Garmin GMA 345 Installation Manual Download Page 1

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190-01878-02

November, 2020

Revision 5

GMA 342/345

Installation Manual

Summary of Contents for GMA 345

Page 1: ...190 01878 02 November 2020 Revision 5 GMA 342 345 Installation Manual ...

Page 2: ... unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited 2017 The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by Garmin is under license Other trademarks and trade names are those of their respective owners Garmin International Inc 1200 E 151st Street Olathe KS 66062 USA Aviation Panel Mount ...

Page 3: ...ons in whole or in part of this manual DEFINITIONS OF WARNINGS CAUTIONS AND NOTES WARNING This product its packaging and its components contain chemicals known to the State of California to cause cancer birth defects or reproductive harm This Notice is being provided in accordance with California s Proposition 65 If you have any questions or would like additional information please refer to our we...

Page 4: ... party providers You acknowledge that the Software is the property of Garmin and or its third party providers and is protected under the United States of America copyright laws and international copyright treaties You further acknowledge that the structure organization and code of the Software are valuable trade secrets of Garmin and or its third party providers and that the Software in source cod...

Page 5: ...l Bonding 2 7 2 7 Cooling Air 2 8 2 8 Configuration and Adjustment Options 2 8 2 9 Updating Software 2 13 2 10 Electrical Noise 2 14 2 11 Mounting Requirements 2 15 Section 3 Installation Procedure 3 1 3 1 Unpacking Unit 3 1 3 2 Electrical Connections 3 1 3 3 Antenna Installation 3 2 3 4 Shield Block Backshell Installation Instructions 3 2 3 5 Backshell Assembly 3 3 3 6 Unit Installation 3 3 3 7 P...

Page 6: ...crete Inputs 4 12 4 8 Marker Beacon 4 12 Appendix A Installation Considerations for Upgrading from a Garmin GMA 340 A 1 A 1 Mechanical Considerations A 1 A 2 Electrical Considerations A 1 A 3 GMA 340 to GMA 342 345 Retrofit Connections A 2 Appendix B Outline and Installation Drawings B 1 Appendix C Interconnect Drawings C 1 ...

Page 7: ...cockpit speaker Both also include a cockpit voice recorder and playback feature to help in situations where a COM transmission may need to be heard again The GMA 345 includes a Bluetooth transceiver for listening to music and making phone calls or sending headset audio to a VIRB XE and a 10 Watt USB charge port for phones and tablets The GMA 342 does not have Bluetooth capability and includes an a...

Page 8: ...1 AUX 2 AUX 3 Microphone Inputs 6 Pilot Copilot 4 Passenger Microphone Keys 2 Pilot Copilot Music Inputs rear connector 2 Alert Inputs unswitched 4 Speaker Output 1 Headset Outputs 3 Pilot Copilot Passenger passenger output can drive 4 headsets Discrete Inputs 5 Discrete Outputs 3 Failsafe Channel 1 Only Heard During Power Off Mode Lighting Bus 1 SD Card Socket 1 8 Position DIP Switch 1 Note that ...

Page 9: ... of this form see the dealer OEM portion of the Garmin web site www garmin com 1 3 1 Physical Characteristics Table 1 2 Physical Characteristics GMA 342 345 Characteristic Specification Bezel Height 1 30 inches 33 0 mm Bezel Width 6 30 inches 160 0 mm Rack Height Dimple to Dimple 1 33 inches 34 0 mm Rack Width 6 30 inches 160 0 mm Depth Behind Panel with Connectors measured from face of aircraft p...

Page 10: ...iver Transceiver bandwidth 100 Hz to 6 5 kHz Special functions Fail safe operation All inputs use MASQ processing Master Avionics Squelch Max input 5 Vrms Intercom Functions Positions 6 Pilot Copilot 4 Passengers Volume controls 4 Pilot ICS Pilot Music Copilot Passenger ICS Copilot Passenger Music Microphone input impedance 150 Ω compatible with 150 to 600 Ω mics Microphone bias voltage 11 Vdc del...

