Connect The Control Head Power Cable - Humminbird ONIX8 Installation Manual

Connecting the Power Cable
Fuse Terminal Connection
Power Fuse Terminal or
Cable Battery Switch
Black Wire (–) Ground
Red Wire (+) 12 VDC
Battery Switch Connection
Connecting the Power Cable
to the Power-Speed-Temp Port
(magnified view)
screw nut
cable label
(optional)
port cover
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ONNECT THE ONTROL
A 6 ft (2 m) power cable is included to connect power to the control head. You may shorten
or lengthen the cable using 18 gauge multi-stranded copper wire.
CAUTION! Some boats have 24 or 36 Volt electric systems, but the control head MUST
be connected to a 12 VDC power supply.
WARNING! Humminbird is not responsible for over-voltage or over-current failures.
The control head must have adequate protection through the proper selection
and installation of a 5 Amp fuse (recommended fuse type: slow-blow, time-delay, or
time-lag).
Connect to Power
The power cable can be connected to a fuse panel (usually located near the console) or to
a battery switch.
1. Make sure that the power cable is disconnected from the control head.
Fuse Terminal Connection
2a. Use crimp-on type electrical connectors (not included) that match the terminal on the
fuse panel. Attach the black wire to ground (–), and the red wire to positive (+)12 VDC
power. Install a 5 Amp fuse (not included) for protection of the unit.
OR
Battery Switch Connection
2b. Install the battery switch (not included) using the instructions provided with it. You will
also need to install an inline fuse holder and a 5 Amp fuse (not included) for protection
of the unit. Attach the black wire to (–) ground, and the red wire to (+)12 VDC power.
NOTE: In order to minimize the potential for interference with other marine
electronics, a separate power source (such as a second battery) may be necessary.
3. Route the power cable to the Humminbird control head, and insert the connector into
the POWER-SPEED-TEMP port. The ports are labeled, and the connectors are keyed to
prevent incorrect installation. Hand-tighten the screw nut to secure the cable
connection.
CAUTION! Do NOT mount the cables where the connectors could be submerged in
water or flooded. If cables are installed in a splash-prone area, it may be helpful to
apply dielectric grease to the inside of the connectors to prevent corrosion.
Dielectric grease can be purchased separately from a general hardware or
automotive store.
Proceed to the section Test and Finish the Installation.
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EAD OWER ABLE

Connect the Control Head Power Cable