Garmin GMA 245 Installation Manual
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Garmin GMA 245 Installation Manual

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GMA 245/245R
Installation Manual
190-01879-11
August, 2017
Revision 6

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Summary of Contents for Garmin GMA 245

  • Page 1 GMA 245/245R Installation Manual 190-01879-11 August, 2017 Revision 6...
  • Page 2 Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic...
  • Page 3 California's Proposition 65. If you have any questions or would like additional information, please refer to our web site at www.garmin.com/prop65. NOTE Throughout this document, the use of GMA 245 refers to both the GMA 245 and the GMA 245R unless specifically noted otherwise. NOTE The Bluetooth®...
  • Page 4 3. Declaration of Conformity Hereby, Garmin declares that this product is in compliance with the Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: www.garmin.com/compliance.

  • Page 5: Table Of Contents

    4.2 Pin List ..........................4-1 4.3 Aircraft Power........................4-4 4.4 CAN Bus.......................... 4-4 4.5 Lighting Bus ........................4-5 4.6 Audio Inputs/Outputs and Mic Keys ................4-6 4.7 Discrete Inputs ....................... 4-10 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page iii...
  • Page 6 Section A Installation Considerations for Upgrading from a Garmin GMA 240 ....................A-1 A.1 Mechanical Considerations .................... A-1 A.2 Electrical Considerations ....................A-1 A.3 GMA 240 to GMA 245 Retrofit Connections ............... A-2 Appendix B Outline and Installation Drawings ..........B-1 Appendix C Interconnect Drawings..............C-1 190-01879-11 GMA 245/245R Installation Manual Rev.
  • Page 7 Figure 3-10 Shield Block D-Sub Spliced Signal Wire illustration ........3-16 Figure 3-11 Rear View of Rack and Connectors ..............3-17 Figure 3-12 GMA 245 Audio Shield Termination (top and bottom) ......... 3-17 Figure 3-13 GMA 245R Audio Shield Termination (top and bottom)....... 3-18 Figure 3-14 Diagnostics Mode ...................
  • Page 8 Figure C-4 Lighting Bus Example Interconnect Drawing............C-4 Figure C-5 Mono Audio Example Interconnect Drawing ............C-5 Figure C-6 Four Passenger Headset Wiring Example Interconnect Drawing ......C-6 Figure C-7 J2401 & J2402 Connector Layout Drawing............C-7 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page vi...
  • Page 9 Table 2-2 Contents of GMA 245 Standard Installation Kit..........2-1 Table 2-3 Contents of GMA 245R Standard Kit ..............2-1 Table 2-5 Contents of GMA 245 Conn Kit (011-02302-00, also used for GMA 35/350) ... 2-2 Table 2-6 Contents of GMA 245 Ring Terminal Kit (011-04151-00) ......... 2-2 Table 2-7 Contents of GMA 245 Pre-bagged Screws “D”...
  • Page 10 Table 4-12 TEL Audio/XCVR 3 I/O ..................4-9 Table 4-13 Headset Outputs ....................4-9 Table 4-14 Speaker Audio Output ..................4-10 Table 4-15 Discrete Inputs....................4-10 Table 4-16 Discrete Outputs ....................4-10 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page viii...

  • Page 11: Section 1 General Description

    This manual is intended to provide mechanical and electrical information for use in the planning and design of an installation of the GMA 245 into an aircraft. This manual is not a substitute for an approved airframe-specific maintenance manual, installation design drawing, or complete installation data package.

  • Page 12: Technical Specifications

    Depth Behind Panel with Connectors (measured from face of aircraft 8.09 inches (205.0 mm) panel to rear of connector backshells) GMA 245 Weight (Unit Only) 1.10 lbs (0.49 kg) GMA 245 Weight (Installed with rack, backplate, and connectors) 1.78 lbs (0.81 kg) 190-01879-11 GMA 245/245R Installation Manual Rev. 6...

  • Page 13: Table 1-3 Electrical Characteristics

    Telephone interfaces: 1 full-duplex (use rear LRU pins or Bluetooth) ICS Auto-Squelch/VOX: Independent DSP (digital signal processing) determined thresholds for each mic Note that keyed intercom is optional. Auto-squelch not available when using keyed ICS. 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 1-3...

