RTimes X503U User manual

X503U
Product Manual
Realtimes Beijing Technology Co., LTD.
Fax：[phone]
Email: [e-mail]
Web Page: https://www.realtimesai.com
Address: 11th Floor, Block B, 20th Heping Xiyuan, Pingxi Street, Chaoyang
District, Beijing 100013,P.R.China

X503U Reference Manual V3.2
1
Revision History
Revision
Date
Reason for change
Applicable
hardware version
Modified by
V1.0
2017-07
Initial release
V1.0
V2.0
2019-03-21
Manual style template update
V1.0
V3.0
2020-06-18
Add notes and lights
V1.0
V3.1
2020-09-24
Modify interface information and
add line package configuration
V1.0
RT0086
V3.2
2022-1-7
Add software version supporting
instructions
V1.0
RT0086

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X503U Reference Manual V3.2
2
Table of Contents
Product presentation................................................................................................................................................... 6
1INTRODUCTION......................................................................................................................................................... 6
1.1 Features........................................................................................................................................................... 6
1.2 Ordering Information...................................................................................................................................... 7
1.3 Wiring package configuration......................................................................................................................... 7
PRODUCT SPECIFICATIONS................................................................................................................................. 8
1 EXTERNAL INTERFACE FUNCTION AND LOCATION.................................................................................................8
2 CONNECTORS DESCRIPTION..................................................................................................................................9
2.1 Serial connector...............................................................................................................................................9
2.2 GPIO/I2C and button connector...................................................................................................................9
2.3 CAN connector........................................................................................................................................... 10
2.4 WiFi/Bluetooth antenna connection........................................................................................................... 10
2.5 Power input terminal.................................................................................................................................. 11
2.6 Power switch button................................................................................................................................... 11
2.7 LED............................................................................................................................................................ 11
2.8 HDMI connector.........................................................................................................................................11
2.9 Ethernet connector..................................................................................................................................... 11
2.10 USB3.0 connectors................................................................................................................................... 12
2.11 OTG-USB2.0.............................................................................................................................................12
3 PRODUCT SIZE DIAGRAM...........................................................................................................................................13
4 HARDWARE UPDATE HISTORY..............................................................................................................................13
SOFTWARE VERSION SUPPORTING INSTRUCTIONS................................................................................. 14
1 USE..................................................................................................................................................................... 14
1.1 Smart box power on and start...................................................................................................................... 14
1.2 Recovery Mode..................................................................................................................................... 14
2 L4T（LINUX FOR TEGRA ABBREVIATION“L4T”）............................................................................................ 14
3 JETPACK.............................................................................................................................................................. 15
3.1 Jetpack Component summary.....................................................................................................................15
3.2 How to install Jetpack................................................................................................................................ 15
3.3 Sample application..................................................................................................................................... 17
3.4 Developer tools...........................................................................................................................................17
3.5 Documentation........................................................................................................................................... 18
TERMS OF WARRANTY........................................................................................................................................ 19
COPYRIGHT NOTICE............................................................................................................................................ 20

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X503U Reference Manual V3.2
Electronic components and circuits are very sensitive to electrostatic discharge. Although our
company designs anti-static protection for the main interfaces on the card when designing circuit
board products, it is difficult to achieve anti-static safety protection for all components and circuits.
Therefore, it is recommended to observe anti-static safety precautions when handling any circuit
board component (including X503U). Anti-static safety protection measures include, but are not
limited to the following:
a) The smart box should be placed in an anti-static bag during transportation and storage, and then
the board should not be taken out during installation and deployment.
b) Before touching the smart box, discharge the static electricity stored in the body: wear a
discharge grounding wrist strap.
c) Operate the smart box only within the safe area of the electrostatic discharge point.
d) Avoid moving smart boxes in carpeted areas.
Precautions and after-sales maintenance
matters needing attention
Before using the product, please read this manual carefully and keep it for future reference;
⚫Please pay attention to and follow all warning and guidance information marked on the product;
⚫Please use matching power adapter to ensure the stability of voltage and current;
⚫Please use this product in a cool, dry and clean place;
⚫Do not use this product in cold and hot alternate environment to avoid condensation damage
components;
⚫Do not splash any liquid on the product. Do not use organic solvent or corrosive liquid to clean
the product;
⚫Do not use the product in dusty and messy environment. If it is not used for a long time, please
pack the product;
⚫Do not use in the environment with excessive vibration, any dropping or knocking may damage
the circuit and components;
⚫Do not plug and unplug the core board and peripheral modules when power is on;
⚫Please do not repair or disassemble the product by yourself. In case of any fault, please contact

