4.
Wind transducer
5.
Autopilot course computer and drive unit. This may also supply power to the SPX backbone.
6.
Speed / Depth transducers.
Note:
The multifunction display will require its own power connection. It cannot take its power from the SeaTalk
ng
backbone.
Seatalk
ng
SeaTalk
ng
(Next Generation) is an enhanced protocol
for connection of compatible marine instruments and
equipment. It replaces the older SeaTalk and SeaTalk
2
protocols.
SeaTalk
ng
utilizes a single backbone to which
compatible instruments connect using a spur. Data and
power are carried within the backbone. Devices that
have a low draw can be powered from the network,
although high current equipment will need to have a
separate power connection.
SeaTalk
ng
is a proprietary extension to NMEA 2000 and
the proven CAN bus technology. Compatible NMEA
2000 and SeaTalk / SeaTalk
2
devices can also be
connected using the appropriate interfaces or adaptor
cables as required.
NMEA 2000
NMEA 2000 offers significant improvements over
NMEA 0183, most notably in speed and connectivity.
Up to 50 units can simultaneously transmit and
receive on a single physical bus at any one time,
with each node being physically addressable. The
standard was specifically intended to allow for a whole
network of marine electronics from any manufacturer
to communicate on a common bus via standardized
message types and formats.
Planning the installation
13
Summary of Contents for SPX 10
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