Datasheet

• CH344 Datasheet

Software

• SSCOM software
• CH343 VCP driver for Windows
• Android APP
• MAC Driver

Specification

Interface Description

Function Description

The USB TO 4CH RS485 is an industrial-grade USB to 485 non-isolated converter. It incorporates the CH344L and SP485EEN original chips, providing enhanced stability and compatibility. It features built-in lightning protection, a resettable fuse, ESD, and TVS protection circuits, all enclosed in an aluminum alloy casing design. Operating it is simple, offering automatic transmit-receive conversion. It boasts characteristics such as high-speed, stable, reliable, and secure communication. This converter is suitable for various industrial control equipment or applications with demanding communication requirements.

How to Use

Windows

CDC Driver

The default driver for your computer is the CDC driver, which can be viewed through the device manager.

VPC Driver

The VCP driver is a manufacturer-specific driver that needs to be manually installed by the user. After installation, you can view it through the Device Manager.

Linux/RPI

Take RPI as an example, you can use the default driver, and after connecting the device, you can use it by querying the serial device name through the following command:

ls /dev/tty*

For example, to open the UART using minicom, enter the command line:

minicom -D /dev/ttyACM0

For example: use minicom to open UART0, then the command line input.

minicom -D /dev/ttyACM0

MacOS

• Please download and install the driver first.
• Click to learn how to install the driver.
• After installation, please open the assistant. (The serial debugging assistant can be downloaded directly by MAC.)

Android

• The Android software, download and decompress it and install it.
  

1. Open the APP and click Scan Device.         2. Click the scanned device.               3. Set the parameters to use.

Datasheet

• CH344 Datasheet

Software

• SSCOM software
• CH343 VCP driver for Windows
• Android APP
• MAC Driver

To：

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