C08920SW@wuvmd.bitnet (Steve Westlund) (06/05/90)
Help! I would like to daisy chain an 8-inch floppy drive unit to the 8-inch rigid drive connected to my XEROX 820-2. I know where the floppy drive cable has to be plugged into the back of the rigid drive unit. However, my XEROX manuals indicate that both the floppy drive and rigid drive units must be internally modified in order for this to work. Can anyone out there please explain to me what I have to do internally to both disk drive units in order to daisy chain them? As long as I am at it, there is one more question. A XEROX 820-2 with two floppy drives comes with a baby board which serves as the floppy disk controller. An 820-2 with a rigid drive unit has a different baby board used to interface with the floppy and rigid disk controller located inside the rigid drive assembly. Can I modify a XEROX 820-2 to work with another type of drive by simply swapping the baby boards, or is there more to it? Thanks for any information you can provide, Steve Westlund Information Systems Washington University St. Louis, Missouri
Sprague.WBST311@XEROX.COM (06/09/90)
For some reason, I could not send directly to Steve Westlund, so I am sending this reply to the whole group. > I would like to daisy chain an 8-inch floppy drive unit to the > 8-inch rigid drive connected to my XEROX 820-2. I too have wondered how to do that, but do not know how to do it (yet). It is not addressed in the Xerox 820 Technical Reference manual at all. I will forward your message on to the 820 Users Group dl here at Xerox. There are some new members, and maybe one of them knows. Send me your Email address. > Can I modify a XEROX 820-2 to work with another type of drive by simply > swapping the baby boards, or is there more to it? As to the 820-II daughter boards, I am not sure what your getting at, but there is one daughter for the rigid drive, and one for 8"/5" floppy disk drives. Swapping back in forth is as simple as plugging them in and attaching the correct drive. Just *DON'T* get them mixed up (Drive and card). You *WILL* blow the hard drive controller board inside the drive cabenet if you attach it to the Floppy controller daughter board, and they are damn near impossible to replace. If you need a floppy controller daughter board, let me know. ~ Mike (Sprague.Wbst311@Xerox.Com)
mlewis@unocss.unomaha.edu (mlewis) (06/12/90)
From article <900608-100733-3304@Xerox>, by Sprague.WBST311@XEROX.COM: >> I would like to daisy chain an 8-inch floppy drive unit to the >> 8-inch rigid drive connected to my XEROX 820-2. > I too have wondered how to do that, but do not know how to do it (yet). It > is not addressed in the Xerox 820 Technical Reference manual at all. I > will forward your message on to the 820 Users Group dl here at Xerox. < Just *DON'T* get them mixed up (Drive and < card). You *WILL* blow the hard drive controller board inside the drive < cabenet if you attach it to the Floppy controller daughter board, and they < are damn near impossible to replace. > If you need a floppy controller daughter board, let me know. Where were you guys when I needed info on the Xerox rigid drive? And the controller? I have a BRAND NEW drive and SA1400 controller in my basement that I can't use, since I have no data on either, except for the Shugart glossy on the controller, and the Shugart foldout on their 8" products. The shipping blocks are still in place on the drive. I just removed the cables as the box was new. The box holds a pair of 8" drives now, although that took some surgery, and I'm willing to part with the SA1004, the SA1400 and the SA850 that came in the box for cheep. Any takers? My wife will love you for it! Marc -- --------------------------------------------------------------------------- Na khuya mne ehto gavno? | Internet: cs057@zeus.unomaha.edu preferred machine->| UUCP: uunet!mcmi!unocss!mlewis ---------------------------------------------------------------------------