190-02087-10 GDL 50(R)/51(R)/52(R) Installation ManualRev. 2 Page vTABLE OF CONTENTSPARAGRAPH PAGESection 1 General Description ...........................................................................1-11.1 Introduction...................................................................................................................... 1-11.2 Equipment Description .................................................................................................... 1-11.3 Technical Specifications .................................................................................................. 1-31.4 Reference Documents ...................................................................................................... 1-5Section 2 Installation Overview.........................................................................2-12.1 Introduction...................................................................................................................... 2-12.2 Installation Materials ....................................................................................................... 2-12.3 Available Accessories...................................................................................................... 2-12.4 Installation Considerations .............................................................................................. 2-32.5 GDL 5X/5XR Installation Guidance for Best Wireless Performance ............................. 2-42.6 Cabling and Wiring.......................................................................................................... 2-52.7 Cooling Air ...................................................................................................................... 2-62.8 Configuration, and Adjustment Options .......................................................................... 2-62.9 Front Panel ....................................................................................................................... 2-72.10 Updating Software ......................................................................................................... 2-82.11 Noise .............................................................................................................................. 2-92.12 Mounting Requirements ................................................................................................ 2-9Section 3 Installation Procedure........................................................................3-13.1 Unpacking Unit................................................................................................................ 3-13.2 Wiring Harness Installation ............................................................................................. 3-13.3 Backshell Assembly......................................................................................................... 3-23.4 Coax Cable Installation.................................................................................................... 3-23.5 Equipment Mounting ....................................................................................................... 3-23.6 Continued Airworthiness ................................................................................................. 3-23.7 Antenna Installation ......................................................................................................... 3-33.8 Non-Garmin Antennas ..................................................................................................... 3-43.9 Garmin Antennas ............................................................................................................. 3-53.10 Post Installation Checkout ............................................................................................. 3-6Section 4 System Interconnects .........................................................................4-14.1 Pin Function List.............................................................................................................. 4-1Appendix A Outline and Installation Drawings .............................................A-1Appendix B Interconnect Drawings.................................................................B-1