USB To RS485 Converter Module

The USB-RS485 is a fully automatic plug-and-play USB module that connects to your PC via the Universal Serial Bus (USB) port and provides robust USB to RS-485 protocol conversion with automatic RS-485 flow control.

This converter provides two ways serial communications signal conversion between the RS485 to and from a personal computer USB port using virtual serial COM port. Using the USB-RS485 module, one can connect up to 32 RS-485 devices simultaneously to a single USB port. Typically it is used for multi-drop communication.

Features:

• Self powered from USB.
• USB-RS485 converter provides a USB to RS485 serial interface with USB A / USB B connectors.
• EIA/TIA-485 communication interface with low power requirements.
• Output shorting is prevented by a thermal shutdown circuit.
• Supports 32 slaves on RS485 Bus.
• UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity.
• Fully integrated USB termination resistors.
• Fully integrated 1024 bit EEPROM storing device descriptors and CBUS I/O configuration.
• Data transfer rates from 300 baud to 5 Mbaud (RS485) at TTL levels.
• FIFO receives and transmits buffers for high data throughput.
• Device supplied pre-programmed with unique USB serial number.
• Integrated power-on-reset circuit.
• Fully integrated AVCC supply filtering - no external filtering required.
• USB 2.0 Full Speed compatible.
• FTDI‟s royalty-free VCP allow for communication as a standard emulated COM port and D2XX „direct‟ drivers provide DLL application programming interface.
• Visual indication of TX and Rx traffic via LEDs in the transparent USB connector.
• -40°C to 85°C extended operating temperature range.
• Supports devices with RS485 interface: PLC, HMI, surveillance cameras, video capture device, and fingerprint attendance machine.

APPLICATIONS

• USB to serial RS485 level converter.
• USB to RS485 industrial legacy device PLC / HMI / SCADA communication.
• USB Instrumentation PC interface
• Upgrading legacy peripherals to USB
• USB password protected file transfers.
• USB to RS485 Data Logging application
• USB to RS 485 industrial / instrumentation device Diagnostic application
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks
• DTE/DCE interface Application
• DMX512 Lighting Control Application.

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