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X503U Reference Manual V3.2
our company in time for maintenance;
⚫Do not modify or use unauthorized accessories by yourself, and the damage caused will not be
warranted;
After sales maintenance
1) Warranty period
⚫Base plate, core plate : 3 year (non-human damage)
⚫Other peripherals sold by the company:1year(non-human damage)
2) Warranty description
⚫Within 7 days: the product (base plate, core module) is not damaged by human, our company
will replace / repair it free of charge, and bear the return freight; (because the core module needs
NVIDIA to confirm that it can meet the requirements of repair, it will take a long time, we will
coordinate as soon as possible, please forgive for the inconvenience)
⚫From 7 days to 36 months: the product (base plate, core module) is not damaged by human, our
company will repair it free of charge, and bear the return freight; (because the core module needs
NVIDIA to confirm that it can meet the requirements of repair, it will take a long time, we will
coordinate as soon as possible, please forgive for the inconvenience)
⚫Artificial damage in more than 3 year or 3 year: the product (carrier plate) shall be tested after it
is sent to the customer, and the customer shall be informed of whether it can be repaired and the
maintenance cost in detail. After reaching an agreement, the product shall be repaired and returned to
the customer, and the company shall bear the return freight;
⚫The starting time shall be subject to the date of express delivery receipt;
3) Contact information
Official website: www.realtimesai.com
Taobao website: https://shop340963258.taobao.com/
Address: 11, block B, Heping Xiyuan, Heping West Street, Chaoyang District, Beijing
Attention: RMA
Tel: [phone]
Mailing notice: contact with the company's sales department in advance, arrange technical support
personnel to check and eliminate errors caused by misoperation as soon as possible, fill in the product
after-sale return to factory maintenance form after verification, and send it to [e-mail] Mail
box, please attach the list of items to facilitate verification, so as to avoid loss and loss in the process
of express delivery. The company does not receive any delivery
Technical support and development customization
1. Scope of technical support
1) The company releases the electrical characteristics and use of industrial carrier boards and modules;
2) Physical dimension of hardware, relevant structure diagram and line sequence definition of
specific interface;
3) Burn in verification of all BSP support packages provided by the company;
4) The company released burn environment construction, entry-level use. ;
5) Various peripheral module drivers released by the company;
6) The company's product fault diagnosis and after-sales maintenance services;
2. Scope of technical discussion

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X503U Reference Manual V3.2
Due to the wide range of embedded system knowledge and various types of involvement, we can not
guarantee that all kinds of questions can be answered one by one. The following content is not
available for technical support, only suggestions can be provided.
1) Knowledge beyond the course published by our company;
2) Specific software program design;
3) Technical support for industrial carrier not issued by the company;
4) All kinds of driving support for industrial carrier board not issued by the company;
5) Hardware principle and drive design of peripheral module not issued by our company;
3. Technical support mode
1) Official website or email questions (recommended):
https://www.realtimesai.com/cn/download.html [e-mail]
2) Official Taobao through Alibaba Wangwang consultation: https://shop340963258.taobao.com/
3) Wechat group consultation (wechat Group No. consults Taobao customer service or sales, and
Taobao purchase order No. needs to be provided for verification);
4) Technical support email: [e-mail]
5) Tel: [phone]
4. Technical support time
Monday to Friday; 8:30-12:00 am; 1:00-17:30 PM;
The company arranges the rest according to the national legal holidays, during which it may not be
able to provide technical support, please send the problem to the technical support email. We will
reply to you as soon as possible on weekdays.
5. Complaints and suggestions
If you are not satisfied with us or have suggestions, you can send an email to yu.qin @ realtimes.cn
For feedback, please call 010-84284669 for further improvement.
6. Customized development services
The company provides the embedded operating system driver based on NVIDIA Jetson series and the
paid customized development service of hardware carrier board to shorten your product development
cycle.
Please email the request to [e-mail]
Data acquisition and subsequent update
1. Access to information
Download on our website
The company's website contains supporting information of its products, including product
Product Manual, NVIDIA Jetson series module data manual, BSP driver support package for
carrier board, supporting peripheral driver files, interface test verification method, FAQ, system
burning guide, etc. get into www.realtimesai.com , select "data download" in the
navigation bar, find the data you need, and click download.
2. . Subsequent updates
Updates of subsequent documents, BSP, driver files and other official account will be updated in
time. We will pay close attention to our developments in order to ensure that your information is up to
date. We will push through WeChat public.

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X503U Reference Manual V3.2
Product presentation
1Introduction
Cloud Intelligence Box TM X503U is a intelligence box system equipped with NVIDIA® Jetson™
TX2 core modules and RTSO-9003 onboard. Equipped with 256 NVIDIA CUDA cores and a 64-bit ARM
CPU, it has more than 1 teraflop of data processing power. For industrial deployment application, the
hardware board card is protected and the overall reliability of the system is improved.
X503U is equipped with 8GB LPDDR4 memory, 32GB eMMC storage, WiFi, Bluetooth, USB3.0,
USB2.0, HDMI, serial port, gigabit network port, GPIO, microSD card socket, the system is an excellent
platform for deep learning, computer vision, image processing and GPU computing. X503U is made of strong
aluminum alloy with conductive heat dissipation design. The operating temperature is -25 -- +55℃
1.1 Features
Arithmetic unit：compatibility NVIDIA Jetson™ TX2/TX2i/TX2-4GB module
Preassemble: Linux operating system
Internal RTC battery
Optional TF card
1x HDMI 2.0 interface(Max 6Gbps，24bpp，4096x2160@60Hz)
1x Ethernet interface(10/100/1000 BASE-T）
2x USB3.0 interface（Each port has a bandwidth of 5Gbps, providing 1A output current）
1x USB2.0（have OTG function）
2x CAN
1x 3.3V UART, 1x Debug UART
4x 3.3V Bit programmable GPIO
1x 3.3V I2C interface
2x WIFI/Bluetooth integrated antenna interface
No fan, structural cooling design
Size：102mm×147.5mm×61mm
Power input：+7V~+19V DC input
Temperature：-25~+55℃
Operating humidity：humidity without condensation
Weight：480g

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X503U Reference Manual V3.2
1.2 Ordering Information
Model Options
Functional Description
X503U
TX2 Cloud Intelligence box, built-in Jetson TX2 module,
pre-installed Ubuntu 18.04, built-in 32GB eMMC; 2 x USB 3.0,
1x USB 2.0, 1x HDMI, 1x GbE, 1X Micro SD, 2 x 3.3V UART,
1x 12C, 4 X GPIO, 2 X CAN,WIFI and Bluetooth; Power
indicator light, power switch button, -20 -- +55℃; Includes
power adapter, provides Ruitai new Era RTSO-9003
Linux4Tegra software support package, has passed THE 3C and
CE certification
X503U-Cable
Cable package for X503U interface (optional)
Order online:
https://shop340963258.taobao.com
https://mall.jd.com/index-824786.html
1.3 Wiring package configuration
Component
Number
Functional Description
Micro USB turn
USB TYPE-A
connector
1
Convert Micro USB2.0 interface to standard USB2.0 interface

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X503U Reference Manual V3.2
Product specifications
1 External interface function and location
X503U FRONT
X503U BACK

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X503U Reference Manual V3.2
2 Connectors Description
2.1 Serial connector
Function
Serial port connector
marking
Serial
Type
DB9 interface
Pin define
Pin 1 location: The green frame on the right.
The UART0 and UART1 serial ports are both 3.3V TTL logic level.
The mapping files in Linux system are respectively ttyS0 and
ttyTHS2 in /dev directory.
By default, UART0 is a kernel debugging serial port, which is used
to output c-boot, U-boot, and Linux kernel information. After the
Linux kernel is started, UART0 is used as a display terminal serial
port. TX1/TX2 default serial port setting is: 115200bps, 8N1.
Pin
Signal
Pin
Signal
1
NC
2
UART0 TX
3
UART0 RX
4
NV
5
GND
6
UART1 TX
7
UART1 RX
8
NC
9
GND
2.2 GPIO/I2C and button connector
Function
GPIO、I2C and button connection
marking
GPIO/I2C
Type
DB9 interface
Pin define
Pin
Signal
Pin
Signal
1
GPIO0
2
GPIO1
3
GPIO2
4
GPIO3
5
GND
6
I2C CLK
7
I2C SDA
8
RECOVERY BUTTON
9
POWER BUTTON

