Usb To Rs485 Serial Converter Cable

The USB-RS485 cable is a USB to RS485 levels serial UART converter cable incorporating FTDI’s FT232RQ USB to serial UART Interface IC device which handles all the USB signalling and protocols. The cable provides a fast, simple way to connect devices with a RS485 Interface to USB Each USB RS485 cable contains a small internal electronic circuit board, utilising the FT232R which is encapsulated into the USB connector end of the cable. The FT232R datasheet, DS FT232R is available at http://www.ftdichip.com. The integrated electronics also include the RS485 transceiver plus Tx and Rx LEDs which give a visual indication of traffic on the cable (if transparent USB connector specified). The other end of the cable is bare, tinned wire ended connections by default, but CAN be customised using different connectors to support various applications. Cables are FCC, CE, RoHS compliant. The cable is USB powered and USB 2.0 full speed compatible. Each cable is 1.8m long and supports a data transfer rate up to 3 Mbaud. Each cable supports the FTDIChip,ID™, with a unique USB serial number programmed into the FT232R. This feature CAN be used to create a security or password protected file transfer access using the cable. Further information and examples on this feature are available at http://www.ftdichip.com under FTDIChip,ID Projects. The USB RS485 cables require USB drivers, available free from http://www.ftdichip.com, which are used to make the FT232R in the cable appear as a virtual COM port (VCP). This then allows the user to communicate with the USB Interface via a standard PC serial emulation port (for example TTY). Another FTDI USB driver, the D2XX driver, CAN also be used with application software to directly access the FT232R on the cable though a DLL. This is illustrated in the Figure 1.1
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Usb To Rs485 Serial Converter Cable application circuits
Usb To Rs485 Serial Converter Cable application circuits



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