190-01879-11 GMA 245/245R Installation ManualRev. 6 Page vLIST OF FIGURESFIGURE PAGESection 1 General Description ...........................................................................1-1Section 2 Installation Overview.........................................................................2-1Figure 2-1 GMA 245R Bluetooth Transceiver Location...................................................... 2-4Figure 2-2 SD Card Slot and DIP Switch Locations ............................................................ 2-7Figure 2-3 Front Panel Configuration................................................................................... 2-9Figure 2-4 GMA 245 Unit Rack (115-00262-00)............................................................... 2-13Figure 2-5 GMA 245R w/Mounting Brackets on Front and Back ..................................... 2-14Figure 2-6 GMA 245R w/Mounting Brackets on Sides ..................................................... 2-14Section 3 Installation Procedure........................................................................3-1Figure 3-1 GMA 245R Jackscrew Backshell Assembly ...................................................... 3-4Figure 3-2 GMA 245 Shield Block Backshell Assembly..................................................... 3-5Figure 3-3 Method A.1 for Shield Termination................................................................... 3-6Figure 3-4 Insulation/Contact Clearance ............................................................................. 3-8Figure 3-5 Method A.2 (Daisy Chain) for Shield Termination ......................................... 3-10Figure 3-6 Method B.1 (Quick Term) for Shield Termination.......................................... 3-12Figure 3-7 Method B.2 (Daisy Chain-Quick Term) for Shield Termination...................... 3-13Figure 3-8 Daisy Chain between Methods A and B .......................................................... 3-14Figure 3-9 Jackscrew D-Sub Spliced Signal Wire illustration ........................................... 3-15Figure 3-10 Shield Block D-Sub Spliced Signal Wire illustration ..................................... 3-16Figure 3-11 Rear View of Rack and Connectors ................................................................ 3-17Figure 3-12 GMA 245 Audio Shield Termination (top and bottom) ................................. 3-17Figure 3-13 GMA 245R Audio Shield Termination (top and bottom)............................... 3-18Figure 3-14 Diagnostics Mode ........................................................................................... 3-21Section 4 System Interconnects .........................................................................4-1Figure 4-1 Rear View of Backplate and Connectors ............................................................ 4-1Figure 4-2 Rear Connectors J2401 & J2402, Viewed from Back of Unit............................ 4-1Section A Installation Considerations for Upgrading from a GarminGMA 240 ............................................................................................A-1Figure A-1 GMA 240 to GMA 245 Retrofit Connections................................................... A-2Appendix B Outline and Installation Drawings .............................................B-1Figure B-1 GMA 245 Outline Drawing................................................................................B-1Figure B-2 GMA 245 Installation Drawing..........................................................................B-2Figure B-3 GMA 245R Outline Drawing, End Mount Bracket Installation .......................B-3Figure B-4 GMA 245/245R Outline Drawing, Side Mount Bracket Installation.................B-4Figure B-5 GMA 245/245R Installation Drawing, End and Side Bracket Mounting ..........B-5