USB To RS-485 Converter
This is a USB to RS485 UART converter with transient overvoltage protection (TVS protection) and compliant with USB 2 and USB 1.1 standards. This Module does not require external power to operate, it can be powered directly from the USB port. The integrated electronics also include Tx and Rx LEDs which give a visual indication of data traffic. The RS-485 features a standard 4-screw terminal screw block for easy connection of individual wires. This module is ideal for PC/laptop applications and wiring extensions.
Features:
- TVS transient suppression protection
- Electrostatic ESD protection
- Surge protection
- Support short circuit protection
- Long communication distance
- Supports hot plugging/unplugging
- Automatically determines and controls the data transmission direction
Specifications:
- Baud rate range Support: 75-115.200Kbaud
- Can attach 256 related devices to the bus
- Size: 7cm x 2.6cm x1.3cm
- Protects from voltage spikes
- Communication range: up to 1.2KM
- Supports Windows 98/2000/XP/Vista/7/8/10, MAC OS X, and Linux
Usage:
- Download and install the CH340 driver ( http://pan.baidu.com/s/1gdzlAMJ )
- Wire the device according to the terminals.
- Insert the RS485 module into the computer's USB port, check the mapped serial port number in the “Device Manager” in "Control Panel", then select the corresponding serial port number in your application software, and open the serial port to send and receive data.
- Connect module to PC and check PC’s "Device manager" for a CH340 COM port. If the computer does not recognize module, uninstall the driver software and re-install.
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Open Serial communication software to send and receive data.
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