Kontron AL i.MX8M Mini User manual


USER GUIDE
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AL i.MX8M Mini
Doc. Rev. 2.0

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
AL I.MX8M MINI - USER GUIDE
Disclaimer
Kontron Electronics would like to point out that the information contained in this user guide may be subject to alteration,
particularly as a result of the constant upgrading of Kontron Electronics products. This document does not entail any guarantee on
the part of Kontron Electronics with respect to technical processes described in the user guide or any product characteristics set
out in the user guide. Kontron Electronics assumes no responsibility or liability for the use of the described product(s), conveys no
license or title under any patent, copyright or mask work rights to these products and makes no representations or warranties that
these products are free from patent, copyright or mask work right infringement unless otherwise specified. Applications that are
described in this user guide are for illustration purposes only. Kontron Electronics makes no representation or warranty that such
application will be suitable for the specified use without further testing or modification. Kontron Electronics expressly informs the
user that this user guide only contains a general description of processes and instructions which may not be applicable in every
individual case. In cases of doubt, please contact Kontron Electronics.
This user guide is protected by copyright. All rights are reserved by Kontron Electronics. No part of this document may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any
form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the express written permission of
Kontron Electronics. Kontron Electronics points out that the information contained in this user guide is constantly being updated in
line with the technical alterations and improvements made by Kontron Electronics to the products and thus this user guide only
reflects the technical status of the products by Kontron Electronics at the time of publishing.
Brand and product names are trademarks or registered trademarks of their respective owners.
©2021 by Kontron Electronics GmbH
YOUR CONTACT
Kontron Electronics GmbH
Max-Planck-Str. 6
72636 Frickenhausen
Germany
www.kontron-electronics.de
GLOBAL HEADQUARTERS
Kontron Europe GmbH
Gutenbergstr. 2
85737 Ismaning
Germany
www.kontron.com

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Intended Use
THIS DEVICE AND ASSOCIATED SOFTWARE ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR RESALE
FOR THE OPERATION OF NUCLEAR FACILITIES, THE NAVIGATION, CONTROL OR COMMUNICATION SYSTEMS FOR
AIRCRAFT OR OTHER TRANSPORTATION, AIR TRAFFIC CONTROL, LIFE SUPPORT OR LIFE SUSTAINING APPLICATIONS,
WEAPONS SYSTEMS, OR ANY OTHER APPLICATION IN A HAZARDOUS ENVIRONMENT, OR REQUIRING FAIL-SAFE
PERFORMANCE, OR IN WHICH THE FAILURE OF PRODUCTS COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR
SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE (COLLECTIVELY, "HIGH RISK APPLICATIONS").
You understand and agree that your use of Kontron Electronics devices as a component in High-Risk Applications is
entirely at your risk. To minimize the risks associated with your products and applications, you should provide
adequate design and operating safeguards. You are solely responsible for compliance with all legal, regulatory,
safety, and security related requirements concerning your products. You are responsible to ensure that your
systems (and any Kontron Electronics hardware or software components incorporated in your systems) meet all
applicable requirements. Unless otherwise stated in the product documentation, the Kontron Electronics device is not
provided with error-tolerance capabilities and cannot therefore be deemed as being engineered, manufactured or
setup to be compliant for implementation or for resale as device in High-Risk Applications. All application and safety
related information in this document (including application descriptions, suggested safety measures, suggested
Kontron Electronics products, and other materials) is provided for reference only

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Revision History
Revision
Brief Description of Changes
Date of Issue
Author/
Editor
Rev. 0.1
Initial version
2020-12-08
Arn
Rev. 1.0
Final release
2020-12-21
Arn
Rev. 2.0
ETH LED, Fotos getauscht, Formatierungs- und
Textkorrekturen
2021-12-16
We
Terms and Conditions
Kontron Electronics warrants products in accordance with defined regional warranty periods. For more information about warranty
compliance and conformity, and the warranty period in your region, visit https://www.kontron-electronics.de/downloads/.
For contact information, refer to the corporate offices contact information on the last page of this user guide or visit our website
CONTACT US.
Customer Support
Find Kontron Electronics contacts by visiting: http://www.kontron-electronics.de.
Customer Comments
If you have any difficulties using this user guide, discover an error, or just want to provide some feedback, contact
[email protected]. Detail any errors you find. We will correct the errors or problems as soon as possible
and provide the revised user guide.

