User manual GARMIN GSD 20 INSTALLATION GUIDE

[. . . ] Information in this document is subject to change without notice. Garmin reserves the right to change or improve its products and to make changes in the content without obligation to notify any person or organization of such changes or improvements. Visit the Garmin Web site (www. garmin. com) for current updates and supplemental information concerning the use and operation of this and other Garmin products. Garmin®, DCG®, and See-Thru® are a registered trademark of Garmin Ltd. [. . . ] Proper transducer selection and installation are critical to the operation of your unit. Since mounting locations vary, see your local dealer or contact Garmin Product Support for further information. A full list of transducers can be found at www. garmin. com. Power/Data Connector LED Status Indicator Transducer Connector Mounting Holes GSD 20 Sonar Module 1 INSTALLATION INSTRUCTIONS INSTALLATION INSTRUCTIONS The GSD 20 must be properly installed according to the following instructions to get the best possible performance. To complete the installation, you need the appropriate fasteners. If you experience difficulty with the installation, contact Garmin Product Support. The module should be mounted in an out-of-the-way location that is dry and well ventilated. Avoid mounting the module where it can be submerged in liquids or exposed to extreme temperatures. Be sure to mount the module so that the LED is visible. 1. Once the location is chosen, place the unit. Be sure to allow enough clearance for attaching the cables. Using the module as a template, mark the location of the four mounting holes. If needed, additional mounting holes may be drilled in the side mounting flanges of the module. Attach the GSD 20 to the mounting location using the appropriate fasteners. Mount the transducer according to the instructions provided with the transducer. Route the cables to the mounting location of the display unit. Use the appropriate tie-wraps, fasteners, and sealant to secure the cable along the route and through any bulkhead or deck. Once the GSD 20 module has been installed, connect the power/data and transducer cables to the appropriate receptacle. Refer to the following wiring diagrams for connecting the GSD 20 to compatible Garmin units. NOTE: You can extend the wiring of the GSD 20 power/data cable up to 100' (30 m) total length. Use 22 AWG, 4-conductor shielded cable for data cable and 18 AWG for power. Transducer cable extensions are available through your Garmin dealer. To install the GSD 20 module: 2 GSD 20 Sonar Module BASIC WIRING FOR THE GARMIN GSD 20 TO A SINGLE GPSMAP 2006/2006C/2010/2010C/3005C/3006C/3010C GSD 20 Sonar Module WIRE COLOR FUSE 5A WIRE COLOR RED BLACK ORANGE WHITE/BLUE FUSE 2A GARMIN GSD 20 SOUNDER MODULE RED BLACK ORANGE WHITE/BLUE WHITE/BROWN WHITE/BROWN TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. 4. Power and ground wires require 18 AWG. [. . . ] The GSD 20 and the GPSMAP 182/182C/192C/232 turns on/off when power is applied/removed to the Red wire. Option 2: If the Red (+) wire is applied directly to a power source, install a switch between the Orange wire and ground. The GSD 20 turns on or off when ground is applied or removed to the Orange wire. BASIC WIRING FOR THE GARMIN GSD 20 TO A SINGLE GPSMAP 172/172C GSD 20 Sonar Module FUSE 5A WIRE COLOR RED RED BLACK WHITE/BLUE WHITE/BROWN FUSE 2A WIRE COLOR GARMIN GSD 20 SOUNDER MODULE BLACK BLUE BROWN ORANGE ORANGE TO TRANSDUCER BATTERY 10-35 VOLTS DC Notes: 1. Use 4-conductor, shielded wiring for runs over 30' (9. 1 m). [. . . ]