Garmin GPSMAP 7400 Series Installation Instructions Manual Download Page 6

Device

Specification

Measurement

Ten-inch models

Max. power usage at 
10 Vdc

30 W

Typical current draw at 
12 Vdc

1.95 A

Max. current draw at 
12 Vdc

2.5 A

Fuse

6 A, 125 V fast-acting

Compass-safe distance

650 mm (25.6 in.)

Twelve-inch 
models

Max. power usage at 
10 Vdc

36 W

Typical current draw at 
12 Vdc

2.5 A

Max. current draw at 
12 Vdc

3.0 A

Fuse

6 A, 125 V fast-acting

Compass-safe distance

650 mm (25.6 in.)

Sixteen-inch 
models

Max. power usage at 
10 Vdc

57.2 W

Typical current draw at 
12 Vdc

3.82 A

Max. current draw at 
12 Vdc

5.24 A

Fuse

8 A, 125 V fast-acting

Compass-safe distance

850 mm (33.5 in.)

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 

acknowledge group function

126464 Transmit and receive PGN list group 

function

126996 Product information
127250 Vessel heading
128259 Speed: Water referenced
128267 Water depth
129025 Position: Rapid update
129026 COG and SOG: Rapid update
129029 GNSS position data
129540 GNSS satellites in view
130306 Wind data
130312 Temperature

Transmit

127258 Magnetic variance
129283 Cross track error
129284 Navigation data
129285 Navigation route and waypoint info

Receive

065030 Generator average basic AC quantities 

(GAAC)

126992 System time
127488 Engine parameters: Rapid update
127489 Engine parameters: Dynamic
127493 Transmission parameters: Dynamic
127504 AC output status
127505 Fluid level
127508 Battery status
129038 AIS class A position report
129039 AIS class B position report
129040 AIS class B extended position report
129539 GNSS DOPs

Type

PGN

Description

129794 AIS class A static and voyage related 

data

129809 AIS class B "CS" static data report, part 

A

129810 AIS class B "CS" static data report, part 

B

130310 Environmental parameters
130311 Environmental parameters (obsolete)
130313 Humidity
130314 Actual pressure

NMEA 0183 Information

Type

Sentence

Description

Transmit

GPAPB

APB: Heading or track controller 
(autopilot) sentence "B"

GPBOD

BOD: Bearing (origin to 
destination)

GPBWC

BWC: Bearing and distance to 
waypoint

GPGGA

GGA: Global positioning system 
fix data

GPGLL

GLL: Geographic position 
(latitude and longitude)

GPGSA

GSA: GNSS DOP and active 
satellites

GPGSV

GSV: GNSS satellites in view

GPRMB

RMB: Recommended minimum 
navigation information

GPRMC

RMC: Recommended minimum 
specific GNSS data

GPRTE

RTE: Routes

GPVTG

VTG: Course over ground and 
ground speed

GPWPL

WPL: Waypoint location

GPXTE

XTE: Cross track error

PGRME

E: Estimated error

PGRMM

M: Map datum

PGRMZ

Z: Altitude

SDDBT

DBT: Depth below transducer

SDDPT

DPT: Depth

SDMTW

MTW: Water temperature

SDVHW

VHW: Water speed and heading

Receive

DPT

Depth

DBT

Depth below transducer

MTW

Water temperature

VHW

Water speed and heading

WPL

Waypoint location

DSC

Digital selective calling 
information

DSE

Expanded digital selective calling

HDG

Heading, deviation, and variation

HDM

Heading, magnetic

MWD

Wind direction and speed

MDA

Meteorological composite

MWV

Wind speed and angle

VDM

AIS VHF data-link message

You can purchase complete information about National Marine 
Electronics Association (NMEA) format and sentences from: NMEA, 
Seven Riggs Avenue, Severna Park, MD 21146 USA (

www.nmea.org

)

6

Summary of Contents for GPSMAP 7400 Series

Page 1: ...ted with the memory card and select Next Finish Updating the Device Software Before you can update the software you must obtain a software update memory card or load the latest software onto a memory...

Page 2: ...on the template to prepare the mounting surface for cutting 4 Using a jigsaw or a rotary tool cut the mounting surface along the inside line on the template 5 Place the device in the cutout to test th...

Page 3: ...ecting any third party device such as a FLIR camera to a Garmin Marine Network Connecting a PoE device directly to a Garmin Marine Network chartplotter damages the Garmin chartplotter and may damage t...

Page 4: ...with a NMEA 0183 device the internal ports on the NMEA 0183 data cable are not linked For example if the input of the NMEA 0183 device is connected to the internal output port 1 on the data cable you...

Page 5: ...rk Connecting more than one chartplotter to one engine network may result in unexpected behavior The port labeled J1939 is used to connect the device to the existing engine network You must route the...

Page 6: ...report 129039 AIS class B position report 129040 AIS class B extended position report 129539 GNSS DOPs Type PGN Description 129794 AIS class A static and voyage related data 129809 AIS class B CS stat...

Page 7: ...t conditions 1 65271 Vehicle electrical power 65279 Water in fuel indicator 65272 Transmission fluids 1 65248 Vehicle distance 65266 Fuel economy liquid 65276 Dash display 65226 Active diagnostic trou...

Page 8: ...2016 2017 Garmin Ltd or its subsidiaries support garmin com...

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