8Pelco Manual C467M-D (5/95)
12. Attach the safety chain on the side of the back box
to the short 4-40 threaded screw in the 12.5" round
faceplate trim with the provided hardware.
13. Attach the faceplate trim to the back box by align-
ing the two serrated studs with two of the holes in
the edges of the back box and engaging the studs.
14. Operate the pan/tilt to verify that there are no ob-
structions or dragging cables within the back box
or dome.
4.3.2 Hard Ceiling Mounting
To mount the enclosure into a hard ceiling, perform the
following steps.
1. Determine the location and direction of the enclo-
sure. Ideally, the enclosure cutout should be paral-
lel and adjacent, or perpendicular, to any ceiling
structure. Cut an opening (refer to Figure 8 for di-
mensions).
2. Remove the factory assembled 12.5" round face-
plate from the back box by disengaging the ser-
rated studs.
3. Remove the factory assembled 14.5" square mount-
ing plate by removing the four (4) 1/4-20 bolts and
place it over the opening. Attach the back box
mount rails to the mounting plate with 1/4-20 nuts
(provided) to two opposite sides of the mounting
plate (see Figure 2). Use these mount rails to se-
cure the back box in place so that it can’t move
when inserting or removing the dome drive unit,
and so that all of the weight of the unit is not on
the ceiling tile, per local code.
4. Slide the back box through the mounting plate and
replace the four (4) 1/4-20 bolts and tighten to se-
cure the back box to the mounting plate.
5. Check the alignment of the back box to the ceiling
by attaching the 12.5" round faceplate trim to the
bottom of the back box, aligning the two studs with
two of the holes in the flanges of the back box and
engaging the studs. The studs should engage, while
leaving a very minimal gap between the ceiling
and faceplate trim. Loosen the 1/4-20 hardware in
the sides of the back box and make adjustments
are required. Insure that the face of the back box is
level with the ceiling.
6. Attach the lens and camera head to the tilt table
(hardware not supplied), if not factory pre-assembled,
using the camera/lens position template supplied
as a guide (see Figure 3). Locate the lens and cam-
era so that when the notched area in the template
is fitted under the tilt table, the lens and camera do
not project further out from the tilt table than al-
lowed by the template. Also, the lens must not
project higher than the long end of the template.
NOTE: If the camera and lens do not fit within
the boundaries of the template, they will not fit
inside the dome and need to be replaced with
smaller units.
7. Mount the camera power supply onto the bracket
provided, if not factory pre-assembled. (Screws to
mount the camera power supply and lens are not
provided with the pan/tilt.)
8. Hook up camera power, video, and lens with the
connectors supplied, if not factory pre-assembled.
Coil the excess camera cable and tie it down with
tie-wraps to the pan/tilt body.
NOTE: To insert or remove the drive unit from
the back box, the drive unit may need to be ro-
tated 90° so that the wiring cover and/or cam-
era power supply does not interfere with the
side of the back box. If difficulty inserting or
removing the drive unit is experienced, slowly
and gently rotate the drive unit 90°.
9. Engage the connector of the coil cord into the con-
nector of the pan/tilt and attach the safety clamp;
then insert the pan/tilt into the back box, feeding
the coil cord back through the opening in the top
of the back box. Position the pan/tilt in the back
box so that the horizontal studs in the pan/tilt mount
bracket align with slots in the back box mounting
bracket. Lift the pan/tilt until it reaches its stop,
then slide it to one side while letting it drop about
1/4 inch (see Figure 4).
10. Attach the dome to the pan/tilt by aligning the two
ball studs protruding through the flange of the dome
with the two holes in the dome attachment brack-
ets and engaging the studs.
11. Attach the safety chain on the side of the back box
to the short 4-40 threaded screw in the 12.5" round
faceplate trim with the provided hardware.