IBASE MB941 User Manual
Page 23
INSTALLATIONS
MB941 User’s Manual
19
J7: Audio Front Header
Signal Name
Pin #
Pin #
Signal Name
MIC2_L
1
2
Ground
MIC2_R
3
4
Presence#
Line2_L
5
6
MIC2_ID
Sense
7
8
NC
Line2_R
9
10
Line2_ID
J8: System Function Connector
J8 provides connectors for system indicators that provide light indication
of the computer activities and switches to change the computer status. J8
is a 20-pin header that provides interfaces for the following functions.
Hard Disk Drive LED
Reset Switch
Not Defined
ATX Power On Switch
Not Defined
Power LED
Speaker
Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio
tone generation. An 8-ohm speaker is recommended.
Pin #
Signal Name
1
Speaker out
2
No connect
3
Ground
4
+5V