Garmin GNX 120 7_inch Installation Instructions
GNX™ 120/130
Installation Instructions
Important Safety Information
WARNING
See the Important Safety and Product Information guide in the
product box for product warnings and other important
information.
CAUTION
Always wear safety goggles, ear protection, and a dust mask
when drilling, cutting, or sanding.
NOTICE
When drilling or cutting, always check what is on the opposite
side of the surface.
Registering Your Device
Help us better support you by completing our online registration
today.
• Go to http://my.garmin.com.
• Keep the original sales receipt, or a photocopy, in a safe
place.
Contacting Garmin® Product Support
• Go to http://www.garmin.com/support for in-country support
information.
• In the USA, call 913-397-8200 or 1-800-800-1020.
• In the UK, call 0808 238 0000.
• In Europe, call +44 (0) 870 850 1241.
Tools Needed
• Drill and drill bits
◦ 44 mm (1 3/4 in.) hole saw
◦ 4.5 mm (3/16 in.) drill bit
• Marine sealant (recommended)
Installing the Device
Mounting Considerations
NOTICE
This device should be mounted in a location that is not exposed
to extreme temperatures or conditions. The temperature range
for this device is listed in the product specifications. Extended
exposure to temperatures exceeding the specified temperature
range, in storage or operating conditions, may cause device
failure. Extreme-temperature-induced damage and related
consequences are not covered by the warranty.
The mounting surface must be flat to avoid damaging the device
when it is mounted.
When selecting a mounting location, observe these
considerations.
• The mounting location should be at or below eye level to
provide optimal viewing as you operate your vessel.
• The mounting surface must be strong enough to support the
weight of the device and protect it from excessive vibration or
shock.
• To avoid interference with a magnetic compass, the device
should not be installed closer to a compass than the
compass-safe distance value listed in the product
specifications.
• The area behind the mounting surface must allow room for
the routing and connection of the cables.
Mounting the Device
1 Trim the flush-mount template and ensure it will fit in the
location where you plan to mount the marine instrument.
The flush-mount template is included in the product box.
2 Secure the template to the selected mounting location.
3 Using a 44 mm (1 3/4 in.) hole saw or rotary cutting tool, cut
the hole in the center of the template.
4 Drill the 4.5 mm (3/16 in.) mounting holes.
5 Remove the remainder of the template.
6 Install the threaded rods
À
in the back of the marine
instrument.
7 Place the included gasket
Á
on the back of the device.
You should apply marine sealant around the gasket to
prevent leakage behind the dashboard (recommended).
8 Place the marine instrument into the cutout
Â
.
9 Securely fasten the marine instrument from behind the
mounting surface by tightening the supplied thumb nuts
Ã
on
the threaded rods.
10Connect the NMEA 2000® drop cable and route it to your
NMEA 2000 backbone.
11Snap the bezel into place.
Connection Considerations
The marine instrument connects to power and to data sources
through a NMEA 2000 network.
Although the instrument cannot directly receive NMEA® 0183
data, it can display NMEA 0183 data from sources connected to
a GNX 20 or GNX 21 device (sold separately) on the same
NMEA 2000 network.
The instrument can also receive data from Nexus® instruments
and sensors using a GND™ 10 device (sold separately).
NMEA 2000 Connection Considerations
NOTICE
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.
March 2015
Printed in Taiwan
190-01846-02_0A
Also See for Garmin GNX 120 7_inch
- Garmin GNX 120 7_inch Flush Mount Template 2 pages
- Garmin GNX 120 7_inch Owner's Manual 12 pages
- Garmin GNX 120 7_inch Declaration of Conformity 6 pages
- Garmin GNX 120 7_inch Declaration of Conformity 1 pages
- Garmin GNX 120 7_inch Flat Mount Template 2 pages
- Garmin GNX 120 7_inch Flush Mount Template 2 pages
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