Raymarine HSB Chartplotter, User Manual

Page: 130 / 154

Chapter 6: Installation 113
Using the SeaTalk Auxiliary Junction Box to Connect
a SeaTalk GPS
A junction box (provided with the RL70RC, optional with the RL70) is
used to connect the SeaTalk GPS system (or any other SeaTalk
instrument) to the HSB Series display unit. This junction box enables the
SeaTalk bus, power and GPS to be connected.
If power is not already available (via another SeaTalk instrument), the
junction box can be used to apply power to the Seatalk bus for other
applications. The junction box may also be used for other purposes, e.g.
supplying power to a flux gate compass and routing the compass data to
the HSB series display NMEA In connection, or alternatively, for
connecting a NMEA GPS system.
The junction box includes:
• Seatalk cable and connector to attach to display unit
• Power Cable to connect to 12V power (if required)
• Input connections to connect SeaTalk cable from external
equipment
• Spare connections for another instrument
The illustration below shows how to connect the 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 SeaTalk GPS
Power Out: 1 & 2
Power In: 1 & 3
To Display Unit
SeaTalk Socket
D4291-1
Using the
SeaTalk Auxiliary
Junction Box