Aaeon MIX-H310D2 Manual page 22

4. AT/ATX mode selection (3-pin ATX_AT)
ATX mode (Default)
AT mode
5. Chassis intrusion jumper (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
connector. The chassis intrusion sensor or switch sends a high-level signal to
this connector when a chassis component is removed or replaced. The signal
is then generated as a chassis intrusion event.
Move the jumper cap to pins 1-2 when you intend to use the chassis intrusion
detection feature.
Pins
1-2
3-4
2-14
ATX mode
(Default)
Pins
1-2
2-3
Chassis Intruder -Unused
Chassis Intruder - Unused
Chassis Intruder - Used
Enables the chassis intrusion detection feature
Disables the chassis intrusion detection feature
(Default)
AT_ATX
AT mode
CHASSIS
PIN1
MIX-H310D2