Dahua Technology D-LCH75-MC410-B User manual

Smart Interactive Whiteboard
Quick Start Guide
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD. V1.1.0

Quick Start Guide
I
Foreword
General
This manual introduces the functions and operations of the smart interactive whiteboard
(hereinafter referred to as "the whiteboard"). Read carefully before using the whiteboard, and keep
the manual safe for future reference.
Safety Instructions
The following signal words might appear in the manual.
Signal Words
Meaning
Indicates a high potential hazard which, if not avoided, will result in
death or serious injury.
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, reductions in performance, or
unpredictable results.
Provides methods to help you solve a problem or save time.
Provides additional information as a supplement to the text.
Revision History
Version
Revision Content
Release Time
V1.1.0 Added 55-inch series. May 2022
V1.0.0 First release. March 2022
About the Manual
●The manual is for reference only. Slight differences might be found between the manual and the
product.
●We are not liable for losses incurred due to operating the product in ways that are not in
compliance with the manual.
●The manual will be updated according to the latest laws and regulations of related jurisdictions.
For detailed information, see the paper user’s manual, use our CD-ROM, scan the QR code or visit
our official website. The manual is for reference only. Slight differences might be found between
the electronic version and the paper version.
●All designs and software are subject to change without prior written notice. Product updates
might result in some differences appearing between the actual product and the manual. Please
contact customer service for the latest program and supplementary documentation.
●There might be errors in the print or deviations in the description of the functions, operations
and technical data. If there is any doubt or dispute, we reserve the right of final explanation.
●Upgrade the reader software or try other mainstream reader software if the manual (in PDF

Quick Start Guide
II
format) cannot be opened.
●All trademarks, registered trademarks and company names in the manual are properties of their
respective owners.
●Please visit our website, contact the supplier or customer service if any problems occur while
using the device.
●If there is any uncertainty or controversy, we reserve the right of final explanation.

Quick Start Guide
III
Important Safeguards and Warnings
This section introduces content covering the proper handling of the whiteboard, hazard prevention,
and prevention of property damage. Read carefully before using the whiteboard, and comply with
the guidelines when using it.
Storage Requirements
●Stably put the whiteboard onto a support platform that is strong enough to prevent the
whiteboard from falling.
●Do not place the whiteboard in a place exposed to sunlight or near heat sources.
●Store the whiteboard under allowed humidity and temperature (–20 °C to +60 °C, or–4 °F to
+140 °F) conditions.
Installation Requirements
●Do not install the whiteboard in a place exposed to sunlight or near heat sources.
●Keep the whiteboard away from dampness, dust, and soot.
●Install the whiteboard on a stable surface to prevent it from falling.
●Install the whiteboard in a well-ventilated place, and do not block its ventilation.
●The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no
higher than PS2. Please note that the power supply requirements are subject to the device label.
●The whiteboard is a class I electrical appliance. Make sure that the power supply of the
whiteboard is connected to a power socket with protective earthing.
●The appliance coupler is a disconnection device. Keep it at a convenient angle when using it.
Operation Requirements
●High voltage inside the whiteboard. Do not disassemble the whiteboard without a qualified
professional present to avoid the risk of being exposed to danger.
●Improper use of the battery might result in a fire or explosion.
●Replace unwanted batteries with new batteries of the same type and model.
●Use the standard power adapter. We will assume no responsibility for any problems caused by
the use of a nonstandard power adapter.
●Use the power cords that are recommended for the region and conform to the rated power
specifications.
●Make sure all cables are connected correctly before plugging the whiteboard into the power. Do
not overload the power socket or pull the power code. Otherwise, it might cause fire or electric
shock.
●Do not drop or splash liquid onto the whiteboard, and make sure that there is no object filled

Quick Start Guide
IV
with liquid on the whiteboard to prevent liquid from flowing into it.
●Operate the whiteboard within the rated range of power input and output.
●Do not disassemble the whiteboard without professional instruction.
●Use the whiteboard under allowed humidity and temperature (0 °C to 40 °C, or 32 °F to 104 °F)
conditions.
●The whiteboard is a class I electrical appliance. Make sure that the power supply of the
whiteboard is connected to a power socket with protective earthing.
●The appliance coupler is a disconnection device. Keep it at a convenient angle when using it.
Maintenance Requirements
●Power off the whiteboard before maintenance. Do not use the liquid cleaner or spray cleaner
when cleaning the whiteboard.
●Use the clean and soft cloth or use the special lens wiping cloth when cleaning the surface of
display screen. Do not use the wet cloth to clean the display screen. Otherwise, it may do harm to
the screen.

