DFI EC102-XNX User manual

EC102-XNX
Vision Embedded System
User’s Manual
ver.0_-_7-1521_19-23
Preliminary

2User's Manual | EC102-XNX
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.
© 2021. 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
compliance 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 | EC102-XNX
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Specifications ......................................................................................................................... 6
Chapter 2 - Hardware Installation................................................................................................7
Overview..................................................................................................................................7
Front Panel (4 x LAN, 2 x USB) ......................................................................................7
Block Diagram ........................................................................................................................ 9
Board Layout.........................................................................................................................10
Front Side .......................................................................................................................10
System Memory ...................................................................................................................11
Installing the SO-DIMM Module ...................................................................................11
I/O Ports................................................................................................................................13
Graphics Display............................................................................................................13
USB Ports .......................................................................................................................13
RJ45 LAN Ports .............................................................................................................14
Micro SD Card Slot........................................................................................................14
Battery ............................................................................................................................15
Fan Power and Control .................................................................................................15
Expansion Slots - MIPI camera module connector ....................................................16
Expansion Slots - 20 Pin GPIO expansion...................................................................17
OTG programming recovery..........................................................................................17
Force recovery ...............................................................................................................18
Power control button.....................................................................................................18
Fan PWM controller / Auto Power on..........................................................................19
Chapter 3 - First-time Use & Maintenance................................................................................20
First-time Use .......................................................................................................................20
Force Recovery Mode ..........................................................................................................20

4User's Manual | EC102-XNX
About this Manual
This manual can be downloaded from the website. The manual is subject to change and up-
date without notice, and may be based on editions that do not resemble your actual products.
Please visit our website or contact our sales representatives for the latest editions.
Warranty
1. Warranty does not cover damages or failures that arised 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 consequencial damages to
the product that has been modified or altered.
About the 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.
• One EC102-XNX
The system 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.
Optional Items
The system 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 | EC102-XNX
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 | EC102-XNX
Chapter 1 - Introduction
X Specifications
NVIDIA GPU SoC
MODULE GPU NVIDIA® Jetson Xavier™ NX module
STORAGE External 1 x micro-SD card slot
EXPANSION GPIO 20 pins:
1 x 3.3V UART
2 x I2C
9 x GPIOs
ETHERNET Interface 1 x GbE RJ-45
LED Indicators 1 x Power LED
1 x Recovery LED
RGB tri-color LED
I/O Ethernet 1 x GbE RJ-45
Display 1 x HDMI 2.0a/b Type-A HDMI: resolution up to 3840 x 2160 @ 60Hz
USB 1 x USB 2.0 Micro-B for Recovery
2 x USB 3.0 Type-A (USB 3.2 Gen1 x 1)
1 x mPCIe (Host Interface: USB 2.0)
Buttons 1 x Power Button
1 x Recovery Button
(Internal) MIPI Camera
Inputs 2 x 2 Lane MIPI CSI-2, 15 pin FPC 1mm Pitch Connector (Compatible on NVIDIA® Jet-
sonXavier™NX Developer Kit)
1 x 4 Lane MIPI CSI-2, 36 pin FPC 0.5mm Pitch Connector
WATCHDOG TIMER Output & Interval System Reset, Programmable via Software from 1 to 255 Seconds
POWER Type 12V/5A
(9V~19V is recommended)
RTC Battery Support RTC Battery and Battery Life Monitoring by MCU
COOLING Fan Heat sink with fan
ENVIRONMENT Operating Temperature 0°C ~ 60°C
Storage Temperature -40°C ~ 85°C
Relative Humidity Relative Humidity 40 °C @ 95%, Non-Condensing
MECHANICAL Dimensions
(W x H x D) 91.4mm(W) x 70mm(H) x 76.6mm(D)
(3.60” x 2.76” x 3.02”)
Weight 480g
STANDARDS AND
CERTIFICATIONS Certification CE, FCC

