
If you're looking to convert RS485 signals to Ethernet, you have several converter solutions to choose from.
RS485 signals can be converted to Ethernet using a device called a media converter.
This type of converter allows you to extend the distance of your RS485 signal over Ethernet, making it a great option for industrial applications.
RS485 signals can be transmitted over Ethernet at speeds of up to 1 Gbps.
Consider reading: Rs485 to Fiber Optic Converter
Key Components
The key components of a good convertisseur rs485 are crucial for reliable and stable communication. The onboard original FT232RNL and SP485EEN chips provide better stability and compatibility, making them an ideal choice for industrial control equipment.
The USB signal is converted into a balanced differential RS485 signal, ensuring a stable transmission rate of 300-921600bps. This allows for reliable data transmission over long distances, with a maximum transmission distance of about 1.2km for RS485 and 5 meters for USB.
Here's a breakdown of the key components:
- USB to RS485 converter
- Original FT232RNL and SP485EEN chips
- TVS (Transient Voltage Suppressor) for lightningproof and anti-electrostatic protection
- Resettable fuse and protection diodes for over-current and over-voltage protection
- 3 LEDs for indicating power and transceiver status
Details

The key to a successful conversion lies in the details. In the case of USB to RS485 converters, the details are what make the difference between a reliable and a flaky connection.
The onboard chips, such as the original FT232RNL and SP485EEN, provide better stability and compatibility.
A reliable and fast communication is ensured by the FT232RL chip, which is an original chip that provides better compatibility.
The onboard TVS (Transient Voltage Suppressor) effectively suppresses surge voltage and transient spike voltage in the circuit, making it lightning-proof and anti-electrostatic.
The converter's ability to provide over-current and over-voltage proof is ensured by the onboard resettable fuse and protection diodes.
The 3 LEDs on the converter indicate the power and transceiver status, providing a clear visual indication of the converter's status.
Here are the key details of the converter:
- Supports USB to RS485 bidirectional conversion
- Operating voltage: 5V
- Transmission rate: 300-921600bps
- Transmission distance: about 1.2km for RS485, and about 5 meters for USB
- Operating temperature: -15℃ ~ 70℃
- Operating humidity: 5%RH ~ 95%RH
- Supported operating systems: Mac, Linux, Android, WinCE, Windows 11 / 10 / 8.1 / 8 / 7
Din-Rail Ethernet Converter
Din-Rail Ethernet Converters are a type of device that connects RS485 serial interfaces to a local area network for transmission of serial data over wired or wireless Ethernet.
Consider reading: Ethernet to Rs485 Adapter
They can be powered using Power over Ethernet (PoE) sources, specifically 802.3af.
These converters are perfect for industrial applications, where transmitting data from devices that use the standard RS485 data communications port is common.
Some Din-Rail Ethernet Converters are designed to operate in extreme temperatures, from -40°C to +74°C.
In particular, the Perle IOLAN Device Server is a high-performance, IPv6 compatible, RS485 to Ethernet solution that is perfect for Engineers and Project Managers.
Here are some key features of the Perle IOLAN Device Server:
Din-Rail Ethernet Converters can be very simple devices, but it is best practice to use one with advanced security functionality, data encryption, and user authentication to ensure network data transmissions, and access to network equipment is protected.
Installation and Configuration
To get started with your convertisseur RS485, you'll need to install the driver. Connect the module to your host PC and check the Device Manager - if you see a device listed with a yellow exclamation mark, it means the driver wasn't installed.
First, download the driver from the #Resources section, unzip it, and install it. This should make the yellow mark disappear and a COM device should be listed in the Device Manager.
After installing the driver, you'll need to configure the port number. Click Finish, then check your computer's Device Manager to confirm that the port number is working properly.
Driver Installation
To install the driver, first connect the module to your host PC and check the Device Manager. If the device is listed with a yellow exclamation mark, it means the driver wasn't installed.
You'll need to download the driver from the resources section, unzip it, and install it. After installation, the yellow exclamation mark should disappear, and a COM device should be listed.
