Garmin GTN 635 Installation Manual page 7

3.4.2 COM Antenna Location ....................................................................................................... 3-7
3.4.3 VOR/LOC Antenna Location ............................................................................................... 3-9
3.4.4 Glideslope Antenna Location ............................................................................................... 3-9
3.4.5 Electrical Bonding ................................................................................................................ 3-9
3.4.6 Interference of GPS .............................................................................................................. 3-9
3.5 GTN 625/635/650 Mounting Considerations ......................................................................... 3-10
3.6 Cabling and Wiring Considerations ....................................................................................... 3-10
3.7 Air Circulation and Cooling ................................................................................................... 3-11
3.8 Compass Safe Distance .......................................................................................................... 3-11
4. INSTALLATION PROCEDURES .................................................................................................. 4-1
4.1 Unit and Accessories ................................................................................................................ 4-1
4.2 Optional Accessories ................................................................................................................ 4-2
4.2.1 GPS Antenna Options .......................................................................................................... 4-2
4.3 Database Options ...................................................................................................................... 4-3
4.4 Miscellaneous Options ............................................................................................................. 4-3
4.5 Optional Reference Material .................................................................................................... 4-3
4.6 Enablement Cards ..................................................................................................................... 4-3
4.7 Installation Materials Required but not Supplied ..................................................................... 4-4
4.7.1 Accessories Required but not Supplied ................................................................................ 4-4
4.7.2 Materials Required but not Supplied (New Installations Only) ........................................... 4-4
4.7.3 Optional Annunciation Panels .............................................................................................. 4-5
4.8 Special Tools Required ............................................................................................................. 4-5
4.9 Coaxial Cable Installation ........................................................................................................ 4-6
4.10 Equipment Mounting ................................................................................................................ 4-8
4.10.1 Rack Installation ................................................................................................................... 4-8
4.10.2 GTN Unit Insertion and Removal ........................................................................................ 4-8
4.10.3 Unit Replacement ................................................................................................................. 4-8
4.11 Antenna Installation and Connections ...................................................................................... 4-9
4.11.1 GPS Antenna ........................................................................................................................ 4-9
4.11.2 COM Antenna (GTN 650 Only) ........................................................................................ 4-10
4.11.3 NAV Antenna (GTN 650 Only) ......................................................................................... 4-10
5. CONNECTOR PINOUT INFORMATION ..................................................................................... 5-1
5.1 Pin Function List ...................................................................................................................... 5-1
P1001 Main Connector - Main Board ................................................................................. 5-1
5.1.1
5.1.2 P1002 Connector .................................................................................................................. 5-3
5.1.3 P1003 COM Connector ........................................................................................................ 5-4
5.1.4 P1004 NAV Connector ........................................................................................................ 5-5
5.2 Power, Lighting, And Antennas ............................................................................................... 5-7
5.2.1 Power.................................................................................................................................... 5-7
5.2.2 Lighting Bus ......................................................................................................................... 5-7
5.2.3 Antennas ............................................................................................................................... 5-8
5.2.4 Serial Data ............................................................................................................................ 5-8
5.2.5 Ethernet (HSDB) ................................................................................................................ 5-12
5.2.6 Main Audio Output ............................................................................................................ 5-12
5.2.7 Main Indicator .................................................................................................................... 5-12
5.2.8 OBS .................................................................................................................................... 5-13
5.2.9 Discrete Inputs ................................................................................................................... 5-14
5.2.10 Discrete Outputs ................................................................................................................. 5-15
5.2.11 TIME MARK OUT ............................................................................................................ 5-18
5.2.12 COM Audio (GTN 650 Only) ............................................................................................ 5-19
5.2.13 COM Discrete Inputs (GTN 650 Only) .............................................................................. 5-20
5.2.14 VOR/ILS Audio (GTN 650 Only) ..................................................................................... 5-20
GTN 625/635/650 TSO Installation Manual
190-01004-02
Page iii
Rev. C