7
Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Chapter 2 - Hardware Installation
X Overview
Front Panel (4 x LAN, 2 x USB)
USB 3.0
GbE HDMI OUT
POWER
RECOVERY
SYSTEM Light and Power Light
DC-in

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
MicroSD
Card

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
X Block Diagram
NVIDIA Jetson Nano /
Jetson Xavier NX
GBE_MDI
USB1
USB0
SDMMC
DP1/HDMI
UART1
GPIOS/Control
20pin I/O
Expansion
CSI4
CSI2
CSI0
VDD_IN
3.5mm Pitch
Wire-to-Board Screw
Power Terminal
MIPI 2LAN
MIPI 2LAN
MIPI 4LAN
MINI54
HDMI
type A
micro
SD card
micro
USB 2.0
GBE
with OTG
USB3.0
TYPE A
HUB
HDMI 2.0
9~19V

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
X Board Layout
Front Side
MIPI camera module connector GbE
OTG programming recovery 20 Pin GPIO expansion
HDMI output connector RTC battery for module
USB 3.1 Gen 1 Type Micro SD Card
Fan PWM controller / Auto Power on MIPI camera module connector
RECOVERY button POWER on button
J4 J10
J7 J8
J12 J6
J11 J13
SW5 J5
SW3 SW4
1
ON
2 3 4
J4 J5 J13
J6
J8
J10
J11
J12
J7
SW5
DDR4_1 SODIMM
J1
J2
J3
MIPI camera module connector
SOCKET_DDR4
Fan Power Connector
J1
J2
J3
SW3 SW4

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
DDR4_1 SODIMM
X System Memory
Memory Slot
The system board supports the following memory interface.
Single Channel (SC)
Data will be accessed in chunks of 64 bits from the memory channels.
Installing the SO-DIMM Module
Before installing the memory module, please make sure that the following safety cautions are
well-attended.
1. Make sure the PC and all other peripheral devices connected to it has been powered
down.
2. Disconnect all power cords and cables.
3. Locate the SO-DIMM socket on the system board
4. Make sure the notch on memory card is aligned to the key on the socket.
Notch
Retention Notch
Key
Socket Top View
DDR3 SO-DIMM
Retention Clip
45°
Step 1
Step 2
Step 3

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Please follow the steps below to install the memory card into the socket.
Step 1:
Insert the memory card into the
slot while making sure 1) the
notch and the key are aligned,
and 2) the non-connector end
rises approximately 45 degrees
horizontally. Press the card firmly
into the socket while applying and
maintaining even pressure on both
ends.
Step 2:
Press the end of the card far from
the socket down while making
sure the retention notch and the
clip align as indicated by the dot-
ted line in the illustration. If the
retention notch and the clip do not
align, please remove the card and
re-insert it. Press the card all the
way down.
Step 3:
The clips snap automatically and
abruptly to the retention notches
of the card sounding a distinctive
click, and lock the card in place.
Inspect that the clip sits in the
notch. If not, please pull the clips
outward, release and remove the
card, and mount it again.
Notch
Retention Notch
Key
Socket Top View
DDR3 SO-DIMM
Retention Clip
45°
Step 1
Step 2
Step 3
System Memory

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
X I/O Ports
Graphics Display
HDMI
The HDMI port which carries both digital audio and video signals is used to connect a LCD
monitor or digital TV that has the HDMI port.
USB Ports
USB 3.0
USB allows data exchange between your computer and a wide range of simultaneously acces-
sible external Plug and Play peripherals.

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
I/O Ports
RJ45 LAN Ports
The LAN port allows the system board to connect to a local area network by means of a net-
work hub.
I/O Ports
Micro SD Card Slot
For MicroSD Card.

