Gigabyte GA-990XA-UD3 User Manual page 28

12) F_1394 (IEEE 1394a Header)
The header conforms to IEEE 1394a specification. The IEEE 1394a header can provide one IEEE 1394a
UG
port via an optional IEEE 1394a bracket. For purchasing the optional IEEE 1394a bracket, please contact
T
the local dealer.
13) COMA (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.
Hardware Installation
• Do not plug the USB bracket cable into the IEEE 1394a header.
• Prior to installing the IEEE 1394a bracket, be sure to turn off your computer and unplug the power
cord from the power outlet to prevent damage to the IEEE 1394a bracket.
• To connect an IEEE 1394a device, attach one end of the device cable to your computer and then
attach the other end of the cable to the IEEE 1394a device. Ensure that the cable is securely
connected.
Pin No. Definition
9 1
10 2
9 1
10 2
- 28 -
1 TPA+
2 TPA-
3 GND-
4 GND
5 TPB+
6 TPB-
7 Power (12V)
8 Power (12V)
9 No Pin
10 GND
Pin No. Definition
1 NDCD-
2 NSIN
3 NSOUT
4 NDTR-
5 GND
6 NDSR-
7 NRTS-
8 NCTS-
9 NRI-
10 No Pin