Vantron VT-TABLET-5081G User manual

VT-TABLET-5081G
Hardware Manual
Rev 1.3
2019/09/20
Chengdu Vantron Technology Ltd. Co.
User’s Manual

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Revision record
Rev. Date Change Description Editor
1.0 2019-05-08 Initial Version LW
1.1 2019-06-10 Modification Description LW
1.2 2019-08-25 Modification Description LW
1.3 2019-09-20 Modification Format LW

User’s Manual
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Table of Contents
1INTRODUCTION ................................................................................................................................5
1.1PRODUCT DESCRIPTION .................................................................................................5
1.2CONNECTORS DESCRIPTION...........................................................................................5
2FOREWORD ........................................................................................................................................7
2.1COPYRIGHT NOTICE.......................................................................................................7
2.2NOTES ...........................................................................................................................7
2.3STATEMENT...................................................................................................................7
2.4DISCLAIMER ..................................................................................................................7
2.5LIMITATION OF LIABILITY/NON-WARRANTY.................................................................7
2.6SAFETY INSTRUCTIONS..................................................................................................8
2.7PRECAUTIONS................................................................................................................8
2.8SAFETY INSTRUCTIONS FOR POWER CABLES AND ACCESSORIES...................................8
3OVER VIEW.......................................................................................................................................10
3.1INTRODUCTION............................................................................................................10
3.2ORDER INFORMATION..................................................................................................11
4HARDWARE INSTRUCTIONS.......................................................................................................12
4.1APPEARANCE...............................................................................................................12
4.2INTERFACES.................................................................................................................13
4.3STRUCTURE .................................................................................................................14
5HARDWARE FUNCTION DESCRIPTION ...................................................................................15
5.1LG750 LTE MODULE ..................................................................................................15
5.2BATTERIES AND CHARGER ..........................................................................................15
5.3AUDIO .........................................................................................................................15
5.4RGB LED ...................................................................................................................15
5.5DISPLAY ......................................................................................................................15
5.6WI-FI +BLUETOOTH4.1 ..............................................................................................16
5.7NFC ............................................................................................................................16
6HARDWARE OPERATION NOTES...............................................................................................17
6.1POWER PREPARATION ..................................................................................................17
6.1.1 Environment.........................................................................................................17
6.1.2 Type-C Power in..................................................................................................17
6.1.3 Wireless Charging................................................................................................17

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6.2ANTENNA ....................................................................................................................17
7TIPS .....................................................................................................................................................19

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1Introduction
1.1Product Description
Vantron offers both ARM and ATOM based Single Boards Computer (SBC) platforms
including Cirrus LogicEP9315, RockChipRK3128, RK3368,RK3288,RK3399, Freescale
iMX6, iMX8, TI OMAP35xx CortexA8 series, and Intel Skylake and ApolloLake processor
boards. In additional to offering the standard SBCs, we also provide professional
customization board design services. Our seamless project management, efficient error-free
development process, strong fundamentals in technology, sufficient in human resources, and
on-time delivery will guarantee the success in your project development.
Based on idea of “Application Ready” products and services, our embedded computers
have embedded basic operation system which includes the drivers of its interfaces. So it is
easy to be used by adding your application software only. It can speed Time to Market of
your products, and saving more cost.
1.2Connectors Description
This table is the respective describe valid signal of connector on Vantronboard.
Figure type:
N/C
Not connect
GND
Ground
/
active low signal
+
Positive of difference signal
-
negative of difference signal
Signal type:
I
Input
O
Output
I/O
input/output
P
Power or ground
A
Analog
OD
Open drain
CMOS
3.3 V CMOS
LVCMOS
Low Voltage CMOS
LVTTL
Low Voltage TTL

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3.3V
3.3 V signal level
5V
5 V signal level
USB
5 V tolerant signal
PCIe
PCI Express signal, not 3.3 V tolerant
NC
No Connection

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2Foreword
2.1Copyright Notice
While all information contained herein have been carefully checked to assure its accuracy
in technical details and printing, Vantron assumes no responsibility resulting from any error
or features of this manual, or from improper uses of this manual or the software. Please
contact our technical department for relevant operation solutions if there is any problem that
cannot be solved according to this manual.
Vantron reserves all rights of this manual, including the right to change the content, form,
product features, and specifications contained herein at any time without prior notice. The
latest version of this manual is at www.vantrontech.com.cn. Please contact Vantron for
further information:
E-mail:
Vantron reserves the right of all publicly-released copies of this manual.
[e-mail]
The trademarks and registered trademarks in this manual are properties of their respective
owners. No part of this manual may be copied, reproduced, translated or sold. No changes
or other purposes are permitted without the prior written consent of Vantron.
2.2Notes
Applicable notes are listed in the following table:
Sign
Notice
Type Description
Notice Important information and regulations
Caution
Caution for latent damage to system or
harm to personnel
2.3Statement
It is recommended to read and comply with this manual before operating board, which
provides important guidance and helps decreasing the danger of injury, electric shock, fire,
or any damage to the device.
2.4Disclaimer
Vantron assumes no legal liability of accidents resulting from failure of conforming to the
safety instructions.
2.5Limitation of Liability/Non-warranty

