DFI ADP253 User manual

ADP253
Embedded 4" SBC
User’s Manual
© April 21, 2023 DFI Inc.

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User's Manual | ADP253
Copyright
This publication contains information that is protected by copyright. No part of it may be repro-
duced in any form or by any means or used to make any transformation/adaptation without the
prior written permission from the copyright holders.
This publication is provided for informational purposes only. The manufacturer makes no
representations or warranties with respect to the contents or use of this manual and specifi-
cally disclaims any express or implied warranties of merchantability or fitness for any particular
purpose. The user will assume the entire risk of the use or the results of the use of this docu-
ment. Further, the manufacturer reserves the right to revise this publication and make changes
to its contents at any time, without obligation to notify any person or entity of such revisions or
changes.
Changes after the publication’s first release will be based on the product’s revision. The website
will always provide the most updated information.
© 2023. All Rights Reserved.
Trademarks
Product names or trademarks appearing in this manual are for identification purpose only and
are the properties of the respective owners.
FCC and DOC Statement on Class A
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reason-
able protection against harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio TV technician for help.
Notice:
1. The changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
2. Shielded interface cables must be used in order to comply with the emission limits.

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User's Manual | ADP253
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Specifications.........................................................................................................................6
Dimensions.............................................................................................................................8
Block Diagram ........................................................................................................................8
Chapter 2 - Hardware Installations..............................................................................................9
Overview..................................................................................................................................9
Top View...........................................................................................................................9
Jumper Settings...................................................................................................................10
COM Serial / DIO Switch (JP8 & JP9)........................................................................10
Pin Assignment....................................................................................................................11
RTC Battery (J1)............................................................................................................11
SATA Power (CN8) ........................................................................................................11
SATA (J12).....................................................................................................................12
Front Panel (JP10) ........................................................................................................12
COM1 (CN49) & COM2 (CN50)....................................................................................13
COM3/DIO (Optional) (CN51).......................................................................................13
COM4 (CN52) & COM5 (J22) & COM6 (J23).............................................................14
Expansion Slots....................................................................................................................15
Installing the M.2 Module.............................................................................................15
Installing the SO-DIMM Module ...................................................................................16
Installing the Heatsink or Fan.............................................................................................17
Chapter 3 - BIOS Settings...........................................................................................................19
Overview ...............................................................................................................................19
Main.......................................................................................................................................20
Advanced .............................................................................................................................20
CPU Configuration.........................................................................................................21
Power & Performance...................................................................................................21
PCH-FW Configuration..................................................................................................22
Trusted Computing........................................................................................................22
IT8786 Super IO Configuration.....................................................................................23
IT8786 Super IO Configuration ►Serial Port 1, 2 Configuration ........................23
IT8786 Super IO Configuration ►Serial Port 3, 4 Configuration ........................24
IT8786 Super IO Configuration ►Serial Port 5, 6 Configuration ........................24
IT8786 Hardware Monitor.............................................................................................25
IT8786 Hardware Monitor ►Smart FAN Function..............................................25
Serial Port Console Redirection ...................................................................................26
Serial Port Console Redirection ►Console Redirection Settings........................26
ACPI Settings.................................................................................................................27
USB Configuration ........................................................................................................28
Network Stack Configuration........................................................................................28
DFI WDT Configuration..................................................................................................29
USB Power Control........................................................................................................29
Tls Auth Configuration..................................................................................................30
Chipset..................................................................................................................................31
System Agent (SA) Configuration................................................................................31
PCH-IO Configuration....................................................................................................32
PCH-IO Configuration►PCI Express Configuration.............................................32
PCH-IO Configuration►SATA Configuration .......................................................33
PCH-IO Configuration►HD Audio Configuration.................................................33
Security .................................................................................................................................34
Secure Boot....................................................................................................................34
Boot.......................................................................................................................................35
Save & Exit............................................................................................................................35
Updating the BIOS................................................................................................................36
Notice: BIOS SPI ROM..........................................................................................................36

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User's Manual | ADP253
About this Manual
This manual can be retrieved from the website.
The manual is subject to change and update without notice, and may be based on editions that
do not resemble your actual products. Please visit our website or contact our sales representa-
tives for the latest editions.
Warranty
1. Warranty does not cover damages or failures that arises from misuse of the product,
inability to use the product, unauthorized replacement or alteration of components and
product specifications.
2. The warranty is void if the product has been subjected to physical abuse, improper
installation, modification, accidents or unauthorized repair of the product.
3. Unless otherwise instructed in this user’s manual, the user may not, under any circum-
stances, attempt to perform service, adjustments or repairs on the product, whether
in or out of warranty. It must be returned to the purchase point, factory or authorized
service agency for all such work.
4. We will not be liable for any indirect, special, incidental or consequential damages to
the product that has been modified or altered.
About this Package
The package contains the following items. If any of these items are missing or damaged,
please contact your dealer or sales representative for assistance.
• 1 ADP253 board
• 1 Heat sink (Height: 37mm)
• 1 Serial ATA data with power cable
Note: The items are subject to change in the developing stage.Note: The items are subject to change in the developing stage.
The product and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.

