User's Manual

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Communication
AllconnectedbeltstationswillbeabletocommunicatewitheachotherthroughtheU9922‐G38
whileinrange(andpertheVOXsettingsoneachVOXbeltstation.)Additionally,allbeltstation
userswillhavecommunicationovertheintercom.Ifatwo‐wayradioisinstalledtothe
U9922‐
G38,pressingthePTTbuttononaVOXbeltstationwillallowtheusertotransmitoverthe
system’stwo‐wayradio.PressingthePTToverridestheVOXsettingonaVOXbeltstation.
MultiplebeltstationusersmayPTT andthusspeakoverthetwo‐wayradiosimultaneously.For

moreinformationconsulttheusermanualforthebeltstation.
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Tip:
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WirelessuserswhoarenotpressingPTTwhileanotherwirelessuserispressingPTTwill
notbeheardonthewiredinterco mwhilethePTTremainspressed.
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IntercomLevelAdjustment
Audiolevelscanvarybetweenintercoms,mainlyduetothesystemlevelsettingonthewired
intercom.Tocompensatefor
this,theU9922‐G38hastheabilitytoadjustitsreceivelevelfrom
theintercomusingtheVolumeknob(seeFigure1).Turningthisknobwillincreaseordecrease
theaudiolevelcomingfromthewiredintercomintothegateway.Performthisadjustmentto
obtainoptimumperformance.
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IntercomLevel
AdjustmentProcedure
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1. ConnectatleastonebeltstationtotheU9922‐G38gatewayandensuresidetoneis
present(seebeltstationUserManual).
2. BeginspeakingandslowlyturntheVolumeknobontheU9922‐G38clockwiseuntil
youhearanechoofyourownvoice.
3. Continuespeakingandturn
theVolumeknobcounter‐clockwiseuntiltheechostops.
4. Youmaywishtoverifycommunicationwithsomeonehard‐wiredtotheintercom.
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RadioLevelAdjustment
Audiolevelstoandfromatwo‐wayradiocanalsovarybetweenradiomodelsand
manufacturers.ToadjusttheU9922‐G38fora
particularradio,followtheproceduresbelow.