User's Manual

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 5of8 
19541P‐42(02‐11)
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Communication
AllconnectedbeltstationswillbeabletocommunicatewitheachotherthroughtheU9921‐GUV
whileinrange(andpertheVOXsettingsonaVOXbeltstation.)Additionally,allbeltstation
userswillhavecommunicationovertheintercom.Iftheintercomissoequipped,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VOX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intercom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U9921‐GUVhastheabilitytoadjustitsreceivelevelfrom
theintercomusingtheVolkeys(seeFigure1).Pressingthesekeys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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ReceiveLevelAdjustment
Procedure
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1. ConnectatleastonebeltstationtotheU9921‐GUVgatewayandensuresidetoneis
present(seebeltstationUserManual).
2. BeginspeakingandslowlyandrepeatedlypresstheVolumeUpkeyontheU9921‐
GUVgatewayuntilyouhearanechoofyourownvoice.
3. Continue
speakingandpresstheVolumeDownkeyuntiltheechostops.
4. Youmaywishtoverifycommunicationwithsomeonehard‐wiredtotheintercom.
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Range
Therangeofabeltstationandagatewaycanbeupto300ft(100m).Ifyouareinan
environmentwithmetal
orconcretewalls,thisrangecouldbereduced.Whenthebeltstation
travelsoutofrangeofthegateway,avoicealertwill indicatethattheconnectionhasbeenlost.
Toreconnect,simplymovebackintorangeandconnectionwiththegatewaywillautomatically
bereestablished,alsonotedbyavoice
alert.
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