Digital I/O Port (Dio) Connector (Cn20); Atx 4 Pin 12V In Connector (Cn21) - AXIOMTEK IMB205 Product User Manual

IMB205 LGA1156 ATX Motherboard User's Manual

2.4.12 Digital I/O Port (DIO) Connector (CN20)

The board is equipped an 8-channel digital I/O connector CN20 that
meets requirements for a system customary automation control. The
digital I/O can be configured to control cash drawers, sense warning
signals from an Uninterrupted Power System (UPS), or perform store
security control. The digital I/O is controlled via software programming.
Pin Signal
DIO 6
1
DIO 7
3
DIO 8
5
GND
7
GND
9

2.4.13 ATX 4 Pin 12V in Connector (CN21)

You can connect it to the ATX12V power supply for CPU Core Voltage.
Pin
1 GND
2 GND
3 +12V
4 +12V
24
Pin Signal
DIO 1
2
DIO 2
4
DIO 3
6
DIO 4
8
DIO 5
10
Signal
CN20
CN21
Jumpers and Connectors