Page 11: ...for 10 W The GMA 345 charge port features USB port detection that will connect the optimum charge rate for the device connected The charge port supports a maximum of 2 1 Amp charge current for devices The USB charge port will shutdown and protect the GMA 345 for current draw above 2 3 Amps 3 5 mm Front Panel Jack GMA 342 only The GMA 342 has a standard 3 5 mm front panel jack for connecting by cab...

Page 12: ...onsumption Idle Current 0 34 A 14 VDC 0 19 A 28 VDC 4 76 W 14 VDC 5 32 W 28 VDC Typical Operating Current 0 83 A 14 VDC 0 43 A 28 VDC 11 62 W 14 VDC 12 04 W 28 VDC Maximum Current 1 19 A 14 VDC 0 90 A 28 VDC 16 66 W 14 VDC 25 20 W 28 VDC Unit current drawn with power applied no audio and minimum lighting Table 1 7 GMA 345 Power Requirements Characteristic Current Draw Power Consumption Idle Curren...

Page 13: ...ions as defined in this installation manual The Appliance Project Identifier API for the GMA 342 and GMA 345 is GMN 01319 The API has been used for project identification with the FAA See applicable hardware and software part numbers to identify appliance approvals 1 4 1 TSO Compliance Table 1 8 GMA 342 345 011 03520 00 and 011 03520 10 TSO Compliance Function TSO ETSO RTCA EUROCAE Category Applic...

Page 14: ... TSO C35d to not permanently and legibly marking the unit with each TSO s required information Garmin received a deviation from TSO C35d to use FAR 45 15 b instead of FAR 37 7 d as the general rules governing holders of the TSO authorizations Garmin received a deviation from TSO C35d to use RTCA DO 160F instead of RTCA DO 138 as the standard for Environmental Conditions and Test Procedures for Air...

Page 15: ...i transmitter product procedures 2 IC GMA 345 Contains IC 5123A BGTWT32I NOTE This device complies with Innovation Science and Economic Development Canada license exempt RSS standard s Operation is subject to the following two conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device Ce...

Page 16: ... Documents The following publications are sources of additional information for installing the GMA 342 345 The installer should read all referenced materials along with this manual before attempting installation Table 1 11 Reference Documents Part Number Document 190 00149 01 GMA 340 Installation Manual 190 00313 09 Shield Block Installation Instructions 190 01878 00 GMA 342 Pilot s Guide 190 0187...

Page 17: ... desired performance and reliability from the GMA 342 345 The guidance of FAA advisory circulars AC 43 13 1B and AC 43 13 2B where applicable may be found useful for making retro fit installations that comply with FAA regulations 2 2 Installation Materials 2 2 1 Unit Configurations Table 2 1 Catalog Part Numbers Model Catalog Part Number Unit Only Part Number GMA 342 Unit Only 010 01319 10 011 035...

Page 18: ... 00 Conn Kit GMA 342 345 also used for GMA 35 350 Table 2 5 011 02302 00 SMP Install Rack GMA 342 345 also used for GMA 240 340 115 00262 00 Table 2 4 Contents of GMA 342 345 Back Plate Kit 011 00678 00 also used for GMA 240 340 Item Part Number Quantity Pre bagged screws D Table 2 6 011 02650 03 1 Nut Cover SMP 115 00261 00 1 Connector Plate Assembly DCP 125 00040 00 1 Nut Std English SS 6 32 210...

Page 19: ...e bundle Solder Sleeves for terminating the shields of the cable to the GMA 342 345 backshell See 190 00313 09 for part numbers Heat shrink tubing SD card needed for updating software in the GMA 342 345 Garmin recommends using a 4 GB Sandisk SD card Insulating Washers for Headset and Microphone Jacks can be found at the following suppliers Dallas Avionics Digi key 100053 Shoulder Washer SC1147 ND ...

