Protech Systems BU-2509 User Manual page 49

2-28. POWER INPUT CONNECTORS
ATX_PWR1: ATX Connector
The pin assignments are as follows:
PIN ASSIGNMENT
13 + 3.3V
14 -12V
15 GND
16 PSON
17 GND
18 GND
19 GND
20 -5V
21 + 5V
22 + 5V
23 + 5V
24 GND
ATX_PWR2: Power Connector
PIN ASSIGNMENT
4 +12V
3 +12V

BU-2509 USER S MANUAL
Chapter 2 Hardware Configuration
PIN ASSIGNMENT
1 + 3.3V
2 + 3.3V
3 GND
4 + 5V
5 GND
6 + 5V
7 GND
8 POK
9 + 5V_SB
10 + 12V
11 + 12V
12 + 3.3V
PIN ASSIGNMENT
1 GND
2 GND
ATX_PWR1
ATX_PWR2
Page: 2-37