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X503U Reference Manual V3.2
Pin 1 location: The green frame on the right.
The sysfs mapping Numbers of GPIO0~GPIO3 in TX1 system are
respectively: 187,186,89,202. The SYSFS mapping number in the
TX2 system is respectively 388,298,480,486.
The induced I2C bus corresponds to the IIC-0 bus in the Linux
system.
2.3 CAN connector
Function
CAN bus connection
marking
CAN
Type
DB9 interface
Pin define
Pin 1 location: The green frame on the right.
The CAN bus interface function is not available when used with the
Jetson TX1 module
Pin
Signal
Pin
Signal
1
CAN1H
2
CAN1L
3
CAN0H
4
CAN0L
5
GND
6
NC
7
NC
8
NC
9
GND
2.4 WiFi/Bluetooth antenna connection
Function
WIFI/Bluetooth antenna connection
marking
Antenna1 、Antenna2
Type
ipex to sma female

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X503U Reference Manual V3.2
2.5 Power input terminal
Function
Power input terminal
marking
Power Input
Type
SF1213/S3
Pin define
Input voltage range：+7V 至+19V。
Pin
Signal
Pin
Signal
1
VIN+
2
VIN-
3
NC
2.6 Power switch button
Function
Power switch
marking
On/Off
2.7 LED
指示标识
功能描述
状态描述
Power
电源指示灯
常亮-设备供电
2.8 HDMI connector
Function
HDMI output interface
marking
HDMI
Type
Standard HDMI connectors
2.9 Ethernet connector
Function
Gigabit Ethernet connector
marking
Ethernet
Type
RJ45

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X503U Reference Manual V3.2
2.10 USB3.0 connectors
Function
USB3.0 connectors
marking
USB3.0
Type
Dual layer USB3.0 type-a interface
2.11 OTG-USB2.0
Function
USB2.0 connectors
marking
USB-OTG
Type
USB 2.0 MicroType-B

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X503U Reference Manual V3.2
3 Product size diagram
4 Hardware update history
X503U hardware update history
edition
Updata description
V1.0
Initial release

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X503U Reference Manual V3.2
Software version supporting instructions
X503U is a complete product with Jetson TX2 module as the core. Provide developers with one-stop
terminal equipment to assist developers in application development.
X503U Feiyun Smart Box supporting software includes:
- L4T (Linux for Tegra): L4T provides "OS" for your Feiyun Smart Box, including Linux kernel, boot
loader, board support package (BSP) and sample file system. (By default, the pure system has been
installed for the device, Jetpack needs to be installed by itself)
- Jetpack: Jetpack sdk is the most comprehensive solution for building AI applications. It includes
software libraries and apis, examples, developer tools and documentation for the latest and previous
versions of Jetson products.
1 Use
1.1 Smart box power on and start
a) Make sure the X503U power switch is turned off
b) Install necessary external cables.（For example: the display cable to the HDMI display, the power
input cable to power the system, the USB cable to the keyboard and mouse...）
c) Turn on X503U power switch and the system starts to work.
1.2 Recovery Mode
The Jetson TX2 core module works in both normal and Recovery mode. In the Recovery mode, file
system update, kernel update, Boot Loader update, BCT update and other operations can be carried out.
X503U to enter Recovery mode:
a) Make X503U power switch in the off state.
b) Use a USB cable connection X503U’s USB-OTG port with Jetson develop host USB port.
c) Short-connect the 5 and 8 pins of GPIO/I2C connector, turn on the power switch to supply power to
the system, and keep the power supply for more than 3 seconds, and then disconnect the 5 and 8
pins of GPIO/I2C connector.
d) After the system enters the Recovery mode, subsequent operations can be carried out.
2 L4T（Linux for Tegra Abbreviation“L4T”）
L4T provides "OS" for your Feiyun Smart Box, including Linux kernel, boot loader, board support
package (BSP) and sample file system.
X503U Smart Box is working on a system burned with the official original version of NVIDIA Linux
For Tegra (L4T). HDMI, Gigabit Ethernet, USB2.0, serial port, GPIO, SD card, I2C bus can all be supported.
But Mini-PCIe, M.2, USB3.0, fan interface, etc. cannot work normally.
For all support of X503U smart box interface, the supporting driver patch (BSP: Board Support Package)
needs to be loaded. Use the flash method to program the system. SDK Manager to install all other JetPack
components except L4T to make your Feiyun Smart Box up and running quickly.
For system programming documentation, please refer to "TX2 system programming instruction manual"

