1
Waterproof fuse holder containing a suitably-rated inline fuse must be fitted.
For suitable fuse rating, refer to:
In-line fuse and thermal breaker ratings
.
2
Product power cable.
3
Drain wire connection point.
Battery connection scenario A:
Suitable for a vessel with a common RF ground point. In this scenario, if your product’s power cable is
supplied with a separate drain wire then it should be connected to the vessel’s common ground point.
Battery connection scenario B:
Suitable for a vessel without a common grounding point. In this case, if your product’s power cable is
supplied with a separate drain wire then it should be connected directly to the battery’s negative
terminal.
Power cable extension
If you need to extend the length of the power cable supplied with your product, ensure you observe
the following advice:
• The power cable for each unit in your system should be run as a separate, single length of 2-wire
cable from the unit to the vessel's battery or distribution panel.
• For power cable extensions, a
minimum
wire gauge of 16 AWG (1.31 mm
2
) is recommended. For
cable runs longer than 15 meters, you may need to consider a thicker wire gauge (e.g. 14 AWG
(2.08 mm
2
), or 12 AWG (3.31 mm
2
) ).
• An important requirement for all lengths of power cable (including any extension) is to ensure that
there is a continuous
minimum
voltage at the product’s power connector of 10.8 V dc, with a
fully flat battery at 11 V dc.
Important:
Be aware that some products in your system (such as sonar modules) can create voltage peaks at
certain times, which may impact the voltage available to other products during the peaks.
Grounding
Ensure that you observe any additional grounding advice provided in the product’s documentation.
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