Garmin GNX 20 Marine instrument Istruzione Sull'Installazione
Wire Color Wire Function
Brown
Rx/A (+)
Green
Rx/B (-)
NMEA 0183 Connection Diagrams
This diagram is an example of a connection to a standard
NMEA 0183 device with two Tx wires.
Item Description
À
Marine instrument with a NMEA data cable (not included)
Á
12 Vdc power source
Â
NMEA 0183-compliant device
Item Garmin Wire
Function
Garmin Wire
Color
Color
NMEA 0183 Device
Wire Function
Wire Function
Ê
N/A
N/A
Power
Ë
N/A
N/A
Data ground
Ì
Rx/A (+)
Brown
Tx/A (+)
Í
Rx/B (-)
Green
Tx/B (-)
This diagram is an example of a connection to a standard
NMEA 0183 device with one Tx wire.
Item Description
À
Marine instrument with a NMEA data cable (not included)
Á
NMEA 2000 network (must connect to the same ground as the
NMEA data cable)
NMEA data cable)
Â
12 Vdc power source
Ã
NMEA 0183-compliant device
Item Garmin Wire
Function
Garmin Wire
Color
Color
NMEA 0183 Device
Wire Function
Wire Function
Ê
N/A
N/A
Power
Ë
N/A
N/A
Power ground
Ì
Rx/B (-)
Green
Data ground
Í
Rx/A (+)
Brown
Tx
This diagram is an example of a connection to a Garmin HVS
GPS antenna.
Item Description
À
Marine instrument with a NMEA data cable (not included)
Á
12 Vdc power source
Â
Garmin HVS GPS antenna
Item Marine Instrument Wire Color
Antenna Wire Color
Ê
N/A
Red
Ë
Black
Black
Ì
Yellow
Orange
Í
Blue
White
Î
White
White/orange
Ï
Brown
Gray
Ð
Green
White/red
Specifications
Specification
Measurement
Dimensions without sun cover
(H×W×D)
(H×W×D)
110 x 115 x 30 mm (4.33 x 4.53 x
1.18 in.)
1.18 in.)
Dimensions with sun cover
(H×W×D)
(H×W×D)
115 x 120 x 35.5 mm (4.53 x 4.72 x
1.40 in.)
1.40 in.)
Weight without sun cover
247 g (8.71 oz.)
Weight with sun cover
283 g (9.98 oz.)
Temperature range
From 5° to 158°F (from -15° to 70°C)
Compass-safe distance
209 mm (8.25 in.)
Material
Case: fully-gasketed polycarbonate,
waterproof to IEC 60529 IPX7
standards
Lens: glass with an anti-glare finish
waterproof to IEC 60529 IPX7
standards
Lens: glass with an anti-glare finish
Power usage
2.5 W max
Unit max. voltage
32 Vdc
NMEA 2000 input voltage
9–16 Vdc
NMEA 2000 load equivalency
number (LEN)
number (LEN)
6 (300 mA at 9 Vdc)
NMEA 2000 PGN Information
Type
PGN
Description
Transmit and receive 059392 ISO acknowledgment
059904 ISO request
060928 ISO address claim
126208 NMEA: Command, request, and
060928 ISO address claim
126208 NMEA: Command, request, and
acknowledge group function
126464 Transmit PGN list group function
126996 Product information
126996 Product information
Receive
126992 System time
127245 Rudder
127250 Vessel heading
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
127245 Rudder
127250 Vessel heading
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
NMEA 0183 Information
When connected to an optional NMEA 0183 compatible device,
the instrument can receive these NMEA 0183 sentences.
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