Gigabyte GA-D525TUD User Manual page 14

10) F_USB1/F_USB2 (USB 2.0/1.1 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.
9
10
1
2
• 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.
11) COMB (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
10 9
2 1
12) CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been removed.
This function requires a chassis with chassis intrusion detection design.
1
Pin No. Definition Pin No. Definition
1 Power (5V) 6
2 Power (5V) 7
3 USB DX- 8
4 USB DY- 9
5 USB DX+ 10
Pin No. Definition Pin No. Definition
1 NDCD- 6
2 NSIN 7
3 NSOUT 8
4 NDTR- 9
5 GND 10
Pin No. Definition
1 Signal
2 GND
- 14 -
USB DY+
GND
GND
No Pin
NC
NDSR-
NRTS-
NCTS-
NRI-
No Pin