Raymarine ST60 - Power Supply Connections

Chapter 3: Installation 25
Power supply connections
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
26 maximum
1
2
Up to 20 m 7 maximum
13 maximum
1
2
D4311-1
5 A fused,
12 V dc supply
(typically provided
by autopilot)
Red
Screen
Red
Screen
1234
Instruments
5 to 16
17
18
19
20
SeaTalk power connections
81039_4.book Page 25 Wednesday, March 24, 2004 3:14 PM