20
2-6-2 Headers
(1) COM2 Headers (9-pin block): COM2
This board has another serial port COM2, it come with cable providing serial
port COM2.
COM2
Pin 1
Note: Orient the read marking on the
COM2 ribbon cable to pin 1
(2)
USB Port Headers (9-pin block): USB1
These headers are used for connecting the additional USB port plug. By attaching an
option USB cable, your can be provided with two additional USB plugs affixed to the
back panel.
USB Port Headers
USB1
VCC
−
DATA
+DATA
GND
NC
VCC
−
DATA
+DATA
GND
Pin 1
(3)
IDE Activity LED: IDE LED
This connector connects to the hard disk activity indicator light on the case.
(4)
Turbo LED switch: TURBO LED
Since the motherboard’s turbo function is always on. The turbo LED will remain
constantly on while the system power is on. You may wish to connect the Power LED
from the system case to this lead. See the figure below.
(5)
Reset switch lead: RESET
This 2-pin connector connects to the case-mounted reset switch for rebooting your
computer without having to turn off your power switch. This is a preferred method of
rebooting in order to prolong the lift of the system’s power supply. See the figure
below.
(6)
Speaker connector: SPKR
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(7)
Power LED: POWER LED
The Power LED is light on while the system power is on. Connect the Power LED
from the system case to this pin.
(8)
Power switch: PW BTN
This 2-pin connector connects to the case-mounted power switch to power ON/OFF the
system.
