Motorola GTR 8000 - Page 109

3.4.5Connections–Rear(IntegratedV oiceandData)
Table3-5BaseRadio/ReceiverBackplaneConnectionsforIntegratedVoice&Data(cont'd.)
Port/Type
Deviceitconnectsto:
Port/
Type
Description
Batt/DCDCpowersupplyorbatteryBatt/DCInputfromandoutputtoa48VDCpower
supplyorbackupbattery.WhenACpoweris
notavailable,thedeviceswitchestooperate
fromaDCsourceiftheoptionalDCpower
(8AWG;length9ft),CA01400AAisordered
andinstalled.Oneendconnectsintothe
Batt/DCportandtheotherendconnectsinto
theDCsource.Thecontactsare39-83503N02
(AMP#53880-2),thereceptaclehousings
are15-83502N01(AMP#53884-1)and
themountingearsare07-83504N01(AMP
#53887-1).
3084869Y06cableisusedforapositive
groundsystem.3084869Y02cableisusedfor
anegativegroundsystem.
AC
120/240V ACpower
source.
Inputfrom120/240VACnominalpower
source.
EXTFREQ
REF*
TRAK9100BNC
1.InanAnalogorASTRO
®
25
simulcastconguration,thisinputis
connectedtoanexternalreference
signalsourcetodriveaninternal
oscillatorforprecisefrequency
stability.Thesourcecanbe5MHz
or10MHz.
2.InanASTRO
®
25simulcast
conguration,itisusedasaninput
connectedtoanexternalreference,
whichprovidesacomposite5MHz
+1PPSsignalsourcetodrive
aninternaloscillatorforprecise
frequencystabilityandprovidesa
timereferenceforpreciselylaunching
ASTRO
®
25simulcastovertheair.
1PPS*
TRAK9100BNC
Thisinputisusedwhenacomposite5MHz+
1PPSsignalsourceisnotused.Itisconnected
toanexternal1PPStimereferencesource
toprovideanaccuratetimesourceusedfor
preciselylaunchingASTRO
®
25simulcast
overtheair.Thisinputisusedinconjunction
withEXTFREQREFoption1.
*See5.1.1GTR8000BaseRadioTimeandFrequencyInputs,page5-2.
6871022P86-A-November20123-25