  • Page 14: Table 1-4 Speaker Output

    The VIRB XE cannot be connected when using a phone (and vice versa). USB charge port - Rated for 10 W. The GMA 245 charge port features USB port detection that will connect the optimum charge rate for the device connected.

  • Page 15: Table 1-5 Gma 245/245R Power Requirements

    11 to 33 Vdc Leakage Current* < 1 mA *Current the unit draws if turned off (GMA 245 is turned of by the knob, GMA 245R can only be turned off by breaker). Table 1-6 GMA 245 Power Requirements Characteristic...

  • Page 16: Reference Documents

    1.4 Reference Documents The following publications are sources of additional information for installing the GMA 245. The installer should read all referenced materials along with this manual before attempting installation. Table 1-8 Reference Documents Part Number Document 190-01115-01 G3X Installation Manual 190-01754-00 G3X Touch Pilot’s Guide...

  • Page 17: Section 2 Installation Overview

    2 INSTALLATION OVERVIEW 2.1 Introduction This section provides the necessary information for the installation and checkout of the GMA 245 Audio Panel. Installation of the GMA 245 will differ according to equipment location and other factors. The appendices contain interconnect wiring diagrams, mounting dimensions, and information pertaining to installation.

  • Page 18: Table 2-5 Contents Of Gma 245 Conn Kit (011-02302-00, Also Used For Gma 35/350)

    Table 2-4 Contents of GMA 245 Back Plate Kit (011-00678-00, also used for GMA 240/340) Item Part Number Quantity Pre-bagged screws “D” (Table 2-7) 011-02650-03 Nut Cover, SMP 115-00261-00 Connector Plate Assembly, DCP 125-00040-00 Nut, Std, English, SS, #6-32 210-00036-07 Screw, 4-40 x 0.250, PHP, SS/P, w/NYL...
  • Page 19 Heat shrink tubing • SD card needed for updating software in the GMA 245 when not integrated in a G3X Touch system. Garmin recommends using a 4 GB Sandisk® SD card. Insulating Washers for Headset and Microphone Jacks can be found at the following suppliers: Switchcraft S1029 –...

  • Page 20: Installation Considerations

    2.4 Installation Considerations The GMA 245 interfaces with various avionics equipment. Fabrication of a wiring harness is required. Sound mechanical and electrical methods and practices are required for installation of the GMA 245. NOTE 3D audio is not available when using a mono headset or in aircraft wired with mono headset jacks.

  • Page 21: Cabling And Wiring

    2.8 Cooling Air The GMA 245 does not have provisions for attaching cooling air, however the thermal characteristics of the installation should always be assessed. An undesirable thermal condition could be created due to the unit's own internal power dissipation combined with restricted ventilation, or due to heat generated by adjacent equipment.

  • Page 22: Configuration, And Adjustment Options

    2.9 Configuration, and Adjustment Options The GMA 245 has several configuration/adjustment options (see Section 2.9.6). These configuration/ adjustments are as follows: • Wired Telephone Volume • Auxiliary 1 Volume • Auxiliary 2 Volume • Auxiliary 3 Volume • Alert 1 Volume •...

  • Page 23: Figure 2-2 Sd Card Slot And Dip Switch Locations

    LEAVE SWITCH IN OFF POSITION RESERVED LEAVE SWITCH IN OFF POSITION When set to ON, this prevents use of the GMA 245’s config mode UI. CONFIGURATION When installed in a G3X Touch system, this setting prevents the use of LOCKOUT the GMA 245’s config mode UI, but it does not prevent an integrated...

  • Page 24: Table 2-11 Gma 245R Dip Switch Configuration Settings

    RESERVED LEAVE SWITCH IN OFF POSITION RESERVED LEAVE SWITCH IN OFF POSITION RESERVED LEAVE SWITCH IN OFF POSITION RESERVED LEAVE SWITCH IN OFF POSITION CONFIGURATION LEAVE SWITCH IN OFF POSITION LOCKOUT 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 2-8...

