Question about RS232

sowen010599
sowen010599 Posts: 343
edited February 2004 in Electronics
I have the Yamaha RX-2400 connected to a computer using the serial port. I just happened to have one of these serial cables lying around and it works fine but heres the thing, I want a longer one. What I don't know is if this cable is a regular cable or a "null-modem" cable. I have no idea where the one I have came from or what it is.

To cut the crap, would one use a "regular" serial cable (DB9/DB9 F/F) or a "null-modem" cable.

The difference between the two is the TX and RX wires on a "null-modem" cable are crossed.

Yamaha only supports this feature to dealers so contacting them was, well, lets just say.....interesting. "HOW DID YOU GET THE SOFTWARE!? WHO GAVE IT TO YOU!?" "Ummmmm, I downloaded it from YOUR WEBSITE!". Idiot.

So come on fellas, help a guy out pleeeeeeeez.
Go BIG or go home!
Post edited by sowen010599 on
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Comments

  • phoneisbusy
    phoneisbusy Posts: 867
    edited February 2004
    Would you happen to have a multi-meter handy? A continuity test on the Rx Tx pins should tell you want you need to know. Either that or a break out box...

    Good luck

    Dave
    Time is the best teacher. Unfortunately it kills all its students.
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  • fireshoes
    fireshoes Posts: 3,167
    edited February 2004
    I also use the serial cable to connect my RXV2400 to the computer. It uses a null modem cable. So if you already are using a null modem cable and want to add an extension, the extension will be a regular cable. I got my cables from pccables.com for about $15 for 25' total. It would have been about $33 from CompUSA. I think the software is great, but they should have it available for everybody. It is a big selling point so I tell all my customers about it. They need some documentation for it too. By the way, for real fun you can set up the home bank section to have different YPAO configurations (flat, low, mid, high, front, or seating locations).
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  • sowen010599
    sowen010599 Posts: 343
    edited February 2004
    Hey thanks fireshoes!

    The RS232 feature does rate highly on the coolness factor. And to be honest, I find it much easier to control the unit that way. Everything is laid out right in-front of you. No difficult on-screen menus to operate, and lets be honest, the way you use the menu/remote flat out suck on the Yamaha's. It takes some getting used to. If they were to advertise this feature's usefulness, and bundle the software with the unit, I think they would sell much more RS232 equipped units.

    If they would have demoed this feature for me at the dealer, I would have been even more likely to buy it. If the rest of you all ever get a chance to see/use a feature like this, check it out. It is very, very, nice (yes, $200 nice).
    Go BIG or go home!
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  • phoneisbusy
    phoneisbusy Posts: 867
    edited February 2004
    So, they charge $200 for the software?

    regards

    Dave
    Time is the best teacher. Unfortunately it kills all its students.
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  • sowen010599
    sowen010599 Posts: 343
    edited February 2004
    No, the difference between the RX-V2400 and the RX-V1400 is pretty much just few watts, this feature, and 200 bucks.

    The software is free for all capable Yamaha's and availible here,
    http://www.yamaha.com/yec/dealersite/downloads/ds_download.htm
    Go BIG or go home!
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