Front Panel Connector (Cn3) - AXIOMTEK CAPA322 User Manual

2.4.3

Front Panel Connector (CN3)

This is a 2x6-pin header (pitch=2.0mm) for front panel interface.
Pin Signal
1 BUZZER-
3 GND
5 PWRLED-
7 PWRSW-
9 HW RST-
11 HDDLED-
Internal Buzzer
Pin 1(-) and 2(+) connect the internal buzzer cable.
Power Status (PS-ON)
Pin 4 and pin 3 are PS-ON signal which are connected for knowing the power status of
this board.
Power LED
Pin 6 connects anode (+) of LED and pin 5 connects cathode(-) of LED. The power LED
lights up when the system is powered on.
Power On/Off Button
Pin 7 and 8 connect the power button on front panel to CPU board, which allows users to
turn on or off power supply.
System Reset Switch
Pin 9 and 10 connect the case-mounted reset switch that reboots your computer without
turning off the power switch. It is a better way to reboot your system for a longer life of
system power supply.
HDD Activity LED
This connection is linked to hard drive activity LED on the control panel. LED flashes
when HDD is being accessed. Pin 11 and 12 connect the hard disk drive to the front
panel HDD LED, pin 11 is assigned as cathode(-) and pin 12 is assigned as anode(+).
Board and Pin Assignments
Pin Signal
2 BUZZER+
4 PWR_PSON
6 PWRLED+
8 PWRSW+
10 HW RST+
12 HDDLED+
CAPA322 3.5" Board
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