  • Page 25: Figure 2-3 Front Panel Configuration

    2.9.6 Front Panel Configuration (GMA 245 only) Enter configuration mode by holding down the COM1 MIC and SPKR buttons while turning the unit on. When in configuration mode, pressing the PLAY button will annunciate the current software/database product version, e.g. “system two dot zero zero”.

  • Page 26: Table 2-12 Hardwire Configuration Options

    If DIP switch 1 is on, this active low input, when COPILOT ICS J2402 Input grounded, will allow microphone audio to the intercom KEY* from Copilot MIC. *Active Low 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 2-10...

  • Page 27: Updating Software

    2.10 Updating Software The G3X Touch system is used to update the GMA 245R software. The GMA 245 (if connected in a G3X Touch system), will also get software updates from the G3X Touch system. See the G3X Installation Manual for instruction on performing software updates using the G3X Touch system.

  • Page 28: Noise

    GMA 245 reboots. While a Bluetooth firmware update is being performed in the GMA 245, the Bluetooth annunciator will blink in an ON - ON - OFF pattern for several minutes. When the Bluetooth update is completed, the Bluetooth functions will return to normal operation.

  • Page 29: Mounting Requirements

    2.12 Mounting Requirements The GMA 245 mounting surface must be capable of providing structural support and electrical bond to the aircraft to minimize radiated EMI and provide protection from High-Intensity Radiation Fields (HIRF). The GMA 245 is mounted using a GMA 245 unit rack (Figure 2-4). See Section 3.6...

  • Page 30: Figure 2-5 Gma 245R W/Mounting Brackets On Front And Back

    Figure 2-6 GMA 245R w/Mounting Brackets on Sides NOTE The side mounting bracket show in Figure 2-6 is an additional part included in the standard kit, and is also available as an optional accessory. 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 2-14...

  • Page 31: Section 3 Installation Procedure

    Military P/N M39029/58-360 *Used for 18 AWG wire, is not included in the GMA 245/245R installation kits, and is not needed to install the GMA 245/245R. GPN 336-00021-00 is used for 22 AWG wire and is included in the GMA 245/245R installation kits. Use the 336-00044-00 if installing 18 AWG wire for Power and Ground.

  • Page 32: Jackscrew And Shield Block Backshell Installation Instructions

    615725 M81969/1-04 NOTE 1. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject to change without notice. 2. Extracting #18 and #20 contacts requires that the expanded wire barrel be cut off from the contact. It may also be necessary to push the pin out from the face of the connector when using an extractor due to the absence of the wire.

  • Page 33: Table 3-4 Parts Supplied For A Gma 245 Backshell Installation (Figure 3-2)

    The items listed in Table 3-4 are provided in the GMA 245 Connector Kit (Table 2-5 Table 2-6). Table 3-4 Parts supplied for a GMA 245 Backshell Installation (Figure 3-2) Item # Description Cast Backshell Housing 125-00083-00 Contact Pin, Mil Crimp, Size 22D 336-00021-00 Screw,8-32x.312,PHP,SS/P...

  • Page 34: Figure 3-1 Gma 245R Jackscrew Backshell Assembly

    Figure 3-1 GMA 245R Jackscrew Backshell Assembly 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-4...

  • Page 35: Figure 3-2 Gma 245 Shield Block Backshell Assembly

    14 14 15 15 13 13 16 16 12 12 17 17 11 11 18 18 19 19 10 10 Figure 3-2 GMA 245 Shield Block Backshell Assembly 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-5...

  • Page 36: Figure 3-3 Method A.1 For Shield Termination

    Figure 3-2 (as appropriate), and Figure 3-3. 1. The appropriate number of Backshells will be included in the particular LRU connector kit. Figure 3-3 Method A.1 for Shield Termination Table 3-6 Shielded Cable Preparations for Garmin Connectors Number Window Window Ideal...
  • Page 37 The number of individual strands in each braid bundle is not specified. (e.g. QQB575F36T062) NOTE Flat Braid as opposed to insulated wire is specified in order to allow continuing air worthiness by allowing for visual inspection of the conductor. 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-7...