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User's Manual | ADP253
Static Electricity Precautions
It is quite easy to inadvertently damage your PC, system board, components or devices even
before installing them in your system unit. Static electrical discharge can damage computer
components without causing any signs of physical damage. You must take extra care in han-
dling them to ensure against electrostatic build-up.
1. To prevent electrostatic build-up, leave the system board in its anti-static bag until you
are ready to install it.
2. Wear an antistatic wrist strap.
3. Do all preparation work on a static-free surface.
4. Hold the device only by its edges. Be careful not to touch any of the components, con-
tacts or connections.
5. Avoid touching the pins or contacts on all modules and connectors. Hold modules or
connectors by their ends.
Safety Precautions
• Use the correct DC / AC input voltage range.
• Unplug the power cord before removing the system chassis cover for installation or
servicing. After installation or servicing, cover the system chassis before plugging in
the power cord.
• There is danger of explosion if battery incorrectly replaced.
• Replace only with the same or equivalent specifications of batteries recommend by
the manufacturer.
• Dispose of used batteries according to local ordinance.
• Keep this system away from humid environments.
• Make sure the system is placed or mounted correctly and stably to prevent the chance
of dropping or falling may cause damage.
• The openings on the system shall not be blocked and shall be kept in distance from
other objects to make sure of proper air ventilation to protect the system from over-
heating.
• Dress the cables, especially the power cord, so they will not be stepped on, in contact
with high temperature surfaces, or cause any tripping hazards.
• Do not place anything on top of the power cord. Use a power cord that has been ap-
proved for use with the system and is compliant with the voltage and current ranges
required by the system’s electrical specifications.
• If the system is to be unused or stored for a long time, disconnect it from the power
source to avoid damage by transient overvoltage.
• If one of the following occurs, consult a service personnel:
- The power cord or plug is damaged.
- Liquid has penetrated the system.
- The system has been exposed to moisture.
- The system is not working properly.
- The system is physically damaged.
• The unit uses a three-wire ground cable which is equipped with a third pin to ground
the unit and prevent electric shock. Do not defeat the purpose of this pin. If your outlet
does not support this kind of plug, contact your electrician to replace the outlet.
• Disconnect the system from the electricity outlet before cleaning. Use a damp cloth
for cleaning the surface. Do not use liquid or spray detergents for cleaning.
• Before connecting, make sure that the power supply voltage is correct. The device is
connected to a power outlet which should be grounded connection.
Important:
Electrostatic discharge (ESD) can damage your processor, disk drive and other
components. Perform the upgrade instruction procedures described at an ESD
workstation only. If such a station is not available, you can provide some ESD pro-
tection by wearing an antistatic wrist strap and attaching it to a metal part of the
system chassis. If a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD protection.
The system may burn fingers while running.
Wait for 30 minutes to handle electronic parts after power off.

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Chapter 1
INTRODUCTION
User's Manual | ADP253
Chapter 1 - Introduction
X Specifications
SYSTEM Processor 12th Gen Intel®Core™ Processors, BGA 1744 (Alder Lake-P, 15W)
Intel®Core™ i7-1265UE Processor, 10C12T, 12M Cache, 1.7GHz (4.7GHz)
Intel®Core™ i5-1245UE Processor, 10C12T, 12M Cache, 1.5GHz (4.4GHz)
Intel®Core™ i3-1215UE Processor, 6C8T, 10M Cache, 1.2GHz (4.4GHz)
Intel®Celeron® 7305E Processor, 5C5T, 8M Cache, 1.0GHz
Memory 8GB On-board memory & one SO-DIMM DDR4 up to 32GB
Dual Channel DDR4 3200MHz
BIOS AMI SPI 256Mbit (Supports UEFI boot only)
GRAPHICS Controller Intel®Iris®Xe Graphics
Intel®UHD Graphics
Feature DirectX 12, Open GL 4.6, Vulkan 1.2
HW Decode: AV1, AVC/H.264, MJPEG, HEVC/H.265, VP9, SCC
HW Encode: MJPEG, AVC/H.264, HEVC/H.265, VP9, SCC
Display 1 x HDMI
HDMI: Resolution up to 4096x2160 @60Hz
1 x VGA/DP (Opt.)
VGA: Resolution up to 1920x1200 @60Hz
DP: Resolution up to 4096x2304 @60Hz
2 x Type-C DP Alt. Mode
Multiple
Displays HDMI + VGA/DP (Optional) + Type-C DP Alt. Mode + Type-C DP Alt. Mode
EXPANSION Interface 1 x M.2 M Key 2280 (PCIex4/SATA)
1 x M.2 B Key 3042/3052 (USB3.0/USB2.0/PCIex1)
1 x M.2 E Key 2230 (CNVi/PCIex1/USB2.0)
1 x SIM slot for 4G/5G
AUDIO Audio Codec Realtek ALC888S
ETHERNET Controller 1 x Intel®I225LM/IT (10/100/1000/2500Mbps)
2 x Intel®I225LM/IT (10/100/1000Mbps)
(Only Core i7/i5 supports iAMT)
REAR I/O Ethernet 1 x 2.5GHz (RJ-45) + 2 x GbE (RJ-45)
Serial COM 3: 1 x RS-232 (also supports an optional 8-bit DIO)
USB 4 x USB 3.2
Default: 2 x Type C + 2 x Type A connector
Option: 4 x Type A connector
Audio 1 x Audio Combo Phone Jack (Line-out/Mic-in)
Display 1 x HDMI
2 x Type-C DP Alt. Mode

