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
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