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Connecting a GSD™ 22 via Serial or NMEA 0183 Wiring
The GSD™ 22 cannot connect using a Serial or NMEA 0183 connection. The GSD 22 can only connect to a chartplotter using the Garmin Marine Network or a CANet connection.
The Garmin Marine Network is the preferred method as it is an easier installation. CANet is no longer used for communication on the current lineup of chartplotters.
For more information about installing the GSD 22, please review the Installation Manual.