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Installation Procedure

GDL 69/69A Installation Manual Page 2-1

190-00355-02 Revision F

2 INSTALLATION

2.1 Introduction

This section provides hardware equipment information for installing the GDL 69/69A and optional GRT

10, cabling for the XM antenna (GA 37, GA 55, GA 55A, or GA 57), and related hardware. Installation

of the GDL 69/69A and GRT 10 should follow the aircraft TC or STC requirements. For interconnects

with the GDU 104x, MX20 MFD, GMX 200 MFD, 400W/500W series or 400/500 series refer to

Appendix D of this manual. For installation information on the GDU 104x, MX20 MFD, GMX 200

MFD, 400W/500W series or 400/500 series, refer to their installation manuals.

Installation of the XM antennas is covered under separate Garmin GA Antenna AML STC number

SA01695SE.

2.2 Pre-Installation Information

Always follow acceptable avionics installation practices per FAA Advisory Circulars (AC) 43.13-1B,

43.13-2A, or later FAA approved revisions of these documents.

Follow the installation procedure in this manual as it is presented for a successful installation. Read the

entire manual before beginning the procedure. Prior to installation, consider the structural integrity of the

GDL 69/69A and GRT 10 installation as defined in AC 43.13-2A, Chapter 1 and evaluate the necessity

for audio suppression inputs in accordance with the GDL 69A Audio Limitations in Section 6. Perform

the post installation checkout before closing the work area in case problems occur.

Complete an electrical load analysis in accordance with AC 43.13-1B, Chapter 11, on the aircraft prior to

starting modification to ensure aircraft has the ability to carry the GDL 69/69A and GRT 10 load. Refer to

Section 2.8 for the power consumption of the GDL 69/69A and the GRT 10. Document the results of the

electrical load analysis on FAA Form 337.

2.3 Installation Materials

 Configurations Available

The GDL 69, GDL 69A, and GRT 10/GRC 10 wireless remote system can be ordered in different kits,

each of which may contain components listed in the following table.

Table 2-1. GDL 69/69A Kit Contents

Description Part Number

GDL 69 XM Weather Data Receiver 011-00986-00

GDL 69A XM Weather/Audio Data Receiver 011-00987-00

Back Plate Assembly 011-00796-35

Remote Mount Rack GDL 69 115-00658-00

Connector Kit Assembly 011-00997-00

Configuration Module Assembly 011-00979-00

GA 37 XM and GPS Antenna 013-00245-00

GA 55 XM Antenna 011-01033-00

GA 55A XM Antenna 011-01153-00

GA 57 XM and GPS Antenna (Not recommended for new

installations)

011-01032-00

Rack Nut Plate, 2 POS 011-00915-00

Modular Rack 115-00411-00

Summary of content (28 pages)

