Maxtang DTJ6412-A User manual

DTJ6412-A Mini-ITX Motherboard
User Manual

Contents
Chapter 1 Product Introduction ......................................................................................................3
Brief Introduction............................................................................................................3
Parameters......................................................................................................................3
Connector Diagram.........................................................................................................4
Chapter 2 Hardware ...........................................................................6
Installations.....................................................................................................................6
Jumper Setting ................................................................................................................6
Memory Slots..................................................................................................................6
Display Interfaces............................................................................................................7
Storage.........................................................................................................................................9
Expansion Slot..............................................................................................................................9
USB Interface...............................................................................................................................9
LAN...............................................................................................................................................9
COM.............................................................................................................................................9
LPT 11
GPIO...........................................................................................................................................11
Board Power Supply ..................................................................................................................11
Panel Switch Pin.........................................................................................................................12
PS/2 Socket...................................................................................12
Hardware Auto Start (Screen Printing: JAT) ..............................................................................12
CPU FAN Socket ..........................................................................................................13
System Fan Socket ......................................................................................................13
CMOS Clearance/Retention.......................................................................................................13

Chapter 1 Product Introduction
Brief Introduction
The EHL-10 is a mini ITX motherboard based on the Intel Elkhart Lake platform; features a small form
factor, low power consumption, and high performance.
Parameters
CPU:
Intel Celeron J6412——4Cores 4Threads, Base Frequency 2.00GHz, Burst Frequency 2.60 GHz, TDP 10W
Intel Pentium J6426——4Cores 4Threads, Base Frequency 2.00GHz, Burst Frequency 3.00 GHz, TDP 10W
Intel Atom x6425RE——4Cores 4Threads, Base Frequency 1.9GHz, TDP 12W
Intel Atom x6427FE——4Cores 4Threads, Base Frequency 1.9GHz, TDP 12W
Memory: 1x SO-DIMM DDR4-3200, supports dual-channel, maximum capacity: 32GB
GPU: Integrated Graphics based on CPU, display via 1x HDMI2.0, 1xDP (HDMI optional),1x LVDs (eDP optional)
Storage: 1 x M.2 Key B slot for 2242/2280 SATA SSD/4G Module, 1 x SATA3.0 standard interface
USB: 4x USB3.2 Gen 1, 4x USB2.0 (onboard pin)
Ethernet: 2x Gigabyte Network Controllers onboard (RTL8111H)
Audio: High-Definition Audio Codec, support Line_out, Mic_in, and power amplifier.
Serial I/O: 6x RS232 COM (COM2 can be set as RS485 through change the hardware.)
Expansion: 1x M.2_Key E for 2230 Wi-Fi Card, 1*PCIe4X (PCIe2X Signal)
Other I/O: 1xLPT, GPIO, 1xPS2_H, 1xJSPI, 1xJPOWER
Dimension: 170mm x 170mm
Power: 12V DC-in/4Pin Power
Operating Temperature: -20℃~60℃

Connector Diagram
LINE_OUT
LAN23
LAN1
2*USB3.2
2*USB3.2
HDMI
DP/HDMI
MIC_IN
DC_IN
FP-AUDIO
PWR2
JAUD
SATA
PWSATA
M.2_S
L-VCC
M.2_E
CPU
COM2
BKLADJ
COM1
JSPI
LVDS/EDP
SO-DIMM
E_DIS
JAT
SYSFAN
JSYSFAN
L-BKL
GPIO
COM36
CPUFAN2
LPT
PS2_H
2*USB2.0
2*USB2.0
CPUFAN1
JPOWER
PCIEX4

5

Chapter 2 Hardware
Installations
Please refer to the following steps for installations:
1. Read the user manual carefully to make sure all the adjustments on the EHL10 are correct.
2. Installing the Memory:
Press the ejector tab of the memory slot outwards with your fingertips.
Hold the memory module and align the key to the module with that on the memory slot.
Gently push the module into the slot until the ejector levers return completely to the closed
position, holding the module in place when the module touches the bottom of the slot. To
remove the module, press the ejector levers outwards to unseat the module.
3. Installing the expansion cards:
Locate the expansion slots and remove the screw, insert the cards into the slot at a 45-degree
angle then attach the screw to the expansion cards, gently press down on it then install the
screw back.
4. Connect all signal wires, cables, panel control wiring, and power supplies.
5. Start the computer and complete the setup of the BIOS program.
The board's components are integrated circuits and can easily be damaged by Electrostatic Discharge or
ESD; therefore, please follow the instructions:
Hold the board's edge when handing, and do not touch onboard pins, components, or plug
sockets.
When touching integrated circuit components (such as CPU, RAM, etc.), please wear an anti-
static wrist strap/glove to avoid electrostatic discharge damage to the board or other sensitive
components.
Before installing the integrated circuits/sensitive components, place the sensitive components
in anti-static bags to keep them safe from ESD.
Please make sure the power switch is OFF before plugging the power plug.
Jumper Setting
Please configure the jumpers according to your requirements before installing the hardware.
How to identify the first header of jumpers and pins: Observe the mark beside the jumper or pins and
find the header marked by “1” or bold line or triangular symbol. Or observe the rear panel and the header
with a square solder pad is the first header.
Memory Slots
The board provides 1 x SO-DIMM DDR4-3200, supports dual-channel, maximum capacity: 32GB.
Attention: Make sure to hold the memory module and align the key to the module with that on the
memory slot. While choosing a memory module, please make sure the module matches the board’s
specifications.

