Raymarine SmartPilot SPX-10, Installation Instructions Manual

Page: 16 / 50

2.4 SeaTalk autopilot system
The autopilot may be connected as part of a wider network of
marine electronics using SeaTalk.
2 3
1
12 / 24 V
SMART PILOT
D10434-2
SeaTalk SeaTalk
SeaTalk
4
1. Multifunction display with GPS. (GPS may be internal or
external.)
2. Wind and depth instruments
3. Autopilot controller
4. Autopilot course computer and drive unit. This may also supply
power to SeaTalk instruments and the autopilot controller.
Note: The multifunction display will require its own power
connection. It cannot take its power from SeaTalk.
SeaTalk
SeaTalk is a protocol which enables compatible instruments to
connect to each other and share data.
The SeaTalk cable system is used to connect compatible
instruments and equipment. The cable carries power and data and
enables connection without the need for a central processor.
Additional instruments and functions can be added to a SeaTalk
system, simply by plugging them into the network. SeaTalk
equipment can also communicate with other non-SeaTalk equipment
via the NMEA 0183 standard, provided a suitable interface is used.
NMEA 0183
The NMEA 0183 Data Interface Standard was developed by
the National Marine Electronics Association of America. It is an
international standard to enable equipment from many different
manufacturers to be connected together and share information.
The NMEA 0183 standard carries similar information to SeaTalk.
However it has the important difference that one cable will only
carry information in one direction. For this reason NMEA 0183 is
generally used to connect a data receiver and a transmitter together,
e.g. a compass sensor transmitting heading to a radar display. This
information is passed in ‘sentences’, each of which has a three
letter sentence identifier. It is therefore important when checking
compatibility between items that the same sentence identifiers are
used some examples of which are:
16 SPX SmartPilot installation instructions