Chapter 5
56
have this kind of case, use auxiliary USB connector to connect the front-mounted
ports to the motherboard.
Please make sure that the USB cable has the same pin assignment as indicated
above. A different pin assignment may cause damage or system hang-up.
COM2: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
SPDIF_OUT1: SPDIF out header
This is an optional header that provides an SPDIF_OUT (Sony/Philips Digital Interface)
output to digital
multimedia device through optical fiber or coaxial connector.
Pin
Signal Name
Function
1
USBPWR me
Front Panel USB Power
2
USBPWR
Front Panel USB Power
3
USB_FP_P0-
USB Port 0 Negative Signal
4
USB_FP_P1-
USB Port 1 Negative Signal
5
US
USB Port 0 Positive Signal
6
US
USB Port 1 Positive Signal
7
GND Ground
8 GND
Ground
9
Key No
pin
10 USB_FP_OC0
NC
Pin
Signal Name
Function
1
DCD me
Data Carrier Detect
2
SIN Serial
Input
3
SOUT
UART B Serial Output
4
DTR
UART B Data Terminal Ready
5 GND
Ground
6 DSR
Data
Set
Ready
7
RTS
RART B Request to Send
8 CTS
Clear
to
Send
9
RI Ring
Indicator
10 NC
No
pin
