Systems Of Several Instruments - NorthStar EXPLORER 435 Installation And Operation Manual

Basic wiring
Fuse
Main
switch
12 V DC
NMEA wiring Option (Explorer 438 only)
White Wire: Use this, if desired, to connect
the fishfinder to other NMEA instruments such
as Northstar's Explorer R310. (See section 6-5

Systems of several instruments.)

Secondary alarm wiring option
(Explorer 438 only)
Green Wire: Use this to connect a secondary
alarm indicator such as a flashing light or external
beeper with a built-in drive circuit. See the Auto
power wiring diagram.
If the external beeper or light requires more than
200 mA total, fit a relay. Consult your Northstar
dealer for more advice.
Fuel kit wiring (Explorer 438 only)
See the Fuel Kit Installation Guide for information
about the fuel transducer cable.
Wire the power cable for Auto power (as
described in this section) to make sure the fuel
counter starts as soon as the engine starts.
For twin engine installation, a T-connector needs
to be installed on the fuel transducer cable.
Through hull transducers
Through hull transducers are supplied wth 'Y' adapter cable for
connection of both transducers into top socket with blue nut.
Speed/Temperature through hull transducer
6-5 Systems of several instruments
Several Northstar instruments can be connected
together to share data.
NMEA
NMEA is an industry standard for marine
instrument connections. Data sent by one
instrument over an NMEA line can be read and
26
Red
Yellow
Black
Through hull depth transducer
Northstar Explorer 435/438 Installation and Operation Manual
Auto power option
Black wire: Connect this to the negative
battery terminal.
Red wire: Connect this to the positive battery
terminal after the main switch. Fit a 1 Amp fuse
as shown.
Yellow wire: To enable the engine hours counter
and fuel counter; and to start the fishfinder
automatically when the ignition is turned on,
connect the yellow wire to the ignition system
through a 1 Amp fuse.
Note: The fishfinder cannot be turned off while the
ignition is on.
Auto power option
To ignition system
Fuse
Ignition
switch
Fuse
External Beeper
or Light
Main
switch
12 V DC
8 pin
displayed by another instrument that accepts
NMEA 0183 Version 2. It requires dedicated
connections between instruments.
Please contact your Northstar dealer for
information on Northstar's full range of NMEA
enabled instruments and connection options.
White (NMEA out)
Yellow
Red
Green
Black
phono