i-PRO WV-U31401-F2L Guide D'installation page 11

Step 2
The front side of the template is where the "Hole for the mounting screw (spare)" is
located to the left of the "Cable access hole".
Hole for the
mounting screw
1 mm
{1/32 inches}
66°
37.5°
FRONT
11
Cable access hole
ø25.4 mm {1 inch}
39.5°
ø88.6 mm
{3-1/2 inches}
36 mm
{1-13/32 inches}