Quasimidi Rave-O-Lution 309 Owner's Manual page 38

4.) Remove the screws from the
outside of the body. These screws
fix the metal sheet where the I/O-
Expansion will be placed.
5.) Place the jacks of the I/O-Board through the 4 holes.
4 screws. To optimize the attaching don't forget to put the 4 washers under the screws.
The arrows show the position of
the screws and the washers.
Installationguide
6.) Fix the Board with the included
7