Quick Start Guide
V
Table of Contents
Foreword.........................................................................................................................................................................................................I
Important Safeguards and Warnings............................................................................................................................................. III
1 Introduction............................................................................................................................................................................................. 1
2 Packing List.............................................................................................................................................................................................. 2
3 Installation ............................................................................................................................................................................................... 3
3.1 Preparation.................................................................................................................................................................................... 3
3.2 Installation Accessories........................................................................................................................................................... 4
3.3 Installation Procedure.............................................................................................................................................................. 4
4 Appearance............................................................................................................................................................................................11
Appendix 1 Cybersecurity Recommendations.........................................................................................................................14

Quick Start Guide
1
1 Introduction
The smart interactive whiteboard is an integrated multimedia device, which integrates large-screen
HD display, computer, TV, electronic whiteboard, audio amplifier, application, and central control
system.
The whiteboard supports the following functions and features:
●4K HD LCD display.
●Switch between Android and Windows systems (for Windows, you need to install a computer
module).
●One-tap projection of devices such as mobile phones and tablets.
●Electronic white board.
●Various software such as Microsoft Office and audio and video players.

Quick Start Guide
2
2 Packing List
Check whether there is any obvious damage on the packing box. Unpack the box and check whether
the components are complete according to the packing list.
Table 2-1 Packing list
Name
Quantity
Name
Quantity
Smart interactive whiteboard 1 Power cord 3
Stylus pen 2 Quick Start Guide 1
Wall mount bracket (installed on
whiteboard already) 1 Accessory package 2
Remote control 1 — —
The accessory packages contain expansion bolt× 8, plastic pad× 6, self-tapping screw× 8, and
gasket× 8.

Quick Start Guide
3
3 Installation
3.1 Preparation
To ensure correct function and safety, remember to check whether your site is ready for the
installation in the first place.
Step 1 Check the grounding.
The IR touch technology adopted by the whiteboard requires that the site should be
grounded as follows:
●The voltage between the live and neutral wires is 210–240 VAC.
●The voltage between the live and ground wires is 210–240 VAC, the same as the
voltage between the live and neutral wires.
●The voltage between the neutral and ground wires is 0 or near 0.
If the voltage between the neutral and ground wires is higher than 5 VAC, report the
situation to our technical support.
Step 2 Check the power supply.
The power supply circuit for the whiteboard should be independent from lighting and
other circuits to avoid unwanted interference.
Step 3 Make sure that the wall can bear a load of 160 kg or more.
Step 4 Make sure that there is enough space for the whiteboard.
The ideal reserved space is 10 mm greater than the length and height of the whiteboard.
If you want to embed the whiteboard into the wall, make sure there is enough space to use
the ports and buttons on the 2 sides of the whiteboard.
Step 5 Prepare the installation tools.
●To install the whiteboard onto a brick or concrete wall, you need an electric hammer,
drill bit, iron hammer, open-ended spanner, laser level or spirit level, crosshead
screwdriver, and protective gloves.
●To install the whiteboard onto a wooden wall, you need an iron hammer, laser level or
spirit level, crosshead screwdriver, self-tapping screws, and protective gloves.

Quick Start Guide
4
3.2 Installation Accessories
Figure 3-1 Installation accessories
Table 3-1 Accessory description
No.
Name
Quantity
1 Vertical bracket 2
2 Horizontal bracket 1
3 ø6 × 50 wall-mount screw 8
4 Plastic expansion plug for screw 8
5 Gasket 8
The brackets have been installed on the whiteboard when you receive it.
3.3 Installation Procedure
Step 1 Insert 2 M5 × 100 screws 2–10 mm into the vertical brackets.
●If thicker gaskets are used, install the gaskets between the whiteboard and vertical
brackets.
●The M5 × 100 screws are already installed on the whiteboard.

Quick Start Guide
5
Figure 3-2 Insert screws into vertical brackets
Figure 3-3 Install gaskets
Step 2 Mark screw locations on the wall and then drill holes.
1) Identify a suitable installation position, and then mark the screw locations.

Quick Start Guide
6
Figure 3-4 Installation dimensions (55/65-inch series)

Quick Start Guide
7
Figure 3-5 Installation dimensions (75/86-inch series)
2) Drill holes at the marked locations.
Figure 3-6 Required hole diameter and depth
Step 3 Use 6 × 50 mm wall-mount screws to attach the horizontal bracket onto the wall and keep
it horizontal.

Quick Start Guide
8
Figure 3-7 Install the horizontal bracket
Step 4 Attach the vertical brackets onto the wall. You can use the holes on the vertical brackets to
adjust the height of the whiteboard. Install the hooks on the rear panel of the whiteboard
with screws.
●For 55/65-inch series, you can use the first to the third hole from up to down, with the
maximum adjustment range of 30 mm.
●For 75/86-inch series, you can use the first to the seventh hole from up to down, with
the maximum adjustment range of 90 mm.
Figure 3-8 Attach the vertical brackets (55-inch series)

Quick Start Guide
9
Figure 3-9 Attach the vertical brackets (65-inch series)
Figure 3-10 Attach the vertical brackets (75-inch series)

Quick Start Guide
10
Figure 3-11 Attach the vertical brackets (86-inch series)
Step 5 Tighten the screws at the bottom of the vertical brackets to secure the brackets.
Make sure that the appropriate screwdriver is used.
Figure 3-12 Secure the vertical brackets

Quick Start Guide
11
4 Appearance
Figure 4-1 Appearance (55-inch series)
Figure 4-2 Appearance (65/75/86-inch series)
Table 4-1 Appearance description
No.
Description
1 LCD.

