Garmin GTX 32 Installation Manual - Page 16

2.2.2 Additional Equipment Required The following installation accessories are required but not provided: • Cables - The installer will supply all system cables including circuit breakers. Cable requirements and fabrication is detailed in Section 3 of this manual. • Hardware - #6-32 x 100° Flathead SS Screw [(MS24693, AN507R or other approved fastener) (4 ea.)] for horizontal mounting. • Hardware - #8-32 x 100° Panhead Machine Screw [(MS35206, AN526 or other approved fastener) (4 ea.).] for vertical mounting of the remote stand-alone rack • Encoding Altitude Digitizer - For GNS 480 (CNX80) installation. Use encoding altimeter manufacturer's instructions. The Garmin GAE 43 (Garmin P/N 013-00066-00) can provide altitude data in either serial or parallel gray code format. 2.3 Installation Considerations When installed as part of a Garmin Integrated Flight Deck system, the GTX 32 interfaces with GIA 63/GIA 63W units. Optional available discrete line interfaces are shown in Section 4.4 Discrete Inputs/Outputs. In other system installations, the GTX 32 can interface with equipment including altimeters and Air Data Computer (ADC). RS-232 provides a serial communication path between interfacing equipment. Fabrication of a wiring harness is required. Optional available discrete line interfaces are described in Section 4.4 Discrete Inputs/Outputs, and shown in the Interconnect Drawings provided in Appendix C. 2.3.1 Preservation of Previous Systems It is the installer's responsibility to preserve the essential characteristic of the aircraft being modified with this equipment to be in accordance with the aircraft manufacturer's original design. This includes the preservation of multiple power buses, which reduces the probability of interrupting power to essential instruments and avionics. Page 2-2 Revision F GTX 32 Installation Manual 190-00303-60