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691.2kbps RS485 PC interface?

Discussion in 'Hobby Electronics' started by Dand, Nov 23, 2005.

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  1. Dand

    Dand Guest

    I haven't been able to find a 691.2kbps PC interface card, like a PCI card.
    They only seem to support the 250k 500k 960k etc. To hook up the device im
    working with they want 2k$ for a 4 port 691.2k pci interface card.....
     
  2. MC

    MC Guest

    One reason could be is that 691.2kbps needs an uncommon baudrate
    frequency if you don't want a lot of data errors.
     
  3. FruitLoop

    FruitLoop Guest

    Or run it at a slower baud rate Maybe 500k may work if its adjustable at
    the client end
     
  4. Dand

    Dand Guest

    I wish, I swear they have deliberatly done this to make me buy their card...
    their product aint looking so good any more. Looks like ill have to make a
    691.2 to 960 converter....
     
  5. Ken Taylor

    Ken Taylor Guest

    This one's about US$100 - any good?

    Cheers.

    Ken
     
  6. Ken Taylor

    Ken Taylor Guest

  7. Dand

    Dand Guest

    They specifically mention 691.2k, so maybe it is a 'standard'....?

    Thanks they look good, but where about do they specifically mention 691.2??
    I can only see it says 50bps to 921.6, even in the data sheet :-(
     
  8. Ken Taylor

    Ken Taylor Guest

    Put it down to dyslexia. I'm a member of NAD, the National Dyslexics
    Association.

    Cheers.

    Ken
     
  9. FruitLoop

    FruitLoop Guest

    I have a quadtech pcmcia serial card on my notebook and it can run both
    16550 and 17550 uart speeds up to about a meg per second

    Maybe check out their 485 cards for an option
     
  10. FruitLoop

    FruitLoop Guest

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