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Symbols
The following symbols may be used in this user guide
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
NOTICE indicates a property damage message.
CAUTION indicates a hazardous situation which, if not avoided,
may result in minor or moderate injury.
Electric Shock!
This symbol and title warn of hazards due to electrical shocks (> 60 V) when touching products or parts
of products. Failure to observe the precautions indicated and/or prescribed by the law may endanger
your life/health and/or result in damage to your material.
ESD Sensitive Device!
This symbol and title inform that the electronic boards and their components are sensitive to static
electricity. Care must always therefore be taken during all handling operations and inspections of this
product in order to ensure product integrity.
HOT Surface!
Do NOT touch! Allow to cool before servicing.
Laser!
This symbol informs of the risk of exposure to laser beam and light emitting devices (LEDs) from an
electrical device. Eye protection per manufacturer notice shall review before servicing.
This symbol indicates general information about the product and the user guide.
This symbol also indicates detail information about the specific product configuration.
This symbol precedes helpful hints and tips for daily use.

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For Your Safety
Your new Kontron Electronics product was developed and tested carefully to provide all features necessary to ensure its
compliance with electrical safety requirements. It was also designed for a long fault-free life. However, the life expectancy of your
product can be drastically reduced by improper treatment during unpacking and installation. Therefore, in the interest of your
own safety and of the correct operation of your new Kontron Electronics product, you are requested to conform with the
following guidelines.
High Voltage Safety Instructions
As a precaution and in case of danger, the power connector must be easily accessible. The power connector is the product’s main
disconnect device.
Warning
All operations on this product must be carried out by sufficiently skilled personnel only.
Electric Shock!
Before installing a non-hot-swappable Kontron Electronics product into a system always ensure that the
power is switched off. This also applies to the installation of piggybacks. Serious electrical shock hazards
can exist during all installation, repair, and maintenance operations on this product. Therefore, always
unplug the power cable and any other cables which provide external voltages before performing any
work on this product.
Earth ground connection to vehicle’s chassis or a central grounding point shall remain connected. The
earth ground cable shall be the last cable to be disconnected or the first cable to be connected when
performing installation or removal procedures on this product.

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General Safety Instructions for IT Equipment
Please read this chapter carefully and take careful note of the instructions that have been compiled for
your safety and to ensure to apply in accordance with intended regulations. If the following general
safety instructions are not observed, it could lead to injuries to the operator and/or damage of the
product; in cases of non-observance of the instructions Kontron Electronics is exempt from accident
liability, this also applies during the warranty period.
The product has been built and tested according to the basic safety requirements for low voltage (LVD) applications and has left
the manufacturer in safety-related, flawless condition. To maintain this condition and to ensure safe operation, the operator must
not only observe the correct operating conditions for the product but also the following general safety instructions:
The product must be used as specified in the product documentation, in which the instructions for safety for the product and
for the operator are described. These contain guidelines for setting up, installation and assembly, maintenance, transport and
storage.
The on-site electrical installation must meet the requirements of the country's specific local regulations.
If a power cable comes with the product, only this cable should be used. Do not use an extension cable to connect the product.
To guarantee that enough air circulation is available to cool the product, ensure that if the product has ventilation openings
the openings are not covered or blocked. If an air filter is provided, this should be cleaned regularly. Additionally, make sure
the system is well ventilated by observing if heat-dissipating elements are covered/obstructed by objects as this can cause a
build-up of heat and stop heat from being dispersed into the ambient environment.
Do not place the system close to heat sources or damp places.
Only products or parts which fulfil the requirements of SELV circuits (Safety Extra Low Voltage) as stipulated by
IEC 60950-1 may be connected to the available interfaces.
Before opening the product, make sure that the product is disconnected from the mains. Complete disconnection is only
possible if the power cable is disconnected and removed. Ensure that there is free and easy access to enable disconnection.
If the product is opened for the insertion or removal of expansion devices (depending on the configuration of the system), this
may only be carried out by qualified persons.
If extensions are made to the product, the following must be observed:
All effective legal regulations and all technical data for the expansion devices are adhered to.
The power consumption of any expansion devices does not exceed the specified limitations.
The current consumption of the system does not exceed the value stated on the product label.
Only original accessories that have been approved by Kontron Electronics can be used.
Please note: safe operation is no longer possible when any of the following applies:
Damage is visible.
The device no longer functions.
In these cases, the device must be switched off and it must be ensured that the device can no longer be operated.

