Raymarine P70 - System Protocols

4.SPXSmartPilot.
5.SeaTalk
ng
5–wayconnector.
6.Driveunit.
7.Rudderreferenceunit.
Example—SmartPilotsystem(SeaTalk)
SeaTalk
12 V
SeaTalk
6
3
75
D13028-1
21
4
1.p70/p70Rpilotcontroller(p70Rshown).
2.GPSReceiver.
3.SeaTalktoSeaT alk
ng
adaptorcable.
4.12VdcpowersupplytotheSmartPilot,alsosupplying
powertoSeaTalk.
5.Driveunit.
6.Rudderreferenceunit.
7.SmartPilot.
3.8Systemprotocols
Yourproductcanbeconnectedtovariousproductsandsystems
toshareinformationandsoimprovethefunctionalityofthe
overallsystem.Theseconnectionsmaybemadeusinga
numberofdifferentprotocols.Fastandaccuratedatacollection
andtransferisachievedbyusingacombinationofthefollowing
dataprotocols:
•SeaT alk
ng
•NMEA2000
•SeaT alk
Note:Youmayndthatyoursystemdoesnotuseallofthe
connectiontypesorinstrumentationdescribedinthissection.
Seatalk
ng
SeaTalk
ng
(NextGeneration)isanenhancedprotocolfor
connectionofcompatiblemarineinstrumentsandequipment.It
replacestheolderSeaT alkandSeaT alk
2
protocols.
SeaTalk
ng
utilizesasinglebackbonetowhichcompatible
instrumentsconnectusingaspur.Dataandpowerarecarried
withinthebackbone.Devicesthathavealowdrawcanbe
poweredfromthenetwork,althoughhighcurrentequipmentwill
needtohaveaseparatepowerconnection.
SeaTalk
ng
isaproprietaryextensiontoNMEA2000andthe
provenCANbustechnology.CompatibleNMEA2000and
SeaTalk/SeaTalk
2
devicescanalsobeconnectedusingthe
appropriateinterfacesoradaptorcablesasrequired.
NMEA2000
NMEA2000offerssignicantimprovementsoverNMEA0183,
mostnotablyinspeedandconnectivity.Upto50unitscan
simultaneouslytransmitandreceiveonasinglephysicalbusat
anyonetime,witheachnodebeingphysicallyaddressable.The
standardwasspecicallyintendedtoallowforawholenetwork
ofmarineelectronicsfromanymanufacturertocommunicateon
acommonbusviastandardizedmessagetypesandformats.
SeaTalk
SeaTalkisaprotocolwhichenablescompatibleinstrumentsto
connecttoeachotherandsharedata.
TheSeaTalkcablesystemisusedtoconnectcompatible
instrumentsandequipment.Thecablecarriespoweranddata
andenablesconnectionwithouttheneedforacentralprocessor.
AdditionalinstrumentsandfunctionscanbeaddedtoaSeaT alk
system,simplybypluggingthemintothenetwork.SeaTalk
equipmentcanalsocommunicatewithothernon-SeaTalk
equipmentviatheNMEA0183standard,providedasuitable
interfaceisused.
18
p70/p70R