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X503U Reference Manual V3.2
L4T and BSP can be downloaded from Ruitai Cloud Space, and L4T can also be downloaded directly
from the L4T main page on the Jetson developer site.
Please contact sales for the user and password of Ruitai Cloud Space.
3 Jetpack
Nvidia jetpack sdk is the most comprehensive solution for building AI applications. It includes software
libraries and apis, examples, developer tools and documentation for the latest and previous versions of Jetson
products.
3.1 Jetpack Component summary
This section briefly introduces each component of JetPack. For more detailed information about these
components, please refer to JetPack's online documentation.
OS Image
JetPack includes a reference file system derived from Ubuntu. (Development kit system, no need to
install)
Libraries and APIs
JetPack library and API include:
•TensorRT and cuDNN for high-performance deep learning applications
•CUDA for multi-domain GPU accelerated applications
•NVIDIA Container Runtime for containerized GPU accelerated applications
•Multimedia API package for camera application and sensor driver development
•VisionWorks, OpenCV and VPI for visual computing applications
•Sample application
3.2 How to install Jetpack
Overview of process steps
Installing JetPack to your Jetson device requires you to perform the following steps:
1. Download and install the NVIDIA SDK Manager on the Linux host.
2. Connect your jetson device to the Linux host (Micro USB or network (same network segment).
3. Test your device can connect via ssh.
4. Use SDK Manager to select and install the required components.
Download and install the NVIDIA SDK Manager on the Linux host.
You must have a Linux host with internet access to run SDK Manager and refresh the developer kit. The
supported host operating systems are:
Ubuntu Linux x64 Version 18.04 or 16.04
Download and install NVIDIA SDK Manager.
sdkmanager Installation package：sdkmanager-[version].[build#].deb
The current version is：sdkmanager_1.2.0

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X503U Reference Manual V3.2
sdkmanager install
$ sudo apt install ./sdkmanager-[version].[build#].deb
Connect your jetson device to the Linux host
Prepare your Jetson device for the following settings. (If the equipment system is not initialized, the
system user needs to initialize after power-on)
- Connect the monitor, keyboard and mouse to the Jetson Feiyun smart box device (please refer to the
interface description above).
-Use Micro USB cable to connect Linux host and Jetson Feiyun Smart Box (or network (same
network segment))
-During the setup process, SDK Manager will provide Internet connection for your jetson Feiyun
Smart Box via USB or network connection.
-Connect the supplied power adapter to the DC jack of the Feiyun Smart Box, and plug the AC
interface into an AC power outlet.
Test that your device can connect via ssh.
If connected via Micro USB, enter lsusb under the Linux host terminal to see the nvidia crop
The device can be accessed through ping or ssh commands
$ ping 192.168.55.1
or
$ ssh <jetson_user>@192.168.55.1
If connected via a network, check whether the device ip address is in the same network segment as the
Linux host on the Feiyun Smart Box, and the Feiyun Smart Box device can be accessed through the ping
or ssh command.
$ ping <jetson_ip>
or
$ ssh <jetson_user>@<jetson_device_ip>
Use SDK Manager to select and install the required components
NVIDIA SDK Manager supports installing software to Jetson core (Flying Cloud Smart Box). For
complete instructions, please refer to Chapter 5 of "TX2 System Programming Manual".

