GC™12 MARINE CAMERA
INSTALLATION
INSTRUCTIONS
Mounting Considerations
You can mount the camera upside-down or sideways. You can
reverse the camera image to use in rearview mode. See your
chartplotter owner's manual for instructions.
You should mount the camera in a location where it is
• not an obstacle in doorways or walkways.
• not exposed to extreme temperatures.
• not exposed to gas or oil.
• not exposed to radioactivity.
• not facing into direct sunlight or a direct reflection of sunlight.
Tools Needed
• 1 A fuse or circuit breaker
• Drill and 2 mm (1/16 in.) drill bit
Mounting the Camera
1Secure the template À to the mounting location.
2Using a 2 mm (1/16 in.) drill bit, drill the pilot holes.
3Adjust the dome base Á to the correct orientation for your
desired camera tilt.
4Secure the dome base to the mounting location using the
included tapping screws Â.
5Insert the camera à into the dome base.
6Secure the set screws Ä into the dome front Å using the
included wrench.
Installation Considerations
You must connect the camera power wire to the battery through
a 1 A fuse or circuit breaker. If you do not use a fuse or circuit
breaker, the camera can malfunction.
Some Garmin® GPSMAP® chartplotters have a built-in CVBS
video encoder. Video from the camera or cameras appears on
all chartplotters on the network when plugged into a single
CVBS IN port. Go to www.garmin.com/manuals/gc12 for a list of
compatible GPSMAP chartplotters.
If you want to use more than one camera or the chartplotter
does not have a CVBS IN port, you must use an encoder.
You can add up to four cameras to one encoder and up to two
encoders to the Garmin Marine Network.
Installation Diagram
ÀGC 12 Marine Camera
Á1 A fuse or circuit breaker (not included)*
Â12 Vdc Power source
ÃBNC to BNC Coax Video Cable (not included)
ÄCompatible Garmin chartplotter
*You must connect the camera power wire to the battery through
a 1 A fuse or circuit breaker. If you omit a fuse or circuit breaker,
the camera can malfunction.
Installation With Encoder Diagram
You can add more than one camera to your network when you
use an encoder.
ÀGC 12 Marine Camera
Á1 A fuse or circuit breaker (required, not included)*
Â12 Vdc Power source
ÃBNC to BNC Coax Video Cable (not included)
ÄNetwork cable
ÅPower-over-Ethernet isolation coupler (GPN 010-10580-10)
ÆGarmin Marine Network cable
ÇAxis® Q7424 Encoder (optional/not included)
ÈCompatible Garmin chartplotter
*You must connect the camera power wire to the battery through
a 1 A fuse or circuit breaker. If you omit a fuse or circuit breaker,
the camera can malfunction.
Troubleshooting
Video Does Not Appear on the Chartplotter Screen
• Verify all cables are firmly connected.
• Verify the video cable is connected to the camera video
output port.
Image on the Chartplotter Screen is Dim or Dark
• Verify the lens is clean. If necessary, wipe the lens with a
soft, clean cloth.
• If the camera is exposed to too much direct light, change the
camera position or location.
August 2018
190-01087-01_0A