Limited Warranty This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will at its sole option repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost.
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To get successful results from your GSD 21, take time to read through this installation guide. If any items are missing, please contact your Garmin dealer immediately.
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6. Refer to the following CANet and serial wiring diagrams for connecting the GSD 21 to compatible Garmin units. NOTE: You can extend the CANet wiring of the GSD 21 power/data cable up to 80 ft (24.38 m) total length using the CANet Connections Kit.
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When the unit is installed, it switches on when the display unit is powered on (or the GSD remote power line is pulled low, with power applied). The two-color (Green/Red) LED on the GSD 21 indicates the current operational status of the module. Codes are:...
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1,500 foot max depth* dual frequency, 900 foot max depth* dual beam * Depth capacity is dependent on water salinity, bottom type, and other water conditions. Data Output Source: Proprietary Garmin data format over CANet or Serial PECIFICATIONS GSD 21 Sonar Module...