4. Use a drill to make the mounting holes for the backplate. Make the hole diameter applicable to
the fasteners used.
a. Ceiling mount: Make a two-hole pattern 72.4 mm (2.85 in.) wide with the cable opening in
the middle. Put the holes at least 37.4 mm (1.47 in.) in front of the cable opening.
b. Wall mount: Make a two-hole pattern 133.4 mm (5.25 in.) long that is 50.8 mm (2 in.) below
the cable opening. Align the holes vertically.
English 29