User's Manual

RLX2 Industrial Hotspot Series
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Page98of208 ProSoftTechnology,Inc.
 February5,2015
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Field
Description
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currentoperatingconditions.Thesystemattemptstousea400microsecond
GuardInterval,butwillfallbacktoan800microsecondGuardIntervalif
excessivedatacorruptionisdetected.Theradiowillperiodicallyattemptto
resumeusinga400microsecondGuardIntervalasconditionsimprove.A400
microsecondGuardIntervalresultsinabout11%morethroughpu
tthan
usinga800microsecondguardinterval.TheuserhasnocontroloftheGuard
Interval.
Asseeninthetableabove,absolutelybestthroughputrequires802.11n
widemode,morethanoneantenna,andaRFenvironmentcapableof
supportinga400microsecondGuardInterval.
MaxBasicRate
InadditiontotheDataRatesettingwhichcontrolsgenericdatatraffic,the
BasicRatesettingadjuststherateatwhichcontrolpacketssuchasBeacons
andACKsaresentataswellaspacketsthatneedtogotothewholenetwork
suchasBroadcasts.Becausethesepacketsarein
tendedforthewhole
network,theMaxBasicRatesettingoftheMasterisadvertisedtoeachof
theradiosinthenetworkthroughBeacons.Eachradio,otherthanthe
Master,theninheritstheMaxBasicRatesettingoftheMaster.Therefore
thesettingonlyneedstobemadeintheMasterra
dio.Thesettingineachof
theotherradiosisdisregarded.
InteropOptimization
Thiscontrolallowsforeaseofconfigurationforthefollowingcontrols,for
twospecificinteroperabilityscenarios.
RLX2BridgingoptimizesImmediateBroadcasts,BlockGeneralProbesand
RangeforoperationwhenpeerdevicesareprimarilyotherRLX2s.3
rd
‐Party
Clientsoptimizesthesecontrolsforpeerdevicessuchaslaptops,tablets,
phonesoranyotherWiFidevicesthatperformregularpowersavingare
expectingtoconnecttothisRLX2.Ifthissettingisnotused,theseclient
devicesmayhavedifficultyinfindingthenetworkSSID,andtheir
communicationmaybeerraticdu
etobroadcastsnotbeingtransmitted
whenexpected.RLX2Bridgingwillstillfunction,althoughtheRLX2willbe
respondingtoallscanningclientdeviceswhichmayintroducesomejitterto
databeingtransferred.
ImmediateBroadcasting
Forwardmulticasttrafficimmediately,ratherthanwaitingforspecifictime
intervals.
BlockGeneralProbe
Requests
Donotrespondtogeneralproberequeststhatarenotspecifictotheradio's
SSID.
Range
Allowstheradiostoaccountforroundtripdelays. The Rangesettingsshould
bethesameinallradiosinthenetworkandshouldbe atleastlargeenough
toaccountforthelengthofanylinks.However,increasingtheRangebeyond
whatisnecessarycancauseaslightdecreaseinthroughput.Thedefault
Longrangeis25
km,whichisvalidforalloperatingmodesofallradios.
Reducingtherangesettingforsystemsatcloserrangemayimprove
throughput.
TXPowerAttenuation
Setstheoutputpoweroftheradio.