Chapter 3: Installation

25

SeaTalk cable

SeaTalk cable

Black

Blue

Cable from Depth transducer

Cable from Speed transducer

D

E P T H

Screen

 

 

 

D

 

 

E

 

E

 

P

 

 

S

 

 

 

 

 

 

Brown

 

 

 

White

 

 

 

Screen

 

 

 

Green

 

 

 

Red

Connections to ST60 Tridata instrument

D4423-1

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

 

 

 

Page 37
Image 37
Raymarine ST60 Tridata manual Power supply connections, SeaTalk systems