Lanner FW-8759 User Manual page 19

PC Case Open Detection Header (CONN4): It is for
detecting case open event.
2
1
Digital Input/Output Port (DIO1)
Pin No.
2 10
1 9
Pin No. Signal
1 CASEOPEN-
2 GND
Signal Pin No.
1 GPO_1 2
3 GPO_2 4
5 GPO_3 6
7 GPO_4 8
9 GND 10
Signal
GPI_1
GPI_2
GPI_3
GPI_4
GND