Page 20: ...ono headsets It is recommended that stereo jacks and stereo headsets be used 2 4 1 Auxiliary Inputs For the GMA 345 3 COM unit a single AUX button is used to select all 3 AUX inputs for simultaneous monitoring For the GMA 342 and 345 2 COM version two buttons AUX1 and AUX2 are used to select deselect the 3 AUX inputs Pressing the AUX1 button selects deselects the AUX 1 and AUX 3 receivers Pressing...

Page 21: ...a manufacturer s instructions If the antenna is being installed on a composite aircraft ground planes must sometimes be added Conductive wire mesh radials or thin aluminum sheets embedded in the composite material provide the proper ground plane allowing the antenna pattern gain to be maximized for optimum performance 2 4 2 3 Marker Beacon Antenna Cable Use coaxial cable meeting the applicable avi...

Page 22: ...ield to D Sub as short as possible Ensure the distance from the beginning of the exposed shield to D Sub is no more than 1 5 inches long Terminate the center conductor by directly connecting it to the D sub through a crimp pin without a pigtail Figure 2 1 below represents a suggested method for terminating the marker beacon coaxial cable using M17 128 RG400 terminated into a high density D Sub con...

Page 23: ...d Wiring Refer to the interconnect examples in Appendix C for wire gauge guidance In some cases a larger gauge wire such as AWG 18 or 20 may be needed for power connections If using AWG 18 barrel contacts ensure that no two contacts are mounted directly adjacent to each other This minimizes the risk of contacts touching and shorting to adjacent pins and to ground Use wire and cable meeting the app...

Page 24: ...olation Option Section 2 8 4 2 8 1 Master Avionics Squelch MASQ Function MASQ functions to prevent low level noise from being passed to the headset ear speakers this is known as squelching or muting the audio To break or open squelch means that enough audio signal is present that the signal is passed through and can be heard Increasing this setting increases the signal level required to break open...

Page 25: ... Normally the Pilot will be positioned to the left in the Copilot s headset and the Copilot will be positioned to the right in the Pilot s headset When set to ON this setting reverses that so the Pilot is positioned to the right in the Copilot s headset and the Copilot is positioned to the left in the Pilot s headset For the GMA 345 3 COM unit this also sets which knobs control Pilot volumes vs Co...

Page 26: ...gibility In moderate to lower noise cockpits the default filter usually provides better intelligibility Music During Isolation configuration changes the behavior of the PILOT and CREW isolation modes such that music is still heard by the pilot and copilot when they are isolated from the passengers Pressing the TEL key selects Marker Beacon sensitivity offset mode Press the TEL key until the desire...

Page 27: ...UDIBLY ANNUNCIATES SOFTWARE AND DATABASE PRODUCT VERSIONS BOOT BLOCK SYSTEM AUDIO AND BLUETOOTH ADJUSTMENTS PILOT USED FOR INCREASING LEVELS OR ENABLING OPTIONS CREW USED FOR DECREASING LEVELS OR DISABLING OPTIONS VOLUMES PRESSING CYCLES THROUGH VOLUMES AUX 1 2 3 ALERT 1 2 3 4 WIRED TELEPHONE MARKER BEACON SPEAKER SPEAKER PA MASQ PRESSING ENABLES MASQ ADJUSTMENTS OPTIONS PRESSING CYCLES THROUGH OP...

Page 28: ...g audio into the GMA 342 345 while there is COM activity J3402 13 PASSENGER ICS KEY Input If DIP switch 1 is on this active low input when grounded will allow microphone audio to the intercom from Passenger MIC J3402 20 COM SWAP Input When grounded the MIC selected COM will swap For the GMA 345 3 COM unit this cycle includes selection of COM 3 MIC 1 2 3 1 2 3 J3402 22 PLAY KEY Input When grounded ...

Page 29: ...ard is connected to the PC in the SD card slot 9 Run the executable file that was downloaded and follow the prompts on the screen to create the software loader card 10 After the card has been created select finish to complete the process 11 Remove the card from the slot The loader card is now ready to use 2 9 3 Loading Software to the GMA 342 345 1 Remove the unit from the rack using a 3 32 Allen ...

