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Cable, USB to USB NMC, FT232R, 2.5m


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Manufacturer Part No:
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USB Null Modem
Technical Datasheet:
USB NMC-2.5M   Datasheet
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Technical Docs (1)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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Product Overview

The USB NMC-2.5M is an USB to USB Null Modem Cable 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 The RS232 port has almost entirely been replaced by the USB port. 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. 2.5m cable which supports data transfer rate up to 3Mbaud at TTL levels.
  • USB Powered - no external power supply needed
  • Based on back to back FTDI FT232RQ devices
  • Entire USB protocol handled by USB connector encapsulated electronics
  • USB type-A connector on both ends of cable
  • Data transfer rates from 300baud to 3Mbaud at TTL levels
  • Lower Operating (20mA) and USB suspend mode current (70µA)
  • Support for USB suspend and resume
  • USB 2.0 full speed compatible


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