Garmin GNC 300 Installation Manual Download Page 1

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Av. Kit Install. Manual

190-00067-02 Rev. J

Page 1

GNC 300

INSTALLATION MANUAL

GARMIN INTERNATIONAL, INC.

PART NUMBER: 190-00067-02

1200 E. 151st STREET

REVISION J, 30 MARCH 1998

OLATHE, KANSAS 66062-3426

Summary of Contents for GNC 300

Page 1: ...Av Kit Install Manual 190 00067 02 Rev J Page 1 GNC 300 INSTALLATION MANUAL GARMIN INTERNATIONAL INC PART NUMBER 190 00067 02 1200 E 151st STREET REVISION J 30 MARCH 1998 OLATHE KANSAS 66062 3426 ...

Page 2: ...1st Street Olathe KS 66062 U S A REVISION RECORD ECO Rev Date of Rev Description FAA Approval Initial Rev A 01 Oct 1995 Initial release 5074 Rev B 05 Jan 1996 Clarify Mid Continent annun units GA 56 Mod 1 5219 Rev C 29 Jan 1996 Add MCI options 5827 Rev D 18 June 1996 Add STC Chg to barrel type crimp connectors 6042 Rev E 23 Aug 1996 Chg Fig 1 3A to agree with MCI s 6274 Rev F 22 Oct 1996 Correct b...

Page 3: ...OMM INTERFERENCE OF GPS 2 1 6 COMM ANTENNA INSTALLATION CONSIDERATIONS 2 2 RACK CONSIDERATIONS 2 2 1 ACCESSIBILITY 2 3 CABLING AND WIRING 2 4 COOLING AIR 2 5 MINIMUM INSTALLATION REQUIREMENTS 2 6 EXTERNAL ALTITUDE INPUT SECTION 3 INSTALLATION PROCEDURE 3 1 INSTALLATION ACCESSORIES 3 2 ANTENNA INSTALLATION 3 3 CABLE INSTALLATION 3 4 RACK INSTALLATION 3 5 GNC 300 INSTALLATION AND REMOVAL 3 6 COMM AN...

Page 4: ... HD DSUB 1 3 INTERCONNECT SCHEMATIC 1 4 INTERCONNECT SCHEMATIC NOTES 2 1 GPS ANTENNA INSTALLATION CONSIDERATIONS 2 2 GNC 300 INSTALLATION CONSIDERATIONS 2 3 SWITCH ANNUNCIATOR LAYOUT 3 1 STUD MOUNT GA 56 INSTALLATION 3 2 FLANGE MOUNT GA 56 INSTALLATION 3 3 COAX CABLE INSTALLATION 3 4 AVIATION RACK DIMENSIONS 3 5 AVIATION RACK INSTALLATION ...

Page 5: ... article either on or within a specific type or class of aircraft to determine that the aircraft installation conditions are within the TSO standards The article may be installed only if further evaluation by the applicant documents an acceptable installation and is approved by the Administrator 1 2 1 PHYSICAL CHARACTERISTICS Width 6 25 inches Height 2 inches Depth 5 65 inches GNC 300 Weight 2 4 l...

Page 6: ... equivalent Message annunciator Output capable of driving negative logic message Pin 20 annunciators by sinking up to 500mA RS232 chan 1 output data Output capable of driving devices as listed in Section 4 Pin 24 Conforms to the EIA specification RS 232C RS232 chan 2 output data Output capable of driving devices as listed in Section 4 Pin 19 Conforms to the EIA specification RS 232C RS232 chan 1 i...

Page 7: ...26 PIN CONNECTOR J102 MIC Audio Hi and Lo Input requiring 275mV RMS into 470 ohm load Pins 2 and 3 Standard carbon or dynamic MIC containing transistorized pre amp MIC Key Input when grounded keys the transmitter Pin4 COMM Audio Hi and Lo Output capable of driving a 500 ohm load with Pins 5 and 6 100mW MIC Intercomm Input requiring 125mV RMS into 470 ohm load Pin 8 Standard carbon or dynamic MIC c...

Page 8: ...cation CAUTION THE VHF TRANSMITTER IN THIS EQUIPMENT IS GUARANTEED TO MEET FEDERAL COMMUNICATIONS COMMISSION ACCEPTANCE OVER THE OPER ATING TEMPERATURE RANGE MODIFICATIONS NOT EXPRESSLY APPROVED BY GARMIN COULD VOID THE LICENCES AUTHORITY TO OPERATE THE EQUIPMENT SECTION 2 INSTALLATION CONSIDERATIONS Careful planning and consideration of the suggestions in this section are required to achieve the ...

Page 9: ...ng path between the GPS antenna and the aircraft structure Follow the manufacturers instructions for the COMM antenna 2 1 4 ANTENNA LIMITATIONS GARMIN S GA 56 Antennas are recommended for installations where the airspeed of the aircraft will be subsonic GARMIN s GA 56 Mod 1 or later must be used See the COMM antenna specification for its limitations 2 1 5 VHF COMM INTERFERENCE OF GPS On many panel...

