Federal Signal Corporation AR2000-M Installation And Maintenance Manual - page 8
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CAUTION
If too small a wire gauge is used, unacceptable
signal voltage drop in the signal line will cause
reduced sound output from the remote signal
device. Only use a cable having wire gauge
greater than 22AWG.
B. Federal does not recommend that new or
existingtelephonelinesbeusedassignallinesin
anAudioRoutersystemforthefollowingreasons:
1. Interference from other services or systems, or
interference from the system to other services.
2. Crosstalk,interferenceorhuminducedbyother
telephone lines.
3. Extended downtime because of the second party
involvement required to service the lines.
4. Theadditionalcostofinstallation,interfacingdevices
andmonthlychargesasopposedtoaone-timecost
of performing the installation.
3-5. MODEL AR2000-M SIGNAL CONNECTIONS.
CAUTION
Crosstalkcanoccurbetweensignallinesand
power lines, causing confusing messages, which
interfere with the capability of this equipment.
Donotinstallsignallinesinthesameconduitwith
power lines. Avoid routing signal lines on cable
trays with high voltage power lines.
Toconnectthesignallinesofthesystemtothe
AR2000-M,connectacolor-codedshieldedtwistedpair
ofaudiocableshavingconductorsnosmallerthan18
AWGto+and-ofeachzoneoutputbeingutilizedto
theappropriateremotedevice(s).(Seefigure3-1.)Every
remote signaling device in the system will be connected
in parallel to these lines. When connecting the remote
devices in parallel to the signal lines, observe the correct
polarity and install wire nuts over the connections.
NOTE:Ifusingthesuppliedamplifieroranexternal
amplifier,theoutputaudiomustbeconnectedusing
appropriatewirefromAUDIOOUTtoAUDIOINFROM
EXTERNALAMP.Ifusingtheon-boardamplifier,directly
connecttheAUDIOINFROMEXTERNALAMPtothe
AUDIOOUTterminalsonthebackoftheAR2000-M.See
section3-4forrecommendedwiresizes.
3-6. CONNECTION TO REMOTE DEVICES.
Physically install the remote device(s); follow the
installationinstructionspackedwiththedevice.
A. 300GC, 300GCX, 300X, 302GC, 302GCX,
302X, 50GC, and 50GCB.
Toconnectthesemodelstoa25Vrmsor70Vrms
signalline,aModelAM25CKorAM70CKconnectorcard
mustbeused.Seefigure3-1andinstructionsbelowfor
the appropriate signal line voltage.
B. 70VrmsSignalLineApplication.
TheAR2000-Mhasprovisionforconnecting70
Vrmslineoperatedspeakerstoitsoutput.Connect
the70VrmslineattheterminalsofZone1–Zone8
terminalblock(s).Connectthespeakersinparalleltothis
lineusing70Vrmslinetap.Thisoutputisselectedby
settingtheswitchonthebackoftheAR2000-Mtothe
70Vrmsposition.Theoutputaudiomustbeconnected
using16GAwirefromAUDIOOUTtoAUDIOINFROM
EXTERNALAMP.TheGainmaybeadjustedusingthe
AUDIOOUTVOLUMEcontrolknob.
C. 25VrmsSignalLineApplication.
TheAR2000-Mhasprovisionforconnecting
25Vrmslineoperatedspeakerstoitsoutput.Connect
the25VrmslineattheterminalsofZone1–Zone8
terminalblock(s).Connectthespeakersinparalleltothis
lineusing25Vrmslinetap.Thisoutputisselectedby
settingtheswitchonthebackoftheAR2000-Mtothe
25Vrmsposition.Theoutputaudiomustbeconnected
using16GAwirefromAUDIOOUTtoAUDIOINFROM
EXTERNALAMP.TheGainmaybeadjustedusingthe
AUDIOOUTVOLUMEcontrolknob.
D. Low Level Audio Output.
TheAR2000-Malsohasprovisionfor1voltaudio
output that can be switched to each zone for individual
externalamplification.Thislowleveloutputisavailable
atthesameterminalsasinBandCabove.Thisoutput
isselectedbysettingtheswitchonthebackofthe
AR2000-Mtothe1Vrmsposition.Theoutputaudiomust
alsobeconnectedusing18-20GAwirefromAUDIOOUT
toAUDIOINFROMEXTERNALAMP.TheGainmaybe
adjustedusingtheAUDIOOUTVOLUMEcontrolknob.It
canalsobeconnectedtoananalogfiberoptictransmitter
sothataudiocanbetransmittedoverafiberopticlinkin
an electrically noisy environment.
E. ExternalAmplifierConnectionforAlternate
Power Audio Output.
TheAR2000-Malsohasprovisiontoconnectan
externalamplifier,suchastheFederalSignalHP440,to
be switched to the corresponding zones. Set the Audio
RouterupaslistedinDabove.Connectthe1voltAUDIO
OUTtotheaudioinputofanotheramplifier.Theoutput
audio must be connected using appropriate wire gauge
fortheapplicationtotheAUDIOINFROMEXTERNAL
AMP(Seefigure3-2.)TheGainmaybeadjustedusing
theAUDIOOUTVOLUMEcontrolknob.
CAUTION
Carefulattentionshouldbepaidinordertomake
sure orientation of the signal is not reversed.