Lanner LEC-7920 - Manual (Page 14)

14
Board Layout
Chapter 3
Embedded and Industrial Computing
RS-232 Serial Port(COM2, CN16): It is a RS-232 port
through the D-SUB9 connector.
Jumper Settings
Serial-ATA Connector (J6): It is for connecting a 2.5’’
harddisk to be served as your system’s storage. It can
support SATA II which features Data transfer rates up to
3.0 Gb/s (300 MB/s).
Serial-ATA Connector (J7): This connector supports
SATA-DOM.
4-pin Serial-ATA Power Connector (J8): It is for
connecting the SATA power cord.
RS-232 Serial Port(COM1, CN15): It is a RS-232 port
through the D-SUB9 connector.
6 7 8 9
1 2 3 4 5
Pin No. Pin Name Pin No. Pin Name
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RIA
5 GND
Pin No. Function
1 GND
2 TX+
3 TX-
4 GND
5 RX-
6 RX+
7 GND
Pin No. Function
1 +12V
2 GND
3 GND
4 +5V
1 2 3 4 5 6 7
1 2 3 4
7 6 5 4 3 2 1
Pin No. Function
1 GND
2 TX+
3 TX-
4 GND
5 RX-
6 RX+
7 VCC_5V
6 7 8 9
1 2 3 4 5
Pin No. Pin Name Pin No. Pin Name
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RIA
5 GND