  • Page 38: Figure 3-4 Insulation/Contact Clearance

    Wire must be visible in the inspection hole after crimping and the insulation must be 1/64 – 1/32 inches from the end of the contact as shown in Figure 3-4. Figure 3-4 Insulation/Contact Clearance 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-8...
  • Page 39 (item 13). Warning: Placing the grooved side of the clamp across the cable bundle may risk damage to wires. 13. Attach the cover (item 14) to the backshell (item 1) using the two screws (item 15). 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-9...

  • Page 40: Figure 3-5 Method A.2 (Daisy Chain) For Shield Termination

    (Figure 3-5). All other restrictions and instructions for the shield termination technique set forth for Method A.1 are still applicable. NOTE The maximum length of the combined braids should be approximately 4 inches. Figure 3-5 Method A.2 (Daisy Chain) for Shield Termination 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-10...
  • Page 41 Flat Braid (item 4, Figure 3-1 Figure 3-2) to be attached. NOTE Reference Section 3.3.2 for recommended solder sleeves and flat braid. The same recommendations are applicable to this technique. 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-11...

  • Page 42: Figure 3-6 Method B.1 (Quick Term) For Shield Termination

    Figure 3-6 Method B.1 (Quick Term) for Shield Termination Table 3-7 Shielded Cable Preparations – (Quick Term) Number of Pins Quick Term Min Quick Term Max Quick Term Backshell Size Std/HD (inches) (inches) Float (inches) 44 Pin 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-12...

  • Page 43: Figure 3-7 Method B.2 (Daisy Chain-Quick Term) For Shield Termination

    (Figure 3-7). All other restrictions and instructions for the shield termination technique set forth for Method B.1 are still applicable. NOTE The maximum length of the combined braids should be approximately 4 inches. Figure 3-7 Method B.2 (Daisy Chain-Quick Term) for Shield Termination 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-13...

  • Page 44: Figure 3-8 Daisy Chain Between Methods A And B

    Figure 3-8 Daisy Chain between Methods A and B 3.3.7 Splicing Signal Wires Refer to Figure 3-9 for GMA 245R installations, or to Figure 3-10 for GMA 245 installations. NOTE Figure 3-9 and Figure 3-10 illustrate that a splice must be made within a 3 inch window from outside the edge of clamp to the end of the 3 inch max mark.

  • Page 45: Figure 3-9 Jackscrew D-Sub Spliced Signal Wire Illustration

    Figure 3-9 Jackscrew D-Sub Spliced Signal Wire illustration 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-15...

  • Page 46: Figure 3-10 Shield Block D-Sub Spliced Signal Wire Illustration

    Figure 3-10 Shield Block D-Sub Spliced Signal Wire illustration 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-16...

  • Page 47: Backshell Assembly

    3.4 Backshell Assembly The GMA 245 connector kit includes two Garmin backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing using the Shield Block. To assemble the backshell connectors and grounding system, refer to instructions provided in the Section 3.3.

  • Page 48: Unit Installation

    4. Assemble the rear plate into the GMA 245 unit rack. 5. Insert the GMA 245 into the rack, noting proper orientation as shown on the installation drawing. 6. Lock the GMA 245 in place using a 3/32” Allen tool.

  • Page 49: Post Installation Checkout

    3.7 Post Installation Checkout CAUTION Check wiring connections for errors before inserting the GMA 245 into the rack. Incorrect wiring could cause internal component damage. An in-aircraft checkout may be performed in the aircraft on the ramp with known good microphone, headset, and avionics receivers.
  • Page 50 RADIO MUTE and ICS MUTE buttons. Also, deselect the PILOT or CREW buttons so that there is no ICS Isolation. 3.7.8 USB Charge test 1. Connect your device to the USB charge port and verify your device charges. 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 3-20...

  • Page 51: Continued Airworthiness

    Other than for regulatory checks, maintenance of the GMA 245/245R is "on condition" only. Periodic maintenance of the GMA 245/245R is not required. Instructions for Continued Airworthiness (ICA) are not required for this product under 14 CFR Part 21 since the GMA 245/245R has received no FAA approval or endorsement.

