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Board Layout

Chapter 3

Embedded and Industrial Computing

RS-232 Serial Port COM2 (JCOMB1): It is a RS-232 port

with a internal pin header.

COMA1 Pin 9 Function Selection (SC1T1): The Pin No. 9

of RS-232 can be altered to supply power. J

LAN1_1/LAN1_2: Dual RJ-45 with LED: The LAN ports

are provided by Intel 82583 Ethernet Controllers. The

following lists its main features:

The Preboot eXecution Environment (PXE) remote •

boot support

TCP segmentation offload•

TCP, UDP, IPv4 checksum offload•

Supports IEEE 802.1Q VLAN tagging•

Pin No. Description

Fast Ethernet Gigabit Ethernet

1 TX+ MD0+

2 TX- MD0-

3 RX+ MD1+

4 T45 MD2+

5 T45 MD2-

6 RX- MD1-

7 T78 MD3+

8 T78 MD3-

9 10-/100-/1000+

10 10+/100+/1000-

11 Link+/ACT-

12 Link-/ACT+

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). Note that SATA I supports SATA DOM

connection and it has a jumper to switch the powermode

of this port.

4-pin Serial-ATA Power Connector (PW1): It is for

connecting the SATA power cord (for SATA2 connector).

SATA1Power Mode Selection (JSATA1): The SATA1

interface’s pin can be switched by this jumper to supply

power to a SATA DOM.

RS-232 Serial Port COM1 (JCOMA1): It is a RS-232 port

through the D-SUB9 connector.

Pin No. Pin Name Pin No. Pin Name

1 Data Carrier Detect

(DCDA# )

6 Data Set Ready

(DSRA # )

2 Receive Data

( RXDA )

7 Request To Send

(RTSA # )

3 Transmit Data

(TXDA)

8 Clear To Send

(CTSA # )

4 Data Terminal Ready

(DTRA #)

9 Ring Indicator

(RIA # )

5 Ground

(GND )

RS-232 Pin 9 Function JP1, JP2

+5V 1-2

+12V 3-4

RI#(Default) 5-6

LEB-7110

Pin No. Function

1 +12V

2 GND

3 GND

4 +5V

SC1T1

Pin No. Function

1-2 GND (Default)

2-3 +5V

12345

6789

Pin No. Function

1 GND

2 TX+

3 TX-

4 GND

5 RX-

6 RX+

7 SATA Power

SATA1

SATA2

Pin No. Function

1 GND

2 TX+

3 TX-

4 GND

5 RX-

6 RX+

7 SATA Power

Pin No. Pin Name Pin No. Pin Name

1 Data Carrier Detect

(DCDB #)

6 Clear To Send

(CTSB #)

2 Data Set Ready

(DSRB #)

7 Data Terminal Ready

(DTRB #)

3 Receive Data

(RXDB)

8 Ring Indicator

(RIB #)

4 Request To Send

(RTSB #)

9 Ground

5 Transmit Data

(TXDB)

10 KEY

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 29 30

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