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Summary of Contents for DFI ASL253
- Page 1 ASL253 Intel Atom RE Series ® ® User’s Manual © March 13, 2025 DFI Inc.
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Page 2: Fcc And Doc Statement On Class A
1. The changes or modifications not expressly approved by the party responsible for com- are the properties of the respective owners. 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. User's Manual | ASL253... -
Page 3: Table Of Contents
IT8786 Super IO Configuration ► Serial Port 6 Configuration ......28 IT8786 Hardware Monitor .....................29 Serial Port Console Redirection ..................29 Serial Port Console Redirection ► Console Redirection Settings ......30 Network Stack Configuration..................30 USB Power Control ......................31 Chipset ..........................32 User's Manual | ASL253... -
Page 4: About This Manual
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. User's Manual | ASL253... -
Page 5: Static Electricity Precautions
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 User's Manual | ASL253... -
Page 6: Chapter 1 - Introduction
2 x 2.5GbE RJ45 1 x GbE RJ45 Serial 1 x COM/DIO Port 3 x USB 3.2 type A 1 x USB-C 3.2 Audio 1 x 3.5mm Line out/Mic In Display 1 x HDMI Storage 1 x MicroSD User's Manual | ASL253... - Page 7 ENVIRONMENT -40 to 85°C with 0.2 m/s air flow (by project support) Humidity Storage: 5 to 90% RH Dimensions 4" SBC Form Factor MECHANISM 165mm (6.5") x 115mm (4.53") Certifications STANDARDS AND CE, FCC ClassA CERTIFICATIONS User's Manual | ASL253...
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Page 8: Dimensions
Chapter 1 INTRODUCTION X Dimensions X Block Diagram User's Manual | ASL253... -
Page 9: Chapter 2 - Hardware Installations
SIM Card Slot M.2 B Key MicroSD Card Slot COM4/DIO Selection (JP2) COM4/DIO Selection (JP1) USB2.0 / Case Open Bottom View SATA Power SATA VCC_PANEL Selection I2C Header Front Panel COM5 COM6 RTC Battery eDP / LVDS User's Manual | ASL253... -
Page 10: Jumper Settings
Chapter 2 HARDWARE INSTALLATION X Jumper Settings BL_ON_OFF Selection (DPJP1) INV_PWR Selection (DPJP2) M.2 B Key M.2 B Key „ 1-2 On: 3.3V „ 2-3 On : 5V „ 1-2 On: 12V „ 2-3 On: 5V User's Manual | ASL253... -
Page 11: Vcc_Panel Selection (Dpjp3)
„ 3-4 On: 5V „ 5-6 On: 3.3V „ DIO „ COM Connect to both JP1 & JP2 : Connect to both JP1 & JP2 : 2-3, 5-6, 8-9, 11-12 On 1-2, 4-5, 7-8, 10-11 On User's Manual | ASL253... -
Page 12: Pin Assignment
Chapter 2 HARDWARE INSTALLATION X Pin Assignment I2C Header (J8) SATA Power (CN11) M.2 B Key M.2 B Key Assignment Assignment I2C_SCL I2C_SDA I2C_INT User's Manual | ASL253... -
Page 13: Front Panel (Jp4)
Chapter 2 HARDWARE INSTALLATION Front Panel (JP4) USB2.0 / Case Open (J5) M.2 B Key M.2 B Key Assignment Assignment Assignment Assignment PWR_BTN SUS_LED# USB2_N SYS_RST HD_LED# USB2_P CASEOPEN- User's Manual | ASL253... -
Page 14: Com5 (Tsj1)
Chapter 2 HARDWARE INSTALLATION COM5 (TSJ1) COM6 (TSJ2) M.2 B Key M.2 B Key Assignment Assignment Assignment Assignment MDCD- MSIN MDCD- MSIN MSO- MDTR- MSO- MDTR- MDSR MDSR MRTS- MCTS- MRTS- MCTS- MRI- MRI- User's Manual | ASL253... -
Page 15: Edp / Lvds (Dpcn2)
LVDS_B_LANE1_N / LVDS_A_LANE1_N eDP_LANE1_N M.2 B Key LVDS_B_LANE0_P / LVDS_A_LANE0_P eDP_LANE0_P LVDS_B_LANE0_N / LVDS_A_LANE0_N eDP_LANE0_N LVDS_B_CLK_P / LVDS_A_CLK_P eDP_CLK_P LVDS_B_CLK_N / LVDS_A_CLK_N eDP_CLK_P LVDS_DDC_CLK eDP_HPD LVDS_DDC_DATA BL_ON_OFF LVDS_3V3 (1A) DIMMING INV_PWR (5V/12V, 2A) PANEL_PWR (3.3V/5V/12V, 1A) User's Manual | ASL253... -
Page 16: Db9-Com4 Pins Customization (Jp1 &Jp2)
Connect to JP1 (pin 2, ,5, 8, 11) &JP2 (pin 2, ,5, 8, 11) if there is internal signal communication request via DB9-COM4 connector without I/O shield changed. „ JP2 „ JP1 „ JP2 „ JP1 --> --> --> --> --> --> M.2 B Key --> --> User's Manual | ASL253... -
Page 17: Expansion Slots
4. Make sure the notch on card is aligned to the key on the socket. 5. Make sure the standoff screw is removed from the standoff. M.2 B Key M.2 Module M.2 Socket Stand-off Notch M.2 B-Key M.2 E-Key M.2 M-Key User's Manual | ASL253... - Page 18 Screw tight the card onto the stand-off with a screw driver and a stand-off screw until the gap between the card and the stand-off closes up. The card should be lying parallel to the board when it’s correctly mounted. User's Manual | ASL253...