  • Page 52: Disabling Bluetooth

    3.10 Disabling Bluetooth To aid in troubleshooting the GMA 245, Bluetooth function can be disabled. To disable Bluetooth: 1. Press and hold the TEL key for 5 seconds. 2. An audio clip will be heard in the headset that says “Bluetooth Disabled”.

  • Page 53: Section 4 System Interconnects

    4.1 Connector Description The GMA 245 has two 44-pin connectors located at the rear of the unit designated J2401 and J2402 which are oriented as shown in Figure 4-1. The GMA 245 is installed into a rack with shield block backshells.
  • Page 54 PASS HEADSET AUDIO OUT RIGHT PASS HEADSET AUDIO OUT LO ALERT 3, 4, AUX 3 AUDIO IN LO ALERT 4 AUDIO IN HI *Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active) 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-2...

  • Page 55: Table 4-2 J2402 Pin Assignments

    COPILOT MIC AUDIO IN HI COPILOT MIC KEY* IN COPILOT MIC AUDIO IN LO PASS 1 MIC AUDIO IN HI *Denotes Active Low (Inputs: ground to activate; Outputs: grounded when active) 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-3...

  • Page 56: Aircraft Power

    4.3 Aircraft Power The GMA 245 has four pins for aircraft power bus inputs. Use one wire for each of the pins connecting to the aircraft power and ground. Do not splice the power and ground pins at the unit and use only one wire to aircraft power and ground.

  • Page 57: Lighting Bus

    CAN Bus Terminator The following procedures are applicable only if the GMA 245 is at the end of the CAN bus, a 120 Ω termination will be required to be added between the CAN HI and CAN LO pins at the unit. This termination can be accomplished in 2 different ways.

  • Page 58: Audio Inputs/Outputs And Mic Keys

    COM 2 Audio Input J2401 COM 2 MIC AUDIO OUT HI COM 2 Audio Output J2401 COM 2 AUDIO LO Ground Reference for COM 2 *Denotes Active Low (grounded when active) 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-6...

  • Page 59: Table 4-8 Alert Audio I/O

    NAV 1 Audio Input J2401 NAV 1 AUDIO IN LO NAV 1 Ground Reference J2401 NAV 2 AUDIO IN HI NAV 2 Audio Input J2401 NAV 2 AUDIO IN LO NAV 2 Ground Reference 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-7...

  • Page 60: Table 4-10 Failsafe Warning Audio

    MUSIC 1 IN LO Differential Reference for Music 1 J2402 MUSIC 2 IN LEFT Music 2 Input J2402 MUSIC 2 IN RIGHT J2402 MUSIC 2 IN LO Differential Reference for Music 2 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-8...

  • Page 61: Table 4-12 Tel Audio/Xcvr 3 I/O

    GMA 245. A true mono headset will work correctly with the GMA 245, but only mono (left channel) audio will be heard, and 3D audio will not be available (even if enabled). The GMA 245 will detect the mono headset (if stereo jacks are used), and automatically switch to mono operation. 3D audio is not available with mono headsets or in installations that use mono jacks for the headsets.

  • Page 62: Discrete Inputs

    Discrete Input *Denotes Active Low (Inputs: ground to activate) 4.7.1 Discrete Outputs Table 4-16 Discrete Outputs Connector Pin Name Description J2401 COM ACTIVE OUT* Discrete Out *Denotes Active Low (Grounded when active) 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page 4-10...

  • Page 63: Section A Installation Considerations For Upgrading From A Garmin

    This appendix contains installation considerations for upgrading from a Garmin GMA 240. This is not a set of comprehensive installation instructions for installing a Garmin GMA 245 in place of a Garmin GMA 240. Read this manual in its entirety before starting any installation.

  • Page 64: Gma 240 To Gma 245 Retrofit Connections

    CREW ISO *IN ALERT 3 AUDIO IN HI PASSENGER ICS KEY* IN CAN BUS LO COPILOT ICS KEY* IN CAN BUS HI Figure A-1 GMA 240 to GMA 245 Retrofit Connections 190-01879-11 GMA 245/245R Installation Manual Rev. 6 Page A-2...

