Simrad SX90 - INSTALLATION REV C - Connecting the Course Gyro

Interfacingperipheralequipment
Note
Theoutputfromapulselogmustn e v e r beconnectedtomore
thanonesystemsimultaneously.Ifitisconnectedtothesonar ,
d
o n o t usethesameoutputtofeedothersystems.
Procedure
1Connectthespeedlogasdescribed.
2Testtheinterface.
Relatedtopics
•Speedloginterfacetestonpage134
•Pulsespeedloginterfaceonpage198
•RS-232totheInterfaceUnitonpage200
Connectingthecoursegyro
AcoursegyromustbeconnectedtotheInterfaceUnit.Thecable
mustbeprovidedbytheinstallationshipyard.TheSX90can
readthecourseinformationfromanRS-232serialline.Incase
whereonlya3-phasesynchroorsteppersignalisavailable,an
optionalGyroInterfaceUnitmustbeusedforconvertingthese
signalstoRS-232seriallineformat.Tickoffforthetypewhich
isconnected.
• GyrowithRS-232seriallineoutput
ThecoursedataontheRS-232seriallinemustbeona
standardNMEA0183telegramformat.Thetelegramcan
containboththespeedandthecoursedata.Connectthe
seriallinetoanyvacantport(TB1-7)intheInterfaceUnitas
describedinsectionRS-232totheInterfaceUnitonpage200.
Inordertoperformthephysicalconnectiontothecoursegyro,
refertotheapplicablegyrodocumentation.
•
Gyrowith3-phasesynchroorstepperoutput
Ifonlya3-phasesynchroorsteppersignalisavailable,an
optionalgyrointerfaceunitmustbeusedtoconvertthese
signalstoRS-232seriallineformat.AnLR40DigitalGyro
Repeatermaybeusedforinterfacingthefollowingsignals:
–3-phasesynchrosignal,20to115VL-L,50/60/400Hz,
gearratio1:360or1:180
–3-phasesteppersignal,20to115VL-L,gearratio1:360or
1:180
307531/C
133