Chapter 3: Installation

25

SeaTalk cable

SeaTalk cable

Blue

Screen

Red

Yellow

Cable from Rotavecta

Blue

 

Green

Cable from Wind Vane

Red

Connections to ST60 Wind instrument

D4345-2

Power supply connections

SeaTalk systems

CAUTION:

When instruments are connected to SeaTalk, ensure that the power supply for the SeaTalk 12 V line is protected by a 5 A fuse.

Systems with a large number of instruments on the SeaTalk bus may require connections to the power supply from each end of the system (‘ring-main’ style), to maintain sufficient voltage throughout the system.

This requirement depends on the total length of the cable run and the total number of instruments in the system, as follows:

Cable run

No. of instruments

Power connections

 

 

 

Up to 10 m

13 maximum

1

 

26 maximum

2

 

 

 

Up to 20 m

7 maximum

1

 

13 maximum

2

 

 

 

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Image 37
Raymarine ST60 manual Power supply connections, SeaTalk systems