Page 30: ...re brought together care must be taken to minimize effects from coupled interference and ground loops Coupled interference can sneak into audio system interconnecting cables when they are routed near large AC electric fields AC voltage sources and pulse equipment strobes spark plugs magnetos EL displays CRTs etc Interference can also couple into audio system interconnecting cables by magnetic indu...

Page 31: ...igure 2 4 See Section 3 6 for installation instructions NOTE Rear support is recommended to ensure a sturdy mount CAUTION The top cover of the unit has a connector number 1 and 2 stamped into it and centered in front of each connector The 011 00678 00 backplate also has a stamped number on it To prevent damage to the unit verify the connectors are positioned correctly connector 1 is connected in p...

Page 32: ...subminiature connectors see Figure 3 1 Section 4 defines the electrical characteristics of all input and output signals Required connector and associated hardware are supplied in the connector kits Refer to Section 2 3 for the GMA 342 345 standard kit part numbers that contain the necessary hardware See Appendix C for interconnect wiring diagrams CAUTION Check wiring connections for errors before ...

Page 33: ... of the BNC connector 3 4 Shield Block Backshell Installation Instructions 3 4 1 Backshell Installation Parts The GMA 342 345 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...

Page 34: ...n inserting the GMA 342 345 into the rack This may damage the connectors unit and or rack If heavy resistance is felt during installation stop Remove the GMA 342 345 and identify the source of resistance 3 6 1 GMA 342 345 Installation For final installation and assembly refer to the outline and installation drawings Figure B 1 and Figure B 2 1 Assemble the backshell as described in Section 3 5 2 C...

Page 35: ...lug contacts and is an inevitable consequence of plugging a mono headset into a stereo jack During power on operation this short will not damage the audio panel 3 Verify that COM1 transceiver can be heard in the pilot s headset 4 Verify that COM1 can key and transmit the pilot s mic audio by verifying received sidetone or checking reception of the transmission with another radio tuned to receive t...

Page 36: ...etooth annunciator flashes to indicate the GMA 345 is in pairing mode and Pairing Enabled audio is played Once the Bluetooth annunciator flashes the GMA is discoverable for two minutes or until a device is paired or connected While discoverable a Bluetooth enabled device e g cellphone or tablet can find and pair with the GMA Refer to the device s instruction manual for information on how to pair a...

Page 37: ...d PA audio will still be delivered to the headsets CAUTION Be sure to check all aircraft control movements before flight is attempted to ensure that the wiring harness does not touch any moving part 3 7 7 Marker Beacon Operation if installed 1 With a marker signal generator transmitter test set generate Marker Tones 2 From the pilot headset position verify that marker audio can be heard when selec...

Page 38: ... are off if no diagnostic information is available The image below depicts which button annunciators are associated with which diagnostic states NOTE The GMA 345 2 COM version is used as the example for this section Some of the GMA 345 3 COM unit button text labels differ from the 2 COM version Figure 3 2 Diagnostics Mode 2 COM version shown A Headset Short indication means that the unit has detec...

Page 39: ...TEL key for 5 seconds 2 An audio clip will be heard in the headset that says Bluetooth Disabled 3 To re enable Bluetooth connectivity without power cycling press and hold the TEL key for 5 seconds 4 An audio clip will be heard in the headset that says Bluetooth Enabled NOTE Once disabled the GMA 345 Bluetooth connectivity does not remain disabled after power cycling The GMA 345 Bluetooth connectiv...

Page 40: ...4 2 J3401 and J3402 pin assignments are given in Table 4 1 Table 4 2 and Appendix C Following the Table 4 1 Table 4 2 additional tables group pin connections by function An asterisk following a signal name denotes that the signal is active low logic Active low inputs are connected to ground to activate Active low outputs sink current to ground when active 4 2 1 J3401 Connector Table 4 1 J3401 Pin ...

