User's Manual

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 4of8 
19541P‐42(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between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unitsarewithin1to3ft(0.3to0.9m)ofeachother.
2. Simultaneously(within1‐2sec)pressandreleasetheLINKbuttonontheU9921‐GUVand
thepowerbuttononthebeltstationtolink
with.
3. AmberLED’swillflashonbothdevices.AmomentaryredLEDindicatesasuccessful
close‐link.
4. UponsuccessfullinktheU9921‐GUVwillattempttoestablishacon nect ionwiththebelt
station.
5. UponsuccessfullyestablishingconnectiontheLEDonthecontroller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frontpanel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2: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)