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For direct or indirect damage to this device or other devices of Vantron caused by failure
of conforming to this manual or the safety instructions on device label, Vantron assumes
neither warranty nor legal liability even if the device is still under warranty.
2.6Safety Instructions
Keep and comply with all operation instructions, warnings, and information.
Pay attention to warnings on this device.
Read the following precautions so as to decrease the danger of injury, electric shock, fire,
or any damage to the device.
2.7Precautions
Pay attention to the product labels/safety instructions printed on silk screens.
Do not try repairing this product unless declared in this manual.
Keep away from heat source, such as heater, heat dissipater, or engine casing.
Do not insert other items into the slot (if any) of this device.
Keep the ventilation slot ventilated for cooling.
System fault may arise if other items are inserted into this device.
Installation: ensure correct installation according to instructions from the manufacturer
with recommended installation tools.
Ensure ventilation and smoothness according to relevant ventilation standard.
2.8Safety Instructions for Power Cables and Accessories
Proper power source only
Start only with power source that satisfies voltage label and the voltage necessary
according to this manual. Please contact technical support personnel of Vantron for any
uncertainty about the requirements of necessary power source.
Use tested power source
This product still contains a button lithium battery as a real-time clock after its external
power source is removed and therefore should not be short-circuited during transportation or
placed under high temperature.
Place cables properly:
Do not place cables at any place with extrusion danger.

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Cleaning Instructions
Please power off before cleaning the device.
Do not use spray detergent.
Clean with a damp cloth.
Do not try cleaning exposed electronic components unless with a dust collector.
Support for special fault: Power off and contact technical support personnel of Vantron
in case of the following faults:
The device is damaged.
The temperature is excessively high.
Fault is still not solved after the operation according to the manual.

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3Over View
3.1Introduction
VT-TABLET-5081Gis abased onRockchip RK3368 Cortex-A53Octa-Core
tablet.Built-in 2GB LPDDR3 and 32GB NAND Flash, 8＂high resolution LCD with a
Capacitive Touch Screen, 5MP Camera, And support wireless and POE power supply.

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3.2Order information
Order Part Example
VT-TABLET-5081G
Rockchip, RK3368,1.5GHz, Octa-Core,2GB LPDDR3,
32GB NAND Flash

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4Hardware Instructions
4.1Appearance
Figure 4-1

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4.2Interfaces
Figure 4-3
Camera 5M pixel
Audio Jack x2
RG LED
2X1W Speaker
MIC
USB Type-C
NFC ANT
QI ANT
Volume -/+
button
Power
button
FM ANT

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4.3Structure
Download the board structure document from Vantron technology sustain or Vantron
net site:www.vantrontech.com.cn
246x151x23.5mm
Figure 4-4

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5Hardware Function Description
This chapter describe the hardware Features include, switch, jumper, connector and PIN
function
The interface description ought to consult the connector sketch map. And attach
necessary message such as picture. Indicate the figure, PIN1 and match jack
5.1LG750 LTE module
The functions and characteristics of LG750 LTE module are shown as follows:

GCT chipset: GDM7243QT;

Support Band48 (Fre: 3552.5MHz ~ 3697.5MHz);

DL: 220Mbps, UL: 45Mbps

LTE Category3GPP Release 11 Cat 6

Provide 4 antenna interfaces;

Support standard AT instruction set;

1 USIM card signal (Support 3.0v or 1.8v)

FCC ID: 2ASRY-LG750
5.2Batteries and Charger
TheVT-TABLET-5081G built-in 8000mAh BAT, USB Type-C double-side charging
interface, suggest that the input 5V/2A, and support max 10W wireless charging, Qi v1.2.1.
5.3Audio
The VT-TABLET-5081G have 2x3.5mm Stereo headphone Audio Jack, And support
Simultaneously recording and simultaneously playing audio, 1x MIC on board, And with
2x1W/4Ω speaker.
And built-in FM antenna, frequency range is 87MHz to 108MHz.
5.4RGB LED
The VT-TABLET-5081G has three ways of lighting, as follow:
LED Color
Status
Red
Power less than 15%
Green
Power more than95%
Yellow
Charging
5.5Display
The VT-TABLET-5081G display is an 8" LCD, more parameters are listed below:

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Item
Specification
Unit
Panel Size
8.0”
Inch
Number of Pixels
800x1280
pixels
Shape Size
114.6*184.1*2.5
mm
Display Area
107.64(H) x 172.224(V)
mm
Pixel Pitch
0.0448*0.1344
Mm
Number of Colors
16.7M
-
Display Mode
Normally Black
-
Viewing Direction
Full View
-
Luminance
250(TYP.)
(cd/m²)
Contrast Ratio
700(TYP.)
Interface
MIPI
-
5.6Wi-Fi + Bluetooth4.1
The wireless module complies with IEEE 802.11 a/b/g/n/ac 2x2 MIMO standard
and it can achieve up to a speed of 867Mbps with dual stream in 802.11n to connect the
wireless LAN. The integrated module provides SDIO interface for Wi-Fi, UART
interface for Bluetooth.
Features:
1. Lead Free design which is compliant with ROHS requirements.
2. 802.11a/b/g/n/ac dual-band radio with virtual-simultaneous dual-band operation
3. Dual-stream spatial multiplexing up to 867 Mbps data rate.
4. Supports 20, 40, 80 MHz channels.
5.7NFC
The VT-TABLET-5081G built-in NFC, and13.56 MHz RF clock recovered from RF
field, RF protocols supported: ISO/IEC 14443A, ISO/IEC 14443B PICC, and read card
distance is less than 10cm.

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6Hardware Operation Notes
This section provides a guide to setting up and using of some of the features of the
board. For more detailed information on any aspect of the board see detailed hardware
description.
6.1 Power preparation
6.1.1Environment
For the assembled or debug platform, be sure there hasn’t any risk of circuit shortness
for the board. And make sure the anti-static is done well.
6.1.2Type-C Power in
Please confirm the power input is 5V. And the reference current is 2A. Make sure the
power input positive is not reversed.
6.1.3Wireless Charging
Please ensure that the QI antenna is central axisymmetric with the base antenna, not too
far away.
6.2 Antenna
tThe design of the internal antenna position of the VT-TABLET-5081G will be shown
as follow:
Figure 5-1
4G Main
ANT2
4G diversity ANT3
FM ANT
4G diversity ANT4
4G diversity
ANT1
WIFI ANT1
WIFI&BT ANT0

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So, in order to ensure that the tablet function can work properly, please do not cover
the antenna area with metal shielding devices.
Note: 4G antenna frequency is 3552.5MHz ~ 3697.5MHz
WIFI and BT antenna frequency is 2.4G and 5G
FM antenna frequency is 87 to 108MHz

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7Tips
Waste Disposal
It is recommended to disassemble the device before abandoning it in conformity with
local regulations. Please ensure that the abandoned batteries are disposed according to local
regulations on waste disposal. Do not throw batteries into fire (explosive) or put in common
waste canister. Products or product packages with the sign of “explosive” should not be
disposed like household waste but delivered to specialized electrical＆electronic waste
recycling/disposal center. Proper disposal of this sort of waste helps avoiding harm and
adverse effect upon surroundings and people’s health. Please contact local organizations or
recycling/disposal center for more recycling/disposal methods of related products.
Comply with the following safety tips:
Do not use in combustible and explosive environment
Keep away from combustible and explosive environment for fear of danger.
Keep away from all energized circuits.
Operators should not remove enclosure from the device. Only the group or person with
factory certification is permitted to open the enclosure to adjust and replace the structure
and components of the device. Do not change components unless the power cord is removed.
In some cases, the device may still have residual voltage even if the power cord is removed.
Therefore, it is a must to remove and fully discharge the device before contact so as to avoid
injury.
Unauthorized changes to this product or its components are prohibited.
In the aim of avoiding accidents as far as possible, it is not allowed to replace the system
or change components unless with permission and certification. Please contact the technical
department of Vantron or local branches for help.
Pay attention to caution signs.
Caution signs in this manual remind of possible danger. Please comply with relevant
safety tips below each sign. Meanwhile, you should strictly conform to all safety tips for
operation environment.

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Notice
Considering that reasonable efforts have been made to assure accuracy of this manual,
Vantron assumes no responsibility of possible missing contents and information, errors in
contents, citations, examples, and source programs.
Vantron reserves the right to make necessary changes to this manual without prior notice.
No part of this manual may be reprinted or publicly released in forms of photocopy, tape,
broadcast, e-document, etc.
FCC RF Exposure Information and Statement
This device meets the government's requirements for exposure to radio waves.
The guidelines are based on standards that were developed by independent
scientific organizations through periodic and thorough evaluation of scientific studies. The
standards include a substantial safety margin designed to assure the safety of all
persons regardless of age or health. The SAR limit of USA (FCC) is 1.6 W/kg
averaged. Device types: Tablet (FCC ID: 2AAGE5081G) has also been tested against this
SAR limit. SAR information on this and other pad can be viewed on ‐line
at http://www.fcc.gov/oet/ea/fccid/. Please use the device FCC ID number for search. This
device was tested simulation typical 0mm to body. To maintain compliance with FCC RF
exposure requirements, the use of belt clips, holsters and similar accessories should not
contain metallic components in its assembly, the use of accessories that do not satisfy these
requirements may not comply with FCC RF exposure requirements, and should be avoided.
FCC Warning
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
NOTE 1: 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 reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, 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 encouraged to try to correct the interference by one or more of the following measures: