User's Manual

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19541P‐41(02‐11)
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Beforeabeltstationandagatewaycanbeconnected,theymustfirstbelinked.Asasecurity
measure,theclose‐linkfeaturerequiresdevicestobeinproximityofabout1to3ft(0.3to0.9m)
inordertosuccessfullylink.Thisensuresthattheunitsarenot
inadvertentlylinkedwithother
unitsonthepremises.
Linkingprocedure:
1. EnsurepowerisonforbothU9920‐GPBandbeltstation(seePower‐up/Power‐down)
2. Ensureunitsarewithin1to3ft(0.3to0.9m)ofeachother.
3. Simultaneously(within1‐2sec)pressandrelease
thePTTbuttonontheU9920‐GPBand
thebeltstationtolinkwith.
4. AmberLED’swillflashonbothdevices.AmomentaryredLEDindicatesasuccessful
close‐link.
5. UponsuccessfullinktheU9920‐GPBwillattempttoestablishaconnectionwiththebelt
station.
6. Uponsuccessfully
establishingconnectiontheLEDonthegatewaywillflashagreen
patterncorrespondingtothenumberofbeltstationsconnected.
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Tip:
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Oncelinked,thedeviceswillnot needtobelinkedagainunlesstheyarepurged(see
Purging).
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Eachbeltstationisabletobelinkedtoonlyonegatewayatatime.Agatewaycanhaveuptosix
beltstationslinkedandbeconnectedtofourofthose
sixatonetime.
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Thepowerbuttonhasamulti‐colorLEDinthecenterwhichservesasastatusindicationforthe
gateway.Table1belowliststhesestates.
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Table1:LEDStatusIndications
LEDColor BlinkRate Status
Red Solid Initializing/powerup
Red Once ConnectionDropped
Red Once ConnectionEstablished
Red Any Lowbattery(approx.1hrremaining)
Orange Slow Idle/Disconnected
Orange Fast Link/ConnectioninProgress
Orange Solid PTTasserted
Green Slow Connected(patternindi cates
numberofbeltstationsconnected)