PX-20S2-RS-R40
Feb. 21, 2008
20-Slot Backplane with 17 PCI and 3 ISA Bus
User Manual Ver. 4.0
1. PW3: ATX Power Connector
Pin Description Pin Description
1
2
3
4
5
6
7
8
9
10
+3.3Vdc
+3.3Vdc
GND
+5Vdc
GND
+5Vdc
GND
PWR-OK
+5VSB
+12Vdc
11
12
13
14
15
16
17
18
19
20
+3.3Vdc
-12Vdc
GND
PS-ON
GND
GND
GND
-5Vdc
+5Vdc
+5Vdc
２０
2. PW1: AT Power Connector
3. CN9, CN10: Voltage Connector
1 2 3 4 5 6 7 8 9 10 11 12
▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓ ▓
Pin Description Pin Description
1 PWRGD 7 GND
2 +5V 8 GND
3 +12V 9 -5V
4 -12V 10 +5V
5 GND 11 +5V
6 GND 12 +5V
Pin Description
1 +3.3V
2 GND
１１
１１０
1 2
▓ ●
1
4. CN12: Backplane to Mainboard Connector
Pin Description
1 5VSB
2 PSON#
3 GND
123
5. CN8, CN11: Fan Connector
Pin Description
1 NC
2 +12V
3 GND
6. CN1, CN7: Voltage Connector
Pin Description
1 +5V
2 -5V
3 -12V
1 2 3 4 5
▓ ▓ ▓ ▓ ▓
4 +12V
5 GND
7. PW2: Power Connector
Pin Description
1 +5V
2 +5V
123
3 +5V
4 GND
5 GND
6 GND
1 2 3 4 5 6
▓
●
● ● ● ●
2
8. PCI routing table:
PCI SLOT PCI1 PCI2 PCI3 PCI4
IDSEL
REQ#
GNT# 1_GNT3# 1_GNT2# 1_GNT1# 1_GNT0
INTA
INTB B A D C
INTC
INTD D C B A
PCI SLOT PCI5 PCI6 PCI7 PCI8
IDSEL
REQ# 2_REQ3# 2_REQ2# 2_REQ1# 2_REQ0
GNT#
INTA B A D C
INTB
INTC D C B A
1_REQ3# 1_REQ2# 1_REQ1# 1_REQ0
A D C B
C B A D
1_AD23
2_AD23
2_GNT3#
C
1_AD22
2_AD22
2_GNT2#
B
1_AD21
2_AD21
2_GNT1#
A
1_AD20
2_AD20
2_GNT0
D
INTD
PCI SLOT
IDSEL 3_AD23 3_AD22 3_AD21 3_AD20
REQ#
GNT# 3_GNT3# 3_GNT2# 3_GNT1# 3_GNT0
INTA
INTB D C B A
INTC
INTD B A D C
9. Notice:
a. Recommend to use 6mm width spacer to install
PCI9 PCI 10 PCI 11 PCI 12
3_REQ3# 3_REQ2# 3_REQ1# 3_REQ0
C B A D
A
A
D
D
C
C
B
B
b. Torsion must less than 6lb-i nch
3
10. Dimension:
4
Loading...