4.3 Power connection
Always use the power cable provided with your product.
1
2
3
D12237-3
Item
Description
1
RED positive wire
2
Ground
3
BLACK negative wire
1
2
3
4
D
12238-1
Item
Description
1
Power supply
2
Sonar module
3
Vessel's RF ground
4
Transducer
The unit is intended for use on dc 'negative' or 'floating' ground
power systems rated from 10.2V to 32V.
Raymarine recommends that all power connections are made
via a distribution panel. All equipment must be either:
• powered from a circuit breaker or switch, with 5A circuit
protection, or
• powered from a 5A slow blow in-line fuse connected to the
RED positive wire of the power cable.
The unit does not have a power switch. The unit is powered
when the power cable is attached to the vessel's power supply.
Note:
The unit should be mounted so that the power cable
can be easily removed if necessary. If the unit is placed in a
difficult to reach location, Raymarine recommends installing
an on/off switch on the power connection at a point that is
easily accessible.
Warning: Do NOT connect a
SeaTalk
ng
backbone to a 24 V power
supply.
To avoid possible damage to equipment, do
NOT use the supplied power cable to connect a
SeaTalk
ng
backbone to a 24 V power supply.
Warning: Do NOT power this
product from a SeaTalk
ng
backbone
To avoid possible damage to equipment, do NOT
use a SeaTalk
ng
backbone as the power source for
this product.
Power cable extension
The product is supplied with a power cable, which can be
extended if required.
• 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.
• Raymarine recommends a
minimum
wire gauge of 18AWG
(0.82 mm
2
) for any length of cable extension.
• Regardless of the length of the cable extension, any cable
used should be capable of achieving a
minimum
voltage at
the unit of 10.8 V with a fully flat battery at 11 V.
Breakers, fuses and circuit protection
It is recommended that you fit a thermal breaker or fuse at the
distribution panel.
Thermal breaker rating
5 A (if only connecting one device)
Note:
The suitable fuse rating for the thermal breaker is
dependent on the number of devices you are connecting. If in
doubt consult an authorized Raymarine dealer.
Sharing a breaker
Where more than 1 piece of equipment shares a breaker you
must provide protection for the individual circuits. E.g. by
connecting an in-line fuse for each power circuit.
D11637-2
2
4
4
1
3
+
-
1
Positive (+) bar
2
Negative (-) bar
3
Circuit breaker
4
Fuse
Where possible, connect individual items of equipment to
individual circuit breakers. Where this is not possible, use
individual in-line fuses to provide the necessary protection.
Cables and connections
21
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