Aplex APC-3918P, User Manual, Page: 28 / 88

APC-3918P User Manual 27
PS2_K/
B
Ps2_KBDATA 21 22 PS2_MSDATA PS2_Mous
e
PS2_KBCLK 23 24 PS2_MSCLK
USB2
5V_USB_23 25 26 5V_USB_23
USB3
USB2_N 27 28 USB3_N
USB2_P 29 30 USB3_P
Ground 31 32 Ground
USB0
5V_USB_01 33 34 5V_USB_01
USB1 USB0_N 35 36 USB1_N
USB0_P 37 38 USB1_P
Ground 39 40 Ground
Pin1-3: HDD LED , They are used to connect hard disk activity LED. The LED blinks
when the hard disk is reading or writing data.
Pin2-4: POWER LED , They are used to connect power LED. When the system is
powered on or under S0/S1 state, the LED is normally on, when the system
is
under S4/S5 state, the LED is off.
Pin5-7: RESET Button , They are used to connect reset button. The two pins are dis-
connected under normal condition. You may short them temporarily to
realize
system reset.
Pin6-8: POWER on/off Button , They are used to connect power switch button. The
two pins are disconnected under normal condition. You may short them
temporarily to realize system startup & shutdown or awaken the system
from
sleep state.
Pin9-10: BUZZER , They are used to connect an external buzzer.
Pin11-18: GPIO IN/GPIO OUT, General-purpose input/output port, it provides a group
of self-programming interfaces to customers for flexible use.
Pin19-24: PS2 KB/MS, PS/2 keyboard and mouse port, the port can be connected to
PS/2 keyboard and mouse via a dedicated cable for direct used.
Pin25-40: USB0/USB1/USB2/USB3 , Front USB connector, it provides 4 USB ports
via a dedicated USB cable, speed up to 480Mb/s.