Huawei FT2260 Owner's Manual page 10

Vertical Mounting
Fix two wall screws into the wall with the screw heads extending approximately 0.1
inches from the surface of the wall. The diameter of a screw head should be
between 0.22 inches and 0.28 inches. The distance between two screws should be 3
inches. Align the mounting brackets with the screws, push the device towards the
wall, and connect the brackets with the screws ensuring that the device is stable.
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