Raymarine RL80C Plus Spécifications Page 207

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Chapter 8: Installation 8-29
Using the SeaTalk Auxiliary Junction Box
Ajunction box(providedwiththeradar/chartand chartdisplays;optional
withthe radardisplays)is usedto connect theSeaTalksystemto the display
unit.This junctionbox enables theSeaTalkbus, power and GPS to be
connected.
Ifpower is not alreadyavailable(via anotherSeaTalk instrument), the
junctionboxcanbeusedtoapplypower to the SeaTalkbusforother
applications. The junctionbox may alsobe used forotherpurposes, e.g.
supplyingpowertoafluxgate compass androutingthe compass datatothe
displayNMEA Inconnection, oralternatively, forconnectinga NMEA GPS
system.
Thejunctionbox includes:
SeaTalkcable and connectorto attachto displayunit
Powercable to connectto 12 Vpower (if required)
Inputconnectionsto connect SeaTalkcablefrom externalequipment
Spareconnectionsfor anotherinstrument
CAUTION:
Ensurecorrect polarityofthe12Vsupplybeforeapplyingradar or
SeaTalkpower. Itisrecommendedthata multimeterisusedtocheckthe
connections.
Figure 8-18shows how to connectthejunctionbox; Appendix Bprovides
connectiondetailsforspecificGPSand BeaconReceiversystems.
Figure 8-18: Using the Auxiliary Junction Box
Core
Black (screen)
Red
Yellow
Black (screen)
Red
Black (screen)
Red
Yellow
12V
Power
Supply
Spare
Input
Cable
SeaTalk
Power
GPS
Terminal
1
2
3
1
2
1
2
3
Function
0V
+12v
SeaTalk
0V
+12V
0V
+12V
SeaTalk
To GPS
Power Out: 1 & 2
Power In: 1 & 3
To Display Unit
SeaTalk Socket
D4291-1
Fused
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