Garmin GMA 342 Installation Manual

Also see for GMA 345: Pilot's guide

190-01878-02 GMA 342/345 Installation ManualRevision 5 Page C-2APPENDIX C INTERCONNECT DRAWINGSFigure C-2 J3401 Connector Example Interconnect DrawingCOM 1 AUDIO IN HICOM 1 AUDIO LOCOM 2 AUDIO IN HICOM 2 AUDIO LOTEL AUDIO IN HITEL AUDIO LOPASS HEADSET LOPASS HEADSET RIGHTPASS HEADSET LEFTPILOT MIC KEY* INCOM1TransceiverCOM2TransceiverTELSYSTEMNAV1 RadioNAV2 RadioAUX 1 SourceAlert 1 AudioAUX 2 SourceAlert 4 AudioPILOT PTT91011121314153034517181920212278313244353433414042 (up to 4 jacks,wired in parallel)COM 1 MIC AUDIO OUT HICOM 1 MIC KEY* OUTCOM 2 MIC AUDIO OUT HICOM 2 MIC KEY* OUTAlert 3 Audio2943AUX 3 Source23SEE NOTE 8NO CONNECT PINS 6,25,26,27,28SEE NOTE 5,6NAV 1 AUDIO IN HINAV 1 AUDIO IN LONAV 2 AUDIO IN HINAV 2 AUDIO IN LOAUX 1 AUDIO IN HIAUX 1 AUDIO IN LOAUX 2 AUDIO IN HIAUX 2 AUDIO IN LOALERT 1 AUDIO IN HIALERT 1 AUDIO IN LOALERT 4 AUDIO IN HITEL MIC AUDIO OUT HIALERT 3 AUDIO IN HIALERT 3, 4, AUX 3 AUDIO LOAUX 3 AUDIO IN HIALERT 3, 4, AUX 3 AUDIO LOALERT 3, 4, AUX 3 AUDIO LOPILOT MIC AUDIO IN LOPILOT MIC AUDIO IN HISEE NOTE 5SEE NOTE 12SEE NOTE 13SEE NOTE 13SEE NOTE 8SEE NOTE 8 (OR JACK TO MATCHDESIRED PHONE)GMA 342/345 J3401 P3401SSSSSSSSSSSSSSSSCOM ACTIVE* OUT 24Inhibit Input ofApplicableAudio SourcePILOT ICS KEY* IN 16 SEE NOTE 14OUTER MARKER LAMP OUTINNER MARKER LAMP OUT 3637MIDDLE MARKER LAMP OUT 38EXT INDICATORMIDDLE MARKER SENSE OUT 39SHIELD BLOCK GROUNDFLIGHT CONTROLSYSTEMS12MARKER ANTENNA HIGHMARKER ANTENNA LOMARKER BEACON ANTENNASEE NOTE 20NOTE: Pressing theAUX1 button selects/deselects the AUX1and AUX3 receiversALTERNATEPTT CONNECTIONPILOT PTTSEE NOTES 5, 6COM 3 AUDIO IN HICOM 3 AUDIO LO COM3Transceiver3456COM 3 MIC AUDIO OUT HICOM 3 MIC KEY* OUT SEE NOTE 13SEE NOTE 8SSTEl AUDIO IN HITEL AUDIO LO TELSYSTEM252627TEL MIC AUDIO OUT HISEE NOTE 12SEE NOTE 8 (OR JACK TO MATCHDESIRED PHONE)SS28TEL MIC AUDIO OUT LOGMA 345 3-COM (011-03520-20) ONLYCOM 3 AND TEL WIRING DIFFERENCES