LGC-12S
GPS Module
Installation Instructions
The LGC-12S GPS module contains a12 parallel channel GPS receiver .
This unit attaches directly to select Lowrance® products capable of displaying GPS position information. P ower f or the LGC-12S is supplied from
that equipment. It has a g ray connector on the end of the cable.
The GPS module can be mounted on any flat surface, provided there is
access behind the mounting surface for the scre ws. A pole mount adapter
lets you mount the antenna on a pole or swiv el mount that uses standard
marine 1" - 14 threads.
The LGC-12 has a short cable with an gray connector on the end. A 25foot extension cable is supplied with this module with a male connector
on one end and a female connector on the other. Make certain to install
the cable with the female connector at the antenna.
GPS MODULE INST ALLATION
Surface Mount
The GPS module can be easily installed on any flat surface that is at least
90 mm (3 1/2”) wide. Make certain that a clear view of the sky is availab le
at the selected location. Since the GPS signals tr avel “line-of-sight”, nearly
anything blocking the antenna can potentially obstruct the unit from finding a satellite. Do not mount in line with a radar antenna. Radar radiates
high energy that can interfere with the GPS signal.
Once you’ve determined the mounting location, use the template on this
page to drill the holes for the screws. The screws, supplied with this unit,
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are 4mm x 30mm. (about 1 1/8” long). Drill 4.75 mm (3/16”) holes for the
mounting screws. If you're installing the LGC-12S, and need to route the
cable through the mounting surface, y ou’ll need to drill a 25 mm (1”) hole
for the cable's connector. There is a notch in the antenna housing that
allows the cable to pass through to the outside, if desired, instead of routing it through the mounting surface.
After drilling the holes, pass the o-ring over the cable and press it into the
groove on the bottom of the antenna housing. No w attach the antenna to
the mounting surface, using 4mm screws and the supplied loc k washers.
Route the cable and the GPS module installation is finished.
4.75MM (3/16”)
4 PLACES
GPS MODULE TEMPLATE
3
25MM (1”)
(If Necessary)
Pole Mount
The GPS module attaches to the pole mount
adapter with the supplied 4 mm screws. You
can route the cable through the slot in the
side of the module and down the side of the
pole. Alternatively, you can pass it down
through the pole mount adapter and run the
cable inside the pole. The 1"-14 threads on
the pole mount adapter accept a standard
marine antenna mount.
POLE MOUNT
ADAPTER
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MMC Interface
The MMC Interface lets you transf er maps and other data from the computer to the MMC. It connects to the PC's parallel port to transfer data and
to the keyboard for po w er.
Connections
First, turn the computer off.
The keyboard "Y" cable on the MMC interf ace has an adapter plug on one
end. If your keyboard uses the small connectors, attach the keyboard to
the "Y" adapter cable and plug the other end of the "Y" cable into the
keyboard connector on the PC as shown belo w.
KEYBOARD CONNECTOR
ON PC
KEYBOARD
CABLE
TO MMC
INTERFACE
If your keyboard uses the large connectors , unplug the adapter from the
"Y" cable, turn it over and plug it into the small connector on the other end
of the "Y" cable. Plug the k eyboard into one end of the "Y" cable and plug
the other end of the "Y" cable into the PC.
KEYBOARD CONNECTOR
ADAPTER
MMC KEYBOARD
ADAPTER CABLE
Plug the large, 25-pin connector into the parallel port of your PC.
The MMC interface is now ready f or use.
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