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Installation 13
Planning the installation
Before you install your display, the following points should be
considered:
• Power requirements.
• Cable runs.
• Display location and mounting options.
• Additional accessories, e.g. keyboard or speakers.
Power requirements
Your Sunlight Viewable display is designed to run on boat’s DC
power systems rated at 12 V or 24 V. A cable of 1.5 m length is
supplied for connecting the display to your boats DC power
system.
The DC power system should be either:
• Negative grounded, with the negative battery terminal connected
to the boat’s ground, or,
• Floating, with neither battery terminal connected to the boat’s
ground.
Grounding the display
It is important that an effective radio frequency (RF) ground is
connected to the display. You must ground the display by
connecting the drain wire (shield) of the power input cable to the
nearest ground point of the boat’s RF ground system.
Power connections
The power connection to the display should be made at either
the output of the battery isolator switch, or at a DC power distri-
bution panel. Raymarine recommends that power is fed directly
to the display via its own dedicated cable system and MUST be
protected by a thermal circuit breaker or fuse, fitted close to the
power connection. If you do not have a thermal circuit breaker or
fuse in your power circuit, you MUST fit an in-line breaker or
fuse to the positive (red) lead of the power cable.
Refer to the following table for isolator switch circuit breaker or
fuse value ratings.
Check all terminal connections are clean.
CAUTION
Power requirements
This display is not intended for use on boats with
“positive” ground. The power input cable earth
screen connections must be connected directly
to the boats ground.
CAUTION
Thermal circuit breaker
If you do not have a thermal circuit breaker or
fuse in your power circuit, e.g. fitted to the DC
distribution panel, you MUST fit an in-line breaker
or fuse to the positive (red) lead of the power
cable.
81277_1.book Page 13 Thursday, August 17, 2006 1:51 PM