16 | System architecture
Data Bridging
• Supported NMEA0183 sentences entering the system are bridged (converted) to
SimNet/NMEA2000 and distributed on the SimNet backbone for all other displays to
use
• Certain SimNet /NMEA2000 PGNs (messages/sentences) are bridged across to
NMEA0183 to be available as an output from any NSE display
• Ethernet to SimNet. Limited data is bridged from the Ethernet echosounder. Speed,
depth and temperature are bridged to SimNet and NMEA0183. Depth, speed and
temperature data from the echosounder is the only data bridged from Ethernet
PLOT
MARK
GO TO
VESSEL
MENU WIN
OUT
RANGE
IN
1
2
3
65
89
7
PQRS
TUV
WXYZ
MNO
JKL
ABC DEF
GHI
4
0
STBY
AUTO
MOB
MOB
PWR
ECHORADARCHART NAV INFO PAGES
0183
PLOT
MARK
GO TO
VESSEL
MENU WIN
OUT
RANGE
IN
1
2
3
65
89
7
PQRS
TUV
WXYZ
MNO
JKL
ABC DEF
GHI
4
0
STBY
AUTO
MOB
MOB
PWR
ECHORADARCHART NAV INFO PAGES
NMEA0183
RX -
RX +
TX -
TX +
NMEA0183 Talker
SimNet Network
GPS
Heading
DISPLAY 1
DISPLAY 2
SimNet Network
NMEA0183 Listner
A
B
C
Example of data bridging
A In this example a NMEA0183 (talker) is connected to DISPLAY 1
B The NMEA sentences are bridged across to SimNet and distributed on the
SimNet network
C The NMEA0183 listener connected to DISPLAY 2 can receive the NMEA0183
sentences from the device connected to DISPLAY 1 and also from other de-
vices that are on the SimNet network
An NMEA talker can be connected to each NSE display and both set of data will be
converted to SimNet. Each display can be setup for outputting selected NMEA sentences.
Speed, temp and depth data from the echosounder transducer that is to be displayed
as an instrument has to bridged from ethernet to SimNet. A NSE display has to be
nominated to bridge the data. If this nominated display is turned off, no data will be
displayed, until the display is turned on or another display is selected to bridge the data.
(see “Source selection (Auto select)” on page 51)
NMEA0183 to SimNet bridging only applies to the supported NMEA0183 sentences. (see
“Supported NMEA0183 sentences” on page 81)