Asus V2-PH1 - Manual (Page 61)

4-9 ASUS Vintage2-PH1
11. Chassis intrusion connector (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.
By default, the pins labeled “Chassis Signal” and “Ground” are shorted
with a jumper cap. Remove the jumper caps only when you intend to
use the chassis intrusion detection feature.
®
Chassis intrusion connector
CHASSIS
(Default)
+5VSB_MB
Chassis Signal
GND
12. Power LED connector (3-pin PLED)
This 3-pin connector is for the system power LED. The system power
LED lights up when you turn on the system power, and blinks when
the system is in sleep mode.
®
Power LED connector
PLED
PLED+
1
NC
PLED-