), motor drives, and sensors to computers or other control systems, facilitating efficient factory automation.

• Process control: In process control environments, USB to RS485 converters connect devices like temperature controllers, pressure sensors, and flow meters to computers, ensuring precise monitoring and control of industrial processes.

• Building automation: These converters play a crucial role in building automation systems by connecting devices such as lighting controllers, HVAC systems, and security systems to central control units, enhancing the overall efficiency and functionality of building management systems.

Technical Specifications and Comparison

When comparing USB to RS485 converters, it is important to consider several technical specifications to ensure you select the right device for your needs:

• Baud rate: Check the maximum baud rate supported by the converter to ensure it meets the speed requirements of your application.

• Number of devices: Determine the maximum number of devices that can be connected to the converter, especially if you need to support multiple devices on a single network.

• Power requirements: Assess whether the converter requires an external power source or if it can be powered from the USB port. USB-powered converters offer greater convenience and flexibility.

• Compatibility: Ensure the converter is compatible with the operating systems and devices you plan to use, including support for Windows, Linux, and Mac.

• Cable length: Consider the maximum length of the cable supported by the converter, as this can impact the placement and connectivity of your devices.

• Data transfer rate: Evaluate the rate at which data can be transferred between devices, as higher data transfer rates can improve the efficiency and performance of your system.

• Error detection and correction: Look for converters that offer robust error detection and correction methods to ensure reliable and accurate data transmission, minimizing the risk of communication errors.

By considering these factors, you can make an informed decision and choose the USB to RS485 converter that best meets your specific requirements.