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Serial Port Card?

Akilae729Akilae729 Registered User regular
edited February 2009 in Help / Advice Forum
I need to connect something that connects through a RS 232 interface to a computer (Dell) that doesn't have any serial ports.

I assume that I can simply get a PCI card that adds this functionality to my machine. However, looking at serial port cards the prices range from about $30 to well over $200 and I can't figure out what i'm missing to create these massive price differences.

http://www.newegg.com/Product/Product.aspx?Item=N82E16815150096

To me something like this looks fine. (Probably will just drive to Frys later in the week and pick up something similar)

Will a simple card like this suit my purposes, or is there more to serial ports than meets the eye?

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Akilae729 on

Posts

  • Count FunkulaCount Funkula Registered User regular
    edited February 2009
  • ThomamelasThomamelas Only one man can kill this many Russians. Bring his guitar to me! Registered User regular
    edited February 2009
    Akilae729 wrote: »
    I need to connect something that connects through a RS 232 interface to a computer (Dell) that doesn't have any serial ports.

    I assume that I can simply get a PCI card that adds this functionality to my machine. However, looking at serial port cards the prices range from about $30 to well over $200 and I can't figure out what i'm missing to create these massive price differences.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16815150096

    To me something like this looks fine. (Probably will just drive to Frys later in the week and pick up something similar)

    Will a simple card like this suit my purposes, or is there more to serial ports than meets the eye?

    That card should be fine for normal RS-232 stuff. Or do you need RS-422 or RS-485 as well?

    Thomamelas on
  • Akilae729Akilae729 Registered User regular
    edited February 2009
    Thomamelas wrote: »
    Akilae729 wrote: »
    I need to connect something that connects through a RS 232 interface to a computer (Dell) that doesn't have any serial ports.

    I assume that I can simply get a PCI card that adds this functionality to my machine. However, looking at serial port cards the prices range from about $30 to well over $200 and I can't figure out what i'm missing to create these massive price differences.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16815150096

    To me something like this looks fine. (Probably will just drive to Frys later in the week and pick up something similar)

    Will a simple card like this suit my purposes, or is there more to serial ports than meets the eye?

    That card should be fine for normal RS-232 stuff. Or do you need RS-422 or RS-485 as well?

    Just RS-232. I'll probably go to Frys on Thursday when I can drive there on the clock and find something similar.

    As far as the USB adapter cable goes, the device I'm using actually has a USB connection option, however the drivers written for it are piss poor. Tech support actually recommended the serial connection as more reliable.

    Akilae729 on
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  • ecco the dolphinecco the dolphin Registered User regular
    edited February 2009
    Akilae729 wrote: »
    As far as the USB adapter cable goes, the device I'm using actually has a USB connection option, however the drivers written for it are piss poor. Tech support actually recommended the serial connection as more reliable.

    I think he meant a USB -> serial port adapter, as opposed to the PCI adapter that you're looking for. Then plug your device into the serial port, and you're set.

    ecco the dolphin on
    Penny Arcade Developers at PADev.net.
  • pacbowlpacbowl Los AngelesRegistered User regular
    edited February 2009
    SIIG makes a good serial card. So does NetMos. I find no-name brands hard to get drivers for or half the time the included ones don't work.

    If you're going to go the usb > serial route I'd get a name brand like Belkin.

    I agree. Most usb virtual serial drivers are crap. I'm still testing the Ingenico ones.

    I'm curious, what do you need the rs 232 card for? There aren't any tricks. If you just need an rs 232 port then a $30 addon card will work fine.

    pacbowl on
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  • edited February 2009
    This content has been removed.

  • Akilae729Akilae729 Registered User regular
    edited February 2009
    Its actually to connect a laser interferometer.

    The computer that has the required data acquisition software does not have a serial port and the interferometer has the option to be connected via Serial port or USB.

    Its the USB drivers, as well as the handling of a USB channel in the interferometer software that are sub par. So im going to simply use a serial connection.

    $30 card will do just fine

    Akilae729 on
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  • edited February 2009
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  • pacbowlpacbowl Los AngelesRegistered User regular
    edited February 2009
    If you want total compatibility I'd go with the serial card. You never know what issues could pop up with the usb > serial adapter and the card is the closest you can get to an integrated serial port.

    It's cheaper unless you think you'll need a com2 sometime in the future.

    pacbowl on
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  • edited February 2009
    This content has been removed.

  • pacbowlpacbowl Los AngelesRegistered User regular
    edited February 2009
    Integrated serial/lpt is the best. If the MB has built in serial and lpt ports you can can un/reinstall via device manager and 9 times out of 10 windows will see it and the default MS drivers will work fine without rebooting even. If you uninstall a SIIG or some other 3rd party card, then you need the drivers to get it going again. Some builds may see it by default, some may not but in my experience all legacy serial/lpt ports on almost all motherboards have no problem.

    I work with LCPD's, ELO Touchscreens, Ingenico pinpads (like you see at 7-11), OPOS printers and other out-of-date devices that require com/lpt ports and other archaic interfaces. We regularly have clients buying new computers that they can't use old peripherals on so I'm used to having people upgrade.

    pacbowl on
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