CUB-100-BK FTDI

Future Technology Devices International Ltd USB NMC-2.5m USB to USB Null Modem Cable Datasheet Document Reference No.: FT_000054 Version 1.00 Issue Date: 2008-07-16 Future Technology Devices International Ltd (FTDI) 373 Scotland Street, Glasgow G5 8QB United Kingdom Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758 E-Mail (Support): [email protected] Web: Document Reference No.: FT_000056 USB NMC-2.5m USB To USB Null Modem Cable Datasheet Version 1.00 Clearance No.: FTDI# 40 1 Description The USB to USB Null Modem Cable is a modern replacement for the traditional serial null modem cable. The traditional null modem cable was used to connect two PCs via their RS232 serial ports, but fewer modern PCs continue to implement the RS232 serial port. The RS232 port has almost entirely been replaced by the USB port. However there is still a need to transfer files between PCs that are not networked. The FTDI USB Null Modem Cable (NMC) solves this problem and allows a user to connect two PCs using their USB ports. The user can then perform file transfers between the PCs via the USB interface. The NMC cable contains a small internal electronic circuit board encapsulated into the USB connector at both ends of the cable. The electronics is based on the FTDI FT232R USB to Serial UART IC and handles all the USB signalling and protocols. The FT232R datasheet, DS_FT232R, is available at