Simrad PI GEOMETRY - QUICK REFERENCE GUIDE REV B Installationshandbuch Seite 17

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SimradSH90
Thecomputerisbasedonacommercialdesign,butthesoftware
andhardwarehasbeenspeciedandassembledbySimradtosuit
theSH90requirements.
ThecomputerholdsaDVDplayerforusewithfuturesoftware
upgrades.
Figure2ProcessorUnit
Thepurposeofthiscomputeristoallowyoutocontrolthesonar.
Thecomputerservesseveralfunctions.
Itcontrolstheoveralloperationofthesonarfunctions.
Itprovidesthegraphicpresentationofthesonarmodesand
echoes.
Itholdsthemenusystem.
ItcommunicateswiththeOperatingPaneltoreadthebuttons
andtrackballmovements.
Itperformstheadvancedsignalprocessingandbeamforming
requiredtopresenttheinformationonthedisplay.
Itcommunicateswithperipheraldevicesandsensorsusing
seriallines.
ItcommunicateswiththeTransceiverUnit.
OperatingPanelpowersupply
Asmallpowersupplyisimplementedtoprovidestand-bypower
totheOperatingPanel.Thepowersupplyisconnectedtothe
ProcessorUnit.
Sonarroomunits
TransceiverUnit
TheSH90TransceiverUnitislocatedinthesonarroom,closeto
theHullUnit.
Thetransceiverperformsthetransmissionandreceptioncontrol
ofthe480transmittersand480receiverchannels.16identical
transceiverboardsareused.Adedicatedpowersupplyis
providedtosupplytherequiredDCvoltagestothetransceiver.
OneEthernetcableisusedforcommunicationwiththeProcessor
323775/B
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