© National Instruments
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B-11
Front Accessible Audio Header
A 10-pin audio header is provided on the motherboard. Connect an audio cable to this header for
audio playback.
SPDIF_OUT
The SPDIF Out is header used for digital audio. You will also need the appropriate cable to use
this feature.
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on the motherboard. Attach the appropriate cable
from the chassis to the header to inform you when the chassis has been opened.
Table B-14.
Audio Header Pin Definitions
Pin
Definition
Pin
Definition
1
Microphone_Left
6
Ground
2
Audio_Ground
7
Jack_Detect
3
Microphone_Right
8
Key
4
Audio_Detect
9
Line_2_Left
5
Line_2_Right
10
Ground
Table B-15.
SPDIF_Out Pin Definitions
Pin
Definition
1
SPDIF Out
2
Ground
Table B-16.
Chassis Intrusion Pin Definitions
Pin
Definition
1
Intrusion Input
2
Ground