Lanner LEC-7105 - Manual (Page 13)

13
Board Layout
Chapter 3
Embedded and Industrial Computing
RS-232/422/485 Serial Port(COM2): It is a RS-232/422/485
port through the D-SUB9 connector.
SCT1, SCT2: Select COM2 Protocol Setting
RS-232
RS-422
RS-485
COM1 TYPE SCT2 SCT1
RS-232 (Default) 1-2 1-5, 2-6, 3-7, 4-8
RS-422 3-4 5-9, 6-10, 7-11, 8-12
RS-485 5-6 5-9,6-10,7-11,8-12
JP1, JP2: Select COM1 and COM2 power : The Pin No.
9 of RS-232 can be altered to supply power. JP1 and JP2
are used to select the power voltage for COM1 and COM2
respectively.
Jumper Settings
Serial-ATA Connector (SATA1, SATA2): 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).
4-pin Serial-ATA Power Connector (J3): It is for
connecting the SATA power cord.
Power eSATA Port (5V, EUSB1): A Power external SATA
port supports hot plugging of SATA II disc. It was provided
by the PCIe to SATA controller: JMB362 which connects
to the ICH8M through the PCIe interface. It can support
USB2.0 as well as eSATA transmission.
RS-232 Serial Port (COM1): It is a RS-232 port through
the D-SUB9 connector.
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 TX0_+
3 TX0_-
4 GNd
5 RX0_-
6 RX0_+
7 GNd
RS-232 Pin 9 Function JP1, JP2
+5V 1-2
+12V 3-4
RI (default) 5-6
LEB-7105
Pin No. Function
1 +5V
2 GNd
3 GNd
4 +12V
1 2 3 4 5 6 7
4 3 2 1
Pin No. Pin Name
RS-232 RS-422 RS-485
1 dCd Txd- data-
2 RXd Txd+ data+
3 TXd Rxd-
4 dTR Rxd+
5 GNd
6 dSR
7 RTS
8 CTS
9 RI
SCT2 SCT1
1
3
5 2
4
6 9
5
1 12
8
4
5
3
1 6
4
2
S7 S6 S5 S4 S3 S2 S1
Pin No. Function Pin No. Function
1 GNd 1 +5V
2 TX1_+ 2 USB8+
3 TX1_- 3 USB8-
4 GNd 4 GNd
5 RX1_-
6 RX1_+
7 VCC5
1 2 3 4 5
6 7 8 9