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DIY USB data connector question

Discussion in 'Hardware' started by doogdoog, Dec 14, 2011.

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  1. doogdoog

    doogdoog Thread Starter

    Joined:
    Apr 15, 2001
    Messages:
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    Aloha,
    I want to make a USB to USB data connector to connect two computers together to transfer data. All the one's that I saw , had a plastic bulge in the middle of the cable. Is that a splice point or does it have some electronics in it? I know that the USB has 4 contacts being that pin 1 is + batt, pin 2 & 3 are the data xmt and rcv, and pin 4 is the - batt. I would think that all that is needed to make your own transfer data cable is to reverse the xmt and rcv wires in the cable. Any thought to this?

    Mahalo,
    doogdoog
     
  2. Frank4d

    Frank4d Retired Trusted Advisor

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    Messages:
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    The data transfer cables used to connect two computers together do have electronics so that each computer can be a peripheral to the other. Wiring two cables together won't accomplish that, and you would need drivers. In the case of wiring pin 1 together on both ends, doing so will probably damage both computers.

    If you want to transfer data between two computers that have operating systems installed, you can do that with an ethernet crossover cable connected between them. A straight cable will work if one or both computers has auto polarity sensing (most do).
     
  3. doogdoog

    doogdoog Thread Starter

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    Aloha Frank4d,
    Thanks for the reply and maybe I have to get one of those cables and see what is in that plastic bulge.

    Mahalo,
    doogdoog
     
  4. doogdoog

    doogdoog Thread Starter

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    Aloha Frank4d,
    I went over to Best Buy (not many large computer stores here) to look for one of those data transfer cables and the specs doesn't include Win98 only the one's after. I couldn't find any ethernet crossover cables either and as far as a straight cable I don't know if my 10 year old computer is capable of that (must check). I could plug my old computer into the router but it would not become part of the network so I can't use that to transfer files to my new computer either.

    Mahalo,
    doogdoog
     
  5. Elvandil

    Elvandil

    Joined:
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    The "bulge" may just be a crossover. I made a USB crossover cable once but I have no idea now what I used it for.

    It's far easier just to network the computers, even as an ad hoc network, or use a USB stick, or any of many other methods. I got a cable like that with a Linksys program for transferring files and settings from an old computer to a new. I assumed it was just a crossover cable.

    In any case, to dispense with the speculation, here is a tutorial for one method.
     
  6. doogdoog

    doogdoog Thread Starter

    Joined:
    Apr 15, 2001
    Messages:
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    Aloha Elvandil,
    Thanks for the link and I was going to get one of those at Best Buy today but the specs didn't list Win98se which is my old computer (only the later os's) so it probably won't work because it doesn't have the drivers for Win98. I thought the simplest way was to use my network but I couldn't get it to connect so I bought a 16GB flash drive but I couldn't use that either because I couldn't get any driver for my 98. Did you have a daffy duck picture before? I think you helped me with some problems long ago and your name looked familiar. I am thinking about going peer-peer using a RJ45 plug so I am going to look for some rj45's and crimper since I have some spare cable.

    Mahalo,
    doogdoog
     
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