User's Guide

Power Button
Press the button to boot the device when it is off;
Press and hold the button for 2-3 seconds to power
off or reboot the device when the device is on.
Press and hold the button for 11 seconds to power off
the device when the device crashes.
Touch Screen
A touch screen for operators to use.
“Take facial recognition version as an example”
Introduction to the Device
Display Screen
Power Button
Cable Hole
Installation
Put the power cable through the cable hole on the prop back;
Turn the display upward to find the cable hole on the front side of the prop;
Plug the power adapter into the power port on the back of the display;
Plug the other side of the adapter into the AC socket.
:
:
Simple Settings
For more helps, please refer to the Help App in the device.
Get this intelligent device ready for use in few steps.
Press the power button to turn on the screen and enter into the boot interface, then you can operate in
accordance with guidance.
For this device, two network modes can be selected.
1
Wi-Fi Setting
· Click the button [Setting], and open WLAN to enter into the interface for WLAN searching.
Wait for the list of available WLAN hotspot list;
2
· Click the WLAN to be connected. An access password is required if you want to connect to an encrypted network.
LAN Setting
3
For the details of the above software: select “Setting → App”, and you can select an App to check its detailed
information;
Uninstall software: select “Setting → App → App Management → Uninstall” to uninstall an App; or you can press
and hold the App icon to drag it into the trash can icon to uninstall.
With network connection, you can find and download relevant Apps in the App Store for installation.
How to download/use Apps
Three Configuration Options
List of System Preset Software
· App Store · Basic Service · Data Service · User Guide · Hardware Steward
· Print Service · User Center · User Feedback · Welcome Guide · Virtual Bluetooth Service
· Public Wi-Fi · Code Scanning SDK · Launcher · OTA · Remote Assistance · iBeacon
· Customization Service (Wallpaper, Boot Animation) · Developer Guide (Debugging Assistant)
15.6
〃
Touch Screen
（L3551）
Attentions
Cautions
· Please plug the AC power plug into the AC socket
which complies to the input marked on the power
adapter of the accessory;
· Use in any environment with potential explosive gas
is strictly prohibited;
· No one other than professionals shall open the power
adapter casually to avoid dangers;
· This device is a class A product and may cause radio
jamming in the living environment. Under this circumstance,
users need to take practical anti-jamming measures.
· Battery replacement:
1. Using the battery with a wrong model may lead
to explosion!
2. The battery replaced shall be given to the
maintenance staff for handling. Please Do not
throw it into fire!
Important Safety Reminder
· Do not install or use the device during the weather of
thunder and lightning to avoid being hit by thunder and
lightning;
· Please cut off the power supply immediately when you
find a suspicious smell, overheated device or smoke!
Disclaimer
Suggestions
Power port LAN port
USB port USB port TF card slot
Serial port Audio jack USB debug port
Cash
drawer port
· Do not use the device close to water or in moist environment
to prevent liquid from getting inside the device;
· Do not use the device in extremely cold or hot environment.
For example: do not use the device close to fire or a lighted
cigarette;
· Do not drop, throw or bend the device;
· Use the device in clean environment to prevent small items
from getting inside the device;
· Do not use the device close to medical facilities without
permission.
Declaration
Our company is not responsible for the following actions:
· Damages caused by the usage or maintenance which are not
in accordance with the user guide;
· Damages or problems caused by options or consumables
(not provided or approved by our company);
Due to the updates of products, the details listed in this guide
might be different from the products, and the products shall
take precedence. Our company reserves the right to interpret
this guide as well as the right to amend this guide without
prior notice.
Table of Toxic and Hazardous Substances and
Content in this product
This symbol indicates that the content of this toxic or hazardous substance in all homogeneous
material is under the limit specified in the SJ/T11363-2006.
This symbol indicates that the content of this toxic or hazardous substance in at least one
homogeneous material exceeds the limit specified in the SJ/T11363-2006; however, the
exceeding toxic or hazardous substance in the part with a “X” cannot be solved for there is no
mature technology can be used.
Part
Circuit board
component
( Pb ) ( Hg ) ( Cd ) ( Cr(VI) ) ( PBB ) ( PBDE )
Toxic and hazardous substances or elements
Case
component
Package Items List
Device x 1
User Guide x 1 (includes package items list, product warranty card, product certificate of approval)
Power Adapter x 1
Manufacturer: Shanghai SUNMI Technology, Co., Ltd.
Address: Room 505, Building 7, KIC, 388 Songhu Road,
Yangpu District, Shanghai, PR China.
· The OS of the product can be updated with update ROM
released officially by our company. If users use a third-party
ROM system to update or crack and change the system file,
the system may be unstable and will bring safety risks and
threats.
· Modifying or changing the product without our company’s
permission is not allowed;
XXXXXXXX-00
Basic Parameters
OS
Processor
Display
Memory
Touch Screen
Wi
-
Fi
Bluetooth
Speaker
External Port
TF Card
Dimensions
Adapter
SUNMI OS 3.0 (based on Android 7.1)
15.6” Resolution FHD 1920 x 1080
Capacitive multi-touch screen
Support 802.11 b/g/n 2.4GHz
Support Bluetooth 2.1/3.0/4.0
3W each; up to 90 dB
4
x
USB type A port， 1
x
RJ11 serial port， 1
x
RJ12 24V cash drawer port，
1
x
RJ45 LAN port，1
x
audio jack，1
x
power port，1
x
Micro-USB debug port，
1 x TF card slot
Support MicroSD (TF); up to 64G
Input: AC100~240V/1.5A，output: DC24V/1.5A
The configurations and parameters of the products launched to the market shall take precedence over the information
listed in this page.
Single Display：Cortex-A53，1.2GHz
Dual Displays：Cortex-A17，1.6GHz
Single Display：H 34.5cm x W 38.2cm x T 20.0cm
Dual Displays：H 36.8cm x W 38.2cm x T 20.0cm
Single Display：8GB ROM + 2GB RAM
Dual Displays：8GB ROM + 2GB RAM
Cash Register
User Guide
For the product reached or exceeds the environment-friendly use period, please recycle it in
accordance with the Pollution Control and Management on Electronic Information Products
instead of discard it casually.
This product contains a button cell battery. If the button cell battery is swallowed, it can cause severe
internal burns in just 2 hours and can lead to death.
Keep new and used batteries away from children.
If the battery compartment dose not close securely, stop using the product and keep it away from children.
If you think batteries might have been swallowed or placed inside any part of the body, seek immediate
medical attention.
FCC Statement
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
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,
(2) This device must accept any interference received, including interference that may cause undesired operation.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This
equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
Note : 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:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and 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.
POS System