1 : M.2 Key-M Socket (M2_M1)
2 : M.2 Key-E Socket (M2_E1)
3 : Clear CMOS Header (CLRMOS1)
1-2 : Auto Clear (PWR OFF)
2-3 : Clear CMOS
Jumpers and Headers Setting Guide
NUC-J6412
4 : Front Panel Audio Header
5 : USB 2.0 Connector (USB2_6_7)
6 : COM Port Header (RS232/422/485)
7 : Audio Jack (AUDIO1)
8 : USB 3.2 Gen2 Type-C Port (USB3_TC_1)
9 : Top : USB 2.0 Port (USB_4)
Bottom : USB 3.2 Gen2 Port (USB3_3)
10 : SATA3 Port (SATA3_1)
11 : SIO_AT1
Open : ATX Mode
Short : AT Mode
12 : USB 3.2 Gen2 Type-C Port (USB3_TC_2)
13 : System Panel Header (PANEL1)
14 : DC-In Jack (DC_IN1)
15 : Top : USB 2.0 Port (USB_1)
Bottom : USB 3.2 Gen2 Port (USB3_0)
16 : Top : DisplayPort (DP1)
Bottom : HDMI Port (HDMI1)
17 : RJ-45 LAN Port (LAN2)
18 : RJ-45 LAN Port (LAN1)
The terms HDMI
®
and HDMI High-Definition
Multimedia Interface, and the HDMI logo are
trademarks or registered trademarks of HDMI
Licensing LLC in the United States and other
countries.
Revision History
Date
Description
July 20, 2021
First Release
NC
DUMMY
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
DUMMY
GND
1
PIN Signal
Name PIN
Signal
Name PIN
Signal
Name PIN
Signal
Name
PIN Signal
Name
2
AGND
4
NC
6 LIN1_JD 8 LIN2_JD 10
NC
1 LIN1_R_
IN
3 LIN1_L_
IN
5 LIN2_R_
OUT
7
AGND
9 LIN2_L_
OUT
3 2 1
Top View:
* This motherboard supports RS232/422/485 on COM1 port. Please
refer to below table for the pin definition. In addition, COM1 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.
PIN
RS232
RS422
RS485
1
DCD, Data Carrier Detect
TX-
RTX-
2
RXD, Receive Data
TX+
RTX+
3
TXD, Transmit Data
RX+
N/A
4
DTR, Data Terminal Ready
RX-
N/A
5
GND
GND
GND
6
DSR, Data Set Ready
N/A
N/A
7
RTS, Request To Send
N/A
N/A
8
CTS, Clear To Send
N/A
N/A
9
N/A
N/A
N/A
COM1 Port Pin Definition
CCTS#1
RRTS#1
DDSR#1
DDTR#1
RRXD1
GND
TTXD1
DDCD#1
1
RRI#1
N/A
