Help wire up an internal 6 in one card reader please?

Discussion in 'DIY Computers' started by Mike Barnard, Sep 1, 2004.

  1. Mike Barnard

    Mike Barnard Guest

    http://www.datafab.com/Product/Product.asp?ID=13

    Nice simple piece of kit, but the wiring with it is not explained.
    I've emailed the makers but no reply so far. Anyone here understand
    the following and proffer advice? Pretty please? :)

    The hardware has got two five pin male plugs on the back, labelled JP1
    and J3. They are bare wire pins, not made into a plug as such. They
    are marked [in TEENY WEENY letters] " B C D+ D- R " as best my old
    eyes can make out. It also has a firewire socket, but thats not a
    probem.

    It comes with a Y cable. One end has a ten pin female socket, with
    one socket filled in making a one way fit only for the mobo. This is
    easy too.

    The other end has the cable split into two five pin female sockets.
    Each of them only has four wires and one blank hole and they can fit
    on either way around. They both have differing wire colours though.
    The colours are... yellow-mauve-blue-green-nil and
    black-white-red-brown-nil.

    Therefore I could put (for example) the yellow wire against pin B or
    by turning it over against pin R. as they're both USB I assume it
    doesn't matter which of the two plugs they attach to but I could be
    wrong.

    So, how should I fit the wiring in? I won't try it out randomly in
    case it causes a chip to be damaged.

    YMBG to JP1 or J3? BWRB to JP1 or J3?
    Blank socket to pin R or pin B?

    Hope this is understandable. Thanks.
     
    Mike Barnard, Sep 1, 2004
    #1
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  2. Sorry, can't help. But I was wondering where you got it from and how much
    it cost you?

    ss.
     
    Synapse Syndrome, Sep 2, 2004
    #2
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  3. Mike Barnard

    Mike Barnard Guest

    Mike Barnard, Sep 2, 2004
    #3
  4. Mike Barnard

    Mike Barnard Guest

    Sorted. I found the wiring diagram. If you get one put the blank
    socket against the 'B' labelled pin. BUT. Check the mobo 9 pin
    connector is wired the same way. Mine are...

    1 & 2 Power
    3 & 4 D-
    5 & 6 D+
    7 & 8 Grnd
    9 Not connected
    10 No pin
     
    Mike Barnard, Sep 2, 2004
    #4
  5. Mike Barnard

    Mike Barnard Guest

    Thanks, but the view underneath isn't accessable without dismantling
    the whole thing! :)

    Sorted now anyway.
     
    Mike Barnard, Sep 2, 2004
    #5
  6. The message <>
    from Mike Barnard <> contains these words:

    --------snipped----------
    That, BTW, is to the iNTEL[1] standard. A lot of, but not all, MoBo
    makers use this standard (Jetway and FIC for two examples). It's also
    worth noting that pin 9, wrt the diagram pin numbering, can be a frame
    ground (stupid idea since this simply grounds an already grounded
    backplate).

    Trouble comes when an alternative standard derived to obviate the need
    for a key but permit the plug to be fitted either way round without
    error (it just simply swaps which jack on the backplate connects to
    which row of pins on the header - of no consequence in practical terms).

    Now we have two common standards and possibly a few spurious ones to
    boot as well! Provided you can identify the +5v and ground pins B4
    risking a connection, the worse consequence is that you might fail to
    establish communication due to reversed phasing of the data pair (D+ and
    D- pins). It's rather sad that the interface suffers from such phase
    sensitivity, but hey, it's only a "Toy Interface"(tm) after all! :)

    [1] I use the same 'typo' that occurred in the origional trade name
    application form (the caps shift lock was on and the mistake not
    noticed... sums up iNTEL at that time, I guess. :)
     
    Johnny B Good, Sep 2, 2004
    #6

  7. I saw one in Maplin today without the USB and Firewire extensions, but
    integrated with a 3.5 Floppy, and the same size as a regular floppy drive.
    I migh t get that instead, but it didn't have a price tag.

    ss.
     
    Synapse Syndrome, Sep 2, 2004
    #7
  8. Mike Barnard

    Alex Fraser Guest

    http://www.beyondlogic.org/usbnutshell/usb2.htm
    Scroll down to "Speed Identification"

    Off the top of my head, I can think of two other systems which utilise
    differential signaling; both would be equally non-functional with reversed
    polarity.

    Alex
     
    Alex Fraser, Sep 2, 2004
    #8
  9. Mike Barnard

    Alex Fraser Guest

    He did, see the other branch in the thread.

    Alex
     
    Alex Fraser, Sep 3, 2004
    #9
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