Display Interfaces
The board features Integrated Intel UHD graphics through 1xHDMI2.0 standard interface,
1xDP1.4(optional HDMI), 1xLVDS (optional eDP) for trio 4K displays.
LVDS
The board supports a dual channel 24bit LVDS interface, the "L_VCC" pin is the display working voltage
adjustment jumper, and the " L_BKL" pin is the LVDS backlight adjustment jumper.
LVDS Data Pin (Screen printing: LVDS/EDP)
Signal
Pin
Signal
VCC
1
2
VCC
VCC
3
4
GND
GND
5
6
GND
A_DATA0_DN
7
8
A_DATA0_DP
A_DATA1_DN
9
10
A_DATA1_DP
A_DATA2_DN
11
12
A_DATA2_DP
GND
13
14
GND
A_CLK_DN
15
16
A_CLK_DP
A_DATA3_DN
17
18
A_DATA3_DP
B_DATA0_DN
19
20
B_DATA0_DP
B_DATA1_DN
21
22
B_DATA1_DP
B_DATA2_DN
23
24
B_DATA2_DP
GND
25
26
GND
B_CLK_DN
27
28
B_CLK_DP
B_DATA3_DN
29
30
B_DATA3_DP
LVDS Backlight Adjustment Pin (Screen printing: L-BKL)
Pin
Signal
1
GND
2
GND
3
LCD_BKL_ADJ
4
LCD_BKL_ON
5
12V
6
12V
LVDS Screen Power Supply (Screen Printing: L-VCC)
Pin
Setting
Function
1-2
Close
VCC 3.3V
3-4
Close
VCC 5V
5-6
Close
VCC 12V

Backlight Standard/Reverse adjustment jumper (Screen Printing: BKLADJ)
Pin
Setting
Function
1-2
Close
REV (Backlight Control Reverse)
2-3
Close
STD (Backlight Control Standard)
eDP (Optional)
Optional function, the board supports 2LANE eDP1.3 interface. When it is set as eDP functions, the pin
transmits the eDP signal and disables the LVDS function. The screen power supply controls by the “L_VCC”
jumper, the “L_BKL” jumper is for screen backlight adjustment.
eDP Data Pin (Screen Printing: LVDS/EDP)
Signal
Pin
Signal
VCC
1
2
VCC
VCC
3
4
EDP_HPD
GND
5
6
GND
EDP_AUXN
7
8
EDP_AUXP
NC
9
10
NC
EDP_DATA0_P
11
12
EDP_DATA0_N
GND
13
14
GND
NC
15
16
NC
EDP_DATA1_P
17
18
EDP_DATA1_N
NC
19
20
NC
NC
21
22
NC
NC
23
24
NC
GND
25
26
GND
NC
27
28
NC
NC
29
30
NC
eDP Backlight Adjustment Pin (Screen Printing: L-BKL)
Pin
Signal
1
GND
2
GND
3
LCD_BKL_ADJ
4
LCD_BKL_ON
5
12V
6
12V
EDP Screen Power Supply (Screen Printing: L-VCC)
Pin
Setting
Function
1-2
Close
VCC 3.3V

3-4
Close
VCC 5V
5-6
Close
VCC 12V
Backlight Standard/Reverse adjustment jumper (Screen Printing: BKADJ)
Pin
Setting
Function
1-2
Close
REV (Backlight Control Reverse)
2-3
Close
STD (Backlight Control Standard)
Storage
The board features 1x SATA3.0 standard interface, transmission rate at 6GB/s, a disk power supply socket;
1 x M.2 Key B slot for 2242/2280 SATA SSD. The M.2 slot also supports 4G module functions with standard
SIM as an optional choice please contact sales if the function is needed.
Expansion Slot
1xM.2 Key_E slot for 2230 Wi-Fi module, 1x PCIE4X (PCIE2X Signal).
USB Interface
The board supports 4x USB3.2 Gen1 rear ports and 4x USB2.0 onboard pins (2.54mm spacing).
USB (Screen Printing: USB20, USB21)
Signal
Pin
Signal
VCC 5V
1
2
VCC 5V
USB DATA-
3
4
USB DATA-
USB DATA+
5
6
USB DATA+
GND
7
8
GND
NC
9
10
(NC)
LAN
The board features 2xRJ45 interfaces with high-speed RTL8111H Gigabit network controllers, supports
Magic packet wake-up, and the LAN1 supports PXE network boot.
LED Status Indicators:
LI_LED Status (Green)
Function
ACT_LED Status (Orange)
Function
Always on
Network Connected
Blinking
Data transfer
COM
The board provides six serial ports RS232 onboard headers (pin spacing for COM1 and COM2 is 2.54mm;
COM36 pin spacing is 2.0mm), and COM2 can be set to RS485 through hardware changes.