Quick Start Guide
12
No.
Description
2
Power input port. Inputs 100–240 VAC power.
After connecting to power supply, press the rocker switch to turn on the
whiteboard.
3 USB 3.0 port.
4 Magnetic stylus pen attach area.
5 Speaker. Plays multimedia sound.
6 Indicator light. The light is red when the whiteboard is on standby and blue when
the whiteboard is in normal use.
7
Light sensor. The device recognizes the ambient brightness through the light
sensor and automatically adjusts the backlight brightness according to the
ambient brightness.
8 IR sensor. Receives signals from the remote control.
9 RS-232 port. Transmits data between devices. You can connect to central control
devices with RS-232 port.
10 LINE OUT. An audio output port that connects to the earphone or speaker.
11
Power button.
●Press the button to turn on or turn off the screen.
●Press and hold the button for 5 seconds to turn on or turn off the whiteboard.
●When the touch lock is enabled, press the power button 3 times to unlock the
touch lock.
12 Side panel ports. For details, see Table 4-2.
13 Microphones. Pick up live audio.
14 Built-in HD camera.
Figure 4-3 Ports (55-inch series)
Figure 4-4 Ports (65/75/86-inch series)

Quick Start Guide
13
Table 4-2 Port description
No.
Name
Description
1 Micro USB Used for debugging Android system.
2 HDMI IN HD audio and video signal input port. Connects to the computer, set-
top box, and other video devices with HDMI output ports.
3 USB 3.0
Connects to USB devices such as mobile hard disk, USB flash drive,
USB keyboard, and USB mouse. They are accessible both from the
built-in Android system and the optional OPS computer module.
4 Touch
Transmits touch signals.
The port is used together with the HDMI port to allow you to control
the computer through touch operations on the whiteboard.
5 RJ-45 port 1000 Mbps network port. Connects to network cable to access
network.
6 RS-232 port Transmits data between devices. You can connect to central control
devices with RS-232 port.

Quick Start Guide
14
Appendix 1 Cybersecurity Recommendations
Cybersecurity is more than just a buzzword: it’s something that pertains to every device that is
connected to the internet. IP video surveillance is not immune to cyber risks, but taking basic steps
toward protecting and strengthening networks and networked appliances will make them less
susceptible to attacks. Below are some tips and recommendations from Dahua on how to create a
more secured security system.
Mandatory actions to be taken for basic device network security:
1. Use Strong Passwords
Please refer to the following suggestions to set passwords:
●The length should not be less than 8 characters.
●Include at least two types of characters; character types include upper and lower case letters,
numbers and symbols.
●Do not contain the account name or the account name in reverse order.
●Do not use continuous characters, such as 123, abc, etc.
●Do not use overlapped characters, such as 111, aaa, etc.
2. Update Firmware and Client Software in Time
●According to the standard procedure in Tech-industry, we recommend to keep your device
(such as NVR, DVR, IP camera, etc.) firmware up-to-date to ensure the system is equipped with
the latest security patches and fixes. When the device is connected to the public network, it is
recommended to enable the“auto-check for updates” function to obtain timely information
of firmware updates released by the manufacturer.
●We suggest that you download and use the latest version of client software.
"Nice to have" recommendations to improve your device network security:
1. Physical Protection
We suggest that you perform physical protection to device, especially storage devices. For
example, place the device in a special computer room and cabinet, and implement well-done
access control permission and key management to prevent unauthorized personnel from
carrying out physical contacts such as damaging hardware, unauthorized connection of
removable device (such as USB flash disk, serial port), etc.
2. Change Passwords Regularly
We suggest that you change passwords regularly to reduce the risk of being guessed or cracked.
3. Set and Update Passwords Reset Information Timely
The device supports password reset function. Please set up related information for password
reset in time, including the end user’s mailbox and password protection questions. If the
information changes, please modify it in time. When setting password protection questions, it is
suggested not to use those that can be easily guessed.
4. Enable Account Lock
The account lock feature is enabled by default, and we recommend you to keep it on to
guarantee the account security. If an attacker attempts to log in with the wrong password several
times, the corresponding account and the source IP address will be locked.
5. Change Default HTTP and Other Service Ports
We suggest you to change default HTTP and other service ports into any set of numbers between