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X503U Reference Manual V3.2
3.3 Sample application
JetPack includes several examples that demonstrate the use of JetPack components.
They are stored in the reference file system and can be compiled in the developer toolkit.
3.4 Developer tools
JetPack includes the following development tools. Some are used directly on the Jetson system, and
some run on a Linux host connected to the Jetson system.
•Application development and debugging tools
•NSight Eclipse version for GPU accelerated application development: runs on a Linux host. Support all
Jetson products.
•CUDA-GDB for application debugging: Run on Jetson system or Linux host. Support all Jetson
products.
•CUDA-MEMCHECKdebug application memory error: run on Jetson system. Support all Jetson
products.
•Application analysis and optimization tools
•NSight Systems for application multi-core CPU evaluation: run on a Linux host. Helps you improve
application performance by identifying the slower parts of the code. Support all Jetson products.
•NVIDIA®Nsight™ compute Kernel Analyzer: An interactive analysis tool for CUDA applications. It
provides detailed performance indicators and API debugging through user interface and command line tools.
•NSight Graphics for graphics application debugging and evaluation: a consolegrade tool for debugging
and optimizing OpenGL and OpenGL ES programs. Run on the Linux host. Support all Jetson products.
Component
Location
TensorRT
/usr/src/tensorrt/samples/
cuDNN
/usr/src/cudnn_samples_/
CUDA
/usr/local/cuda-/samples/
Multimedia API
/usr/src/tegra_multimedia_api/
VisionWorks
/usr/share/visionworks/sources/samples/
/usr/share/visionworks-tracking/sources/samples/
/usr/share/visionworks-sfm/sources/samples/
OpenCV
/usr/share/OpenCV/samples/
VPI
/opt/nvidia/vpi/vpi-/samples

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X503U Reference Manual V3.2
3.5 Documentation
Documents related to developers using JetPack include:
•JetPack Documentation
•VisionWorks Documentation
•Nsight Eclipse Edition Documentation
•CUDA-GDB Documentation
•CUDA-MEMCHECK Documentation
•TensorRT Documentation
•cuDNN Documentation
•CUDA Toolkit
•NVIDIA Container Runtime
•OpenCV Documentation
•Jetson Linux Multimedia API Reference
•Nsight Systems
•nvprof
•Visual Profiler
•Nsight Graphics
•Nsight Compute CLI
•VPI–Vision Programming Interface

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X503U Reference Manual V3.2
Terms of Warranty
Important note
Each embedded product provided by Realtimes Technology is free from any defects in material and
process,fully in line with the specifications officially issued by the original factory.
Realtimes Technology warranty covers the original products,If the parts configured by the dealer are out of
order, please consult with the dealer to solve the problem. All the baseplate and core modules provided by
Ruitai New Era (Beijing) Technology Co., Ltd. are guaranteed for 3 years, while the other peripherals are
guaranteed for 1 year (life-long maintenance service is provided if the warranty period is beyond the warranty
period).The warranty period starts from the date of delivery, for the products repaired within the warranty
period, the repair parts shall be extended for 12 months.Unless notified by Realtimes Technology, the date
of your original invoice shall be the date of shipment.
How do I get warranty services
If the product does not work properly, Please contact Realtimes Technology or dealer for warranty service,
please show invoice when product warranty(this is the proof for you getting warranty service).
Warranty solution
When you ask for warranty service, please follow Realtimes Technology warranty process,You will need to
receive your first diagnosis from a technicial engineer by phone or by email,at that time,we need you to
cooperate with us to fill in all the questions on the RMA form provided by us. Once we accurately determine
the cause of the fault and the location of the damage ,we will provide the charge list for the out of warranty
products,which needs your confirmation.Realtimes Technology keep the right to repair or replace the products.
If the product is replaced or repaired, the replaced faulty product or the repaired and replaced faulty parts will
be returned to Realtimes Technology.
For products under warranty,the customer shall bear the freight when the product is returned to the
manufacturer,Realtimes Technology will bear the ship cost of the products after maintenance.
The following conditions are not covered by the warranty terms
a) Improper installation, improper use, misuse and abuse of products(Overloading, for example).
b) Improper maintenance and storage（Such as fire, explosion, etc）or natural disasters（such as lightning
stroke,earthquake,typhoon,etc）
c) Personal unauthorized changing the product(such as changing circuit characteristics, mechanical
characteristics, software characteristics,Conformal coating).
d) Other failures which are clearly due to misuse(such as overvoltage,polarity reversal, the pin bent or
broken,the wrong connection,drop damage,transportation damage,damage due to over operating
temperature and so on).
e) The logo and part number on the product have been deleted or removed.
f) The product is out of warranty.