Usb to rs232 converters

The USB_RS232 cables are a family of USB to Serial levels serial UART converter cables incorporating FTDI's FT232RQ USB to serial UART interface IC device which handles all the USB signalling and protocols. The cables provide a fast, simple way to connect devices with a RS232 level serial UART interface to USB.

Each USB RS232 adapter 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 RS232 level shifter 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 USB side of 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 1 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-RS232 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.

Further resources :

http://www.blurty.com/users/usbryans11
http://usbcablestips4d.onsugar.com/Can-You-Utilize-USB-Together-Older-Products-13475198