Page 41: ... NAV 2 AUDIO IN LO 21 RCVR 3 AUDIO IN HI AUX 1 IN 22 RCVR 3 AUDIO IN LO AUX 1 23 RCVR 5 AUDIO IN HI AUX 3 IN 24 COM ACTIVE OUT OUT 25 RESERVED GMA 342 345 WIRED TEL AUDIO IN HI GMA 345 3 COM unit only IN 26 RESERVED GMA 342 345 WIRED TEL AUDIO IN LO GMA 345 3 COM unit only IN 27 RESERVED GMA 342 345 WIRED TEL MIC OUT HI GMA 345 3 COM unit only OUT 28 RESERVED GMA 342 345 WIRED TEL MIC OUT LO GMA 3...

Page 42: ...OPILOT HEADSET AUDIO OUT LEFT OUT 4 COPILOT HEADSET AUDIO OUT RIGHT OUT 5 LIGHTING BUS 14V LO 28V LO 6 LIGHTING BUS 14V HI 28V LO IN 7 LIGHTING BUS 14V HI 28V HI IN 8 AIRCRAFT POWER IN 9 AIRCRAFT POWER IN 10 POWER GROUND 11 POWER GROUND 12 PA MUTE OUT OUT 13 PASSENGER ICS KEY IN 14 ALERT 2 LO FAILSAFE AUDIO IN LO 15 ALERT 2 AUDIO IN HI IN 16 PILOT HEADSET AUDIO OUT LEFT OUT 17 RS 232 IN IN 18 RS 2...

Page 43: ...COPILOT ICS KEY IN 31 PILOT HEADSET AUDIO OUT RIGHT OUT 32 COPILOT MIC AUDIO IN HI IN 33 COPILOT MIC KEY IN IN 34 COPILOT MIC AUDIO IN LO 35 PASS 1 MIC AUDIO IN HI IN 36 PASS 1 MIC AUDIO IN LO 37 PASS 2 MIC AUDIO IN HI IN 38 PASS 2 MIC AUDIO IN LO 39 PASS 3 MIC AUDIO IN HI IN 40 PASS 3 MIC AUDIO IN LO 41 PASS 4 MIC AUDIO IN HI IN 42 PASS 4 MIC AUDIO IN LO 43 SPEAKER AUDIO OUT LO 44 SPEAKER AUDIO O...

Page 44: ...en driving a standard RS232 load 4 6 Audio Inputs Outputs and Mic Keys 4 6 1 Mic Audio Inputs and Mic Keys Table 4 4 Lighting Bus Pin Connector Pin Name I O 5 J3402 LIGHTING BUS 14V LO 28V LO 6 J3402 LIGHTING BUS 14V HI 28V LO IN 7 J3402 LIGHTING BUS 14V HI 28V HI IN Table 4 5 Lighting Bus Pin Connector Pin Name I O 17 J3402 RS 232 IN IN 18 J3402 RS 232 OUT OUT Table 4 6 Mic Audio Inputs and Mic K...

Page 45: ...2 MIC AUDIO IN LO 39 J3402 PASS 3 MIC AUDIO IN HI Passenger 3 Mic audio and ground reference IN 40 J3402 PASS 3 MIC AUDIO IN LO 41 J3402 PASS 4 MIC AUDIO IN HI Passenger 4 Mic audio and ground reference IN 42 J3402 PASS 4 MIC AUDIO IN LO Denotes Active Low Ground to activate Table 4 6 Mic Audio Inputs and Mic Keys Pin Connector Pin Name Description I O ...

Page 46: ...e Table 4 8 COM Audio and Mic Keys GMA 345 3 COM unit only Pin Connector Pin Name Description I O 3 J3401 COM 3 AUDIO IN COM 3 Audio Input GMA 345 3 COM unit only IN 4 J3401 COM 3 AUDIO LO Ground Reference for COM 1 GMA 345 3 COM unit only 5 J3401 COM 3 MIC OUT COM 3 Audio Output GMA 345 3 COM unit only OUT 6 J3401 COM 3 MIC KEY OUT Enables transmission on the respective transceiver unit GMA 345 3...