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Chapter 1
INTRODUCTION
User's Manual | ADP253
FRONT I/O
Serial COM 1 / COM 2: 2 x RS-232/422/485
COM 4: 1 x RS-232
Display 1 x VGA/DP (Optional)
Button 1 x Power Button
1 x Reset Button
INTERNAL I/O
Serial COM 5 / COM 6: 2 x RS-232 (2.0mm pitch, box header)
USB 2 x USB 2.0 (2.0mm pitch, box header)
Audio 1 x Front Audio (Line-out/Mic-in, 2.0mm pitch, box header)
SATA 1 x SATA 3.0 (up to 6Gb/s)
1 x SATA Power (5V/12V)
Others 1 x Front Panel
1 x System Fan Connector (Optional)
WATCHDOG
TIMER Output & Interval System Reset, Programmable via Software from 1 to 255 Seconds
SECURITY TPM Discrete TPM 2.0
POWER
Type 9~36 VDC input
Connector One power jack with lock. (Default)
Co-lay 2x2 pin power connector straight type and right angle type
Consumption TBD
RTC Battery CR2032 Coin Cell, link mother board with cable
OS SUPPORT Microsoft Windows 10 IoT Enterprise 64-bit
Linux Linux
MECHANISM Dimensions 4" SBC Form Factor , 165mm (6.49") x 115mm (4.53")
Height PCB: 1.6mm
Top Side: 16.34mm, Bottom Side: 3mm
ENVIRONMENT
Temperature Operating: -5 to 65°C / -30 to 80°C
Storage: -40 to 85°C
Humidity Operating: 5 to 90% RH
Storage: 5 to 90% RH
MTBF TBD

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Chapter 1
INTRODUCTION
User's Manual | ADP253
X Dimensions X Block Diagram

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Chapter 2
HARDWARE INSTALLATION
User's Manual | ADP253
Chapter 2 - Hardware Installations
X Overview
Top View
1
2
3
4
5
6
9
10
11
7
14
12
13
15
8
COM3 (RS232) / DIO (Optional)
Audio
HDMI
▲USB3.2 Type A
▼USB3.2 Type C
▲USB3.2 Type A
▼USB3.2 Type C
2.5G LAN3
LAN2 / LAN1
DC-IN
Front Audio
COM Serial / DIO Switch (JP8)
COM Serial / DIO Switch (JP9)
SATA
SATA Power
USB2.0
COM6
COM5
RTC Battery
SPI
SIM Slot
Front Panel
DDR4_SODIMM
M.2 B Key
M.2 E Key
M.2 M Key
1
1
3
3
1
1
1
2
9
10
10
10
12
12
10
9
9
2
10
2
1
1
10
2
112
56
9
1
2345
1
3
2
4
78
6
1
10
11
12
13
14
15
16
17
21
18
19
9
22 23 24 25 26
27
20
Clear CMOS
COM2
COM1
COM4
VGA
Reset Button
Power Button
16
19
17
18
20
21
22
23
24
25
26
27

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Chapter 2
HARDWARE INSTALLATION
User's Manual | ADP253
X Jumper Settings
COM Serial / DIO Switch (JP8 & JP9)
Serial COM Signal (Default)
JP8
JP9
DDR4_SODIMM
M.2 B Key
M.2 E Key
M.2 M Key
1
1
3
3
1
1
1
2
9
10
10
10
12
12
10
9
9
2
10
2
1
1
10
2
112
56
9
1
1
3
2
4
DIO Signal (Opt.)
1
3
3
110
10
12
12
1
3
10
12
1
3
10
12