As far as I know, there is no locking mechanism to
prevent the opening
of the drive slots to access to floppy. I guess you know how that works.
The upper "door" flaps open in the upward direction, the lower
"door"
flaps open in the downward direction.
I remember the drive ribbon cable to be nothing special. Plus you need
the standard 4-pin power supply cable to power the RX50.
I don't know the behavior of the RX50 if powered without ribbon cable.
I normally connect everything before powering up :-)
I also seem to remember the disks are 400K single sided and go in the
drive in opposite direction so you need to remember the orientation of
the floppies.
I believe there are markings on DEC floppies and the drive to indicate
the correct way to insert them.
Just pull on the upper or bottom door from the center. It should pull open.
pax
--
Paxton Hoag
Astoria, OR
USA