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Additional Safety Instructions for DC Power Supply Circuits
To guarantee safe operation of products with DC power supply voltages larger than 60 volts DC or a power consumption
larger than 240 VA, please observe that:
The product is set up, installed and operated in a room or enclosure marked with “RESTRICTED ACCESS”, if there are no
safety messages on product as safety signs and labels on the product itself.
No cables or parts without insulation in electrical circuits with dangerous voltage or power should be touched directly or
indirectly.
A reliable protective earthing connection is provided.
A suitable, easily accessible disconnecting product is used in the application (e.g. overcurrent protective product), if the
product itself is not disconnectable.
A disconnect product, if provided in or as part of the equipment, shall disconnect both poles simultaneously.
Interconnecting power circuits of different products causes no electrical hazards.
A sufficient dimensioning of the power cable wires must be selected –according to the maximum electrical specifications on
the product label –as stipulated by EN 60950-1 or VDE 0100 or EN 60204 or UL 508 regulations.
The product does not generally fulfil the requirements for "centralized DC power systems" (UL 60950-1, Annex NAB; D2) and
therefore may not be connected to such products!
Special Handling and Unpacking Instruction
ESD Sensitive Device!
Electronic boards and their components are sensitive to static electricity. Therefore, care must be taken
during all handling operations and inspections of this product, in order to ensure product integrity at all
times.
Do not handle this product out of its protective enclosure while it is not used for operational purposes unless it is otherwise
protected.
Whenever possible, unpack or pack this product only at EOS/ESD safe workstations. Where a safe workstation is not guaranteed,
it is important for the user to be electrically discharged before touching the product with his/her hands or tools. This is most
easily done by touching a metal part of your system housing.
It is particularly important to observe standard anti-static precautions when changing piggybacks, ROM devices, SD cards, jumper
settings etc. If the product contains batteries for RTC or memory backup, ensure that the product is not placed on conductive
surfaces, including anti-static plastics or sponges. They can cause short circuits and damage the batteries or conductive circuits on
the product.

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Lithium Battery Precautions
If your product is equipped with a lithium battery, take the following precautions when replacing the battery.
Danger of explosion if the battery is replaced incorrectly.
Replace only with same or equivalent battery type recommended by the manufacturer.
Dispose of used batteries according to the manufacturer’s instructions.
General Instructions on Usage
In order to maintain Kontron Electronics’ product warranty, this product must not be altered or modified in any way. Changes or
modifications to the product, that are not explicitly approved by Kontron Electronics and described in this user guide or received
from Kontron Electronics Support as a special handling instruction, will void your warranty.
This product should only be installed in or connected to systems that fulfil all necessary technical and specific environmental
requirements. This also applies to the operational temperature range of the specific board version that must not be exceeded. If
batteries are present, their temperature restrictions must be considered.
In performing all necessary installation and application operations, only follow the instructions supplied by the present user guide.
Keep all the original packaging material for future storage or warranty shipments. If it is necessary to store or ship the product
then re-pack it in the same manner as it was delivered.
Special care is necessary when handling or unpacking the product. See Special Handling and Unpacking Instruction.
Quality and Environmental Management
Kontron Electronics aims to deliver reliable high-end products designed and built for quality, and aims to complying with
environmental laws, regulations, and other environmentally oriented requirements. For more information regarding Kontron
Electronics’ quality and environmental responsibilities, visit http://www.kontron.com/about-kontron/corporate-
responsibility/quality-management.
Disposal and Recycling
Kontron Electronics’ products are manufactured to satisfy environmental protection requirements where possible. Many of the
components used are capable of being recycled. Final disposal of this product after its service life must be accomplished in
accordance with applicable country, state, or local laws or regulations.
WEEE Compliance
The Waste Electrical and Electronic Equipment (WEEE) Directive aims to:
Reduce waste arising from electrical and electronic equipment (EEE).
Make producers of EEE responsible for the environmental impact of their products, especially when the product become
waste.
Encourage separate collection and subsequent treatment, reuse, recovery, recycling and sound environmental disposal of
EEE.
Improve the environmental performance of all those involved during the lifecycle of EEE.
Environmental protection is a high priority with Kontron Electronics.
Kontron Electronics follows the WEEE directive.
You are encouraged to return our products for proper disposal.

