IBASE MI912 User Manual
Page 22
INSTALLATIONS
18
MI912 User’s Manual
ATX1: ATX Power Supply Connector
11 1
20 10
Signal Name
Pin #
Pin #
Signal Name
3.3V
11
1
3.3V
-12V
12
2
3.3V
Ground
13
3
Ground
PS-ON
14
4
+5V
Ground
15
5
Ground
Ground
16
6
+5V
Ground
17
7
Ground
-5V
18
8
Power good
+5V
19
9
5VSB
+5V
20
10
+12V
J1 (F_PANEL): System Function Connector
J1 provides connectors for system indicators that provide light indication
of the computer activities and switches to change the computer status. J1
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