User's Manual

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19541P‐41(02‐11)
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Power‐Up/Power‐Down
TopoweruptheU9920‐GPBPushBackGateway,pressandholdthePOWERbuttonfor
approximatelytwoseconds.TheLEDwillturnredandthenbeginflashingorange.Ifthereare
linkedbeltstationswithinrange,theywillautomaticallyconnecttothegatewayinafew
seconds
afterpowerup.
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TopowerdowntheU9920‐GPB,pressandholdthePOWERbuttonforapproximatelytwo
seconds.TheLEDwillturnredandthenturnoff.Thegatewayisnowpowereddown.
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AircraftInterface
TheU9920‐GPBisdesignedforairportpushbackoperationsandcanbe
connectedtoanaircraft
intercomsystem.Onceconnected,uptofourbeltstation(U9910‐BSW)userscancommunicate
tothepilotoftheaircraftbypressingthePTTbuttononthebeltstation.APushBackCableis
requiredbetweentheU9920 ‐GPBandtheaircraft(cableP/N:41035G‐02included
withgateway,
standard1/4"interphoneconnection).SeeFigure2below.
Line up
Orange Dots and Twist
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Figure2:PushBackCableConnection
[additionalfigureshowingaircraftinterface]
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AircraftLevelAdjustment
Audiolevelscanvarybetweenaircraft.Tocompensateforthis,theU9920‐GPBhasareceive
leveladjustknob(seeFigure1).Turningthisknobwillincreaseordecreasetheaudiolevel
comingfromtheaircraft
andintothewirelessintercom.Byadjustingthisknob,optimum
performancecanbeachieved.