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Chapter 5
SATA1~SATA2: Serial ATA Connectors
These connectors are use to support the new Serial ATA devices for the highest date transfer rates (150 MB/
s), simpler disk drive cabling and easier PC assembly. It eliminates limitations of the current Parallel ATA
interface. But maintains register compatibility and software compatibility with Parallel ATA.
COM2: Onboard Serial Port Header
Connect a serial port extension bracket to this header to add a second serial port to your system.
Pin
Signal Name
Pin
Signal Name
1
GND
2
TX+
3
TX-
4
GND
5
RX-
6
RX+
7
GND
-
-
Pin
Signal Name
Function
1
NDCDB
Data carry detect
2
NSINB
Serial Data In
3
NSOUTB
Serial Date Out
4
NDTRB
Data terminal ready
5
GND
Ground
6
NDSRB
Date set ready
7
NRTSB
Request to send
8
NCTSB
Clear to send
9
NRIB
Ring Indicator
10
Key
No Pin
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