IBM 5155 Manual To Operations page 333

Specific Instructions
1
The Prototype Card can only be installed in
option expansion slot number 2.
Note: The
mM
Portable Personal Computer
has a built in support bracket on the front
panel. You can discard the support bracket
that came with this option.
2
Attach the retaining bracket to the pin side of
the Prototype Card. (The retaining bracket and
screws are in your option package.)
Retaining Bracket
Mounting Hole
Threaded
Screw Hole
Component
Side
Bracket
Mounting Screws
Threaded
Screw Hole
January 1984
Prototype Card 3