AASTRA 4223 Professional for MD Evolution User Guide - Manual (Page 150)

151 MD Evolution – Dialog 4223 Professional
Installing Your Extension
Using a screwdriver, remove the plastic covers from the two holes
located on the underside of your extension. These holes are pre-
cut, and indicate where the screw heads will be inserted to mount
the extension on the wall.
Next, drill two holes that will hold your extension’s wall mounting
screws. These screws should be in compliance with the diagrams
below, with a vertical distance of 100 mm between them.
Now, simply insert the two wall mount screws into the holes on the
underside of your extension.
10
0
m
m
10
0
m
m
9,5 mm
9—10 mm
max 5,5 mm
9,5 mm
max 5,5 mm