Serial Data - Garmin G900X Installation And Maintenance Manual

A.6.4

Serial Data

A.6.4.1 RS-232
Pin Name
GPS 1 RS-232 IN
GPS 2 RS-232 IN
SPARE RS-232 IN 1
GPS 1 RS-232 OUT
GPS 2 RS-232 OUT
SPARE RS-232 OUT 1
MAGNETOMETER RS-232 OUT
GPS 1 RS-232 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
MAGNETOMETER RS-485 IN B
MAGNETOMETER RS-485 IN A
MAGNETOMETER GROUND
RS-485 OUT A
RS-485 OUT B
A.6.4.3 ARINC 429
Pin Name
ARINC 429 OUT 3 A (CDU 1, high-speed)
ARINC 429 OUT 3 A (CDU 2, high-speed)
ARINC 429 OUT 3 B (CDU 1, high-speed)
ARINC 429 OUT 3 B (CDU 2, high-speed)
SIGNAL GROUND (CDU 1)
ARINC 429 OUT 1 A (GIA 1, high-speed)
ARINC 429 OUT 2 A (GIA 2, high-speed)
ARINC 429 OUT 1 B (GIA 1, high-speed)
ARINC 429 OUT 2 B (GIA 2, high-speed)
SIGNAL GROUND (AFCS)
ARINC 429 IN 1 A (AIR DATA, low-speed)
ARINC 429 IN 1 B (AIR DATA, low-speed)
SIGNAL GROUND (AIR DATA)
SIGNAL GROUND (GPS 1)
SIGNAL GROUND (GPS 2)
SIGNAL GROUND
Page A-66
Revision D
Connector
Connector
Connector
G900X/G950 Installation and Maintenance Manual – Pinouts
Pin
P771 11
P771 6
P771 8
P771 26
P771 21
P771 23
P771 10
P441 8
Pin
P771 39
P771 25
P771 40
P441 4
P441 2
Pin
P771 12
P771 33
P771 27
P771 19
P771 42
P771 14
P771 13
P771 29
P771 28
P771 43
P771 15
P771 30
P771 44
P771 41
P771 35
P771 37
190-00719-00
I/O
In
In
In
Out
Out
Out
Out
In
I/O
In
In
--
Out
Out
I/O
Out
Out
Out
Out
--
Out
Out
Out
Out
--
In
In
--
--
--
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