z
CN2: 5-pin ATX Power In Connector
PIN Description
1
VCC
1
5
2
5VSB
3
+12V
4
PS_ON
5
GND
z
FN1, FN2: FAN Power In Connector
PIN Description
1
FAN Speed
2
+12V
3
GND
3.20 Keyboard Connectors
The 3301320 offers two possibilities for keyboard connections. The
connections are via
CN18
for an external PS/2 type keyboard or via
CN1
for an internal 5-pin cable converter to an AT keyboard.
z
CN1: 5-pin Keyboard Connector
PIN Description
1
Keyboard Clock
2
Keyboard Data
3
N/C
4
GND
5
5VSB
1
2
3
4
5
21
