FTDI USB-COM485-PLUS-1 开发模块, USB-RS485, 1通信口
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.
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- Adds one RS-485 serial port by connecting to USB
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- Easy plug & play installation and RS-485 device connection
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- Works with USB 1.1 & 2.0 Host and Hub ports
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- Industry standard FTDI chip set & device drivers for maximum compatibility
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- Microsoft Windows WHQL-certified, Mac OS X, Linux and Windows CE device drivers
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- Installs as a standard Windows COM port
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- Supports Windows Server 2008, 2003, Vista, XP, 2000, Linux, Mac OS X
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- FIFO with 128 byte transmit buffer, 256 byte receive buffer
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- RS-485 data signals: Data+, Data-, GND. Serial port speed up to 3Mbps
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- Powered by USB port. No external power adapter required