On 9/29/11 6:58 AM, Shoppa, Tim wrote: > Probably from an Ontel OP-1 system in the late 70's or very early 80's. > > The OP-1 was somewhere between a configurable terminal and a dedicated word > processor depending on firmware and peripherals installed. Peripherals did > include 8" floppies in the high end, I saw this being used in car dealerships > back in the early 80's as the front end to a central-office PDP-11 system. > > There are at least a few other manufacturers that used 8" floppies on a DB25 > cable. E.g. the RX01 cabinet kit for a WPS-8 system. I would not expect to > find any of them using compatible pinouts or even "interface concepts". E.g. > the RX01 is a dedicated serial bus with some smarts (or at least a state > machine) at the drives. The DSD-440 line used a different dedicated serial > bus (26 pin ribbon cable IDC's usually but I think I saw it routed over a > DB-25 at least once) and a microprocessor in the drive. I'm guessing your > board that sits between 50-pin Shugart and 25-pin connectors, doesn't have > much smarts, it probably just drops the many unused signal lines and > consolidates many of the grounds. > > >
thread from the dead.. was working on cleaning out a room full of boxes in storage, and found several dozen Ontel 8" floppy disks also forgot I bought the manuals for the system, which I will put up as soon as I can get some more disk space on bitsavers does anyone have a system? I see one person in the UK with the Telefunken version (Telecomp 5200) http://www.randomorbit.co.uk/?cat=35