COM1, COM2 pin definition (Screen Printing: COM1, COM2)
Signal
Pin
Signal
DCD#
1
2
RXD
TXD
3
4
DTR#
GND
5
6
DSR#
RTS#
7
8
CTS#
RI#
9
10
(NC)
COM36 (Screen: COM36)
Signal
Pin
Signal
DCD#
1
2
RXD
TXD
3
4
DTR#
GND
5
6
DSR#
RTS#
7
8
CTS#
RI#
9
10
(NC)
DCD#
11
12
RXD
TXD
13
14
DTR#
GND
15
16
DSR#
RTS#
17
18
CTS#
RI#
19
20
(NC)
DCD#
21
22
RXD
TXD
23
24
DTR#
GND
25
26
DSR#
RTS#
27
28
CTS#
RI#
29
30
(NC)
DCD#
31
32
RXD
TXD
33
34
DTR#
GND
35
36
DSR#
RTS#
37
38
CTS#
RI#
39
40
(NC)
COM3_P, COM5_P (Screen Printing: COM3_P, COM5_P)
Interface
Setting
Function
1-2
Close
5V
3-4
Close
RI
5-6
Close
12V
COM2 RS485:
Signal
RS232
RS485
1
DCD#
DATA-
2
RXD
DATA+
3
TXD
(NC)
4
DTR#
(NC)

5
GND
GND
6
DSR#
(NC)
7
RTS#
(NC)
8
CTS#
(NC)
9
RI#
(NC)
LPT
A set of 2x13 Pin LPT interfaces onboard. Please use an adapter to convert the LPT interface to a
standard parallel port for use. Users can connect it to a printer or other devices according to the needs.
LPT (Screen Printing: LPT)
Signal
Pin
Signal
STB
1
2
AFD
LPT_ PPD0
3
4
ERROR
LPT_ PPD1
5
6
INIT
LPT_ PPD2
7
8
SLIN
LPT_ PPD3
9
10
GND
LPT_ PPD4
11
12
GND
LPT_ PPD5
13
14
GND
LPT_ PPD6
15
16
GND
LPT_ PPD7
17
18
GND
ACK
19
20
GND
BUSY
21
22
GND
PE
23
24
GND
SLCT
25
26
(NC)
GPIO
The board provides a set of 2x5Pin GPIO (2.0mm spacing) 8 programmable I/O lanes in total.
GPIO (Screen Printing: GPIO)
Signal
Pin
Signal
PCH_GPP_G11
1
2
3.3V
PCH_GPP_G12
3
4
PCH_GPP_E15
PCH_GPP_G13
5
6
PCH_GPP_E16
PCH_GPP_G14
7
8
PCH_GPP_E20
GND
9
10
PCH_GPP_E21
Board Power Supply
The board supports a 12V DC-IN or ATX 12V supplementary power (2x2pin).
PWR1: 12V DC-in

PWR3: ATX12V supplementary power supply socket (2x2PIN)
Panel Switch Pin
The front control panel interfaces are to connect the functional buttons and indicators on the front
panel.
JPOWER (Screen Printing: JPOWER)
Signal
Pin
Signal
HDD_LED+
1
2
PWR_LED+
HDD_LED-
3
4
PWR_LED-
RSTBTN-
5
6
PWR_ON+
RSTBTN+
7
8
PWR_ON-
NC
9
10
(NC)
PS/2 Socket
The board provides one 6-pin PS/2 socket.
PS/2 (screen printing: PS2_H)
Pin
Signal
1
+5V
2
KB_DATA
3
KB_CLK
4
MS_ DATA
5
MS_CLK
6
GND
Hardware Auto Start (Screen Printing: JAT)
The board will enable hardware auto-start functions after the JAT jumper cap is connected.
JAT (Screen Printing: JAT)
Setting
JAT
Close
Hardware Auto Start

CPU FAN Socket
The board provides a CPU Fan socket for cooling. The default power supply is 5V, 12V optional.
CPU_FAN (Screen Printing: CPU_FAN)
Pin
Signal
1
VCC
2
GND
3
TAC
4
CTL
System Fan Socket
The board provides one system fan socket, default 5V for power supply (optional 12V through JSYSFAN).
SYSFAN (Screen Printing: SYSFAN)
Pin
Signal
1
GND
2
VCC
3
TAC
4
CTL
System Fan Voltage Setting (Screen Printing: JSYSFAN)
Interface
Setting
Function
1-2
Close
5V
2-3
Close
12V
CMOS Clearance/Retention
CMOS is powered by onboard button batteries. Clearing CMOS will permanently remove the previous
system settings and restore the board system to original settings (factory settings).
Step 1: Turn off the PC and disconnect the power adapter.
Step 2: Use the jumper cap to connect the 1st and 2nd header of JCMOS for 10 seconds, thendisconnect.
Step 3: Restart the device, press the <DEL> button to enter the BIOS, load the optimal default value,
save, and exit the settings.
JCMOS (Screen Printing: JCMOS)
Setting
JCMOS
Close
Clear CMOS
Please do not clear COMS when the PC is connected to power in case board damages.