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Table of Contents
Symbols .............................................................................................................................................................................................6
For Your Safety ..................................................................................................................................................................................7
High Voltage Safety Instructions .......................................................................................................................................................7
Special Handling and Unpacking Instruction .....................................................................................................................................9
Lithium Battery Precautions............................................................................................................................................................10
General Instructions on Usage ........................................................................................................................................................10
Quality and Environmental Management .......................................................................................................................................10
Disposal and Recycling.....................................................................................................................................................................10
WEEE Compliance............................................................................................................................................................................10
Table of Contents ............................................................................................................................................................................11
List of Tables....................................................................................................................................................................................13
List of Figures...................................................................................................................................................................................13
Introduction ........................................................................................................................................................................14
Product Overview.....................................................................................................................................................................14
Ordering Information................................................................................................................................................................15
Accessories ...............................................................................................................................................................................15
Specification........................................................................................................................................................................16
Technical Specification .............................................................................................................................................................16
Mechanical Specification..........................................................................................................................................................16
Power Specification ..................................................................................................................................................................19
2.3.1. Power Consumption ..............................................................................................................................................................19
2.3.2. Functional Earthing System ...................................................................................................................................................21
2.3.3. Environmental Specification..................................................................................................................................................21
Block Diagram...........................................................................................................................................................................22
Connector Description ........................................................................................................................................................23
3.1.1. Power Connector...................................................................................................................................................................24
3.1.2. HDMI Interface ......................................................................................................................................................................24
3.1.3. Ethernet (LAN1, LAN2) Interface ...........................................................................................................................................24
3.1.4. USB 2.0 Interface...................................................................................................................................................................24
3.1.5. RS232 Interface .....................................................................................................................................................................24
3.1.6. RS485 Interface .....................................................................................................................................................................24
3.1.7. CAN Interface.........................................................................................................................................................................24
3.1.8. DIO Interface .........................................................................................................................................................................24
3.1.9. Debug Interface.....................................................................................................................................................................25
3.1.10. USB OTG Interface...............................................................................................................................................................25
3.1.11. MicroSD Card Slot................................................................................................................................................................25
3.1.12. Functional Earth Connector.................................................................................................................................................25
Front Panel Connector Pin Assignments...................................................................................................................................26
3.2.1. Input Power Connector (X1) ..................................................................................................................................................26
3.2.2. HDMI Connector (X5).............................................................................................................................................................26
3.2.3. Ethernet RJ45 Connector (X1001) .........................................................................................................................................27
3.2.4. Ethernet RJ45 Connector (X1101) .........................................................................................................................................27
3.2.5. USB Connector (X9) ...............................................................................................................................................................27
3.2.6. RS232 Connector (X11)..........................................................................................................................................................28
3.2.7. RS485/CAN Connector (X12) .................................................................................................................................................28
3.2.8. DIO Connector (X13)..............................................................................................................................................................28
3.2.9. USB Debug Connector (X3) ....................................................................................................................................................29
3.2.10. USB OTG Connector (X10) ...................................................................................................................................................29
3.2.11. MicroSD Card Slot (X401) ....................................................................................................................................................30
Accessing Components .......................................................................................................................................................31

