
Annapolis Sailboat Show October 7, 2005 Maretron
NMEA 2000
NMEA 2000
®
®
Because:
Because:
•
•
NMEA 0183 Short
NMEA 0183 Short
-
-
Comings
Comings
–
–
Point
Point
-
-
to
to
-
-
point
point
-
-
complex wiring
complex wiring
–
–
No physical layer specified
No physical layer specified
-
-
plug
plug
-
-
n
n
-
-
play impossible
play impossible
–
–
No real
No real
-
-
time data sharing between multiple equipment
time data sharing between multiple equipment
–
–
Lack of bandwidth for today's digital world
Lack of bandwidth for today's digital world
–
–
No certification process
No certification process
-
-
interoperability issues
interoperability issues
–
–
Interpretation ambiguities leads to interoperability
Interpretation ambiguities leads to interoperability
•
•
Ethernet protocols Short
Ethernet protocols Short
-
-
Comings
Comings
–
–
Not suitable real time control applications
Not suitable real time control applications
–
–
Costly
Costly
for simple sensors (i.e., temperature, voltage, etc.)
for simple sensors (i.e., temperature, voltage, etc.)
–
–
More power consumption than CAN
More power consumption than CAN
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