Allied Telesis IE340 Series - Figure 22: Switch on the Wall with a Plywood Base

IE340 Series Installation Guide
74
Figure 22. Switch on the Wall with a Plywood Base
The recommended minimum dimensions of the plywood base are listed
here:
 Width: 58.4 centimeters (23 inches)
 Height: 28.0 centimeters (11 inches)
 Thickness: 2.6 centimeters (1 inch)
The dimensions assume the wall studs are 41 centimeters (16 inches)
apart, the industry standard. You may need to adjust the width of the base
if the distance between the studs in your wall is different than the
standard.
You should install the plywood base to the wall first and then install the
switch on the base. Refer to Figure 23 on page -75.
Wall Studs
Wall
Plywood Base