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Battery
The battery supplies power to the real-time clock and CMOS memory as an auxiliary source of
power when the main power is shut off.
Safety Measures
• There exists explosion hazard if the battery is incorrectly installed.
• Replace only with the same or equivalent type recommended by the manufacturer.
• Dispose of used batteries according to local ordinances.
I/O Ports
Fan Power and Control
The fan connector is used to power a cooling fan. Cooling fans will provide adequate airflow
throughout the chassis to prevent overheating the CPU and system board components. The
4-pin fans provide PWM to modulate fan speed.
I/O Ports
DDR4_1 SODIMM
Pin Define
1GND
2Power +5V
3FAN_TACH
4FAN_PWM
Fan Pin Assignment
Pin Define
13V Power
2GND
Battery Pin Assignment

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Expansion Slots - MIPI camera module connector
I/O Ports
DDR4_1 SODIMM
Pin Define Pin Define
1+5V MIPI 19 GND
2+5V MIPI 20 CSI4_D2_P
3+1V8 21 CSI4_D3_N
4+3.3V MIPI 22 GND
5+3.3V MIPI 23 N/A
6+3.3V MIPI 24 N/A
7GND 25 N/A
8CSI4_D0_P 26 MIPI4_PWDN
9CSI4_D0_N 27 CSI4_I2C_SDA
10 GND 28 CSI4_I2C_SCL
11 CSI4_CLK_P 29 GND
12 CSI_CLK_N 30 N/A
13 GND 31 N/A
14 GND 32 N/A
15 CSI4_D1_N 33 N/A
16 GND 34 GND
17 CSI4_D2_P 35 CAM4_MCLK
18 CSI4_D3_P 36 GND
Pin Assignment

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Expansion Slots - 20 Pin GPIO expansion
2x I2C, 1x UART, 9x GPIOs
I/O Ports
Pin Define Address Pin Define Address
1+3V3 2+5V
3GND 4GND
5I2C1_SDA /dev/i2c-1 6UART2_TXD_3V3 Debug Console
/dev/ttyS0
7I2C1_SCL 8UART2_RXD_3V3
9I2C0_SDA /dev/i2c-0 10 GND
11 I2C0_SCL 12 SPI1_SCK gpio14
13 I2S0_SCLK gpio79 14 SPI1_MISO gpio13
15 I2S0_DOUT gpio78 16 SPI1_MOSI gpio12
17 I2S0_DIN gpio77 18 SPI1_CS0 gpio15
19 I2S0_FS gpio76 20 SPI1_CS1 gpio232
Pin Assignment
OTG programming recovery
This port is for OTG programming, any USB standard Micro type interface cable or device fits
the port.
I/O Ports

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Force recovery
This button is for force recovery.
I/O Ports
Power control button
This button is for Power ON/OFF the machine.
I/O Ports
1
ON
2 3 4
1
ON
2 3 4

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Chapter 2
HARDWARE INSTALLATION
User's Manual | EC102-XNX
Fan PWM controller / Auto Power on
I/O Ports
Switch Define (OFF) ON
1Fan PWM controller Fan always on
2N/A N/A
3Auto power on Auto power on disabled
4Test mode off Test mode on (for the factory use)
Switch
1
ON
2 3 4

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Chapter 3
First-time Use & Maintenance
User's Manual | EC102-XNX
Chapter 3 - First-time Use & Maintenance
X First-time Use
1. Check and ensure all the external system power supplies are turned off.
2. Install the Micro USB2.0 cable to OTG connector.
3. Press and hold on the Recover button.
4. Connect the power cord to the box PC.
X Force Recovery Mode
USB 3.l/OTG port can be used to re-program NVIDIA® Jetson NANO /Xavier NX by using the
other host system running NVIDIA Jetpack, as the procedure described below.
1. Power off the system. Ensure the system power must be completely OFF, instead of staying
in the suspend mode or the sleep mode.
2. Connect a USB cable from OTG USB port to the other host system which will be used to re-
program the new system file into NVIDIA® Jetson Nano/ Xavier NX.
3. Press and hold down Force Recovery Button and then power on the carrier board.
4. After three seconds, release Force Recovery Button.
5. NVIDIA® Jetson Nano/Xavier NX will show up on the USB list of the host system as a new
NVIDIA target device.
6. After the system software is updated successfully, please ensure to power off the system. A
clean power-on will then revert OTG port back to the host mode.