Specifications

Section-2 Installation
October 17, 2013
2‐8
Copyright©2013,HarrisBroadcast
WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004
Caution
BE CERTAIN THAT THE INSULATION ON EACH AC SUPPLY CABLE HAS
BEEN SUFFICIENTLY CUT BACK TO ALLOW FULL CONTACT BETWEEN THE
CONNECTOR BLOCK AND THE COPPER CABLE. FAILURE TO REMOVE THE
INSULATION MAY RESULT IN HEATING AND FAILURE OF THE
CONNECTION.
STEP 5 Connecttheincomingsafetygroundwiretogreen/yellowPEconnectorin
TB1.
STEP 6 VerifythattheprimaryAClinevoltageiscorrectatthepanelboardormains
serviceentry.MeasuretheprimaryAClinevoltagefromphase‐to‐neutralor
phase‐to‐phaseandrecordforfuturereference.
STEP 7 Verifythatthemeasuredmainsvoltagesinthepreviousstepfallwithinthe
mainsvoltagerangesdiscussedin"2.6ACMainsR
equirements"onpage2‐2.
STEP 8 Replaceaccesspanelremovedinpreviousstep.
STEP 9 Procedurecomplete.
2.9.4 InterlockConnectionsProcedure
TheUAXtransmitterhasprovisionsforthefollowinginterlockloopconnections:
• RFMuteInterlock–inhibitsRFoutputwhenloopisopened,buttransmitterremains
switchedon.RFreturnsassoonasloopisclosedagain.
• SafetyInterlock–transmitterisswitchedoffwhenloopisopened.Onceloopisclosed
again,afreshtransmitter‘on’commandisrequiredtoresumetransmitting.
• EmergencyStop–anoptionallargeredbuttonthatmaybeconnectedtothetransmitter
saf etyinterlockand/oranexternalcustomer‐suppliedACmainscontactor.
TheRFMut
eandSafetyinterlockconnectionsareavailableontheInterlock/RS‐485busthatoriginatesattheLPU
andloopsthroughallexternalPABs.Whenrackintegrationisprovided,theRS‐485busterminatesataUAX/VAX
CUSTI/Opanelattherackroof,andcustomerinterlockconnectionsarema
deatthatpanel.
STEP 1
EstablishthesafetyinterlockandRFmuteconnectionsbyinstallingthe
dummyplugprovidedwiththetransmittercable/accessorykit.
Customer‐suppliedrack:installtheDB‐15jumperplugontheemptyControlBconnectorontheLPU,orifthe
systemcontainsPABs,onthelastPABintheRS‐485/Interlockdaisychain.Figure2‐3showsth
ejumperplugwiththe
safetyin
terlockjumperinstalledbetweenpins2&8.NewermodelUAXtransmittersalsohaveasoftwareenabled
RFmuteinterlockthatisconnectedbetweenpins8&14.
RSt
erminationresistorR22(121shouldbeconnectedbetweenpins8& 9ontheLPUControlBconnector
oronthelastPABControlBconnectorinthesystem .
Harris‐supplie
drack:installthe8‐pinWAGOconnectorwithpins2‐3(SafetyInterlock)and5‐6(RFMute)jumpered
atterminalboardpositionJ2ofthecustomerI/Oboardatthetopofthetransmitterrack.