Garmin 01179, 01178 Users Manual

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. 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

OR

GA 57 XM and GPS Antenna (Not recommended for new
installations)

Rack Nut Plate, 2 POS 011-00915-00

Modular Rack 115-00411-00

011-01032-00

GDL 69/69A Installation Manual Page 2-1
190-00355-02 Revision F

Installation Procedure

Table 2-2. GRT 10 Transceiver Kit Contents

Description Part Number

GRT 10 (Wireless Transceiver) 011-01557-00

Connector Kit 011-01556-00

Table 2-3. GRC 10 Remote Control Kit Contents

Description Part Number

GRC 10 (Wireless Remote Control) 011-01558-00

Two AA Batteries 360-00004-00

GRC 10 User’s Guide 190-00355-11

 Equipment Required But Not Supplied

Hardware for the GDL 69/69A:

 Wire: MIL-W-22759/16 or equivalent

 Shielded Wire: MIL-C-27500 or equivalent

Hardware for Remote Mount Rack:

 Vertical Mount: Four #8-32 Pan Head Screws (MS35206, AN526 or equivalent)

 Horizontal Mount: Four #6-32 x 100° Counter-Sunk Flat Head Screw (MS24693, AN507R or

equivalent)

 Circuit Breaker: Appropriate for selected wire size

Hardware for GRT 10 Transceiver:

 Four #6-32 Pan Head Screws (MS35206, AN526 or equivalent)

Page 2-2 GDL 69/69A Installation Manual
Rev. F 190-00355-02

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. Suggested Mounting Locations for Remote Rack

 Remote Mount Rack

The remote mount rack can be installed in a variety of locations, such as the electronics bay, behind the
instrument panel, under the seat or behind the rear baggage area. Leave sufficient clearance between the
GDL 69/69A and any obstruction. Install the rack in accordance with AC43.13-2A Chapter 2 Radio
Installations. The remote mount rack should be mounted to a surface known to have sufficient structural
integrity to withstand additional inertial forces imposed by a 1.86 pound unit (1.72 lbs. for GDL 69). If it
is necessary to build a shelf or bracket to mount the GDL 69/69A rack or if is not certain that the chosen
location is of sufficient structural integrity, refer to Appendix C. Refer to Figure 1-4 for the GDL 69/69A
remote mount rack dimensions. The rack can be mounted vertically using four 8-32 pan head screws
(MS35206, AN526 or equivalent.) It can also be mounted horizontally using four 6-32 100° counter-sunk
flathead screws (MS24693, AN507R or equivalent.) Ensure that the rack has a ground path to the
airframe by having at least one mounting screw in contact with the airframe to minimize radiated
electromagnetic interference (EMI).

GDL 69/69A Installation Manual Page 2-3
190-00355-02 Rev. F

Installation Procedure

GDL 69
P/N: 011-00986-00
GDL 69A
P/N: 011-00987-00

BACK PLATE ASSEMBLY
P/N: 011-00796-35
CONNECTOR KIT ASSEMBLY
P/N: 011-00997-00

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. Refer
to Figure 1-5 for the GDL 69/69A G1000 modular rack dimensions. This STC covers the installation of
the GDL 69/69A modular rack into the installed G1000 integrated avionics system rack, but does not
cover the installation of the G1000 integrated avionics system rack.

Page 2-4 GDL 69/69A Installation Manual
Rev. F 190-00355-02

Installation Procedure

GRT 10

V

 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. If the GDL 69A
is mounted behind a metal bulkhead, the GRT 10 should be mounted inside the cabin to get better signal
strength. For optimal performance, the end of the GRT 10 opposite the 9-pin D-sub should face the cabin.

CONNECTOR KIT ASSEMBLY
P/N: 011-01556-00

P/N: 011-01557-00

Figure 2-3. GRT 10 Mounting

 Remote Switches

Installation of rocker switches should be made on a flat surface and located at a convenient location
within the cabin. Each rocker switch installed must be properly marked of its function. Use of rocker
switches vs. toggle switches will prevent the possibility of raising and lowering the volume at the same
time or raising and lowering the channels at the same time. Wire used for discrete switches should be 24
AWG (MIL Spec M22759) and should be routed as appropriate, avoiding kinking or sharp bends. Figure
2-4 shows typical rocker switches.

Channel

olume Mute

Figure 2-4. Typical Rocker Switches

NOTE

Remote switches can be installed even if a GRT 10 is installed.

GDL 69/69A Installation Manual Page 2-5
190-00355-02 Rev. F

Installation Procedure

1

1

330-00053-02

125-00097-00

212-00022-00

1

1

PART OF 330-00053-02

211-63207-10
8 PLCS

2

211-63234-10
3 PLCS

115-00657-00
2 PLCS

MAY ALTERNATELY USE P/N 115-00511-00

(PART OF KIT 011-01148-00)

2

115-00411-00

211-63234-12
2 PLCS

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.

