Document # 540048, Rev A, 03/2002
Page 9 of 12
3.8
Pinout Assignment Descriptions
Pinout assignment for the AI-ST100X is as follows:
3.9 Post-Installation
Test
3.9.1 28 VDC power has been properly connected to the unit.
3.9.2 Load the audio source with selected material. With the aircraft and
audio power ‘ON’, apply power to the unit.
3.9.3 Verify that the selected material may be heard through the
headphone and/or speaker system.
3.9.4 Audio level adjustments are accomplished via the gain
potentiometers on the rear of the unit. To increase amplification,
rotate the potentiometers in a clockwise direction; to decrease
amplification, rotate in a counter-clockwise direction.
P1
P2
Pin #
Description
Pin #
Description
1
R+ Audio Input
A
+28 VDC Power Input (Amp)
2 R-
Audio
Input
B Ground
3
L+ Audio Input
C
R+ Stereo Speaker Output
4
L- Audio Input
D
R- Stereo Speaker Output
5
Remote Turn On Input (+28 VDC active)
E
L+ Stereo Speaker Output
6
+28 VDC Input for +12 VDC supply
F
L- Stereo Speaker Output
7
+12 VDC Output (1 amp)
G
Reserved
8
+12 VDC Output (1 amp)
H
Reserved
9
+12 VDC Output (1 amp)
J
Reserved
10 Reserved
K Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved
