19 : COM Port Pin9 PWR Setting Jumpers
PWR_COM3 (For COM Port3)
PWR_COM4 (For COM Port4)
1-2 : +5V
2-3 : +12V
20 : Battery Connector (BAT1)
21 : COM1, 2, 3, 4 Headers
22
: GPIO Default Setting (JGPIO_SET1)
1-2 : Pull-High
2-3 : Pull-Low
23 : CAN1_2 (Only supported With SBC-250N)
24 : ESPI Connector
25 :Digital Input / Output Pin Header
(JGPIO1)
15 : M.2 Key-M Socket
16 : M.2 Key-B Socket
17 : SATA3 Connector
(SATA3_1)
18 : 4-pin DC-in PWR Connector
(Input +12V)
1-4 : GND
2-3 : DC Input
26 : USB2.0 Connectors
(USB2_5_6,
USB2_7_8)
27 : System Panel Header
28 : USB3.2 Gen1 Connector (USB3_1_2)
29 : LAN Port (LAN2)
30 : LAN Port (LAN1)
31 : HDMI Port (HDMI1)
32 : Top : USB2.0 Port (USB3_3)
Bottom : USB3.2 Gen2 Port (USB3_4)
33 : Brightness Control Mode (BLT_PWM1)
1-2 : From eDP PWM to CON_LBKLT_CTL
2-3 : From LVDS PWM to CON_LBKLT_CTL
* Please set to 1-2 when adjusting brightness by Brightness Control bar under OS.
* Please set to 2-3 when adjusting brightness by BLT_VOL1.
34 : CON_LBKLT_EN and CON_LBKLT_CTL
Voltage Level (BLT_EN_PWM1)
1-2 : 5V Level
2-3 : 3V Level
35 : VGA Port (VGA1)
Backside :
SIM Socket (SIM1)
PIN
RS232
RS422
RS485
1
DCD
TX-
RTX-
2
RXD
TX+
RTX+
3
TXD
RX+
N/A
4
DTR
RX-
N/A
5
GND
GND
GND
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTS
N/A
N/A
9
COM1, 2: N/A
COM3, 4: PWR
COM1, 2: N/A
COM3, 4: PWR
COM1, 2: N/A
COM3, 4: PWR
* This motherboard supports RS232/422/485 on COM3 port. Please refer to below
table for the pin definition. In addition, COM3 port (RS232/422/485) can be adjusted
in BIOS setup utility > Advanced Screen > Super IO Configuration. You may refer to
our user manual for details.
COM Port Pin Definition
1
GND
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
PIN Signal Name PIN Signal Name
9
GPIO
10
NC
7
GND
8
GND
5
CAN1_RX0
6
CAN2_RX0
3
CAN1_TX0
4
CAN2_TX0
1
+3VSB
2
+3VSB
2
1
1
2
9
1
0
1
2
9
10
PIN Signal Name PIN Signal Name
10
GND
9
JGPIO_PWR
8
GP_D03
7
SIO_GP37
6
GP_D02
5
SIO_GP36
4
GP_D01
3
SIO_GP35
2
PMC_TGPIO0
1
SIO_GP34
Installation of ROM Socket
* Do not apply force to the actuator cover after ic inserted.
* Do not apply force to actuator cover when it is opening over 120
degree, Otherwise, the actuator cover may be broken.
* The yellow dot (Pin1) on the ROM must be installed at pin1 position of
the socket (white arrow area).
* Make sure the white dot on the ROM is installed outwards of the
socket.
* For further details of how to install ROM, please refer to ASRI website.
Warning: If the installation does not follow as the picture, then it
may cause severe damage to chipset & MB.
3 2 1
NA
NA
NA
NA
1
In
Dummy
IntA_PB_D-
GND
IntA_
GND
IntA_PB_SSTX-
IntA_
IntA_PB_SSRX-
Vbus
Vbus
IntA_PA_SSRX-
IntA_
GND
IntA_PA_SSTX-
IntA_
GND
IntA_PA_D-
In
DUMMY
DUMMY
DUMMY
DUMMY
PIN
Signal Name
20
GND
19
C_ESPI_ALER
T#
18
N/A
17
N/A
16
+3VSB
15
GND
14
C_ESPI_IO3
13
C_ESPI_IO2
12
C_ESPI_IO1
11
C_ESPI_IO0
10
SMB_DA
TA_MAIN
9
SMB_CLK_MAIN
8
GND
7
+3V
6
GND
5
DEBUG_RESET
4
C_ESPI_CS#
3
GND
2
C_ESPI_CLK
1
GND
DUMMY
GND
GND
+B
-B
+A
-A
USB_PWR
USB_PWR
1