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Accessing External Components...............................................................................................................................................31
4.1.1. MicroSD Card Slot..................................................................................................................................................................31
Accessing Internal Components ...............................................................................................................................................31
4.2.1. Opening the Chassis ..............................................................................................................................................................31
Thermal Considerations ......................................................................................................................................................32
Installation Instructions ......................................................................................................................................................33
DIN Rail Mounting ....................................................................................................................................................................33
Power Connector......................................................................................................................................................................33
6.2.1. Wiring the DC Mating Power Connector ...............................................................................................................................33
Starting Up ..........................................................................................................................................................................34
Connecting to Power Supply.....................................................................................................................................................34
Operating System (OS) and Drivers ..........................................................................................................................................34
Standards, Certifications and Directives .............................................................................................................................35
Shipment and Unpacking ....................................................................................................................................................36
Packaging..................................................................................................................................................................................36
Unpacking.................................................................................................................................................................................36
Type Label and Product Identification......................................................................................................................................36
Technical Support ...............................................................................................................................................................37
First Steps –Startup-Information Baseboard .........................................................................................................................37
Extended Support...................................................................................................................................................................37
Disclaimer & License Information...........................................................................................................................................37
Storage, Transportation and Maintenance .........................................................................................................................38
Storage ...................................................................................................................................................................................38
Transportation........................................................................................................................................................................38
Maintenance...........................................................................................................................................................................38
11.3.1. Replacing the Lithium Battery .............................................................................................................................................38
Warranty.............................................................................................................................................................................39
Limitation/Exemption from Warranty Obligation ..................................................................................................................39
Disposal...............................................................................................................................................................................40
Appendix..........................................................................................................................................................................................41
List of Acronyms ..............................................................................................................................................................................41
About Kontron Electronics...............................................................................................................................................................42

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List of Tables
Table 1: Scope of Delivery ...............................................................................................................................................................15
Table 2: Accessories.........................................................................................................................................................................15
Table 3: Technical Specification.......................................................................................................................................................16
Table 4: Software Specification .......................................................................................................................................................16
Table 5: Mechanical Specification ...................................................................................................................................................16
Table 6: Power Specification ...........................................................................................................................................................19
Table 7: Power Consumption ..........................................................................................................................................................21
Table 8: Environmental Specification ..............................................................................................................................................21
Table 9: Front Panel Connectors .....................................................................................................................................................23
Table 10: Standards, Certifications and Directives Compliance ......................................................................................................35
Table 11: List of Acronyms...............................................................................................................................................................41
List of Figures
Figure 1: AL i.MX8M Mini ................................................................................................................................................................14
Figure 2: Bottom view .....................................................................................................................................................................17
Figure 3: Front view.........................................................................................................................................................................17
Figure 4: Rear view..........................................................................................................................................................................17
Figure 5: Side views .........................................................................................................................................................................18
Figure 6: Power Tree .......................................................................................................................................................................20
Figure 7: Block Diagram...................................................................................................................................................................22
Figure 8: Front Panel View...............................................................................................................................................................23
Figure 9: UART-USB Adapter ...........................................................................................................................................................29
Figure 10: Phoenix Power Mating Connector..................................................................................................................................33
Figure 11: AL i.MX8M Mini Type Label (Example) ...........................................................................................................................36

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Introduction
This user guide describes the Automation Line AL i.MX8M Mini Quad. New users are recommended to study the installation
instructions within this user guide before switching on the power.
Kontron Electronics’AL i.MX8M Mini is developed specifically for control cabinet applications with flexible DIN rail mounting
positions for use when space is limited. The fanless design ensures a significantly prolonged lifespan and high system availability.
Product Overview
Before working with the AL i.MX8M Mini, Kontron Electronics recommends that users take a few minutes to learn about the
various parts of the AL i.MX8M Mini.
The AL i.MX8M Mini is a flexible industrial grade box computer fanless device designed for use in demanding applications
requiring a flexible rapid rail attachment solution. Based on the i.MX8 (4x Arm® Cortex®-A53, 1x Arm® Cortex®-M4) Quad
processor the AL i.MX8M Mini features long-term availability and supports a varied number of onboard interfaces to enable
connectivity to nearly all applications. A microSD card slot supports memory expansion for flexible data storage.
All variants are available in a robust steel chassis, designed for operation in a DIN rail environment using a vertical orientation.
General features are:
i.MX8 MIMX8MM6CVTKZAA 4x Arm® Cortex®-A53, 1x Arm® Cortex®-M4 Processor
1 GB up to 4 GB LPDDR4 RAM
8 GB up to 64 GB eMMC
External microSD Card Slot
External Interfaces 1x HDMI, 2x Ethernet (1x Gbit/s, 1x 10/100 Mbit/s), 2x USB 2.0, 1x USB OTG, 1x RS232, 1x RS485, 1x CAN,
4x DIO 24 V / 0.8 A
Fanless passive cooling
The AL i.MX8M Mini is intended for 24/7 continuous operation and longtime industrial applications. All components are selected
to ensure a long lifetime.
Figure 1: AL i.MX8M Mini
The AL i.MX8M Mini is designed for operation in a DIN rail environment using a vertical orientation.

