Component Identification; Chassis Housing; Chassis Assembly - American Dynamics AD1273 CobraDome Installation And Operation Instructions Manual

COMPONENT IDENTIFICATION

COMPONENT IDENTIFICATION

CHASSIS HOUSING

The CHASSIS HOUSING contains the major components
of the AD1273 CobraDome. Also, all mounting hardware is
attached to the CHASSIS HOUSING.
Aluminum Tile The Aluminum Tile is used in drop ceiling
installations. In a 2' x 2' grid, it replaces the
ceiling tile entirely. In a 2' x 4' grid, it
replaces half of the standard tile and comes
with a length of T-rail to support the seam
between the two half tiles (see Figure 2).
Fascia Plate The Fascia Plate provides a neat appearance
to the bottom of the CobraDome in drop
ceiling or pendant mount installations. The
Fascia Plate attaches to the CHASSIS
HOUSING via four ball-and-socket snap
connectors.
Trim Ring The Trim Ring provides a neat appearance
to the bottom of the CobraDome in drop
ceiling or hard-mount installations where a
hole was cut in the existing ceiling.
Corner Brackets Four Corner Brackets bolt to the
CHASSIS HOUSING and provide
additional support when mounted in a
dropped ceiling grid.
Safety Hook A Safety Hook bolts to the top of the
CHASSIS HOUSING to provide primary
safety against the CHASSIS HOUSING
falling during normal service or unrelated
building conditions. A suitable chain or
cable must be strung between the Safety
Hook and a solid location on the upper
building structure.
NOTE: The Safety Hook is not to be confused with
the Safety Cable described in the CHASSIS
ASSEMBLY section.

CHASSIS ASSEMBLY

The CHASSIS ASSEMBLY contains all the camera/lens
hardware, the pan/tilt motors and gears, the on-board
electronics, and the power supply.
PCB Cover The PCB Cover is bolted to the top of the
CHASSIS ASSEMBLY and serves as a
protective cover for the AD1273 printed
circuit board and power supply. The PCB
Cover also serves as a connection point for a
safety cable between the CHASSIS
ASSEMBLY and the CHASSIS HOUSING
(see Figure 2).
Wheel Switches Two Wheel Switches mounted on the
printed circuit board permit setting the
individual CobraDome identification
numbers.
DIP Switch One eight position DIP Switch mounted on
the Printed Circuit Board configures the
CobraDome for Black/White or color
operation, NTSC or PAL operation,
motorized lens operation, and Auto-Line
Control operation.
Lower Dome The Lower Dome mounts to the CHASSIS
ASSEMBLY and provides cover to the
camera lens.
Safety Cable The Safety Cable connects between the
PCB Cover and the CHASSIS HOUSING
as a backup safety to prevent the chassis
falling during normal service operations or
unrelated building conditions.
7-Pin Connector The 7-Pin Connector routes the incoming
Data and 24VAC Power wiring harness to
the CobraDome printed circuit board.
BNC Connector The BNC Connector routes the outgoing
video signal.
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AD1273