JBL CSPM-1 Quick Start Manual - Setting Up
TheJBLCommercial
®
CSPMseriesmicrophones
(CSPM-1,CSPM-2,andCSPM-4)aredynamic
close-talkingmicrophonesforpagingsystemsand
loudspeakersystemsinairports,undergroundstations,
departmentstores,etc..
CSPM-1 Schematic
CSPM-2 Schematic
CSPM-4 Schematic
G
G
Setting Up
Button Functions
1
2
PUSH TO TALK (PTT) Button
CSPM-1:ThemicrophoneisonwhenthePTTbuttonis
pressed.ThemicrophoneisswitchedoffwhenthePTT
buttonisreleased.
CSPM-2,CSPM-4:WhenthePTTbuttonison(pressed),
zonebuttonsareconnectedtothe“G”pinandsound
willberoutedaccordingtothestateofthezonebuttons.
WhenthePTTbuttonisoff,thezonebuttonsareopened
andnosoundwillbesenttoanyzones.
ZONE Button
Pressthezonebuttonstoselectwhichzoneswillreceive
thepagingannouncementoncethePTTbuttonis
pressed.
Anexampleofusingthebuttonsinapublicaddress
applicationis:
1. PresstheZone 1button.
2. PressthePUSH TO TALKbuttonandspeak.Your
pagewillbedeliveredtoZone1.
Operation and Application
Maintainagapbetweenthespeaker’smouthandthe
microphone,anddonotexceedthemaximumbend
angle.Onlybendtheflexiblepartofthemicrophone.
Inthecaseofmicrophoneswithcardioidpolar
pattern,mostsoundattenuationoccursat180°.These
microphonesshouldpreferablybeusedwherethereis
aninterferencenoisesourceoraloudspeakerdirectly
oppositethespeaker.
1