AXIOMTEK PICO50R, User Manual

Page: 21 / 82

PICO50R/51R Pico-ITX Board
Board and Pin Assignments 15
2.5.1 Front Panel Connector (CN2)
This is a 2x6-pin header (pitch=2.0mm) for front panel interface.
External Speaker
Pin 1(+) and 2(-) connect the case-mounted speaker unit or internal buzzer cable. It is
strongly recommended to connect with the matching cable, 594H3186800E.
Power Status
Pin 4 and pin 3 are for power status button; letting user know 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 8 and 7 connect the power button on front panel to CPU board, which allows users to
turn on or off power supply.
System Reset Switch
Pin 10 and 9 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 12 and 11 connect the hard disk drive to the front
panel HDD LED, pin 11 is assigned as cathode(-) and pin 12 is assigned as anode(+).
2.5.2 Inverter Connector (CN3)
This is an 8-pin (pitch=1.25mm) connector which is compliant with Hirose
DF13-8P-1.25V for inverter interface. We strongly recommend you to use the matching
connector, DF13-8S-1.25C, to avoid malfunction.
Pin Signal Pin Signal
1 EXT SPK+ 2 EXT SPK-
3 GND 4 PWR_PSON
5 PWRLED- 6
7 PWRSW- 8 PWRSW+
9 HW RST- 10 HW RST+
11 HDDLED- 12
Pin Signal
1 +12VM1 (+12V level)
2 +12VM1 (+12V level)
3 +V5S
4 LVDS Enable Control
5 GND
6 GND
7 GND
8 LVDS Brightness Control