PAGE 1
Installation Procedure 2 INSTALLATION 2.1 Introduction This section provides hardware equipment information for installing the GDL 69/69A and optional GRT 10, cabling for the XM antenna (GA 37, GA 55, GA 55A, or GA 57), and related hardware. Installation of the GDL 69/69A and GRT 10 should follow the aircraft TC or STC requirements. For interconnects with the GDU 104x, MX20 MFD, GMX 200 MFD, 400W/500W series or 400/500 series refer to Appendix D of this manual.
PAGE 2
Installation Procedure Table 2-2. GRT 10 Transceiver Kit Contents Description GRT 10 (Wireless Transceiver) Connector Kit Part Number 011-01557-00 011-01556-00 Table 2-3.
PAGE 3
Installation Procedure 2.4 Equipment Mounting Rack Location and Installation The GDL 69/69A and optional GRT 10 may be mounted in a pressurized or unpressurized location, neither unit requires forced-air cooling. When mounting, avoid locating the equipment near sources that produce high levels of heat. The GDL 69/69A has two mounting rack options available, the remote rack and the modular rack for use with the G1000 system. Figure 2-1.
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Installation Procedure BACK PLATE ASSEMBLY P/N: 011-00796-35 CONNECTOR KIT ASSEMBLY P/N: 011-00997-00 GDL 69 P/N: 011-00986-00 GDL 69A P/N: 011-00987-00 GDL 69 REMOTE MOUNT RACK P/N: 115-00658-00 Figure 2-2. GDL 69/69A Remote Mount Rack G1000 Modular Rack The G1000 modular rack is used to install the GDL 69/69A in the standard G1000 integrated avionics system rack. This modular rack may be mounted behind the instrument panel or in the avionics bay.
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Installation Procedure GRT 10 Mounting The optional GRT 10 transceiver is mounted using four #6 pan head screws (MS35206, AN526, or equivalent) onto a solid surface. Install the GRT 10 in accordance with AC43.13-2A Chapter 2 Radio Installations. Because the weight of the GRT 10 is only 0.27 lbs, the impact of the weight to the surrounding structure is negligible and no structural validation procedures are required.
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Installation Procedure 125-00097-00 1 1 212-00022-00 330-00053-02 1 PART OF 330-00053-02 011-00950-04 330-00185-78 125-00059-04 211-63207-10 8 PLCS 211-63234-10 3 PLCS 2 211-63234-12 2 PLCS 3 3 1 1 3 115-00411-00 NOTES: 1. PART OF 011-00796-35 BACK PLATE ASSEMBLY 2. PART OF 011-00915-00 NUT PLATE KIT 3. PART OF 011-00997-00 CONNECTOR KIT 4. APPLY THREAD LOCKING COMPOUND TO ALL THREADED FASTENERS.
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Installation Procedure 2.5 Cabling and Wiring Wiring should be installed in accordance with AC 43.13-1B Chapter 11.
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Installation Procedure Table 2-5. Recommended Crimp Tools 20-24 AWG Wire Gauge Military P/N Positronic ITT Cannon AMP Daniels Astro Hand Crimping Tool M22520/2-01 9507 995-0001-584 601966-1 AFM8 615717 Positioner M22520/2-09 9502-3 995-0001-739 601966-6 K42 615725 Insertion/ Extraction Tool M81969/1-04 M81969/1-04 N/A 91067-1 M81969/1-04 M81969/1-04 NOTE Insertion/extraction tools from ITT Cannon are all plastic; others are plastic with metal tip.
PAGE 9
Installation Procedure Table 2-6. GDL 69/69A Connector Assembly Item Number (Reference Figure 2-6) 1 2 3 4 5 6 7 8 9 Description Qty Backshell, with Config 50/78 Pin PCB Assembly, Configuration Module Connector, High Density, 78 Pin Wire Harness, Backshell Ground Clamp, Backshell, 62/78 Pin Cover, Backshell, 50/78 Pin Screw, 4-40 x .187 FLHP100, Stainless Steel Screw, 4-40 x .375, Phillips, Stainless Steel Screw, 4-40 x .
PAGE 10
Installation Procedure 2.5.2.2 Configuration Module Installation for GDL 69/69A The GDL 69/69A connector kit includes one Garmin backshell assembly. The backshell assembly houses the configuration module. Garmin’s backshell also gives the installer the ability to easily terminate shield grounds at the backshell housing using the Spider grounding kit. Refer to Figure 2-7 for details and item numbers referenced below. 1. Crimp pins (4) onto each wire of the four-conductor wire harness (3).
PAGE 11
Installation Procedure 2.5.2.3 Spider Grounding Installation for GDL 69/69A The Spider Grounding Kit, part of the connector kit, allows shielded cables that go to a backshell to be terminated to the backshell. Twenty AWG #24 wires are available to splice with the cable shields. The wires all terminate to a terminal that is fastened to the backshell. A single AWG #16 wire provides ground reference to the terminal, thereby grounding all Spider leads to the aircraft.
PAGE 12
Installation Procedure 2.5.2.5 Spider and Connector Assembly Procedure 3x 11 10 6 1 7 2x 8 2 2x 5 4 24 AWG 24” 3 9 TO GROUND (AIRFRAME OR TAB ON RACK) 16 AWG Figure 2-8. Spider Installation Drawing 1. At one end of the shielded cable (7), strip back 2.0” to 3.5” of jacket while retaining the shield. Trim away enough to leave 0.5” of shield exposed. 2. Strip 1/8” of insulation from one of the AWG #24 wires (4) on the Spider. 3.
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Installation Procedure WARNING Placing the strain relief grooved side across the cable bundle may cause damage to wires. 9. Attach the Spider terminal (2) to the backshell (1) by inserting the two screws (5) into the tapped holes on the backshell (1). 10. Attach a ring terminal (9) to the AWG #16 wire (3) length 24” and terminate to ground. The ground connection can be made using either the closest aircraft ground or with tabs on racks.
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Installation Procedure GRT 10 Backshell Assembly and D-sub Connector 2.5.3.1 GRT 10 Connector Assembly 1. Backshell Cast Housing: Provides a mounting point for all other connector accessories. 2. D-sub Connector: Installation details provided in Section 2.4.4. 3. Shield Block Ground Kit: Allows shield grounds to be made to the backshell housing. Installation details provided in Section 2.5.3.3. 4. Strain Relief Tab: Provides strength and support to wiring bundles. 5.
