JRC JLN-900 - Block Diagram

6-5
1.4 Block Diagram
ROT-gyro
In docking-log
Systems only
NJC-80
Sig. Processor
STransducer
with 30m cable
NQA-4480
Sig. Distributor
x 4 change over contacts
x 4 closing contacts
x 8 opto couplers
x 2 analog outputs
x 23 NMEA 0183 outputs for
SD4 displays and other
NMEA listeners
x 9 power outputs for
indicators, 12-28 VDC
x 24V DC outputs for ESD,
ROT-gyro etc
x 9 NMEA 0183 inputs from
speed log, SD4 main
display and other NMEA
talkers
x 4 Opto inputs for control
signals
x 1 RS 232 port for
older ESD / MFD
Intake AC Power
NMEA0183 data
A
nalog (option)
NWW-82 Main display
STW/SOG display
NMEA0183 data
DC Power
NWW-85
Docking Display
Dki l dil
NMEA0183 data
DC Power
NWW-82 Main Display
Speed Log Master Displa
y
Log Remote Control
NMEA0183 data
DC Power
NMEA 0183
A
nalogue Speed
Indicator NWW-828
A
na.out 0.1V/knot
DC Power
NMEA Consumer
NMEA0183 data
200p/NM Consumer
200p/NM
NMEA0183 data out
NMEA 0183
NMEA0183 redundant
Redundant Power
NKF-980
Sea Valve
whit CFT-780
Transducer
This block diagram shows the general layout of the system. Data is received from the JLN-900
speed log and the ROT (rate of turn) gyro. Also a speed log (STW only) can be connected to
the Sig. Distributor. Processing is done in the Sig. Distributor, which also serves as data
distribution/interfacing unit. The exact wiring depends on each installation, depending on
which displays are needed, what turn-rate gyro is used etc.