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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 USB_FP_P0+ USB Port 0 Positive Signal
6 USB_FP_P1+ 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