Once you click Finish, check your computer's device manager to confirm that the port number is working properly.
Testing
To ensure your RS485 setup is working correctly, you need to test it.
You'll need two RS485 devices for this.
Connect the A+ pin of one device to the A+ pin of the other device, and the B- pin of one device to the B- pin of the other device. Then, connect both devices to your host PC.
Related reading: Rs485 Pin Assignment
Iolan to Ethernet Adapter
The IOLAN RS485 to Ethernet Converters are perfect for networking async devices such as variable frequency drives, motor drives, PLCs, HMIs, and smart meters to TCP/IP or UDP/IP. They offer high performance and IPv6 compatibility.
A Perle IOLAN Device Server is available with 1, 2, 4, or 8 RS485/422/232 Ports, making it suitable for a variety of applications. The device also supports DB9M, RJ45, or DB25F connectors.
The IOLAN RS485 to Ethernet Converters can operate in a wide temperature range of -40°C to +74°C. This makes them suitable for use in harsh environments.
The converters come in different configurations, including 1x RS485/422/232 Port with DB9M, RJ45, DB25F, or DB25M connectors. They also support 10/100/1000 RJ45 Ethernet.
Here are some key features of the IOLAN RS485 to Ethernet Converters:
- 1x RS485/422/232 Port with DB9M, RJ45, DB25F, or DB25M connectors
- 10/100/1000 RJ45 Ethernet
The converters are designed to provide a reliable and high-performance solution for networking async devices. They are perfect for applications that require a high degree of reliability and uptime.
Data Transmission
The RS485 converter allows for data transmission over long distances, with a maximum of 1,200 meters.
It uses a differential signaling method to transmit data, which is more reliable than single-ended signaling.
RS485 converters can support multiple devices on the same line, up to 32 devices.
This makes them ideal for industrial control systems and other applications where multiple devices need to communicate with each other.
RS485 converters can operate at speeds of up to 1.2 Mbps, which is fast enough for most industrial control applications.
They also support half-duplex communication, which means that devices can both send and receive data at the same time.
Product Information
A converser rs485 is a device that converts RS-232 signals to RS-485 signals, allowing for longer cable runs and higher data transfer rates.
The typical operating voltage for a converser rs485 is between 5 and 15 volts, with a recommended operating current of 100 mA.
RS-485 signals can travel up to 4000 feet without repeaters, making it a popular choice for industrial and commercial applications.
The maximum data transfer rate for RS-485 is 10 Mbps, with a baud rate range of 10 to 100 kbps.
A standard 9-pin D-sub connector is commonly used for RS-485 connections, with pin 2 and 3 being the transmit and receive lines respectively.
RS-485 is a differential signal transmission technology, meaning it sends both the positive and negative signals over two separate wires.
Applications and Uses
Perle offers technical consultations by phone or email to help you choose the best Device Server for your application.
You can reach out to Perle's technical engineers for assistance, and they have sales and technical support staff around the globe to support you when you need it.
RS485 to Ethernet Converter applications include using a Device Server to connect RS485 devices to an Ethernet network.
Perle's technical support staff is available to help you with your Device Server needs, whether by phone or email.
The RainbowLink Converter can be used to detect soil moisture by wiring it to an RS485 soil sensor, as shown in the application example.
Perle's technical engineers are available to provide guidance on choosing the right Device Server for your specific application.
Frequently Asked Questions
What is a RS485 converter?
A RS485 converter is a device that enables multiple serial devices to communicate over long distances, making it a crucial tool in industrial data acquisition and control applications. It allows for reliable and efficient data transmission between devices.
Is RS485 obsolete?
No, RS-485 is not obsolete. Despite being a legacy interface, it's still widely used in various applications.
Are RS485 and RJ45 the same?
RS485 and RJ45 are not the same, as RS485 uses differential signaling and typically requires specialized connectors, whereas RJ45 is commonly used for Ethernet connections.
Featured Images: pexels.com

