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Thread: Xerox 820-II floppy cable wanted

  1. #1

    Default Xerox 820-II floppy cable wanted

    Hi all,
    I have a Xerox 820-II, but just the main part, no drives.
    I need to have a look inside to check if the disk controller's actually there, (at least there's a connector at the rear of the monitor), but in the meantime I'd like to research what it takes to connect drives to the Xerox.

    I haven't got 8" drives, but the 820-II seems to have the option to connect 5.25" ones as well.

    What 5.25" drives would I need to connect? QD(80 tracks DD) or HD (80 tracks HD)? What's the pinout of the floppy connector?

    Thanks
    Robert

  2. #2
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    PDF page 48 should do it for you.

  3. #3

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    Quote Originally Posted by Chuck(G) View Post
    PDF page 48 should do it for you.
    Thanks Chuck, that has the connections I'm looking for ... if I could read them ... I'm not familiar with signals getting Latin characters as names ... are these top/bottom rows in an edge connector or something like odd/even pins?

    Robert

  4. #4
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    Top row is usually numbered, bottom row lettered. Some letters may be left out. Looking at two from my hellbox, an 18/36 connector has the top row as 1-18 and the bottom row A-V. A 22/44 connector has the top row as 1-22, the bottom row as A-Z. The convention is to omit G,I,O and Q.

  5. #5

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    Thanks again - that'll help me get going.

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