Garmin GNX 130 Installation Instructions Download Page 2

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.

The marine instrument connects to a NMEA 2000 network on 

your boat. The NMEA 2000 network provides power to the 

marine instrument and data from NMEA 2000 devices such as a 

wind sensor. The included NMEA 2000 cables and connectors 

allow you to either connect the device to your existing NMEA 

2000 network or create a basic NMEA 2000 network if needed.
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 the 

reference, go to 

www.garmin.com/manuals/GNX120

.

Item

Description

À

Wind sensor

Á

Marine instrument

Â

Ignition or in-line switch

Ã

NMEA 2000 power cable

Ä

NMEA 2000 drop cable

Å

12 Vdc power source

Æ

NMEA 2000 terminator or backbone cable

Ç

NMEA 2000 T-connector

È

NMEA 2000 terminator or backbone cable

Specifications

Device

Specification

Measurement

GNX 120 Dimensions (W x H x D) 181 x 115 x 17 mm (7.13 x 4.53 x 

0.7 in.)

Display size (W x H)

150 x 83 mm (5.9 x 3.27 in.)

Weight

380 g (13.4 oz.)

Max. power usage

0.5 W

Compass-safe distance 0 mm (0 in.)

Device

Specification

Measurement

GNX 130 Dimensions (W x H x D) 249 x 153 x 19 mm (9.8 x 6.02 x 

0.75 in.)

Display size (W x H)

207 x 116 mm (8.15 x 4.57 in.)

Weight

820 g (29 oz.)

Max. power usage

0.5 W

Compass-safe distance 0 mm (0 in.)

All models Water rating*

IEC 60529 IPX7

Temperature range

From -15 to 70°C (from 5 to 
158°F)

Material

Polycarbonate plastic

*The device withstands incidental exposure to water of up to 1 m 

for up to 30 min. For more information, go to 

www.garmin.com

/waterrating

.

NMEA 2000 PGN Information

Type

PGN

Description

Transmit and receive 059392 ISO acknowledgment

059904 ISO request
060928 ISO address claim
61184 Product information
126208 NMEA: Command, request, and 

acknowledge group function

126996 Product information

Transmit

126464 Transmit PGN list group function

Receive

126992 System time
127245 Rudder
127250 Vessel heading
127488 Engine parameters: Rapid update
127489 Engine parameters: Dynamic
127508 Battery status
128259 Speed: Water referenced
128267 Water depth
129025 Position: Rapid update
129026 COG and SOG: Rapid update
129029 GNSS position data
129283 Cross track error
129284 Navigation data
129285 Navigation route and waypoint info
129539 GNSS dilution of precision (DOP)
130306 Wind data
130310 Environmental parameters
130311 Environmental parameters
130312 Temperature
130313 Humidity
130314 Actual pressure

Garmin

®

 and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries. GNX

 is a trademark of Garmin Ltd. or its subsidiaries. These trademarks may not be 

used without the express permission of Garmin.
NMEA

®

, NMEA 2000

®

, and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association.

© 2015 Garmin Ltd. or its subsidiaries

www.garmin.com/support

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