Installation And Maintenance; Wiring Options - NorthStar EXPLORER 443D Installation And Operation Manual

6 Installation and Maintenance

Correct installation is critical to the performance
of the Explorer 443d/443df. There are two
components to install, the display unit and the

Wiring Options

The power/data cable contains 5 wires:
Wire Function
Black Ground (power negative)
White* NMEA out
Red Positive power in, 12 V DC
Yellow Auto power in (connect to red
wire. Positive power in, to enable
Auto power).
Green* External beeper or light out,
switched to ground, 30 V DC 200
mA maximum.
Note: The cable shield is connected to Pin 1 (black
wire) and does not need to be grounded.
Denotes Explorer 443df only.
CAUTION
1 Amp fuses must be positioned where
shown in the wiring diagrams.
Basic wiring
This requires the Explorer 443d and Explorer
443df to be powered on manually with the
key.
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: Connect this to the black wire. This
disables the engine hours counter.
NMEA wiring Option (Explorer 443df 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.)
*
Northstar Explorer 443d/443df Installation and Operation Manual
transducer. It is vital to read the entire installation
section of this manual before attempting to
install the components.
Six wiring options are described in this section:
Basic wiring. This does not start the
•
fishfinder automatically when the boat
ignition is switched on and it disables the
engine hours counter.
Auto power wiring. This must be used for
•
the engine hours and fuel computer options.
Secondary Alarm wiring
•
NMEA wiring
•
• Single engine fuel wiring
Twin engine fuel wiring
•
Note: If a wire color is not specifically mentioned, it is
not used in that wiring option.
Section 6-5 Systems of several instruments,
describes NMEA and NavBus.
Power on the fishfinder manually whenever the
main switch is on.
Basic wiring
Fuse
Main
switch
12 V DC
Red
Yellow
Black
29