Garmin G900X - Serial Data

Page A-66 G900X/G950 Installation and Maintenance Manual – Pinouts
Revision D 190-00719-00
A.6.4 Serial Data
A.6.4.1 RS-232
Pin Name Connector Pin I/O
GPS 1 RS-232 IN P771 11 In
GPS 2 RS-232 IN P771 6 In
SPARE RS-232 IN 1 P771 8 In
GPS 1 RS-232 OUT P771 26 Out
GPS 2 RS-232 OUT P771 21 Out
SPARE RS-232 OUT 1 P771 23 Out
MAGNETOMETER RS-232 OUT P771 10 Out
GPS 1 RS-232 IN P441 8 In
The RS-232 outputs conform to EIA/TIA-232C with an output voltage swing of at least ±5 V when
driving a standard RS-232 load.
A.6.4.2 RS-485
Pin Name Connector Pin I/O
MAGNETOMETER RS-485 IN B P771 39 In
MAGNETOMETER RS-485 IN A P771 25 In
MAGNETOMETER GROUND P771 40 --
RS-485 OUT A P441 4 Out
RS-485 OUT B P441 2 Out
A.6.4.3 ARINC 429
Pin Name Connector Pin I/O
ARINC 429 OUT 3 A (CDU 1, high-speed) P771 12 Out
ARINC 429 OUT 3 A (CDU 2, high-speed) P771 33 Out
ARINC 429 OUT 3 B (CDU 1, high-speed) P771 27 Out
ARINC 429 OUT 3 B (CDU 2, high-speed) P771 19 Out
SIGNAL GROUND (CDU 1) P771 42 --
ARINC 429 OUT 1 A (GIA 1, high-speed) P771 14 Out
ARINC 429 OUT 2 A (GIA 2, high-speed) P771 13 Out
ARINC 429 OUT 1 B (GIA 1, high-speed) P771 29 Out
ARINC 429 OUT 2 B (GIA 2, high-speed) P771 28 Out
SIGNAL GROUND (AFCS) P771 43 --
ARINC 429 IN 1 A (AIR DATA, low-speed) P771 15 In
ARINC 429 IN 1 B (AIR DATA, low-speed) P771 30 In
SIGNAL GROUND (AIR DATA) P771 44 --
SIGNAL GROUND (GPS 1) P771 41 --
SIGNAL GROUND (GPS 2) P771 35 --
SIGNAL GROUND P771 37 --