Connectors
CONNECTOR
DESCRIPTION
ISA2/PCI1 & ISA3/PCI2
PICMG connectors
PCI3-PCI8
32-BIT PCI BUS connectors
ISA1
16-BIT ISA BUS connectors
PW1
P8/P9 power connector
PW2 ATX
power
connector
KB1
AT keyboard connector
CN1
DC power outlet
CN2
ATX P/S control connector
CN3,CN5 Fan
connector
CN4
Power good signal output
CN6,CN7
Extend keyboard connector
Pin Assignment
ATX(PW2)
PIN NAME PIN NAME
1 +3.3V
11 +3.3V
2 +3.3V
12 -12V
3 GND
13 GND
4 +5V
14
PS_ON
5 GND
15 GND
6 +5V
16 GND
7 GND
17 GND
8
PWR OK
18 -5V
9 STB5V
19 +5V
10 +12V 20 +5V
P8/P9(PW1)
PIN NAME
1 PWR
OK
2 +5V
3 +12V
4 -12V
5 GND
6 GND
7 GND
8 GND
9 -5V
10 +5V
11 +5V
12 +5V
Power Extension(CN1)
PIN
NAME
1 +5V
2 -5V
3 -12V
4 +12V
5 GND
ATX control connector(CN2)
PIN NAME
1 STB5V
2 PS_ON
3 GND
Power Good output(CN4)
PIN NAME
1 Power
Good
2 GND
K/B ONNECTOR(KB1)
PIN
NAME
1 K/B
CLK
2 K/B
DATA
3 NC
4 GND
5 +5V
4
PX-8S-RS User’s Manual
Fan connector(CN3,CN5)
PIN NAME
1 NC
2 +12V
3 GND
Ext. K/B(CN6,CN7)
PIN
NAME
1 K/B
CLK
2 K/B
DATA
3 NC
4 GND
5 +5V
