Gigabyte GA-VM900MC User Manual page 27

Intel core 2 duo / intel pentium d /intel pentium 4 / celeron d lga775 processor motherboard
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15) COMB (Serial Port Header)
The COMB header can provide one serial port via an optional COM port cable. For purchasing the
optional COM port cable, please contact the local dealer.
16) F_USB1/F_USB2(USB Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports
via an optional USB bracket. For purchasing the optional USB bracket, please contact the local
dealer.
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
• Prior to installing the USB bracket, be sure to turn off your computer and unplug the
power cord from the power outlet to prevent damage to the USB bracket.
Pin No.
2
10
1
9
Pin No.
2
10
1
9
- 27 -
Definition
1
NDCD B-
2
NSIN B
3
NSOUT B
4
NDTR B-
5
GND
6
NDSR B-
7
NRTS B-
8
NCTS B-
9
NRI B-
10
No Pin
Definition
1
Power (5V)
2
Power (5V)
3
USB DX-
4
USB DY-
5
USB DX+
6
USB DY +
7
GND
8
GND
9
No Pin
10
NC
Hardware Installation

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