Forum Rules and Etiquette

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Qantel System 88 w/ 45XP

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    Here's the last few.

    IOU-39S - Now that I look at them, this one has the same part # as the one in the last post.

    DIAG Panel Q264 - Figured I'd put this in too

    IOU-56S - Again, there are two of these, but I only took pictures of one.

    I can take more if anyone needs em, just let me know!


      I'm getting slightly closer to getting this thing set up in the house to test.

      Will do my best to keep everyone posted.


        Sorry to resurrect an old thread, but I just bought some boards off eBay and information on these things is hard to find.
        I got these: IOU-53, IOU-54, IOU-48-2, IOU-56S, IOU-56R, BP10/RTC.
        Pointers to documentation or other information would be appreciated.


          Originally posted by wormey View Post
          Sorry to resurrect an old thread, but I just bought some boards off eBay and information on these things is hard to find.
          I got these: IOU-53, IOU-54, IOU-48-2, IOU-56S, IOU-56R, BP10/RTC.
          Pointers to documentation or other information would be appreciated.
          hopefully they still have their socketed parts on them, not that they are very useful as-is since they
          are all peripheral controller boards

          there is some info on bitsavers under qantel

          seller has a bunch of mid-80's boards, every one has had its firmware pulled


            Actually, that's the seller from whom I got my boards -- I took all the ones that still had firmware on them. Boards without firmware are kind of useless.

            I did get the Qantel Pocket Reference from bitsavers, but it only goes to IOU-40. Most all the other files look like they're from 1983 or 1984, all my boards are dated 1986.
            I'll take a closer look at the bitsavers files. I see they have one for IOU-49 and one for IOU-52. I don't have those but the ones I have may be lurking in other files.

            edit: So, I looked at all the files on bitsavers, did find a field maintenance manual for IOU-54 (more pages devoted to disk drives than the board). Nothing else pertinent though.
            So maybe I'll just strip these things for parts...
            Last edited by wormey; October 19, 2021, 01:51 PM.


              Didn't see this until now, sorry! I never did much with this beyond what was mentioned here. I moved the frame and cards inside but that's where it sits. I've just been hoping that someone might come along with some info, at least until I get a chance to dig into it a little myself.