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Page 19: Installing A Heatsink
Do not use excessive force or place direct pressure on the board. It affects the block and paste on the position 2. (See the photo above.) board's performance and may damage the motherboard. Make sure to peel off all the plastic films from every thermal pad and the copper block. User's Manual | ASL253... -
Page 20: Chapter 3 - Bios Settings
When “X” appears on the left of a particular field, it indicates that a submenu which contains additional options are available for that field. To display the submenu, move the highlight to that field and press <Enter>. User's Manual | ASL253... -
Page 21: Main
The time format is <hour>, <minute>, <second>. The time is based on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00. Hour displays hours from 00 to 23. Minute displays min- utes from 00 to 59. Second displays seconds from 00 to 59. User's Manual | ASL253... -
Page 22: Rc Acpi Settings
(G3 state). • S0 State The system automatically powers on after power failure. • S5 State The system enter soft-off state after power failure. Power-on signal input is required to power up the system. User's Manual | ASL253... -
Page 23: Power & Performance
Enable or disable turbo mode of the processor. This field will only be displayed when EIST is Enable/Disable Me FW Image Re-Flash function. enabled. C states Enable or disable CPU Power Management. It allows CPU to enter "C states" when it’s idle and nothing is executing. User's Manual | ASL253... -
Page 24: Intel(R) Time Coordinated Computing
Enable or Disable Intel(R) TCC Mode. When enabled, this will modify system settings to improve real-time performance. The full list of settings and their current state are displayed below when Intel (R) TCC mode is enabled. User's Manual | ASL253... -
Page 25: Ptn3460 Configuration
Select the color depth of the LCD Panel — VESA 24bpp, JEIDA 24bpp, VESA and JEIDA 18 bpp. LVDS Bus Mode Select PTN3460 LVDS BUS Mode : Single LVDS Bus /Dual LVDS Bus Note: The configuration must match the specifications of your LCD Panel in order for the LCD Panel to display properly. User's Manual | ASL253... -
Page 26: It8786 Super Io Configuration ► Serial Port 1 Configuration
BIOS SETTINGS Advanced Advanced IT8786 Super IO Configuration IT8786 Super IO Configuration ► Serial Port 1 Configuration ► Serial Port 2 Configuration Serial Port Serial Port Enable or disable serial port. Enable or disable serial port. User's Manual | ASL253... -
Page 27: It8786 Super Io Configuration ► Serial Port 3 Configuration
BIOS SETTINGS Advanced Advanced IT8786 Super IO Configuration IT8786 Super IO Configuration ► Serial Port 3 Configuration ► Serial Port 4 Configuration Serial Port Serial Port Enable or disable serial port. Enable or disable serial port. User's Manual | ASL253... -
Page 28: It8786 Super Io Configuration ► Serial Port 5 Configuration
BIOS SETTINGS Advanced Advanced IT8786 Super IO Configuration IT8786 Super IO Configuration ► Serial Port 5 Configuration ► Serial Port 6 Configuration Serial Port Serial Port Enable or disable serial port. Enable or disable serial port. User's Manual | ASL253... -
Page 29: It8786 Hardware Monitor
Advanced Serial Port Console Redirection IT8786 Hardware Monitor This section displays the system’s health information, i.e. voltage readings, CPU and system temperatures, and fan speed readings Case Open Enable or disable the case open detection function. User's Manual | ASL253... -
Page 30: Serial Port Console Redirection ► Console Redirection Settings
Set the number of times the presence of media will be checked. Use either +/- or numeric Select flow control type: None or Hardware RTS/CTS. Flow Control is for RS485 mode and is keys to set the value. only supported by Serial Port 1 (COM1). User's Manual | ASL253... -
Page 31: Usb Power Control
