[Designing AV Systems]In order to mount a projector so that it is horizontally centered with the suspended screen, the technician should look at…

A Reflected Ceiling Plan (RCP) is a technical drawing that shows a view of the ceiling as if reflected onto the floor. Its primary purpose is to show the precise locations of all objects on the ceiling plane, including light fixtures, HVAC diffusers, and AV equipment like projectors and the mounting points for a suspended screen. To ensure the projector is horizontally centered with the screen, the technician must consult the RCP, which provides the necessary top-down plan view with dimensions for accurate horizontal (x-y) placement. CertEmpire.com

1. AVIXA. (2020). CTS Certified Technology Specialist Exam Guide, Third Edition. McGraw-Hill.

Chapter 4, "Creating AV Solutions," p. 138. "A reflected ceiling plan (RCP) is a drawing of a room

or space that looks down at the ceiling... The RCP shows the location of ceiling-mounted items,

such as light fixtures, speakers, projectors, projection screens, and cameras."

2. ANSI/INFOCOMM. (2010). 2M-2010, Standard Guide for Audiovisual Systems Design and

Coordination Processes. Section 3.4. "Architectural Drawings... Reflected Ceiling Plan: A plan

view of the ceiling showing the location of ceiling-mounted devices."

3. Ching, F. D. K. (2015). Architectural Graphics. John Wiley & Sons. Chapter 3, "Architectural

Drawing Systems," pp. 98-99. The text explains that RCPs are used to "dimension the locations

of ceiling elements."