Page 47: ...V Audio Inputs Pin Connector Pin Name Description I O 21 J3401 RCVR 3 AUDIO IN HI AUX 1 RCVR 3 AUX 1 Audio Input IN 22 J3401 RCVR 3 AUDIO IN LO AUX 1 Ground Reference for RCVR 3 AUX 1 Input 7 J3401 RCVR 4 AUDIO IN HI AUX 2 RCVR 4 AUX 2 Audio Input IN 8 J3401 RCVR 4 AUDIO IN LO AUX 2 Ground Reference for RCVR 4 AUX 2 Input 23 J3401 RCVR 5 AUDIO IN HI AUX 3 RCVR 5 AUX 3 Audio Input IN 43 J3401 ALERT...

Page 48: ...6 Music Inputs The MUSIC LO signals are not the same reference as other ground connections The MUSIC LO signals should be used as part of a differential pair along with the MUSIC RIGHT and MUSIC LEFT signals If the MUSIC LO signal is tied to a ground connection the music will contain noise and the audio quality will be degraded Table 4 11 Failsafe Warning Audio Pin Connector Pin Name Description I...

Page 49: ... to protect the GMA 342 345 headset output from driving a signal into a short and also for internal audio routing determined by the mono headset plugged into the headset jack In aircraft systems that use mono headset jacks and are wired correctly if used mono jacks should always use left channel audio and headset lo 3D audio will not be available and only left channel audio for Table 4 13 TEL Audi...

Page 50: ...ctor Pin Name Description I O 16 J3402 PILOT HEADSET AUDIO OUT LEFT Pilot Headset Audio Output OUT 31 J3402 PILOT HEADSET AUDIO OUT RIGHT OUT 1 J3402 PILOT HEADSET AUDIO OUT LO 3 J3402 COPILOT HEADSET AUDIO OUT LEFT Copilot Headset Audio Output OUT 4 J3402 COPILOT HEADSET AUDIO OUT RIGHT OUT 2 J3402 COPILOT HEADSET AUDIO OUT LO 40 J3401 PASS HEADSET AUDIO OUT LEFT Passenger Headset Audio Output OU...

Page 51: ...onnector Pin Name Description I O 16 J3401 PILOT ICS KEY Discrete Input IN 13 J3402 PASSENGER ICS KEY Discrete Input IN 20 J3402 COM SWAP Discrete Input IN 22 J3402 PLAY KEY Discrete Input IN 30 J3402 COPILOT ICS KEY Discrete Input IN Denotes Active Low Inputs ground to activate Table 4 18 Discrete Outputs Pin Connector Pin Name Description I O 24 J3401 COM ACTIVE OUT Discrete Out OUT 12 J3402 PA ...

Page 52: ...s are compatible and may be reused If replacing a GMA 340 with a GMA 342 345 the GMA 340 330 00220 25 connector backshells can be reused However grounding the wire shields to the GMA 342 345 will be easier with the Garmin backshells in GPN 011 02302 00 The Garmin backshells also offer higher immunity to HIRF Current installations will not be required to change the backshell type but would benefit ...

Page 53: ...G GMA 342 345 NO CONNECT 29 COM 3 SPKR LOAD IN HI 23 MASQ INHIBIT IN 16 COM 3 SPKR LOAD IN LO 24 25 26 27 28 COM 1 SPKR LOAD IN HI COM 1 SPKR LOAD IN LO COM 2 SPKR LOAD IN HI COM 2 SPKR LOAD IN LO GMA 340 RETROFIT NOTES FOR INSTALLING GMA 342 345 J3401 P3401 5 4 3 2 4 3 A M G 0 4 3 A M G TEL RINGER AUDIO IN LO 43 ALERT 3 4 AUX 3 AUDIO IN LO 43 COM 3 AUDIO IN HI 3 COM 3 AUDIO IN LO 4 COM 3 MIC AUDI...

