Specifications

SimradSH90
Thiscomputerservesseveralfunctions.Itperformstheadvanced
signalprocessingrequiredtopresenttheinformationonthe
display,anditallowsyoutocontrolthesonar.Itprovidesthe
graphicpresentationofthesonarmodesandtheimagescreated,
itholdsthemenusystem,itcommunicateswiththeTransceiver
Unit,andreadsinformationfromperipheralunits.
OperatingPanelpowersupply
Asmallpowersupplyisimplementedtoprovidestand-bypower
totheOperatingPanel.Thepowersupplyisconnectedtothe
ProcessorUnit.
Sonarroomunits
TransceiverUnit
TheSH90TransceiverUnitislocatedinthesonarroom,closeto
theHullUnit.
Thetransceiverperformsthetransmissionandreceptioncontrol
ofthe480transmittersand480receiverchannels.16identical
transceiverboardsareused.Adedicatedpowersupplyis
providedtosupplytherequiredDCvoltagestothetransceiver.
OneEthernetcableisusedforcommunicationwiththeProcessor
Unitinthewheelhouse,andasecondEthernetcableisusedto
controlthehullunit.ThethirdEthernetcableconnectstothe
PowerSupplyUnit.
Thetransducercablesfromthehullunitarepluggedintotheside
walloftheTransceiverUnitcabinetusingaspecialplug.
TheTransceiverUnitismountedonthebulkheadusingpowerful
shockabsorbers.Theconnectorsforpowerandinterfaceare
locatedatthebottomofthecabinet.
PowerSupplyUnit
Adedicatedpowersupplycabinetisusedtoprovidethe
TransceiverUnitwithoperationalpower.
HullUnit
TheHullUnitisdesignedtolowerthetransducer1.0meters
belowtheship’shull.
Thetransducercanalsobeloweredtoanyselectedmiddle
position.Incaseofvoltagefailure,thetransducercanberaised
orloweredmanuallybymeansofahandcrank.
Thesensorfortheelectronicstabilisationofthesonarbeams
ishousedintheMotorControlUnit,whichismountedonthe
HullUnit.
337405/A
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