3.72 in.
(9.45 cm)
(1.86 cm)
t
in.
0.73 in.
A
(0.87 cm)
diameter
( 4 h o l e s )
diameter
(15.2
WINDOW END
OF HOUSING
7.44 in.
(18.9 cm)
Figure 2
Mounting Dimensions
Use the housing as a template or use the dimensional
drawing (Figure 2) as a guide. Carefully mark the
position of the mounting screws by pressing a sharp
instrument or pen or pencil point to leave marks on
the ceiling.
2 .
Draw circles on the ceiling where the cable access
holes are to be made. The cable access holes in the
ceiling may be slightly larger than the holes in the
housing, if desired.
WARNING:
Whatever means are used to attach the
A
housing to the ceiling, it must be done very se-
curely. The housing and camera assembly weigh
about 30 lb (14 kg). Failure to fasten the housing
to the ceiling properly could result in the housing
falling and causing severe injury to someone
beneath it.
Also,
inadequate
attachment
may
make the housing vulnerable to vandalism.
3 .
Attach the housing to the ceiling as follows:
a.
If the ceiling is concrete, drill appropriate-sized
holes in the ceiling with a masonry drill, and use
(min.) diameter lag bolts with concrete
anchors.
b .
If the ceiling is wood, use
(min.) bolts,
nuts, flat washers, and lock washers.
c. If the housing is to be attached to wooden
beams, use
(min.) lag bolts no shorter
than 2.5 inches (6.4 cm).
d .
If the housing is to be attached to steel beams
or steel plate, use
bolts, nuts, and lock
washers.
4 .
Align the large rectangular rubber gasket with the
holes in the top of the housing and fasten the hous-
ing to the ceiling with the connectors indicated in
Step 3. Tighten the fasteners securely enough to
assure that moisture cannot get into the housing
through the mounting screw holes or the cable ac-
cess holes.
4
x795-197