Page 10: ...n is optimal Figure 2 2 illustrates a typical aviation rack installation 2 3 CABLING AND WIRING The recommended antenna cable type for both antennas is M17 155 0001 RG 58A U per MIL C 17 Maximum allowable length for the GPS antenna using this cable type is 40 feet Other cable types with 50 ohms nominal impedance and longer lengths can be used for the GPS antenna provided the installer insures that...

Page 11: ... analog resolver or from an EFIS via the ARINC 429 bus or RS 422 bus HSI CDI Device This device displays Nav Flag Left Right and To From This can be displayed on the EFIS or HSI External Annunciators and Switches NAV Annunciator GPS Annunciator NAV GPS Switch HOLD Annunciator AUTO Annunciator GPS Sequence Switch Approach Actv Annunciator not required for A2 Approach Arm Annunciator not required fo...

Page 12: ...antenna cable or it can be fabricated by the installer from materials meeting the requirements of paragraph 2 3 011 00154 00 MOUNTING RACK WITHOUT CONNECTORS Note A mounting rack is required for approved installations The following hardware is required for installa tion of the mounting rack but is not provided 6 32 Flat Head Screw 4 ea 6 32 Self locking Nut 4 ea 011 00313 00 CONNECTOR J1 and J2 Ki...

Page 13: ... AC 43 13 2A C Seal the antenna and gasket to the fuselage using a good quality electrical grade sealant Use caution to insure that the antenna connector is not contaminated with sealant Insure that the mounting screws are fully tightened and that the antenna base is well seated against the gasket CAUTION Do not use construction grade RTV sealant or sealants containing acetic acid These sealants m...

Page 14: ...ews are inserted from the inside through the holes in the sides of the rack see Figure 3 5 Contacts Standard Density Connectors Hi Dens Connector 37 socket connector J1 on unit 9 pin connector on battery pack 26 pin connector J2 on unit 20 24 AWG socket contact 18 AWG socket contact 20 24 AWG pin contact 18 AWG pin contact 22 28 AWG pin contact Garmin p n 336 00022 00 336 00023 00 336 00024 00 336...

Page 15: ... occur Do this by first removing any data cards and then turning the unit on Press enter in response to Select operating mode Normal ok Press enter in response to No Jeppesen database rte prx limited to user wpts ok After the satellite status page is displayed for 5 seconds the unit may be turned off Proceed with the following steps 4 1 TEST MODE OPERATIONS With power applied to the aviation rack ...

Page 16: ...hting 4 2 2 I O CHANNEL 1 Select the I O CHANNEL 1 Test Page Change the selectable input and output to match that of the installed equipment The available options are Input Field Description off No units connected to Channel 1 input icarus alt Serial altitude received from Icarus Model 3000 Mode C Serializer shadin alt Serial altitude received from Shadin 9000T Serializer System Non TSO d Shadin 9...

Page 17: ...nge the selectable input and output to match that of the installed equipment The available options are Input Field Description off No units connected to the RS 422 input Collins PL2 DSP Collins Pro Line 2 Display Select Panel connected Output Field Description off NO AVAILABLE SELECTIONS 4 2 4 ARINC 429 CHANNEL Select the ARINC 429 Channel Test Page Change the selectable output to match that of th...

Page 18: ... error 121 Horizontal command to autopilot 251 Distance to go 252 Time to go 310 Present position latitude 311 Present position longitude 312 Ground speed 313 Ground track 314 True heading 320 Magnetic heading 147 Magnetic variation 261 GPS navigation mode 275 Navigation status 326 Lateral scale factor 351 Distance to destination 352 Time to destination Flight plan data Label octal Description 074...

Page 19: ...g an extremely accurate input source input 150 to the GNC 300 The input course will indicate close to 150 and a Calib field will appear in the lower right corner Selecting the Calib field will calibrate the GNC 300 to match the input source Verify OBS operation by checking that the bearing displayed on the GNC 300 is within 2 of the selected bearing Do this for every multiple of 30 around the OBS ...

Page 20: ...y data with SDI 0 or SDI 1 is used Lnav 2 Only data with SDI 0 or SDI 2 is used common Only data with SDI 0 is used NOTE SDI 0 is an all call Fuel av gas Using Aviation gas 5 8 lbs gal Jet A Using Jet A Jet A 1 fuel 6 7 lbs gal Jet B Using Jet B JP 4 fuel 6 5 lbs gal NOTE The Fuel option is used to designate the type of fuel used so that the correct fuel density will be used in calculations 4 2 9 ...

Page 21: ...r of characters that the GNC 300 transmits RMC 70 characters GGA 72 characters GSA 57 characters GSV 140 characters 70 characters x 2 sentences RMB 70 characters BOD 35 characters WPL 38 characters PGRME 35 characters GARMIN proprietary accuracy error sentence that is not a part of the NMEA 0183 standard 4 3 GROUND TEST The GNC 300 ground test procedure incorporates a series of display pages to te...

