Federal Signal Corporation AR2000-M Installation And Maintenance Manual - page 5
-4-
1-3. CONTROL CIRCUITRY.
A. Control Circuitry.
ThecontrolcircuitryintheAR2000-Mhasabuilt-
inprioritylevelfeature.Thelocalmicrophonehasthe
highest priority level when activated. If a preset is initiated
bycontactclosure,theAR2000-Mwillgrantthatpreset
priority.TheAudioRouterwillstorethecurrentselection
first,thenactivatethepreset.Oncethecontactclosure
isremoved,theAR2000-Mwillreturnthesystemtothe
previous condition. Pressing cancel will deactivate any
currently active selections.
B. All CALL Pushbutton.
TheALLCALLpushbuttonswitchselectsand
connects all zones to the currently selected input source.
Pressing the ALL CALL again returns the system to the
previous condition.
C. CANCEL Pushbutton.
TheCANCELpushbuttonwhenpressedwillreset
all the manually activated signaling functions of the
AR2000-M.
D. MONITOR SPKR.
Amonitorspeakermaybeconnectedtotheunit
at this output. Audio to this output will exist during all
conditionsexceptwhenthemicrophoneisinuse.This
preventsanyfeedbackfromthemicrophone.
E. ADDITIONAL ZONES.
AnAR2000-Zmaybeconnectedtoaddon
additional8zonesofcontrol.Ifdesired,uptoseven(7)
totalAR2000-Zunitsmaybeaddedtoprovideatotalof
64 zones.
F. ADDITIONAL PRESETS.
AnAR2000-Pmaybeconnectedtoaddon
additional8presetsofcontrol.Ifdesired,uptoseven(7)
totalAR2000-Punitsmaybeaddedtoprovideatotalof
64 presets.
1-4. POWER.
WARNING
InordertopreventpowertotheAR2000-Mfrom
being accidentally turned off, the unit has a power
switchlocatedonthebackoftheunit.Before
performing any installation or maintenance,
ensure that power is disconnected.
ThefrontpanelhasagreenLEDtoindicatethe
presenceofprimarypower.ItalsohasaredLEDto
indicatethepresenceofsecondarypowerinuse.The
AR2000-Mcanbeoperatedfromeithera120VAC,
240VACora24VDCpowersource.TheACpoweris
connected via the power cord, which requires manual
switchinginordertooperate.24VDCBackupconnects
viatherearterminalsdirectlyunderneaththe4-Amp,
Bussman-typeGMTindicatingfuse.
WARNING
Ifthisunitistobeconnectedtoanon-power
limited 24 volt dc supply, the National Electrical
Code (NFPA 70) requires that those leads be
separated from other classes of wiring connected
to this unit.
TheAR2000-PandtheAR2000-Zobtainpower
directlyfromtheAR2000-M.
1-5. AUDIO INPUTS.
ChannelAandChannelBinputsareprovidedin
thebackoftheunittocouplestandard1voltaudio
signalfromabackgroundmusicsourcesuchasaradio
receiver,CDplayeroratapeplayer.Theinputscanalso
be selected to accept a 25Vrms or 70Vrms input source.
TheChannelAinputisselectablefromthefrontpanelby
depressingtheChannelAselectionbutton.Toselectthe
ChannelBinput,depresstheChannelBselectionbutton
onthefrontpanel.OnlyChannelAorChannelBmaybe
activated at one time. It is not possible to activate both
ChannelAandChannelBaudiosourcessimultaneously.
1-6. MICROPHONE INPUT OPTION.
AFederalSignalModelMSB-1microphonecanbe
connecteddirectlytotheAR2000-Mviathemodularjack
provided on the front of the unit (highest priority).
1-7. TELEPHONE INPUT OPTION.
A standard telephone line can be connected directly
totheAR2000-Mviathemodularphonejackprovidedat
thebackoftheunit.Thisallowstheusertocontactthe
AR2000-Mviaphone,recordamessageanddeliveritto
zones selected by the phone line user.