Allied Telesis XS900MX Series - Plywood Base for a Wall with Wooden Studs; Figure 40: Switch on the Wall with a Plywood Base

XS900MX Series Installation Guide for VCStack
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Plywood Base for a Wall with Wooden Studs
If you are installing the switch on a wall that has wooden studs, Allied
Telesis recommends using a plywood base for the device. (A plywood
base is not required for a concrete wall.) Refer to Figure 40.
Figure 40. Switch on the Wall with a Plywood Base
Wall Studs
Wall
Plywood Base