IEI Integration PX-20S3-RS User Manual

PX-20S3-RS-R40

Feb. 22, 2008

20-Slot Backplane with 18 PCI and 1 ISA Bus

User Manual Ver. 4.0

1. PW2: 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

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

１１

１１０

1

3. CN2: Backplane to Mainboard ATX power control Connector
Pin Description

1 5VSB
2 PSON#
3 GND

123

4. CN3, CN5: Fan Connector

Pin Description

1 NC
2 +12V
3 GND

5. CN1: Voltage Connector

Pin Description

1 +5V
2 -5V
3 -12V

1 2 3 4 5

▓ ▓ ▓ ▓ ▓

4 +12V
5 GND

6. PW4, PW5: Power Connector

Pin Description

1 +5V
2 +5V

123

3 +5V
4 GND
5 GND
6 GND

1 2 3 4 5 6

▓

●

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2