Installation Instructions
Item Description
À
Power source
Á
Power cable
Â
Horn
Ã
Lamp
Ä
NMEA 0183 cable
Å
Relay (100 mA coil current)
Æ
Toggle switches to enable and disable lamp or horn alerts
Item Wire Color Wire Function
Ê
Red Power
Ë
Black Ground
Ì
Yellow Alarm
J1939 Engine Network Connection Considerations
NOTICE
You must use a Garmin GPSMAP J1939 accessory cable when
connecting the chartplotter to the J1939 engine network to
prevent corrosion due to moisture. Using a different cable voids
your warranty.
If you have an existing engine network on your boat, it should
already be connected to power. Do not add any additional power
supply.
This chartplotter can connect to an engine network on your boat
to read data from compatible devices such as certain engines.
The engine network follows a standard and uses proprietary
messages.
You should connect only one chartplotter to one engine network.
Connecting more than one chartplotter to one engine network
may result in unexpected behavior.
The port labeled ENGINE/J1939 is used to connect the device
to the existing engine network. You must route the cable within
6 m (20 ft.) of the engine network backbone.
The Garmin GPSMAP J1939 accessory cable requires
connection to a power source and proper termination. For more
information on connecting to your engine network, see the
manufacturer's engine documentation.
Pin Wire Color Description
À
Bare Shield
Á
Red Power, positive
Â
Black Power, negative
Ã
White CAN High
Ä
Blue CAN Low
HDMI
®
Video Considerations
NOTICE
To prevent corrosion due to moisture, you must use Garmin
GPSMAP accessory cables when connecting the chartplotter to
the video source or display. Do not connect a media player stick
directly into the back of the chartplotter. Using different cables or
connecting a media player stick into the back of the chartplotter
voids your warranty.
This chartplotter allows video input from HDMI video sources,
such as a Chromecast
™
device or a Blu-Ray
™
player. You can
view protected HDMI content (HDCP content) on the chartplotter
screen. HDMI video is shared across the Garmin Marine
Network, but it is not shared across the NMEA 2000 network.
HDCP content is not shared across the Garmin Marine Network.
Through the HDMI OUT port, you can duplicate the chartplotter
screen on another device, such as a television or monitor. You
cannot view HDCP content on the duplicated screen.
The Garmin GPSMAP HDMI accessory cable is 4.5 m (15 ft)
long. If you need a longer cable, you should use an active HDMI
cable only. You need an HDMI coupler to connect the two HDMI
cables.
You need a Garmin GPSMAP USB OTG adapter cable to power
a media player stick. The USB port can supply up to 2.5 W to
power a media player stick.
You must make all cable connections in a dry environment.
Item Description
À
GPSMAP 8400/8600 chartplotter
Á
Display with an HDMI In port, such as a computer or television
Â
GPSMAP HDMI cable (HDMI IN)
Ã
GPSMAP USB OTG adapter cable to power the HDMI source, if
possible (2.5 W maximum)
Ä
GPSMAP HDMI cable (HDMI OUT)
Å
HDMI source, such as a Blu-Ray player or Chromecast device
Æ
Dry environment, protected from moisture
Composite Video Considerations
This chartplotter allows video input from composite video
sources using the port labeled CVBS IN. When connecting
composite video, you should observe these considerations.
• The CVBS IN port uses a BNC connector. You can use a
BNC to RCA adapter to connect a composite-video source
with RCA connectors to the CVBS IN port.
• Video is shared across the Garmin Marine Network, but it is
not shared across the NMEA 2000 network.
Touchscreen Controls for a Connected Computer
NOTICE
To prevent corrosion due to moisture, you must use Garmin
GPSMAP accessory cables when connecting the chartplotter to
the computer. Using different cables voids your warranty.
You can connect the chartplotter to a computer to see the
computer screen and to control the computer using the
chartplotter touchscreen. To see the computer screen, you must
connect the computer to the HDMI IN port. To control the
computer using the chartplotter touchscreen, you must connect
the computer to the USB port.
The Garmin GPSMAP HDMI accessory cable is 4.5 m (15 ft)
long. If you need a longer cable, you should use an active HDMI
cable only. You need an HDMI coupler to connect the two HDMI
cables. You must make all cable connections in a dry
environment.
The Garmin GPSMAP USB accessory cable is 4.5 m (15 ft)
long. If you need a longer cable, you should use a USB hub or
USB repeater extension cable only. You should make all cable
connections in a dry environment.
6








