Pelco Manual C325M-C (6/99) 5

CAUTION:
Pan/tilts in
the PT550P Series are
designed for upright or in-
verted operation and
should never be mounted
horizontally.
NOTE:
When mounting the pan/
tilt outdoors in the inverted position
(base up), RTV silicone sealant,
such as Dow Corning Type 732 or
equivalent, should be applied to the
areas indicated in Figure 1.
3.0 INSTALLATION
Pan/tilts in the PT550P Series are designed to mount onto a horizontal surface in
the upright or inverted position.
In order to ensure proper wiring and system operation of all components, it is rec-
ommended that you test the pan/tilt and the associated control equipment in your
facility before field installation. Refer to Sections 3.3 through 3.4.

3.1 MOUNTING

Attach the pan/tilt unit to a mount, following the instructions that accompany the
mount. To ensure maximum pan travel, mount the pan/tilt so that the fix ed limit stop
is directly opposite the center of the intended viewing area.
Make sure the mounting surface and the mounting method is strong enough to sup-
port four times the combined weight of the pan/tilt, enclosure, camera and lens.

3.2 CAMERA/ENCLOSURE MOUNTING

Attach the enclosure, camera and lens to the pan/tilt unit with 1/4-20 hardware (not
supplied). The enclosure, camera and lens must be correctly mounted and balanced
on the tilt table for proper operation.

3.3 WIRING

Cable distances for pan and tilt motors should not exceed the distances speci-
fied in Table A. Cable fabrication must be in accordance with Section 3.3.1, Mat-
ing Connector Assembly. The following are some recommended common instal-
lation practices.
1. Always use jacketed stranded multi-conductor interconnecting cable between
the control and the pan/tilt unit, with additional conductors than needed for
future servicing and or additions.
2. Always use color-coded conductors for ease of wiring and to identify functions
at a later date.
3. Keep a wiring diagram with the system for later use and reference.
Figure 1 . Sealant Locations
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