Raymarine HSB Chartplotter User Manual - A Seatalk Gps

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