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DC-IN
Internal I/O Connectors
COM (Serial) Port
X
X
The serial ports are asynchronous communication ports with 16C550A-compatible UARTs that
can be used with modems, serial printers, remote display terminals, and other serial devices.
COM 1 and 2 support three serial modes, i.e. RS232, RS422, and RS485. COM 3 and 4 only sup-
port RS232.
BIOS Setting
Configure the onboard COM ports in the Advanced menu ("Console Redirection" and "SIO NU-
VOTON6116D" submenus) of the BIOS. Refer to chapter 3 for more information.
„ COM Port Pin Assignment
Pin
RS232
1
DCD-
2
RD
3
TD
4
DTR-
5
GND
6
DSR-
7
RTS-
8
CTS-
9
RI-
Front Audio
10
User's Manual | CS103
USB 1/2
(USB 3.1
)
Note
USB 3/4
(USB 3.1
)
Note
RS422
RS485
(COM 1/2)
(COM 1/2)
TXD-
Data-
LAN1
TXD+
Data+
RXD+
N.C.
M.2 2230
RXD-
N.C.
LAN2
E Key
GND
GND
N.C.
N.C.
N.C.
N.C.
DP1
N.C.
N.C.
N.C.
N.C.
DP2
14
13
LPC
9
2
1
Realtek
PCIe1 (PCIe x4)
ALC888
2
1
PCIe Finger 1 (PCIe x1)
JP7
Internal I/O Connectors
X
M.2 2280 M Key
Note
USB Ports
(Bottom side)
DDR4_2 SODIMM
DDR4_1 SODIMM
„ USB 2.0 Pin Assignment
10
N.C.
Key
GND
GND
+Data
+Data
-Data
-Data
VCC
VCC
2
1
The USB device allows data exchange between your computer and a wide range of simultane-
ously accessible external Plug and Play peripherals.
In addition to the rear USB ports as introduced previously in this chapter, the system board
is equipped with four internal USB 2.0 ports (two pin headers) and 2 USB 3.1 Gen2 ports as
illustrated above. The pin headers for USB 9/10 can also be replaced by a Type A vertical con-
nector.
The internal USB pin headers may be connected to a card-edge bracket. Install the card-edge
bracket to an available slot at the rear of the system chassis and then insert the USB port
Socket LGA1151
cables to a connector.
Wake-On-USB Keyboard/Mouse
The Wake-On-USB Keyboard/Mouse function allows you to use a USB keyboard or USB mouse
SMBus
to wake up a system from the S state(s).
LED1
Buzzer
2
2
2
1
9
1
9
1
COM4
COM3
COM2
Battery
CPU Fan
Chapter 2
1
1
6
5
HARDWARE INSTALLATION
2
1
3
1
JP1
Intel
C246/Q370/H310
1
10
USB2_5/6
2
1
10
1
USB2_7/8
2
1
1
SPI
Flash
BIOS
1
39
40
1
LVDS
8
1
2
1
DIO Power
2
6
4
JP8
1
8
1
5
1
10
9
COM1
1
2
2
2
1
1
5
Chassis Intrusion
11
12
1
9
PCIe Finger 2 (PCIe x1)
System Fa
SATA Powe
SATA1(R3)
SATA0(R2)
LVDS Inver
Power
DIO
JP9
Front Panel
20
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