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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 sug-
gest 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 preceding fig-
ure.
The speaker should have either two terminals or two exposed wires: a
positive (+) and a negative (–) ground. Your unit's external audio out-
put is the white wire in the unit power supply cable. Connect this wire
to the speaker's positive (+) wire or terminal with white 18 gauge wire.
Connect the speaker's negative (–) ground wire or terminal to the nega-
tive (–) terminal on your battery or fuse box with black 18 gauge wire.
The unit should automatically begin to play any active sounds through
the attached speaker.
NMEA 2000 Cable Connections
NMEA 2000 is a new buss network specifically designed for boats. This is
a very young industry standard and, at the time of printing, a few boats
being built now have a NMEA 2000 buss installed. Over the next few
years, however, NMEA 2000 will become much more common. To help
you get the most out of this technology, your Lowrance unit is designed
to work with a NMEA 2000 network as soon as it becomes available.
Connecting to a NMEA 2000 Network
Your unit can be connected to a NMEA 2000 buss, receiving sensor infor-
mation from any Lowrance units attached to the buss. Contact LEI Extras
(look inside back cover for accessory ordering information) for a NMEA
2000 buss adapter cable if you would like to do this. You can connect both
the unit and antenna module through the antenna's extension cable (as
described earlier), or you can connect the unit directly to a network port.
