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BASIC REQUIREMENTS
The following basic conditions are required for the digital network gauge system to install its compo-
nents onto a boat.
NMEA0183 COMPATIBLE EQUIPMENTS CONNECTION
The digital network gauge system accepts the signal of NMEA0183 version 2.0, 2.1, or 3.01 with fol-
lowing sentence.
* If the signal sentence is not shown on an electric unit or its instruction, ask to the manufacturer.
Item Conditions Symptom Note
Total amount quantity of unit
for connecting to the system
50 units or less (Including mar-
ket obtainable units, exclusive
gauges and engine ECUs).
Gauge unstably shows.
Gauge response is poor.
Check the system with the
optional checker.
Verify the conditions of sys-
tem.
Total amount length of the
main bus wires.
50 meter (164 feet) or less
Acceptable volume of digital
communication signals
50% or less of overall signal
capacity
Bus wires distance from elec-
trical noise equipments
(Antenna cable, Generator,
Radio, etc.)
30 cm (1 ft) and more
Temperature for performing
bus wires and hubs
80°C (176°F) or less
Date Sentence
Speed and Time RMC
Water depth DBT
Water surface temp. MTW
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