Page 54: ...LINE AND INSTALLATION DRAWINGS Figure B 1 GMA 342 345 Outline Drawing 4 34 110 3 4X 025 0 64 200 5 08 100 CSK INSIDE RACK 4 PLACES PER SIDE 1 30 33 0 60 15 2 44 11 1 3 49 88 6 65 16 5 1 28 32 4 2X 35 8 9 94 23 8 5 16 131 1 5 13 6 30 160 0 10 2 5 6 22 157 9 8 09 205 4 3 7 94 3 1 79 ...

Page 55: ... Revision 5 Page B 2 APPENDIX B OUTLINE AND INSTALLATION DRAWINGS Figure B 2 GMA 342 345 Installation Drawing GMA 342 345 BACK PLATE ALSO USED ON GMA 240 340 SUB ASSEMBLY 011 00678 00 GMA 342 345 CONNECTOR KIT ALSO USED ON GMA 35 350 011 02302 00 ...

Page 56: ...0 OPTION 2 FROM BACK OF AIRCRAFT PANEL RADIO CUTOUT RACK INSTALLED THICKNESS IS 125 INCH 3 2 mm ONLY MAXIMUM AIRCRAFT PANEL OPTION 3 FROM FRONT OF AIRCRAFT PANEL OPTION 1 STACK CUTOUT RACK INSTALLED RADIO CUTOUT RACK INSTALLED FROM FRONT OF AIRCRAFT PANEL NOTES 1 DIMENSIONS INCH mm 2 IF THE FRONT LIP OF THE MOUNTING RACK IS BEHIND THE SURFACE OF THE AIRCRAFT PANEL THE UNIT CONNECTORS MAY NOT FULLY...

Page 57: ... THAT HAVE HEADSET 14 DENOTES ACTIVE LOW 15 MONO ONLY HEADSET JACK CONNECTION DETAIL 16 USE A MINIMUM 10 WATT SPEAKER 1 UNLESS OTHERWISE INDICATED ALL SHIELDS MUST BE TERMINATED AT THE GMA END ONLY ALL SHIELDS ARE TIED TO THE SHIELD BLOCK OF THE BACKSHELL USING RING TERMINALS USE 190 00313 09 FOR GUIDANCE FOR SHIELD TERMINATIONS ALL HEADSET MICROPHONE AND MUSIC PHONE JACKS MUST BE ELECTRICALLY ISO...

Page 58: ... HI TEL MIC AUDIO OUT HI ALERT 3 AUDIO IN HI ALERT 3 4 AUX 3 AUDIO LO AUX 3 AUDIO IN HI ALERT 3 4 AUX 3 AUDIO LO ALERT 3 4 AUX 3 AUDIO LO PILOT MIC AUDIO IN LO PILOT MIC AUDIO IN HI SEE NOTE 5 SEE NOTE 12 SEE NOTE 13 SEE NOTE 13 SEE NOTE 8 SEE NOTE 8 OR JACK TO MATCH DESIRED PHONE GMA 342 345 J3401 P3401 S S S S S S S S S S S S S S S S COM ACTIVE OUT 24 Inhibit Input of Applicable Audio Source PIL...

Page 59: ...4 33 32 35 36 37 38 39 40 41 42 24 23 25 44 43 20 12 19 8 9 10 11 15 29 22 ALERT 2 AUDIO IN HI FAILSAFE WARN AUDIO IN HI PLAY KEY IN 30 COPILOT ICS KEY IN 14 RS 232 IN RS 232 OUT 17 18 MUSIC 2 IN LO MUSIC 2 IN RIGHT MUSIC 2 IN LEFT 27 26 28 Alert 2 Audio J3402 P3402 COPILOT PTT Failsafe Audio GMA 342 345 SEE NOTE 5 6 ALERT 2 FAILSAFE AUDIO LO PASSENGER ICS KEY IN 13 USE 22 AWG FOR POWER AND GROUND...