Chapter 3 BIOS SETTINGS Advanced USB Power Control Server CA Configuration 5_Dual: Support system wake up from S3/S4 by USB KB&MS 5V: No support system wake up from S3/54 by USB KB&MS User's Manual | ASL253... -
Page 32: Chipset
Chapter 3 BIOS SETTINGS X Chipset Chipset System Agent (SA) Configuration Please select a submenu and press Enter. The submenus are detailed in the following pages. User's Manual | ASL253... -
Page 33: System Agent (Sa) Configuration► Memory Configuration
► Memory Configuration PCI Express Configuration In-Band ECC Support PCI Express Configuration Settings Enable/Disable In-Band ECC. Will be enabled if memory has symmetric configuration SATA Configuration SATA Device Otpions Settings HD Audio Configuration HD Audio Subsystem Configuration Settings User's Manual | ASL253... -
Page 34: Pch-Io Configuration► Pci Express Configuration
Control the PCI Express Root Port. The mode selection determines how the SATA controller(s) operates. • AHCI This option allows the Serial ATA controller(s) to use AHCI (Advanced Host Controller Interface). Ports Enable or disable the Serial ATA port. User's Manual | ASL253... -
Page 35: Configuration► Hd Audio Configuration
Set the administrator password. To clear the password, input nothing and press enter when a new password is asked. Administrator Password will be required when entering the BIOS. • Disabled HDA will be unconditionally disabled. • Enabled HDA will be unconditionally enabled. User's Manual | ASL253... -
Page 36: Secure Boot
Management menu. Press Enter and a prompt will show up for you to confirm. If “Quiet Boot” is enabled, “BGRT Logo” will show up for configuration. Key Management Enables expert users to modify Secure Boot Policy variables without full authentication. User's Manual | ASL253... -
Page 37: Save & Exit
Select this option to save BIOS configuration settings to a USB flash device. • Restore Setting from file This field will appear only when a USB flash device is detected. Select this field to restore set-ting from the USB flash device. User's Manual | ASL253... -
Page 38: Chapter 4 - Out Of Band Setup (* Option By Project Support)
► Remote hardware monitor log ► Recovery (Factory Mode) ► Remote BIOS setup & uefi shell (serial over lan) ► Remote BIOS update SPI-NAND ► Remote BIOS update SOL & DFI USB-Storage ► Change OOB IP address User's Manual | ASL253... -
Page 39: Asl253 Cbmc
Chapter 4 OUT OF BAND SETUP X ASL253 cBMC LAN3 M.2 B Key User's Manual | ASL253... -
Page 40: Default Password Setting
The default password is OOB MAC address -1. If there are letters from A to F, make sure they are all uppercase letters. For example 1: 000129000001-1 --> 000129000000 For example 2: 000129110000-1 --> 00012910FFFF M.2 B Key User's Manual | ASL253... - Page 41 Setup Lan IP Address - Open Network Status go to Advanced network settings and click Type in the following information, then press OK. Change adapter options, double click Ethernet. IP address: 192.168.10.99 Subnet mask: 255.255.255.0 Note: Remote PC and DFI system shall be in the same network domain. User's Manual | ASL253...
- Page 42 When you enter a default password in Command Prompt, it doesn't appear or show up on the screen. After entering the password, you will see DFI. Then type in /DFI # When it displays you may now start typing in commands for each function. User's Manual | ASL253...
- Page 43 The file will be saved in C:\users\user name\.ssh folder. • For creating a default password, please refer to Default Password Setting - Step • When you enter a default password in Command Prompt, it doesn't appear or show up on the screen. Press Enter User's Manual | ASL253...
- Page 44 • When you enter a default password in Command Prompt, it doesn't appear or show up on the screen. Press Enter Step 4: Please enter the command as follows: ssh root@192.168.10.100 It will log in automatically, no need to enter any password. And then you will see User's Manual | ASL253...
