ECS X58B-A, Manual, Page: 25 / 68

19
Installing the Motherboard
COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
1
DCDB Data carry detect
2
NSINB Serial Data In
3
NSOUTB Serial Data Out
4
DTRB Data terminal ready
5
GND Ground
6
DSRB Date set ready
7
RTSB Request to send
8
CTSB Clear to send
9
RI Ring Indicator
10
Key No pin
Pin Signal Name Function
F_1394A: Onboard IEEE 1394a header
Connect this header to any device with IEEE 1394a interface.
1
TPA+
2
TPA-
3
GND
4
GND
5
TPB+
6
TPB-
7
Cable-Power
8
Cable-Power
Pin Signal Name Pin Signal Name
9
KeyPin
10
GND