Raytheon ST60 - Power supply connections; SeaTalk systems; CAUTION: SeaTalk fuse

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ST60 Tridata Instrument Owner’s Handbook
S
P
E
E
D
D
E
P
T
H
White
Brown
Black
Screen
Blue
Connections to ST60 Tri Data instrument
Cable from Depth transducer
Cable from Speed transducer
Screen
Green
SeaTalk cable SeaTalk cable
D4423-1
Red
Power supply connections
SeaTalk systemsSeaTalk systems
SeaTalk systemsSeaTalk systems
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
040_2c03.p65 09/08/99, 09:3224