PAGE 15
Installation Procedure 2.5.3.2 D-Sub Connector and Mounting Hardware Table 2-10. D-Sub Connector and Hardware Item 9-Pin Housing (Female) Spring-loaded Slidelock Screw Description D-Sub, Standard Density, Mil Crimp, 9 ckt D-Sub, Slide Lock Kit, 9/15 Pin Screw, 4-40 x .375, PHP, SS/P, Nylon Garmin P/N Notes 330-00383-09 330-90006-00 211-60234-10 [1], [2] [1] [1] [1] Supplied as part of the GRT 10 Connector Kit P/N 011-01556-00.
PAGE 16
Installation Procedure 2.5.3.3 Shield Block Assembly Procedure The parts for the connector and backshell assembly for GRT 10 installations are listed in Table 2-9 and shown in Figure 2-9. Figure 2-9. Typical Shield Block Install onto Backshell Connector Assembly Page 2-16 Rev.
PAGE 17
Installation Procedure 1. Attach the Shield Block (2) to the backshell (1) by inserting the flathead screws (3) through the holes on the Shield Block and threading into the tapped holes on the backshell (1). (See Figure 2-9). Figure 2-10. Shielded Cable Preparation 2. At the end of the shielded cable (4), strip back a 2” maximum length of the jacket to expose the braid. Remove this exposed braid. Carefully score the jacket 1/4” to 5/16” from the end and remove the jacket to leave the braid exposed.
PAGE 18
Installation Procedure 8. Place the smooth side of the backshell strain relief (13) across the cable bundle and secure using the three screws (14). WARNING Placing the grooved side of the strain relief across the cable bundle may damage wires. 9. Attach the cover (15) to the backshell (1) using two screws (16). Audio Suppression XM Audio Entertainment to crew locations may require audio suppression to comply with the STC Limitations.
PAGE 19
Installation Procedure 2.6 XM Antenna For use with the GDL 69/69A, the GA 37, GA 55, GA 55A, and GA 57 antennas are an XM Satellite Radio antenna operating within a frequency range of 2332-2345 MHz for general aviation. NOTE Depending on specific installations, the installer may want to use a different make/model of XM Satellite Radio antenna. (An alternate antenna may be used providing it meets the minimum requirements shown in Table 1-10).
PAGE 20
Installation Procedure XM Antenna Location As with any antenna installation, keep the following points in mind: 1. The XM Satellite signal is a line-of-sight signal. Locating antennas too close to obstructions such as the vertical stabilizer will limit the reception of the satellite signal. 2. Maintain about three feet from heater, ignition, autopilot, and other control surface actuators and motors.
PAGE 21
Installation Procedure XM Radio Antenna to Receiver Signal Requirements The XM Radio Receiver used in the GDL 69/69A has a system signal requirement of 20dB +/- 1dB gain from the input of the antenna to the input of the XM receiver internal to the GDL 69/69A.
PAGE 22
Installation Procedure Table 2-11. XM Gain/Loss Component Calculation Antenna Gain (1) + Cable Loss (2) (3) - GDL 69/69A Gain/Loss (4) +6dB > x > -4dB +/- Total Gain Antenna/Receiver = 20 dB Note: (1) Garmin GA 37, GA 55, GA 55A, GA 57 XM antenna typical gain 25 dB. For antenna gain for other antennas, see manufacturer’s specifications. (2) If 12-16ft of RG-400/U cable is used, a value of 4.5dB can be used. See Section 2.6.4.1 for explanation of calculation.
PAGE 23
Installation Procedure 2.6.4.2 Determining GDL 69/69A Gain/Loss Component Value The GDL 69/69A has a zero to 10dB variable attenuator that is used to balance the gain/loss component between its RF input and internal XM Receiver. The gain/loss components can be adjusted between +6dB and -4dB to balance the Antenna input to XM receiver 20dB gain requirement as specified for the XM system. The Gain/Loss component is factory preset with a default value of -0.5 dB.
PAGE 24
Installation Procedure 2.7 Weight and Balance Weight and balance computation is required after the installation of the GDL 69/69A and optional GRT 10. Follow the guidelines as established in AC 43.13-1B, Chapter 10, Section 2. Make appropriate entries in the equipment list indicating items added, removed, or relocated along with the date accomplished. Include your name and certificate number in the aircraft records.
PAGE 25
Installation Procedure NOTE Circuits should be protected in accordance with guidelines in AC 43.13-1B, chapter 11, Section 2, Paragraph 429. Figure 2-13. TNC Connector Installation 2.9 Cooling Air The GDL 69/69A and optional GRT 10 do not require cooling air and do not generate an excessive amount of heat during typical operations; however the thermal characteristics of the installation should always be assessed.
PAGE 26
Installation Procedure 2.10 Installing/Inserting Unit For final installation and assembly, refer to the outline and installation drawings shown in Figure 2-2 or Figure 2-5 of this manual. The two installation configurations available are the G1000 modular rack or remote mount. For both configurations, insert the GDL 69/69A into the rack, noting proper orientation as shown on the installation drawing in Figure 2-2 or Figure 2-5.
PAGE 27
Installation Procedure NOTE When inserting the GDL 69/69A into the Remote Mount Rack, it may be possible for the Pivot Pin (2) to fit between the unit and the mount rack without going into the slot of the Locking Plate (3). If the Cam Head (2) does not seat in the slot of the Locking Plate (3), the unit will not firmly engage with the mount rack and the unit could come loose from the rack. 1. With the unit firmly engaged with the mount rack, lower the Locking Lever Handle (1).
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Installation Procedure This Page Intentionally Left Blank Page 2-28 Rev.