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2.4.3. NMEA2000-0183 Data Conversion and NMEA2000 Bridging
NMEA0183 to NMEA2000 conversion
NMEA0183 sentences and NMEA2000 PGNs, which are used and accepted in the MFD
network can be converted and output in either/both NMEA0183/NMEA2000 formats.
Note that only one type of data can be converted and output at a time (one position, one
depth, one heading…). In case of multiple GPS sensors, the position output is the one
currently selected as the primary sensor in an MFD network. This NN3D prioritizing
function allows NMEA2000 products to utilize older NMEA0183 sensors and vice-versa.
For example, you can connect a NMEA0183 Wind Instrument such as the Airmar
PB100 to NavNet3D, and have the corresponding information output on one (or several)
MFD NMEA2000 ports to feed a NMEA2000 display such as the Furuno FI50. The
opposite is also true.
Ethernet Bridging of Individual NMEA2000 Networks/Backbones
You may ONLY connect one MFD or DRS to the same NMEA2000 Network. Some
NN3D vessels may contain several smaller NMEA2000 Networks where data from each
NMEA2000 network is linked via the High-Bandwidth NN3D Ethernet Network. In these
cases, each separate NMEA2000 network will be “Bridged” together via the NN3D
Ethernet Network. NN3D MFD NMEA2000 and DRS CANBUS ports shall also not be
connected together. In the case where NMEA2000 engine data, or other ship’s data, is
introduced to the NN3D Network, the connection is made to only one MFD, and this
MFD will bridge the data to other MFDs in the network.
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