Humminbird APEX Series Installation Manual page 10

APEX™ SERIES CONTROL HEAD Installation Guide
1. Confirm that the power cable is disconnected from the control head.
2. Connect the power cable wires to the fuse panel or battery as follows:
Fuse Terminal Connection: 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 the required fuse (as shown in the Required Fuse Size table).
Battery Connection: Install an inline fuse holder (not included) and the required fuse (as shown
in the Required Fuse Size table). Attach the black wire to ground (–), and the red wire to positive
(+) 12 VDC power.
NOTE: For multi-control head installations and troubleshooting information, download the Power
Troubleshooting Guide from our Web site at humminbird.com. Also, see the Operations Summary
Guide to set the Low Battery Alarm and use Standby Mode to conserve power.
NOTE: If you have a trolling motor, it is important to keep the control head power and trolling motor
power as separate as possible.
NOTE: If you cut the power cable and expose the shield/drain wire, do not connect the ground and
shield/drain wires together to negative (-) 12V. Trim the shield close to the cable jacket/insulation.
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| Route the Cables to the Control Head
1. Sonar: Proceed to your transducer installation guide and follow the instructions to install the
transducer.
2. Accessories (optional): Install accessories using the guides provided with them.
3. Ethernet (optional): Install Ethernet cables and hardware using the Ethernet Installation Guide.
NOTE: The installation guides for Ethernet and optional-purchase accessories are available
with your product, and they can be downloaded from our Web site at humminbird.com.
4. Route all cables to the control head. Your boat may have a pre-existing wiring channel or
conduit that you can follow. Route the cables as far as practical from the antenna cable of VHF
radios or tachometer cables to reduce the possibility of interference.
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.
5. Pass the cables through the cable hole.
Routing the Cables Behind the Bracket
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532744-1_A
Inline fuse holder
NMEA 2000® Port
(optional)
Net S
(+) Power
Net C
(-) Ground
LEN = 2