Page 60: ...8V HI 5 7 TO 14 VOLT LIGHTING BUS HI TO 14 VOLT LIGHTING BUS LO LIGHTING BUS 14V HI 28V LO 6 14 VOLT LIGHTING BUS LIGHTING BUS 14V LO 28V LO LIGHTING BUS 14V HI 28V HI 5 7 TO 28 VOLT LIGHTING BUS HI TO 28 VOLT LIGHTING BUS LO LIGHTING BUS 14V HI 28V LO 6 28 VOLT LIGHTING BUS OR P3402 IF NEITHER OF THE ABOVE LIGHTING BUS CONFIGURATIONS ARE WIRED THE UNIT WILL DEFAULT TO USE THE DISPLAY PHOTOCELL FO...

Page 61: ...T HI MONO CONNECTIONS PILOT HEADSET LO PILOT HEADSET RIGHT PILOT HEADSET LEFT 1 31 16 NC COPILOT HEADSET LO COPILOT HEADSET RIGHT COPILOT HEADSET LEFT 2 4 3 MUSIC 1 IN LO MUSIC 1 IN RIGHT MUSIC 1 IN LEFT 24 23 25 MUSIC 2 IN LO MUSIC 2 IN RIGHT MUSIC 2 IN LEFT 27 26 28 NC MONO AUDIO OUT LO MONO AUDIO SOURCE MONO AUDIO OUT HI NC PILOT HEADSET JACK NOTE 5 15 COPILOT HEADSET JACK NOTE 5 15 GMA 342 345...

Page 62: ... 5 Page C 6 APPENDIX C INTERCONNECT DRAWINGS Figure C 6 Four Passenger Headset Wiring Example Interconnect Drawing PASSENGER HEADSET PARALLEL WIRING PASS HEADSET LO PASS HEADSET RIGHT PASS HEADSET LEFT 41 40 42 NOTE 5 UP TO 4 JACKS J3401 P3401 GMA 342 345 ...

Page 63: ...SHIELD BLOCK USING RING CONNECTORS ALL SPLICES FROM LEMO JACK OCCUR AT GMA END OF HARNESS ALL SPLICES FROM LEMO JACK OCCUR AT GMA END OF HARNESS LEMO SHIELD WIRES CONNECT TO GMA SHIELD BLOCK USING RING CONNECTORS RIGHT HS NC CONNECT LEMO GROUND TO THE SHIELD BLOCK OF THE AUDIO PANEL CONNECT LEMO GROUND TO THE SHIELD BLOCK OF THE AUDIO PANEL BLK RED BLK WHT BLU WHT WHT BLU LEMO STEREO CONNECTION DI...

Page 64: ...OT APPLICABLE TO 3 COM UNITS 0 4 3 J 5 4 3 2 4 3 A M G 16 DISCRETE 1 INPUT PILOT ICS KEY 1 MARKER ANTENNA HI 31 ALERT 1 AUDIO IN HI 17 NAV 1 AUDIO IN HI 30 DISCRETE 6 INPUT COPIILOT ICS KEY 15 ALERT 2 AUDIO IN HI 14 ALERT 2 LO FAILSAFE AUDIO IN LO 44 SPEAKER AUDIO OUT HI 13 DISCRETE 3 INPUT PASS ICS KEY 42 PASS 4 MIC AUDIO IN LO 28 MUSIC 2 IN LO 43 SPEAKER AUDIO OUT LO 29 FAILSAFE WARN AUDIO IN HI...

Page 65: ...TENNA HI 31 ALERT 1 AUDIO IN HI 17 NAV 1 AUDIO IN HI 30 DISCRETE 6 INPUT COPIILOT ICS KEY 15 ALERT 2 AUDIO IN HI 14 ALERT 2 LO FAILSAFE AUDIO IN LO 44 SPEAKER AUDIO OUT HI 13 DISCRETE 3 INPUT PASS ICS KEY 42 PASS 4 MIC AUDIO IN LO 28 MUSIC 2 IN LO 43 SPEAKER AUDIO OUT LO 29 FAILSAFE WARN AUDIO IN HI 27 MUSIC 2 IN RIGHT 41 PASS 4 MIC AUDIO IN HI 12 DISCRETE D OUT PA MUTE OUT 11 POWER GROUND 10 POWE...

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