Page A-60
G900X/G950 Installation and Maintenance Manual – Pinouts
Revision D
190-00719-00
A.5.2 Power
Pin Name
Connector
Pin
I/O
AIRCRAFT POWER 1
P741
55
In
AIRCRAFT POWER 2
P741
58 In
OAT PROBE POWER OUT
P741
2 Out
POWER GROUND
P741
17 --
POWER GROUND
P741
18 --
POWER GROUND
P741
19 --
POWER GROUND
P741
20 --
CONFIG MODULE POWER OUT
P741
21 Out
The power-input pins accept 14/28 VDC. AIRCRAFT POWER 2 is for connecting to an alternate power
source, such as on aircraft with two electrical buses. AIRCRAFT POWER 1 (Pin 55) and AIRCRAFT
POWER 2 (Pin 58) are internally “diode ORed” to provide power redundancy.
A.5.3 Serial
Data
A.5.3.1 RS-232 input/Output
Pin Name
Connector
Pin
I/O
RS-232 IN1
P741
10
In
RS-232 OUT 1
P741
11 Out
RS-232 IN 2
P741
13 In
RS-232 OUT 2
P741
14 Out
SIGNAL GROUND
P741
12 --
SIGNAL GROUND
P741
15 --
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.