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2-6 Connectors, Headers
2-6-1 Connectors
Power Connector (20-pin block) : ATX _ POWER
(1)
ATX Power Supply connector. This is a new defined 20-pin connector that
usually comes with ATX case. The ATX Power Supply allows to use soft power
on momentary switch that connect from the front panel switch to 2-pins Power
On jumper pole on the motherboard. When the power switch on the back of the
ATX power supply turned on, the full power will not come into the system board
until the front panel switch is momentarily pressed. Press this switch again will
turn off the power to the system board.
(2)
PS/2 Mouse & PS/2 Keyboard Connector: PS2 KB/MOUSE
The connectors for PS/2 keyboard and PS/2 Mouse.
(3)
USB Port connector: USB1
The connectors are 4-pin connector that connect USB devices to the system board.
Pin 1
PIN
ROW2
1
3.3V
2
-12V
3
GND
4
Soft Power On
5
GND
6
GND
7
GND
8
-5V
9
+5V
10
+5V
PS/2 Mouse
PS/2 Keyboard
15
ROW1
3.3V
3.3V
GND
5V
GND
5V
GND
Power OK
+5V (for Soft Logic)
+12V
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