Installation Instructions
Page 3
... vary, see your local dealer or contact Garmin Product Support for choosing the Garmin GSD 21. Mounting Holes Power/Data Connector LED Status Indicator Transducer Connector GSD 21 Sonar Module 1 The transducer transmits sound waves toward the bottom in other Garmin sounders, including Color Depth Control Gain (DCG...critical to include powerful features found at a given depth. The GSD 21 is a CANetTM compatible, remote sounder module designed to the operation of your unit. When used with compatible Garmin chartplotters, it provides full-featured depth sounder functions. To get ...
... vary, see your local dealer or contact Garmin Product Support for choosing the Garmin GSD 21. Mounting Holes Power/Data Connector LED Status Indicator Transducer Connector GSD 21 Sonar Module 1 The transducer transmits sound waves toward the bottom in other Garmin sounders, including Color Depth Control Gain (DCG...critical to include powerful features found at a given depth. The GSD 21 is a CANetTM compatible, remote sounder module designed to the operation of your unit. When used with compatible Garmin chartplotters, it provides full-featured depth sounder functions. To get ...
Installation Instructions
Page 4
... allow enough clearance for connecting the GSD 21 to compatible Garmin units. Transducer cable extensions are affected if a serial installation is chosen, place the unit. Be sure to mount the module so that is enough available amperage to run the units for power. Doing so might damage the GSD 21. 2 GSD 21 Sonar Module The module should be submerged...
... allow enough clearance for connecting the GSD 21 to compatible Garmin units. Transducer cable extensions are affected if a serial installation is chosen, place the unit. Be sure to mount the module so that is enough available amperage to run the units for power. Doing so might damage the GSD 21. 2 GSD 21 Sonar Module The module should be submerged...
Installation Instructions
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... to the sonar or display units is fully depressed into the connector. The maximum length of the GSD 21 power/data cable up to the chartplotter's installation instructions for wiring the GPS 17 sensor and other devices...GSD 21 Sonar Module To Sounder Green White CANet Wiring for the Garmin GSD 21 CANet Terminator See the CANet Terminator Connection Diagram Below CANet Terminator GREEN WHITE ORANGE BLACK DRAIN 3 wire connector 3 wire connector CANet Extension Cable BATTERY 10-35 VOLTS DC GREEN WHITE ORANGE BLACK BLACK RED FUSE 2A GARMIN GSD 21 SOUNDER MODULE � TO TRANSDUCER...
... to the sonar or display units is fully depressed into the connector. The maximum length of the GSD 21 power/data cable up to the chartplotter's installation instructions for wiring the GPS 17 sensor and other devices...GSD 21 Sonar Module To Sounder Green White CANet Wiring for the Garmin GSD 21 CANet Terminator See the CANet Terminator Connection Diagram Below CANet Terminator GREEN WHITE ORANGE BLACK DRAIN 3 wire connector 3 wire connector CANet Extension Cable BATTERY 10-35 VOLTS DC GREEN WHITE ORANGE BLACK BLACK RED FUSE 2A GARMIN GSD 21 SOUNDER MODULE � TO TRANSDUCER...
Installation Instructions
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... ORANGE WHITE/BLUE WHITE/BROWN GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. Ground the drain wire at the display unit. Refer to the chartplotter's specific Installation Instructions for the Garmin GSD 21 to 100 ft (30 m) total length. INSTALLATION INSTRUCTIONS 4 Serial Wiring for wiring the GPS 17 sensor and other devices. 4. Use...
... ORANGE WHITE/BLUE WHITE/BROWN GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. Ground the drain wire at the display unit. Refer to the chartplotter's specific Installation Instructions for the Garmin GSD 21 to 100 ft (30 m) total length. INSTALLATION INSTRUCTIONS 4 Serial Wiring for wiring the GPS 17 sensor and other devices. 4. Use...
