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Switch Boxes
Two switch boxes are available for this unit. One transducer switch box
switches two transducers to one sonar unit. The other transducer switch
box switches two sonar units to one transducer.
If these accessories are not available from your dealer, see the
accessory ordering information on the inside back cover of this manual.
Visit our web site for a complete listing of all the available accessories
for your unit.
External Speaker
Your unit can play sounds to an external speaker. This feature can be
convenient any time you are away from the unit — especially in a
larger boat — but still want to hear its alarms. You might install a
small speaker at the stern of your boat so you won't miss a dangerous
Shallow Alarm while fishing, or put one in your galley so you can hear
the GPS Arrival Alarm.
You can purchase an external speaker and the wire to connect it at
your nearest audio or marine electronics store. You will need to buy
marine-grade 18 gauge stranded wire. Buy enough of one color (we
suggest white) to run from the unit's Power/Data cable to the speaker.
Buy enough of another color (we suggest black) to run from the speaker
to the battery or fuse box.
The unit is designed to work with most speakers, but make sure you
buy one that meets these minimum requirements:
• Minimum 8-ohm resistance
• Minimum 5-watt power
In your vessel or vehicle, mount the speaker wherever you want to hear
your unit's sounds. (Follow the speaker's installation instructions).
Next, connect the speaker to your unit as shown in the following figure.