Page 22: ...enables the charger if the External Power is the current source and its voltage is high enough When in Auto mode auto status will be either on or off reflecting whether the charger is enabled or disabled The next line reports the status of the internal memory battery as shown below Mem Bat ok low Note that the TX field will light on the display but the transmitter will not actually transmit when t...

Page 23: ...CH TEST Select the External COM Switches Page For each of the following installed remote switches perform the following Press Remote Enter and verify the Rmt ent field changes from off to on Press PTT and verify the PTT field changes from off to on Press Remote Transfer and verify the Rmt xfr field changes from off to on Next select the External Switches Page For each of the following installed re...

Page 24: ...faces as appropriate OBI Data VALID Ensure that the OBI indicates the proper value INVALID Ensure the OBI is invalid OBI Value Ensure that the OBI displays the value entered when the VALID option is selected NOTE The 3 lines that make up the OBI interface may be toggled individually This may be done from the Value field Cycle this field to the desired line either CLOCK DATA or SYNC and toggle the ...

Page 25: ...t 50 nautical miles Contact a ground station close in Press the squelch disable button to defeat the automatic squelch feature and listen for any unusual electrical noise which would reduce the COMM receiver sensitivity by increasing the squelch threshold If possible verify the communications capability on both the high and low end of the VHF COMM band SECTION 5 CERTIFICATION The GNC 300 is certif...

Page 26: ...Av Kit Install Manual 190 00067 02 Rev J Page 26 FIGURE 1 1 PINOUT DEFINITION 37 PIN DSUB ...

Page 27: ...Av Kit Install Manual 190 00067 02 Rev J Page 27 FIGURE 1 2 PINOUT DEFINITION 26 PIN HD DSUB ...

Page 28: ...Av Kit Install Manual 190 00067 02 Rev J Page 28 FIGURE 1 3A INTERCONNECT SCHEMATIC ...

Page 29: ...Av Kit Install Manual 190 00067 02 Rev J Page 29 FIGURE 1 3B INTERCONNECT SCHEMATIC ...

Page 30: ...Av Kit Install Manual 190 00067 02 Rev J Page 30 FIGURE 1 3C INTERCONNECT SCHEMATIC ...

Page 31: ...Av Kit Install Manual 190 00067 02 Rev J Page 31 FIGURE 1 4 INTERCONNECT SCHEMATIC NOTES ...

Page 32: ...compass safe distance FIG 2 2 GNC 300 INSTALLATION CONSIDERATIONS FIG 2 1 GPS ANTENNA INSTALLATION CONSIDERATIONS Antenna masked by vertical fin T tail or dorsal fin Antenna must be on top of aircraft OK RTE SQ NRST D ACTV STBY NAV WPT MSG GARMIN GNC 250 CRSR CLR ENT ...

Page 33: ...Av Kit Install Manual 190 00067 02 Rev J Page 33 FIGURE 2 3 SWITCH ANNUNCIATOR LAYOUT ...

Page 34: ...Av Kit Install Manual 190 00067 02 Rev J Page 34 FIG 3 1 STUD MOUNT GA 56 ANTENNA INSTALLATION ...

Page 35: ...Av Kit Install Manual 190 00067 02 Rev J Page 35 FIGURE 3 2 FLANGE MOUNT GA 56 ANTENNA INSTALLATION ...

Page 36: ...Av Kit Install Manual 190 00067 02 Rev J Page 36 FIGURE 3 3 COAX CABLE INSTALLATION ...

Page 37: ...Av Kit Install Manual 190 00067 02 Rev J Page 37 FIGURE 3 4 AVIATION RACK DIMENSIONS ...

Page 38: ...Av Kit Install Manual 190 00067 02 Rev J Page 38 FIGURE 3 5 AVIATION RACK INSTALLATION ...

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Page 43: ...ype used will vary with the installation When working with the stamped crimp type contacts the following tools should be used Tools 37 and 9 position connectors 26 position connector supplier Crimp Tool Extraction Tool Crimp Tool Extraction Tool Amp 58448 2 91067 22 90430 1 91285 1 ITT Cannon 995 2000 000 980 0008 124 995 2000 022 980 00004 804 Cinch HTD 544 CIET 20 HDB HTD 544 HTD 520 Part number...

Page 44: ... battery and the pin number assignments are different however the individual contact locations are unchanged The following table shows the pin assignments for the two different types of connectors Serial Number below 33050055 33050055 and up remote batt pins sockets mating plug sockets pins function contact number contact number battery 1 5 battery 2 4 charge enable 3 3 aircraft power 4 2 aircraft...

Page 45: ... PERMISSION Consistent with N8110 69 or Order 8110 4 Aviation Authority approved installers are hereby granted permission to use STC SA00372WI data to modify aircraft Av Kit Install Manual 190 00067 02 Rev J Page 45 ...

Page 46: ...Av Kit Install Manual 190 00067 02 Rev J Page 46 ...

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