3

Figure 2-5. Modular Rack for the G1000

125-00059-04

1

330-00185-78

3

011-00950-04

3

Page 2-6 GDL 69/69A Installation Manual
Rev. F 190-00355-02

Installation Procedure

2.5 Cabling and Wiring

Wiring should be installed in accordance with AC 43.13-1B Chapter 11. When wire separation cannot be
achieved, the following issues should be addressed:

 The cable harness should not be located near flight control cables and control, high electrical

capacity lines or fuel lines

 The cable harness should be located in a protected area of the aircraft

 Do not route cable near high-energy sources

Refer to the interconnection diagrams in Appendix D for the appropriate wiring. Once the cable
assemblies have been made, attach the cable connector to the rear of the rack. Route the wiring bundle as
appropriate. Avoid sharp bends.

For the GDL 69/69A use 22 or 24 AWG wire for all connections except for power. Use 22 AWG for
power/ground. For the GRT 10 use 22 AWG wire for all connections including power/ground.

After the GDL 69/69A cable assemblies are made assemble the backshell as shown in Figure 2-7. Then
install the backshell connector to the rear plate using the screws provided in the connector kit. After the
rack is installed, assemble the rear plate into the rack.

 Wiring Harness

Allow adequate space for installation of cables and connectors. The installer supplies and fabricates all of
the cables. Except for the antenna connection, all electrical connections are made through a 78-pin D-sub
(GDL 69/69A) and 9-pin D-sub (GRT 10) connectors provided by Garmin. Construct the wiring harness
according to the information contained in this and the following sections. Cable lengths will vary
depending upon installation. Strip all wires going to the D-sub connectors 1/8”. Insert the wire into the
pin and crimp with one of the recommended (or equivalent) crimping tools. Insert the pin into the D-sub
connector housing locations as specified by the interconnect drawing in Appendix D. Verify the pin is
properly engaged into the connector by gently tugging on the wire. Route and secure the cable run from
the GDL 69/69A and GRT 10 to the other units away from sources of electrical noise.
Section 3 defines the electrical characteristics of all input and output signals. Required connectors and
associated hardware are supplied with the connector kit. See Appendix D for interconnect wiring
diagrams.

CAUTION

Check wiring connections for errors before inserting the GDL 69/69A into the rack or
mounting bracket or connecting the 9-pin D-sub to the GRT 10. Incorrect wiring could
cause component damage.

Table 2-4. Pin Contact Part Numbers

Wire Gauge

Garmin P/N 336-00021-00 336-00022-00
Military P/N M39029/58-360 M39029/63-368
AMP 204370-2 205090-1
Positronic MC8522D M39029/63-368
ITT Cannon 030-2042-000 031-1007-42

78-pin connectors

22-28 AWG

GDL 69/69A Installation Manual Page 2-7
190-00355-02 Rev. F

9-pin connectors

20-24 AWG

Installation Procedure

Table 2-5. Recommended Crimp Tools

20-24 AWG

Wire Gauge Hand Crimping Tool

Positioner

Military P/N M22520/2-01 M22520/2-09 M81969/1-04
Positronic 9507 9502-3 M81969/1-04
ITT Cannon 995-0001-584 995-0001-739 N/A
AMP 601966-1 601966-6 91067-1
Daniels AFM8 K42 M81969/1-04
Astro 615717 615725 M81969/1-04

Insertion/

Extraction Tool

NOTE

Insertion/extraction tools from ITT Cannon are all plastic; others are plastic with metal
tip. Non-Garmin part numbers shown are not maintained by Garmin and are subject to
change without notice.

 GDL 69/69A Backshell Assembly and D-Sub Connector

2.5.2.1 GDL 69/69A Connector Assembly

1. Backshell Cast Housing: Provides a mounting point for all other connector accessories.

2. Configuration Module: Installation details provided in Section 2.5.2.2.

3. D-sub Connector: Installation details provided in Section 2.5.2.2.

4. Spider Ground System: Allows shield grounds to be made to the backshell housing. Installation

details provided in Section 2.5.2.5.

5. Strain Relief Tab: Provides strength and support to wiring bundles.

6. Backshell Lid: Provides easy access when servicing connector.

Page 2-8 GDL 69/69A Installation Manual
Rev. F 190-00355-02

Table 2-6. GDL 69/69A Connector Assembly

9

Installation Procedure

Item Number (Reference

Figure 2-6)

1 Backshell, with Config 50/78 Pin 1 125-00085-00
2 PCB Assembly, Configuration Module 1 012-00605-00
3 Connector, High Density, 78 Pin 1 330-00185-78
4 Wire Harness, Backshell Ground 1 320-00212-00
5 Clamp, Backshell, 62/78 Pin 1 115-00499-03
6 Cover, Backshell, 50/78 Pin 1 115-00500-04
7 Screw, 4-40 x .187 FLHP100, Stainless Steel 2 211-63234-06
8 Screw, 4-40 x .375, Phillips, Stainless Steel 3 211-60234-10
9 Screw, 4-40 x .250, FLHP, Stainless Steel 2 211-63234-08

Description Qty

7

8

6

5

Garmin Part

Number

4

2

1

3

Figure 2-6. Garmin Connector Assembly

GDL 69/69A Installation Manual Page 2-9
190-00355-02 Rev. F