- Page 45 • When you enter a default password in Command Prompt, it doesn't appear or show up on the screen. Step 3: Please enter the command as follows: ssh -i C:\Users\test\.ssh\a4-1c-b4-0a-b0-6a root@192.168.10.100 It will log in automatically, no need to enter any password. And then you will see User's Manual | ASL253...
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Page 46: Remote Control Pc Power On/Off
Chapter 4 OUT OF BAND SETUP X Remote Control PC Power On/Off User's Manual | ASL253... -
Page 47: Pc Power On/Off Status Check
Shell Script : 1. Check the PC power on/off status to make sure the current power status. 2. Type in shell script: ./power_button.sh to power on or power off the PC. 3. Then check the staus again. User's Manual | ASL253... -
Page 48: Perform A Timed Force Shutdown
Numbers means this will force shutdown your PC in xx seconds (waiting time). Default Password Setting - Step Setting it to 5 will shutdown your PC after 5 seconds. ./reset_button.sh ./power_button.sh Shell Script : Shell Script : User's Manual | ASL253... -
Page 49: Remote Hardware Monitor Log (Super I/O)
To start super I/O log: ./sio_start_log.sh YYYY-MM-DD hh:mm:ss hours /DFI/sio_log & Shell Script : For example: ./sio_start_log.sh 2024-05-24 09:00:00:00 24 /DFI/sio_log & Make sure to add the ampersand "&" at the end to run in the background. To stop super I/O log: ./sio_stop_log.sh... -
Page 50: How To Export Super I/O Logs From Oob
To export super I/O log, please type in the following command. Please complete before entering the following command. Default Password Setting - Step scp -r root@192.168.10.100:/DFI/sio_log C:\Users\username\.ssh Shell Script : For example: scp -r root@192.168.10.100:/DFI/sio_log C:\Users\yili.pan\.ssh The log file is saved in C drive. User's Manual | ASL253... -
Page 51: Using Usb Storage / Microsd Card To Run Actions
The instructions are as follows : If file operations are performed via a MicroSD card under OOB, need to refresh windows to update. To update a USB flash drive, please execute a shell script as following: ./refresh_uSD.sh /dev/mmcblk0p1 Shell Script : User's Manual | ASL253... -
Page 52: Bios
Please fast forward the video to 1:31 and follow the steps of how to request the BIOS files from DFI. Step 2: Copy BIOS bin file to its corresponding users folder in C drive. User's Manual | ASL253... - Page 53 Shell Script : root@192.168.10.100's password: Note: For creating a default password, please refer to Default Password Setting - Step Refresh DFI USB storage to notify windows ssh root@192.168.10.100 ./DFI/refresh_usb_storage.sh Shell Script : Step 4: Run SSH command: Please type in the information as follows: C:\users\user name>...
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Page 54: Remote Bios Update (Via Teraterm)
Chapter 4 OUT OF BAND SETUP Remote BIOS Update (Via Teraterm) ・ ・ Remote BIOS Update (SOL & DFI USB-Storage) Remote BIOS Setup & UEFI shell (Serial Over Lan) User's Manual | ASL253... -
Page 55: Check Bios Set Up From Usb Storage
USB Storage is exist, Please eject it. If BIOS set up is on USB storage, it shows This is USB uSD, Please execute eject_uSD.sh. If BIOS set up is on MircoSD, it shows ./eject_uSD.sh and execute ./insert_usb_storage.sh and then execute User's Manual | ASL253... - Page 56 BIOS files from DFI. Step 2: TeraTerm is already included in the DFI system. After successfully booting to OOB, you will see a USB flash drive in the DFI system. • How to Access BIOS Setup Menu When Power on Please copy the teraterm folder from the USB flash drive to the computer where you want to operate the OOB.
- Page 57 When system power is on, press "ESC" key in the teraterm window. When there is no error message displayed, the BIOS update will be completed successfully. Boot from DFI USB-Storage device &Update BIOS in uefi mode Save & Exit ---> UEFI: DFI USB-Storage...
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Page 58: Oob Ip Address Change
Please open a new window to login new IP address and run command prompts. After the network changes, make sure it should be in the same network domain as OOB. Open a new window to run command Close a frozen window prompts with new IP address. User's Manual | ASL253... -
Page 59: Console Redirection
To fix the problme, please navigate to C:\Program Files (x86)\teraterm to look for a TTL file named 'telnet.ttl.' This file needs to be modified. After that, Console Redirection has been updated successfully. Change to the new IP address User's Manual | ASL253...
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