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• Ceiling and wall type (important in assessing the hardware needed)
• Ceiling type: dropped, spline, hard lid and similar. Structural type (wood, concrete,
trusses), plenum or non-plenum
• Wall type: drywall, cement, brick.
WARNING: Structural ceiling failure could cause death serious injury or
death. Check the structural ceiling to ensure that it can handle a load four
times the weight of the final setup.
• Lighting
• Type and control (important for projector image viewing)
• Ambient light from windows
Student Desks
Teacher’s Desk
TV / VCR / DVD
Inputs
Screen/White Board
Location
Windows
MLC controller
Location
PVT A/V Wallplate Location
Projector/Switcher
Location
Speaker
Location
Figure 3. Example Classroom Installation
b. Location of the Screen and Projector
• Proposed screen location (normally located at the front center of the room)
• The lowered screen does not cover safety devices, such as fire alarm strobes.
• Dimensions and type of screen (maximum image size, motorized or hanging screen)
• Proposed projector location
• Projector aligned with center of the screen and not an obstruction to viewing
• Projector throw distance (maximum and minimum limits to the screen) of the image
• Horizontal offset (horizontal distance from the center of the lens to the center of the
projector)
• Vertical offset of the projected image (height relationship between the projector and
the screen)
• Projector angle (image projected up, down, or horizontal to screen)
• Power source for the projector: existing and accessible or needing installation
• Projector weight: the Universal Projector Bracket (UPB 25) supports a maximum
weight of 25 lbs.
• Viewing obstructions: Pillars, furniture and so forth, window locations for glare
reduction, obstructions between projector and screen.
• Overhead clearances (refer to a copy of ADA Standards for Accessible Design,
Sections 307 and 308, for ADA requirements)
PoleVault IP Systems • Introduction
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