Installation Instructions
Page 7
...sonar unit. 3. INSTALLATION INSTRUCTIONS 5 GSD 21 Sonar Module Serial Wiring for wiring the GPS 17 sensor and other devices. 4. You can extend the serial/power wiring of pliers and make sure the button is fully depressed into the connector. Refer to the chartplotter's specific Installation Instructions for the Garmin GSD 21...COLOR RED BLACK ORANGE WHITE/BLUE WHITE/BROWN WIRE COLOR RED FUSE 2 A BLACK ORANGE WHITE/BLUE WHITE/BROWN GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-33 VOLTS DC Notes: 1. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable...
...sonar unit. 3. INSTALLATION INSTRUCTIONS 5 GSD 21 Sonar Module Serial Wiring for wiring the GPS 17 sensor and other devices. 4. You can extend the serial/power wiring of pliers and make sure the button is fully depressed into the connector. Refer to the chartplotter's specific Installation Instructions for the Garmin GSD 21...COLOR RED BLACK ORANGE WHITE/BLUE WHITE/BROWN WIRE COLOR RED FUSE 2 A BLACK ORANGE WHITE/BLUE WHITE/BROWN GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-33 VOLTS DC Notes: 1. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable...
Installation Instructions
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INSTALLATION INSTRUCTIONS ON OFF 6 Serial Wiring for the Garmin GSD 21 to ground. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable for data connections and 18 AWG for the GSD 21 to power on or off when power is switched on the Red (+) wire, connect the Orange wire to ... DC SEE NOTE 3 OPTION 2 GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER Notes: 1. Do not ground the drain wire on or off when ground is applied or removed from the Orange wire. 4. The GSD 21 and the GPSMAP 276C/296/376C/396 turn on the sonar unit. 3. The GSD 21 turns on . Ground the drain ...
INSTALLATION INSTRUCTIONS ON OFF 6 Serial Wiring for the Garmin GSD 21 to ground. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable for data connections and 18 AWG for the GSD 21 to power on or off when power is switched on the Red (+) wire, connect the Orange wire to ... DC SEE NOTE 3 OPTION 2 GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER Notes: 1. Do not ground the drain wire on or off when ground is applied or removed from the Orange wire. 4. The GSD 21 and the GPSMAP 276C/296/376C/396 turn on the sonar unit. 3. The GSD 21 turns on . Ground the drain ...
Installation Instructions
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...RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE BATTERY 10-33 VOLTS DC SEE NOTE 3 OPTION 2 GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER Notes: 1. The Orange wire must be pulled low (-) in order for the GSD 21 to power on the Red (+) wire, connect the Orange wire to a circuit that is switched on ...or off when ground is applied or removed from the Orange wire. 4. The GSD 21 and the GPSMAP 182/182C/192C/232/292/392/492 turns on the sonar unit. 3. GSD 21 Sonar Module Serial Wiring for power. 2. The GSD 21 turns on or off when power is applied or removed from the Red wire....
...RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE BATTERY 10-33 VOLTS DC SEE NOTE 3 OPTION 2 GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER Notes: 1. The Orange wire must be pulled low (-) in order for the GSD 21 to power on the Red (+) wire, connect the Orange wire to a circuit that is switched on ...or off when ground is applied or removed from the Orange wire. 4. The GSD 21 and the GPSMAP 182/182C/192C/232/292/392/492 turns on the sonar unit. 3. GSD 21 Sonar Module Serial Wiring for power. 2. The GSD 21 turns on or off when power is applied or removed from the Red wire....
Installation Instructions
Page 10
... RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable for data connections and 18 AWG for wiring the GPS 17 sensor and other devices. 4. GSD 21 Sonar Module You can extend the serial/power wiring...
... RED FUSE 2A BLACK WHITE/BLUE WHITE/BROWN ORANGE GARMIN GSD 21 SOUNDER MODULE TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. Use the CANet Extension Cable or 22 AWG, 4-conductor shielded cable for data connections and 18 AWG for wiring the GPS 17 sensor and other devices. 4. GSD 21 Sonar Module You can extend the serial/power wiring...