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COM Ports / 8-bit DIO / CANbus
JP22
1
1
3
(JP20)
1
(JP18)
(JP17)
1
10
12
1
3
COM 4/DIO Select
Digital I/O 4-7 Output State
(JP21)
Digital I/O 0-3 Output State
10
12
Digital I/O Power Select
COM 4
COM 2
SATA 2.0
COM 4:
SATA 0
RS232/RS422/RS485
4
1
COM 2:
SATA Power
RS232/RS422/RS485
COM 1:
COM 1
Mini PCIe with LPC
RS232/RS422/RS485
iTE
IT8528E
USB 0
USB 0
USB 3.0
Power
Select
(JP5)
1
1
Auto
Power-on
Select
(JP25)
HDMI
Power
Mini PCIe with SIM
COM 1, COM 2, COM 3 and COM 4 can be selected among RS232, RS422 and RS485 whereas
COM 5 is only an RS232 port. In addition, COM 4 can be used as a serial, an 8-bit DIO or a
CANbus port; refer to Jumper Settings in Chapter 4 for the respective configuration.
COM 1
COM 2 / COM 3 / COM 4 / COM 5
/
1 2 3 4 5
1 2 3 4 5
6
7
8 9
6 8 9
7
RS422
RS232
Full Duplex
Chapter 5 Ports and Connectors
1
Battery
(JP22, JP21)
(JP18)
(JP20)
COM 3
(JP17)
Buzzer
1
SPI
COM 3:
Clear CMOS
Flash
Data (JP24)
BIOS
RS232/RS422/RS485
VGA
eMMC
(optional)
Mic-in
mSATA
Line-out
USB 1
USB 2.0
USB 2
MicroSD
(optional)
USB 6
USB 5-7 Power
Select (JP7)
USB 7
USB 1-2
Power Select (JP6)
DC-in
COM 5
1
1
10
from
Power board
9
LAN 1
COM 5:
LAN 2
RS232
DC-in
1 2 3 4 5
6 8 9
7
RS485
Chapter 5
CANbus Port
The Controller Area Network (CAN) enables communication among engine control units (ECUs)
and sensors used in a motor vehicle.
8-bit DIO
The 8-bit Digital I/O connector can be configured as 8 inputs or outputs to provide monitoring
and control function to connected external devices. We have built support software called EAPI
that enables the functionality of hardware components. Please contact our tech support or
sales representatives for the support software package.
BIOS Setting
Configure the COM ports including its communication mode in the Advanced menu ("Super IO
Configuration" submenu) of the BIOS.
Pins
RS232
1
DCD
2
RXD
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
RI
9
COM 4 DIO
DIO Pin Assignments
Pins
COM 4
1
6
DIO_0
2
7
DIO_1
DIO_2
3
8
DIO_3
4
9
GND
5
22
Refer to Chapter 7 for more information.
COM 1 ~ COM 5 Pin Assignments
RS422 (full)
RS422 (half)
RS485
RX+
RX+
DATA+
RX-
RX-
DATA-
TX+
NC
NC
TX-
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
COM 4 CANbus
CANbus Pin Assignments
Pins
COM 4
DIO_4
1
CAN1-L
DIO_5
2
CAN1-H
DIO_6
CAN2-L
3
DIO_7
CAN2-H
4
GND
5
J1708-L
6
J1708-H
7
N/C
8
N/C
9
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