Garmin nuvi 500-Series Installationsanleitung Handbuch - Seite 4
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NMEA 0183 Connection Diagram
Item
Description
12 Vdc power source
Wiring harness
NMEA 0183 compliant device
Item Garmin Wire
Garmin Wire
Function
Color
Power
Red
Ground
Black
Tx/Rx
Tx
Blue
Rx
Brown
Lamp or Horn Connections
The device can be used with a lamp, a horn, or both, to sound
or flash an alert when the chartplotter displays a message. This
is optional, and the alarm wire is not necessary for the device to
function normally. When connecting the device to a lamp or
horn, observe these considerations.
• The alarm circuit switches to a low-voltage state when the
alarm sounds.
• The maximum current is 100 mA, and a relay is needed to
limit the current from the chartplotter to 100 mA.
• To manually toggle visual and audible alerts, you can install
single-pole, single-throw switches.
Item Description
Power source
Power cable
Horn
Lamp
Relay (100 mA coil current)
Toggle switches to enable and disable lamp or horn alerts
Item
Wire Color
Red
Black
Yellow
NMEA 2000 ® Considerations
If you have an existing NMEA 2000 network on your boat, it
should already be connected to power. Do not connect the
NMEA 2000 power cable to an existing NMEA 2000 network,
because only one power source should be connected to a
NMEA 2000 network.
If you are installing a NMEA 2000 power cable, you must
connect it to the boat ignition switch or through another in-line
switch. NMEA 2000 devices will drain your battery if the NMEA
2000 power cable is connected to the battery directly.
4
-
+
NMEA 0183 Device Wire
Function
Power
Data ground
Tx/Rx/B (-)
Rx/A (+)
Tx/A (+)
Wire Function
Power
Ground
Alarm
NOTICE
NMEA 2000 compatible models can connect to a NMEA 2000
network on your boat to share data from NMEA 2000 compatible
devices such as a VHF radio. The necessary NMEA 2000
cables and connectors are sold separately.
If you are unfamiliar with NMEA 2000, you should read the
"NMEA 2000 Network Fundamentals" chapter of the Technical
Reference for NMEA 2000 Products. To download this
document, select Manuals on the product page for your device
at www.garmin.com.
The port labeled NMEA 2000 on the back of the device is used
to connect it to a standard NMEA 2000 network.
Item
Description
NMEA 2000 compatible Garmin device
NMEA 2000 drop cable
NMEA 2000 power cable
Ignition or in-line switch
12 Vdc power source
NMEA 2000 terminator or backbone cable
NMEA 2000 T-connector
NMEA 2000 terminator or backbone cable
Connecting the Device to a Transducer
Devices that can receive depth information from a Garmin
transducer have a port labeled SONAR. Go to
or contact your local Garmin dealer to determine the appropriate
type of transducer for your needs.
1
Follow the instructions provided with your transducer to
install it on your boat correctly.
2
Route the transducer cable to the back of your device, away
from sources of electrical interference.
3
Connect the transducer cable to the SONAR port on your
device.
Connecting the Device to a Remote GPS
Antenna
This device has an internal GPS receiver, but some
installations, such as a flush-mount installation, may not allow a
view of the sky needed to calculate your GPS position. In this
situation, you can install a Garmin external GPS antenna and
connect it to the device to provide GPS information.
Devices that can receive information from a Garmin external
GPS antenna have a port labeled EXT GPS.
1
Follow the instruction provided with your Garmin external
GPS antenna to install it on your boat correctly.
2
Route the antenna cable to the back of your device, away
from sources of electrical interference.
3
Connect the antenna cable to the EXT GPS port on your
device.
www.garmin.com