Aaeon EMB-BSW1 Manual page 17

6. AT mode selection (3-pin ATMODE)
EMB-BSW1
EMB-BSW1 ATMODE setting
AT mode
ATX mode (Default)
7. Chassis intrusion jumper (4-1 pin CHASSIS1)
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.
EMB-BSW1
EMB-BSW1 Chassis intrusion connector
Pins
1-2
3-4
Chapter 2: Motherboard information
ATMODE
Pins
1-2
2-3
CHASSIS1
PIN1
Enables the chassis intrusion detection feature
Disables the chassis intrusion detection feature
(Default)
2-9