Biostar A770 A2G PLUS Setup Manual page 19

SATA1~SATA6: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 6 channels SATA interface,
it satisfies the SATA 2.5 spec and with transfer rate of 3.0Gb/s.
JCOM1: Serial port Connector
The motherboard has a Serial Port Connector for connecting RS-232 Port.
SATA1 SATA3 SATA5
SATA2 SATA4 SATA6
1
4
7
10
2
1 9
A770 A2G+
Pin Assignment
1 Ground
2 TX+
3 TX-
4 Ground
5 RX-
6 RX+
7 Ground
Pin Assignment
1 Carrier detect
2 Received data
3 Transmitted data
4
Data terminal ready
5 Signal ground
6 Data set ready
7 Request to send
8 Clear to send
9 Ring indicator
10 Key
17