22 Extron K-12 Classroom Design Guide
Ceiling Mount Projector Classroom
Room Needs Assessment
Purpose CompleteAVswitching,control,andamplication
system for classroom with a ceiling mount
projector
Viewing Distance
Range
From 8 feet to 40 feet
Display
Requirements
Ceilingmountprojectorwithscreenlocatedon
front wall
Sources Teacher laptop, Blu-ray player, and document
camera
Audio Requirements Programaudioforsourcesaswellasthe
teacher’s microphone
Control Interface Easy-to-use control interface on the wall for
projectorpower,sourceinputselection,volume
control, and other system functions
System Design Solution
FourInputExtronPoleVault
®
DigitalClassromAVSystem
Display Components
Oneceiling-mountedprojectorwith2,700ANSIlumenbrightness
andaHDMIinput.Theprojectorhasanativeresolutionof1280x800
projectedona109inchdiagonal,16:10aspectratiopulldown
screen.
Sources and Connectivity
Thefollowingsourcesareavailable:Blu-rayDiscplayerwithHDMI
output,teacherlaptopwithHDMIoutput,anddocumentcamera
withVGAoutput.AllsourcesareconnectedtothesystembyExtron
PVTSWswitchingwallplatesmountedincloseproximitytothe
source.
Control Interface
TheExtronMLC104IPPluswillprovideusercontrolofthissystem,
including display power, volume control, and source selection. The
remaining button will be configured with display’s Freeze function.
This allows the teacher to display the lesson on the screen while
using the computer for other functions such as attendance, grading,
or preparation.
Switching System
TheExtronPVS405DistheheartofthisPoleVaultDigitalsystem.
ThePVS405Dprovidestwoinputsfordualinputswitchingwallplates
whichtransmithighresolutionAVsignalstotheswitcherovera
single,economicalCATxcable.Eachinputwallplatesupportstwo
AVsourcesallowingacompletesystemtoaccommodateupto
four inputs.
Audio System
ThePVS405Dalsooffersanintegrated50wattamplierthatdrivesa
pair of Extron FF 120 speakers. The FF 120 speakers feature Extron
patented Flat Field technology for consistent sound levels across
the listening area, and reduce the number of speakers required
intheroom.ThissystemalsoincludestheVoiceLiftMicrophone
which allows the teacher’s voice to be evenly distributed throughout
the room and offers students a handheld microphone for class
participation.
Mounting
AllcomponentsformountingtheprojectorandcriticalAV
componentstotheceilingareincludedinthePoleVaultSystem.In
fact,thesystemtakesitsnamefromtheuniqueExtronPMK560Pole
Mount Kit that securely mounts and conceals system components
abovetheprojector.Thisprotectsthemfromtamperingandtheft,and
frees up space in the classroom.
Overview
The classroom will be used in a K-12 education environment with the need to
display multiple types of electronic media to the students while maintaining a
cost-effective solution. Typically, a single instructor will be using the classroom.
However,thesystemshouldbesimpletooperateandintuitive,allowing
users to concentrate on instruction. Since the system will be used extensively
on a day-to-day basis, reliability will be essential. The security of system
components and their settings is also important.
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