Cumana CA400S 5.25" floppy disc interface

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Cumana CA400S 5.25

 Cumana CA400S 5.25" floppy disc interface (front)

Cumana CA400S 5.25

  Cumana CA400S 5.25" floppy disc interface (back)

When the Archimedes was launched most users also had BBC Micros or masters with 5.25" floppy discs and wanted to be able to transfer data and programs from their BBC Micro/Master to their Archimedes and back. The office PCs of the time (1988) also used 5.25" floppies. The 5.25" floppy drive interface enabled users to connect a BBC disc drive to the Archimedes floppy disc interface. The card plugs into the floppy interface on the motherboard, the existing 3.5" floppy disc is plugged into the pins at the bottom of the interface and the cable is connected to a socket on the podule blanking plate at the back of the computer. The 5.25" floppy drive plugs into the socket on the back of the Archimedes (NB the 5.25" floppy disc drive will need its own power supply).

Here are the Cumana CA400S Installation Instructions.