User's Manual

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 5of11 
19541P‐39(02‐11)
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Figure3:WearingtheHeadset
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VOX(VoiceActivation)
TheU9910‐BSWhasaninnovativevoiceactivation(VOX)system.VOXisintendedtoprevent
backgroundnoisefrombeingunintentionallypickedupbythemicrophonewhiledetectingand
allowingvoicecommunications.TheVOXknob(seeFigure1)controlsthethresholdat
whichthe
micbecomes“hot”.Whenthemicishotyouwillhearyourownvoiceandotherconnectedusers
willhearyouaswell.PressingthePTTbuttonwillautomaticallymakethemi crophone“hot”for
aslongasthePTTishelddown,regardlessofVOXsetting.
VOXBasics
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• VOXknobfullyclockwise(CW):  Micisoff
• VOXknobfullycounter‐clockwise(CCW): Micis“hot”
• VOXknobin‐betweenfullCWandfullCCW: VOXenabled
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VOXAdjustmentProcedure
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1. Ensurethatthebeltstationislinkedwithacontrollerorgateway(LEDflashing green).
2. Standinthenoisyenvironmentwher eyouwillbeusingthesystembutdonotspeak
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3. TurnVOXknobfullycounter‐clockwise.Youwillhearacontinuoustone.
4. Whilecontinuingnottospeak,slowlyturntheVOXknobclockwiseuntilthetonestops.
5. VOXisnowoptimallysetforyourenvironment.
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Thetonewillstopautomaticallyafter5secondsofnotchanging
theVOXknobposition.
Ifyoumovetoanotherlocation,youmaywishtorepeattheaboveprocedure.
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Tip
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• TurningtheVOXknobfullyclockwisewillturnoffthemicrophone.
• Conversely,turningtheVOXknobfullycounter‐clockwisewillcausethemicrophoneto
be“hot”allthetime.
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