
Annapolis Sailboat Show October 7, 2005 Maretron
Other NMEA 0183 Short Comings
Other NMEA 0183 Short Comings
•
•
Cable and connectors aren’t specified
Cable and connectors aren’t specified
–
–
Therefore Plug
Therefore Plug
-
-
n
n
-
-
play impossible
play impossible
»
»
(each manufacturer uses different connectors)
(each manufacturer uses different connectors)
•
•
No standardization of wire color coding
No standardization of wire color coding
–
–
Reliability compromised as connection methods not specified,
Reliability compromised as connection methods not specified,
corrosion due to poor wiring practices are common place
corrosion due to poor wiring practices are common place
•
•
Although NMEA 0183 is a standard, no certification process
Although NMEA 0183 is a standard, no certification process
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–
Standard is implemented differently by various engineers
Standard is implemented differently by various engineers
»
»
Leads to many interoperability issues (manufacturer A wont talk
Leads to many interoperability issues (manufacturer A wont talk
to
to
manufacturer B equipment)
manufacturer B equipment)
•
•
Ambiguities within NMEA 0183 Standard
Ambiguities within NMEA 0183 Standard
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–
Messages can be transmitted in one of several different sentence
Messages can be transmitted in one of several different sentence
s
s
leading to interoperability problems between different manufactu
leading to interoperability problems between different manufactu
rers’
rers’
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