Question about Belkin USB/Serial Portable Adapter (F5U409-CU) Serial Adapter

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Just bought the belkin F5U409-CU today, was unable to install it. Downloaded Belikin F5109 for windows vista. However I am unable to see my Royal daVinciDV3 screen in order for calibration.When i plug the PDA into usb port nothing happens?

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First of all you be sure that you do not have Vista on 64 ..cause this device is not compatible with Vista or windows 7 on 64..
If your vista is on 32 ..and the driver for both the adapter and the pda are installed than and only than will the computer communicate with the pda..
So be sure that you use the disk that came with the pda. and install the driver ..and be sure that the operating system that you have in use is not on 64 ..bit ...

Posted on Aug 02, 2010

  • Catalin Turcu
    Catalin Turcu Aug 02, 2010

    also ..if you use into the computer another port than the usb sure it is activated..and not ..go to device manager and in there click(right) on computer and after that scan for hardware changes... while the device is connected and on ...and also confirmed from the pda's display that you connect it ...(usually they ask when connect it confirm and choose the action ) ..
    this way you will se if the device is seen or not..
    another thing that you may do to go to bios of the computer ..and set it to optimal factory default s...this way you will activate any port that may have been disabled..Save changes with F10 ..and at reastart it should see the connection with the pda..



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Windows 7 not compitable with belkin usb to serial adapter

can you confirm if it is F5U409?
If so the solution would be to install windows vista drivers. in belkin site it says that windows 32bit are compatible with the adapter.

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Windows vista home premium can't recognize product and won't installI am using F5 theU257 v1 thethe compatible 32 bit for my 64 bit machine. Please Help. Thank You.

Download the appropriate Windows 7 driver from here:

Use the 64 bit one if you have a 64 bit OS, and a 32 bit one if you use a 32-bit OS.

Or you can download both, start with the 64 bit one. If it is not compatible, the installer will complain and abort.

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Will this work with vista home pre with 64 bit?

hello, No this model is not compatible with Vista 64 bit. its compatible with only 32 bit Vista.
However there is a similar model which is compatible with 64 bit Vista and the model number is F5U257 (USB-to-serial).

link from Belkin confirming F5U409 not compatible with 64 bit.

Hope this helps,

Good luck,

Kind regards,

Amar Sondhi

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3 Answers

Belkin f5u409 driver


Found a driver at Register with the site, search for f5u409 and the third one down I think is the Vista driver. Hopefully should solve your problem.

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