  • Page 65: Appendix B Outline And Installation Drawings

    APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B-1 GMA 245 Outline Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page B-1...

  • Page 66: Figure B-2 Gma 245 Installation Drawing

    APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B-2 GMA 245 Installation Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page B-2...

  • Page 67: Figure B-3 Gma 245R Outline Drawing, End Mount Bracket Installation

    APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B-3 GMA 245R Outline Drawing, End Mount Bracket Installation 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page B-3...

  • Page 68: Figure B-4 Gma 245/245R Outline Drawing, Side Mount Bracket Installation

    APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B-4 GMA 245/245R Outline Drawing, Side Mount Bracket Installation 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page B-4...

  • Page 69: Figure B-5 Gma 245/245R Installation Drawing, End And Side Bracket Mounting

    APPENDIX B OUTLINE AND INSTALLATION DRAWINGS END MOUNT BRACKET INSTALLATION SIDE MOUNT BRACKET INSTALLATION Figure B-5 GMA 245/245R Installation Drawing, End and Side Bracket Mounting 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page B-5...

  • Page 70: Appendix Cinterconnect Drawings

    10. THE LIGHTING BUS VOLTAGE RANGE IS CONFIGURABLE FOR EITHER 14 OR 28 VOLT SYSTEMS. REFER TO INSTALL MANUAL CONFIGURATION OPTIONS. 11. GARMIN RECOMMENDS USING STEREO HEADPHONES. IF MONO JACKS ARE DESIRED, GARMIN RECOMMENDS THE USE OF THE LEFT OUTPUT ONLY (LEAVE THE RIGHT CHANNEL UNCONNECTED). DO NOT CONNECT THE LEFT AND RIGHT CHANNELS TOGETHER.

  • Page 71: Figure C-2 J2401 Connector Example Interconnect Drawing

    MALE TERMINATOR TO THE FEMALE DSUB USING SEE NOTE 14 THE BACKSHELL TO TIGHTEN CONNECTION. Inhibit Input of Applicable COM ACTIVE* OUT Audio Source NO CONNECT 1,2,6,25,26,27,28,38,39 Figure C-2 J2401 Connector Example Interconnect Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-2...

  • Page 72: Figure C-3 J2402 Connector Example Interconnect Drawing

    SPARE GROUND CAN BE USED FOR ANY GROUND RETURN EXCEPT POWER OR MUSIC. DO NOT USE FOR POWER OR MUSIC GROUND. NO CONNECT NO CONNECT Figure C-3 J2402 Connector Example Interconnect Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-3...

  • Page 73: Figure C-4 Lighting Bus Example Interconnect Drawing

    TO 28 VOLT LIGHTING BUS LO IF NEITHER OF THE ABOVE LIGHTING BUS CONFIGURATIONS ARE WIRED, THE UNIT WILL DEFAULT TO USE THE DISPLAY PHOTOCELL FOR LIGHTING CONTROL Figure C-4 Lighting Bus Example Interconnect Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-4...

  • Page 74: Figure C-5 Mono Audio Example Interconnect Drawing

    MUSIC 1 IN RIGHT MONO AUDIO SOURCE MONO AUDIO OUT HI MUSIC 2 IN LEFT MUSIC 2 IN LO MONO AUDIO OUT LO MUSIC 2 IN RIGHT Figure C-5 Mono Audio Example Interconnect Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-5...

  • Page 75: Figure C-6 Four Passenger Headset Wiring Example Interconnect Drawing

    GMA 245 J2401 P2401 PASSENGER HEADSET PARALLEL WIRING UP TO 4 JACKS NOTE 5 PASS HEADSET LO PASS HEADSET RIGHT PASS HEADSET LEFT Figure C-6 Four Passenger Headset Wiring Example Interconnect Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-6...

  • Page 76: Figure C-7 J2401 & J2402 Connector Layout Drawing

    AUDIO IN LO AUDIO IN HI AUDIO IN LO AUDIO IN HI AUDIO IN LO KEY* IN AUDIO IN HI AUDIO OUT RIGHT Figure C-7 J2401 & J2402 Connector Layout Drawing 190-01879-11 GMA 245/245R Installation Manual Revision 6 Page C-7...

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