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• To manually toggle visual and audible alerts, you can install
single-pole, single-throw switches.
Item Description
Power source
Power cable
Horn
Lamp
Relay (100 mA coil current)
Toggle switches to enable and disable lamp or horn alerts
Item
Wire Color
Red
Black
Yellow
HDMI Out Video Considerations
To prevent corrosion due to moisture, you must use Garmin
GPSMAP accessory cables when connecting the chartplotter to
the video display. Using different cables voids your warranty.
Through the HDMI OUT port, you can duplicate the chartplotter
screen on another device, such as a television or monitor.
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.
Item Description
GPSMAP 1222/1242 Touch chartplotter
GPSMAP HDMI cable (HDMI OUT)
Display with an HDMI In port, such as a computer or television
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.
Wire Function
Power
Ground
Alarm
NOTICE
Specifications
Dimensions (W × H × D)
Display size (W × H)
Weight
Clearance to nearest
obstruction
Compass-safe distance
Temperature range
Material
Water rating
Fuse
Input voltage
Max. power usage at 10 Vdc 36 W
Typical current draw at
12 Vdc
Max. current draw at 12 Vdc
NMEA 2000 LEN @ 9 Vdc
NMEA 2000 Draw
Memory card
Wireless frequency and
protocols
NMEA 2000 PGN Information
Transmit and Receive
PGN
Description
059392
ISO acknowledgment
059904
ISO request
060160
ISO transport protocol: Data transfer
060416
ISO transport protocol: Connection management
060928
ISO address claimed
065240
Commanded address
126208
Request group function
126996
Product information
126998
Configuration information
127237
Heading/track control
127245
Rudder
127250
Vessel heading
127258
Magnetic variance
127488
Engine parameters: Rapid update
127489
Engine parameters: Dynamic
127493
Transmission parameters: Dynamic
127505
Fluid level
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
129539
GNSS DOPs
129540
GNSS satellites in view
130060
Label
130306
Wind data
33.0 × 22.6 × 7.9 cm (13.0 × 8.9 ×
3.1 in.)
26.2 × 16.3 cm (10.3 × 6.4 in.)
12.1 in. diagonal
2.72 kg (6.0 lb.)
3
95 mm (3
/
in.)
4
65 cm (25.6 in.)
From -15° to 55°C (from 5° to 131°F)
Die-cast aluminum and polycarbonate
plastic
IEC 60529 IPX7
*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.
6 A, 125 V fast-acting
From 10 to 32 Vdc
2.4 A
3.0 A
2
75 mA max.
2 SD
card slots; 32 GB max. card size
®
2.4 GHz @ 15.26 dBm
5
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