NCR RealPOS 70 - Motion Sensor; Power Indicator; Speakers

1-24 Chapter 1: Product Overview
Motion Sensor
The7402supportsamotionsensorforsystemwakeupbasedonnearby
activity.Thisisaphotodiodesensorwhichdetectschangesinambient
lightlevels.Thehardwaregeneratesaninputsignaltothe
motherboardwhichcanbepolledorusedtogenerateinterrupts
dependingonsoftwarearchitecture(NCR‐suppliedsoftwareand

operatingsystemsoftwarecanbothusethisinterfaceifconfigured
correctly).The7402doesnotsupportwakeupfromsoftoffviathe
motionsensor.However,wakefromstandbyorscreensaverare
possible,andNCRdriversoftwareallowscustomerapplicationsto
directlyusethemotionsensor.
Thephotodiodemountsbehind
aclearplasticlensbelowtheLCD
panel.Thecircuitryisoptimizedfornormalroomlightingconditions.
Excessivebrightlightordarknesscanreduceitseffectiverange.
Typicallymotionwithin2‐4feetofthesystemcausesawakeup.
Power Indicator
AgreenLEDpowerindicatorislocatedbelowtheLCDnearthe
motionsensor.TheLEDilluminateswheneverthesystempower
supplyisactive.ThusthepowerindicatorshowsthattheunitisOnor
inStandby.
Speakers
The7402hasstereospeakersintegratedintothetopofthedisplayhead
abovetheLCDpanel.Theseconnecttothemotherboardinternalaudio
header.Nominalaudiopoweris3Wperchannel,whichprovidesfull
PCaudiocapability.Forhigher‐fidelitysound,externalspeakerscanbe
connectedtotheexternalaudio
jackontheI/Obracket.Theintegrated
speakersaremutedinhardwarewheneveracableispluggedintothe
externalaudiojack.Thereisonlyenoughpoweravailabletodriveone
setofspeakers.