Garmin GPSMAP 8X10 Installation Instructions Manual page 5

• You must use 28 AWG, shielded, twisted-pair wiring for
extended runs of wire. Solder all connections and seal them
with heat-shrink tubing.
• Do not connect the NMEA 0183 data wires from this device
to power ground.
• The power cable from the chartplotter and the NMEA 0183
devices must be connected to a common power ground.
• The internal NMEA 0183 ports and communication protocols
are configured on the chartplotter. See the NMEA 0183
section of the chartplotter owner's manual for more
information.
• See the chartplotter owner's manual for a list of the approved
NMEA 0183 sentences that the chartplotter supports.
NMEA 0183 Device Connections
This diagram illustrates two-way connections for both sending
and receiving data. You can also use this diagram for one-way
communication. To receive information from a NMEA 0183
device, refer to items ,
Garmin device. To transmit information to a NMEA 0183 device,
refer to items , , ,
device.
Item Description
Power source
Power cable
NMEA 0183 device
NMEA 0183 cable
Item Garmin Wire
Function
Power
Power ground
Data ground
Rx/A (In +)
Rx/B (In -)
Tx/A (Out +)
Tx/B (Out -)
If the NMEA 0183 device has only one input (receive, Rx) wire
(no A, B, +, or -), you must leave the pink wire unconnected.
If the NMEA 0183 device has only one output (transmit, Tx) wire
(no A, B, +, or -), you must connect the white/orange wire to
ground.
Lamp or Horn Connections
The device can be used with a lamp, a horn, or both, to sound or
flash an alert when the chartplotter displays a message. This is
optional, and the alarm wire is not necessary for the device to
function normally. When connecting the device to a lamp or
horn, observe these considerations.
• The alarm circuit switches to a low-voltage state when the
alarm sounds.
• The maximum current is 100 mA, and a relay is needed to
limit the current from the chartplotter to 100 mA.
, , , and when connecting the
, and when connecting the Garmin
Garmin Wire NMEA 0183
Color Device Wire
Function
Red Power
Black Power ground
Black Data ground
White/orange Tx/A (Out +)
White Tx/B (Out -)
Gray Rx/A (In +)
Pink Rx/B (In -)
• To toggle visual and audible alerts manually, you can install
single-pole, single-throw switches.
Item Description
Power source
Power cable
Horn
Lamp
NMEA 0183 cable
Relay (100 mA coil current)
Toggle switches to enable and disable lamp or horn alerts
Item Wire Color
Red
Black
Yellow
NMEA 0183 with Audio Cable Pinout
The optional NMEA 0183 with audio cable (010-12852-00)
includes bare wires and an RCA connector for an audio out
connection to a stereo, including Fusion
be purchased from garmin.com
You can connect the RCA connector to the AUX input of the
stereo. Audio received from the HDMI
output to the stereo.
The NMEA 0183 with audio cable provides one differential
NMEA 0183 input and output port.
Pin Wire Function
1 NMEA 0183 Rx/A (In +)
2 NMEA 0183 Rx/B (In -)
3 NMEA 0183 Tx/B (Out -)
4 NMEA 0183 Tx/A (Out +)
5 Ground
6 Alarm
7 Accessory on
8 Ground (shield)
9 Audio Left Channel
10 Audio Common
11 Audio Right Channel
Wire Function
Power
Ground
Alarm
stereos. This cable can
®
or your local Garmin dealer.
input to the chartplotter is
®
Wire Color
White/orange
White
Pink
Gray
Black
Yellow
Orange
Brown
White
Blue/red
Red
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