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USB to a Quad Interface RS422 Level Serial UART Adaptor

USB-COM485-PLUS1 - USB to a Quad Interface RS422 Level Serial UART Adaptor

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Manufacturer Part No:
Newark Part No.:
Technical Datasheet:
USB-COM485-PLUS1   Datasheet
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Product Overview

The USB-COM485-PLUS1 module is a single channel USB to RS485 communication device. The integrated electronics of the USB-COM485-PLUS1 utilise the FTDI FT232R and includes RS485 level shifters plus Power/TXD/RXD LEDs to provide a visual indication of data traffic through the module. The module uses a standard USB-B device connector for connection to an upstream host or hub port. RS485-level signals are available on an industry-standard DE-9P connector. The maximum RS485-level data rate is 3Mbps. Pin 9 of the DE-9P connector can provide +5V DC at 250mA. The USB-COM485-Plus1 module requires USB device drivers, which are used to make the USB-COM485-Plus1 appear as a Virtual COM Port (VCP). This allows existing serial communications software such as HyperTerminal to exchange data through the USB-COM485-Plus1 to a legacy RS485 peripheral device.
  • Adds one RS-485 serial port by connecting to USB
  • Easy plug & play installation and RS-485 device connection
  • Works with USB 1.1 & 2.0 Host and Hub ports
  • Industry standard FTDI chip set & device drivers for maximum compatibility
  • Microsoft Windows WHQL-certified, Mac OS X, Linux and Windows CE device drivers
  • Installs as a standard Windows COM port
  • Supports Windows Server 2008, 2003, Vista, XP, 2000, Linux, Mac OS X
  • FIFO with 128 byte transmit buffer, 256 byte receive buffer
  • RS-485 data signals: Data+, Data-, GND. Serial port speed up to 3Mbps
  • Powered by USB port. No external power adapter required


Communications & Networking, Wireless, Portable Devices, Medical, Security, Audio, Industrial, Consumer Electronics, Sensing & Instrumentation, Imaging, Video & Vision


In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.

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