Implementation
If several items require grounding, they may first
be connected to a single local point (e.g. within a
switch panel), with this point connected via a single,
appropriately-rated conductor, to the boat’s common
ground. The preferred minimum requirement for the
path to ground (bonded or non-bonded) is via a flat
tinned copper braid, with a 30 A rating (1/4 inch) or
greater. If this is not possible, an equivalent stranded
wire conductor maybe used, rated as follows:
• for runs of <1 m (3 ft), use 6 mm
2
(#10 AWG) or
greater.
• for runs of >1 m (3 ft), use 8 mm
2
(#8 AWG) or greater.
In any grounding system, always keep the length of
connecting braid or wires as short as possible.
Important:
Do NOT connect this product to a
positively-grounded power system.
References
• ISO10133/13297
• BMEA code of practice
• NMEA 0400
3.7 SPX to SeaTalk
ng
connection
The SPX course computer and compatible control
heads can be connected using SeaTalk
ng
.
SeaTalk
ng
autopilot
SMART
PILOT
D10437-2
4
1
3
2
S
eaTalk
ng
1.
Helm position with SeaTalk
ng
autopilot controller
and instrument.
2.
SeaTalk
ng
backbone.
3.
Helm position with SeaTalk
ng
autopilot controller
and instrument.
4.
SPX course computer.
You can connect an autopilot controller at each helm
position.
Note:
Only autopilot controllers compatible with
SeaTalk
ng
can be connected to the backbone.
SeaTalk to SeaTalk
ng
Converter
The SeaTalk to SeaTalk
ng
converter can be used to
connect a SeaTalk autopilot controller to a SeaTalk
ng
network.
D12571-1
SeaTalk
ng
2
S
S
M
M
A
A
R
R
T
T
P
P
I
I
L
L
O
O
T
T
3
1
1.
SPX course computer.
2.
SeaTalk autopilot controller.
3.
SeaTalk to SeaTalk
ng
converter.
Note:
For correct operation using a SeaTalk to
SeaTalk
ng
converter please ensure that your SPX
course computer is upgrade to software version
3.00 or later and the SeaTalk to SeaTalk
ng
converter
to software version 1.14 or later. Please visit the
Raymarine website to download the latest software
for your products:
www.raymarine.com
.
SeaTalk
ng
connection to course computer
The course computer connects to the SeaTalk
ng
backbone using the spur cable supplied.
22
SPX10, SPX30, SPX-SOL
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