Simrad SU90 - Synchronisation of the Sonar Clock with an External Clock

SimradSU90
Synchronizationtiming:Masterin“Waitforslave”mode
Triggersignals
Ifconnectedtoanexternalsynchronizingsystem,theRTSandCTSareboth+5VTTL
signals,triggeringonpositiveslope.
•TrigIn:CTSpin8ona9-pinRS–232plug(D-connector)
–WhenthesystemisoperatingasMasterinWaitforslavemode(orasaSlave)the
systemtriggeronpositiveslopewhenthelevelexceeds+3V.
•TrigOut:RTSpin7ona9-pinRS–232plug(D-connector)
–Thissignalisloweredfrom+10Vto–10Vatthestartoftransmission,andreturns
to+10Vattheendofthetransmission.
Synchronisationofthesonarclockwithan
externalclock
TheSimradSU90maybeconnectedtoanexternalclock.Ifrequired,thesonar'sinternal
clockmaythenbesynchronisedand/orcontrolledbytheexternalclock.
Inordertotakeadvantageofanexternalclock,thetimeinformationmustbeprovided
antheZDAtelegramformat,andtheexternaldeviceprovidingthetelegramsmust
beconnectedasaGPSsystem.
Tochangethesettingsinthesonarsystemtoacceptandusetheexternaltime,you
willneedtoobservethefollowingsteps:
1OpentheInstallationmenu
2MakethechangeontheI/OSetupmenu.
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