DFI EC900-8MM User manual

EC900-8MM/ EC910-8MM
NXP i.MX8M Mini Processor
Ruggedized Fanless Embedded System
User’s Manual
© January 04, 2023 DFI Inc.
Model for EC900-8MM

2User's Manual | EC900-8MM / EC910-8MM
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.
© 2022. 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 B
This equipment has been tested and found to comply with the limits for a Class B 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.

3User's Manual | EC900-8MM / EC910-8MM
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Overview.................................................................................................................................. 6
EC900-8MM...................................................................................................................... 6
EC910-8MM...................................................................................................................... 7
Specifications (EC900-8MM & EC910-8MM)....................................................................... 8
Dimensions ...........................................................................................................................10
EC900-8MM....................................................................................................................10
EC910-8MM....................................................................................................................10
Key Features .........................................................................................................................10
Chapter 2 - System Settings ......................................................................................................11
Jumper Settings ...................................................................................................................11
IOJP1 ..............................................................................................................................11
PIN Assignment....................................................................................................................11
Digital I/O Connector.....................................................................................................11
COM ( For EC910-8MM)................................................................................................11
TSJ4 Debug ...................................................................................................................12
AUJP1.............................................................................................................................12
DCN1/DC Jack .............................................................................................................12
TSJ1/DIO .......................................................................................................................12
TSJ2 & TSJ3 -RS232 .....................................................................................................13
CBCN1/CAN ..................................................................................................................13
FPJP1 ...........................................................................................................................13
Chapter 3 - Hardware Installation..............................................................................................14
Removing the Chassis Cover ..............................................................................................14
Installing an M.2 Card .........................................................................................................14
Installing an Antenna ...........................................................................................................15
Mounting Options.................................................................................................................15

4User's Manual | EC900-8MM / EC910-8MM
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 System unit
• 1 10-Pole Terminal Block for RS-422/4-bit DIO
• 1 2-Pole Terminal Block for RS-485
• 2-Pole Terminal Block for Power Input
• DIN Rail Bracket/Screw Pack
• Quick Installation Guide
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.

5User's Manual | EC900-8MM / EC910-8MM
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.

6
Chapter 1
INTRODUCTION
User's Manual | EC900-8MM / EC910-8MM
Chapter 1 - Introduction
XOverview
EC900-8MM
Front View
Left View
Rear View
Right View
7
9
123
456
Status LED
Reset Button
COM (RS485)
LAN 1 & LAN 2 USB 2.0
DC IN
7
HDMI
8
A terminal block:
RS422 (4-pin)
Digital IO (4-pin)
Power (1-pin)
Ground (1-pin)
1
2
345
6
910
Antenna Hole
DIN-rail Mount
8
10

7
Chapter 1
INTRODUCTION
User's Manual | EC900-8MM / EC910-8MM
EC910-8MM
Front View
Left View
Rear View
Right View
10
Status LED DC IN
3
10
11
Antenna Hole
DIN-rail Mount
1
8
9
A terminal block:
RS422 (4-pin)
Digital IO (4-pin)
Power (1-pin)
Ground (1-pin)
9
2456
7
123
456
Reset Button
COM (RS485)
HDMI
COM LAN 1 & LAN 2
7
USB 2.0
8
11

8
Chapter 1
INTRODUCTION
User's Manual | EC900-8MM / EC910-8MM
XSpecifications (EC900-8MM & EC910-8MM)
SYSTEM Processor I.MX8M mini
Quad core, VPU/HDR10/GPU,1.6/1.8Ghz, Commercial temp
Memory LPDDR4 die size, up to 8GB (Default 1GB)
DISPLAY Display 1 x HDMI
HDMI: resolution up to 1920x1080 @ 60 Hz
Single Display HDMI
STORAGE External /
Internal
eMMC up to 64GB (Default 8GB)
Micro-SD Card Socket
EXPANSION Interface 1 x M.2, E key 2230 (PCIe/USB)
1 x M.2, B key 3052/2242(PCIe/USB)
1 x Nano SIM slot
ETHERNET Controller 1 x ATHEROS Ethernet Controller RTL8211 (10/100/1000Mbps)
1 x Ethernet Controller (10/100/1000Mbps)
LED Indicators 1 x Status LED
I/O
Ethernet 2 x GbE (RJ-45)
Serial
EC900-8MM : 1 x RS-485 (2-pole terminal block)
1 x RS-422 (10-pole terminal block)
EC910-8MM : 1 x RS-485 (2-pole terminal block)
1 x RS-422 (10-pole terminal block)
2 x RS-232 (DB9)
USB 2 x USB 2.0 (type A)
Display 1 x HDMI
Button 1 x Power Reset Button
Wi-Fi Antenna 2 x Antenna Hole
DIO 4-bit DIO (10-pole terminal block)
INTERNAL I/O USB 1 x USB 2.0
1 x OTG USB Type C
Serial EC910-8MM : 2 x RS-232
WATCHDOG
TIMER
Output &
Interval System Reset, Programmable via Software from 1 to 255 Seconds
POWER Type Wide Range 9~36V
Connector 2-Pole Terminal Block
OS SUPPORT OS Support Yocto 3.3, Kernel 5.10.72

9
Chapter 1
INTRODUCTION
User's Manual | EC900-8MM / EC910-8MM
MECHANISM
Construction I.MX8M mini
Quad core, VPU/HDR10/GPU,1.6/1.8Ghz, Commercial temp
Mounting LPDDR4 die size, up to 8GB (Default 1GB)
Dimensions
(WxHxD) EC900-8MM : 145mm x 34mm x 96.4mm
EC910-8MM : 145mm x 40mm x 96mm
Weight EC900-8MM : 0.45kg
EC910-8MM : 0.55kg
ENVIRONMENT Operating
Temperature
-20 to 60°C
-40 to 70°C (available upon request)
Storage Tem-
perature -40 to 85°C
Relative
Humidity 10 to 95% RH (non-condensing)
STANDARDS
AND
CERTIFICA-
TIONS
Shock Operating: 3G, 11ms
Non-Operating: 5G, 11ms
Vibration Operating: Random 5~500Hz, IEC68-2-64 (3G)
Non-Operating: Sine 10~500Hz, IEC68-2-6 (3G)
Certifications CE, FCC class A

10
Chapter 1
INTRODUCTION
User's Manual | EC900-8MM / EC910-8MM
XDimensions XKey Features
NXP i.MX8M Mini Platform:
Quad Core Max.1.8GHz
High Speed Memory Down:
LPDDR4 3200MHz
Multiple Expansions:
M.2 support, WiFi/BT, LTE, 5G
Rich I/O:
2 GbE LAN, 2 USB, 4bit DIO,RS422, RS485
Wide Voltage:
Support 9~36VDC
EC900-8MM
EC910-8MM