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Ordering Information
Check that your delivery is complete, and contains the items listed below. If you discover damaged or missing items, contact your
dealer.
Table 1: Scope of Delivery
Art.-No.
Delivered Item
Description
50099 067
AL i.MX8M Mini Quad 1 GB/8 GB
Corresponding to the ordered product configuration
50099 068
AL i.MX8M Mini Quad 4 GB/32 GB
Corresponding to the ordered product configuration
Other systems on request
Accessories
Table 2: Accessories
Art.-No.
Delivered Item
Description
10600 338
MicroSD Card
MicroSD Card 16 GB
30099 001
Power Supply
External power supply 230 V AC to 24 V DC / 18 W
incl. 2-pin power connector (Phoenix Contact origin no. 1826680)
30099 003
Connector Set
24VDC/RS232/RS485/CAN/DIO
mating connector
Connector set contains:
1x 2-pin power connector
(Phoenix Contact origin no. 1826680)
1x RS232: 8-pin; 1x RS485/CAN: 8-pin; 1x DIO/AIN: 8-pin
(Phoenix Contact origin no. 1844594)
40099 101
USB-UART Adapter
Translates the UART signals provided on the Mini-B USB connector
to USB for connecting the AL i.MX8M Mini to a computer

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Specification
Technical Specification
The AL i.MX8M Mini implements the following mainboard technical specification.
Table 3: Technical Specification
Processor
4x Arm® Cortex®-A53 @1.6 GHz,
1x Arm® Cortex®-M4 @400 MHz, 2D GPU and 3D GPU
System Memory
LPDDR4-RAM 1 GB up to 4 GB
Storage
8 GB eMMC up to 64 GB
2 MB NOR Flash
8 kB EERAM (nvSRAM)
Interfaces
2x USB 2.0, USB A
1x USB OTG, Micro-USB
1x Debug, Mini-B USB
1x 1 Gbit/s, 1x 10/100 Mbit/s Ethernet
1x HDMI
1x RS232, 1x RS485
1x CAN
4x DIO (24 V DC / up to 800 mA)
Expansion Sockets
1x microSD Card Slot
Power
24 V DC ±20 % Input
Table 4: Software Specification
Operating System (OS)
Yocto Linux
BSP documentation and support: https://docs.kontron-electronics.de
Mechanical Specification
Table 5: Mechanical Specification
Dimensions
AL i.MX8M Mini
Width
111 mm (4.37”)
Depth
76 mm (3”)
Height
25 mm (1”)
Weight (chassis only)
Approx. ~0.3 kg (~0.66 lbs.)
Construction
Stainless Steel housing
Mounting
DIN Rail
Color
Stainless Steel
For more detailed mechanical information, refer to the following outline dimensions drawings within this chapter. Each dimension
drawing shows the main external mechanical features such as the position and size of mounting holes for the DIN rail mounting
clamp (measurements in millimetres).
The DIN rail mounting clamp is 7 mm thick.

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Figure 2: Bottom view
Figure 3: Front view
Figure 4: Rear view
DIN rail clamp screw
optional
DIN rail clamp screw
optional

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Figure 5: Side views

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Power Specification
The AL i.MX8M Mini is powered by a 2-pin Input power connector on the front panel and has no internal power supply. The
standard input voltage of 24 V DC is converted internally to supply all other required voltages.
Hot Plugging the power supply is not supported. Hot plugging might damage the board.
Table 6: Power Specification
Nominal Input Voltage
24 V DC
Input Voltage Range
24 V DC ±20 %
Input Power
max. 8 A (connector current)
Output Current 3.3 V
1 A
Output Current 5 V
2 A
Output Current DOUT
2.5 A
Input Power Mating Connector
2-pin Phoenix Contact 180° MC1,5/2-ST-3,5
2.3.1. Power Consumption
The power consumption of the AL i.MX8M Mini depends on the implemented mainboard capacity and external interfaces, for
more information see

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Table 7: Power Consumption.
Figure 6: Power Tree