9GPSMAP 3000 Series Installation InstructionsGarmin Marine NetworkThe Garmin Marine Network is a waterproof ethernet-based system that allows Garmin chartplotters to communicate with Garmin sensorsand other Garmin chartplotters over the network. Waterproof RJ-45 connections allow for simple installation and high-speed connectivity. Fora simple installation with one Garmin chartplotter and one Garmin sensor, the two devices can be directly connected with a Garmin MarineNetwork cable.NotE: Power connections for network components are not shown in the following illustrations. All components of the Garmin Marine Network mustbe connected to power, because they do not receive power through the network connections.GarminGPSMAP 3000Series ChartplotterGPS 17xGarminGPSMAP3000 SeriesChartplotterSimple Garmin Marine Network With Two ChartplottersIf more than two GPSMAP 3000 series chartplotter are installed, use a Garmin Marine Network Port Expander (GMS 10) to expand thenetwork. If two or more GPSMAP 3000 series chartplotters are installed and networked, only one GPS 17x antenna needs to be installed. Youcan add up to five total devices to the Network Port Expander. If more than five are needed, you can add more Network Port Expanders to thenetwork. This network is NOT compatible with PC networks. Do Not attach PC devices to the Garmin Marine Network. Some examplesof the Garmin Marine Network are included below. Refer to the individual installation instructions for the individual sensors. AdditionalGarmin network cables are available from your Garmin dealer or direct from Garmin.You can also include GPSMAP 4000/5000 series chartplotters in your Garmin Marine Network. Refer to the GPSMAP 4000/5000 SeriesInstallation Instructions for more information.xxxxxxxx xxxxxxxxxxxxxxxxxxxGarmin GMS 10Marine Network Port ExpanderGarmin GMR 18Marine Radar Garmin GDl 30AMarine Weather/AudioSatellite RecieiverGarminGPSMAP 3000Series ChartplotterGarminGPSMAP3000 SeriesChartplotterGPS 17xGarmin GSD 21Sounder Module To transducerExpanded Garmin Marine Network With a GMS 10 and Additional DevicesSerial cableEthernet cableTransducer cablexxxxxxxxxSerial cableEthernet cableTransducer cablexxxxxxxxx