Dahua Digital VTH User manual

Digital VTH
(Version 4.3)
Quick Start Guide
V1.0.0

Cybersecurity Recommendations I
Cybersecurity Recommendations
Mandatory actions to be taken towards cybersecurity
1. Change Passwords and Use Strong Passwords:
The number one reason systems get “hacked” is due to having weak or default passwords. It is
recommended to change default passwords immediately and choose a strong password
whenever possible. A strong password should be made up of at least 6 numbers.
2. Update Firmware
As is standard procedure in the tech-industry, we recommend keeping NVR, DVR, and IP
camera firmware up-to-date to ensure the system is current with the latest security patches and
fixes.
“Nice to have” recommendations to improve your network security.
1. Change Passwords Regularly
Regularly change the credentials to your devices to help ensure that only authorized users are
able to access the system.
2. Physically Lock Down the Device:
Ideally, you want to prevent any unauthorized physical access to your system. The best way to
achieve this is to install the recorder in a lockbox, locking server rack, or in a room that is
behind a lock and key.
3. Isolate NVR and IP Camera Network
The network your NVR and IP camera resides on should not be the same network as your
public computer network. This will prevent any visitors or unwanted guests from getting access
to the same network the security system needs in order to function properly.

Foreword II
Foreword
General
This document mainly introduces structure, installation process, debugging and verification
process of digital VTH products.
Device Upgrade
Please don’t cut off power supply during device upgrade. Power supply can be cut off only after
the device has completed upgrade and has rebooted.
Safety Instructions
The following categorized signal words with defined meaning might appear in the Manual.
Signal Words
Meaning
Provides methods to help you solve a problem or save you time.
Provides additional information as the emphasis and supplement to
the text.
Revision History
No.
Version
Revision Content
Release Date
1
V1.0.0
First release
March 13, 2019
Privacy Protection Notice
As the device user or data controller, you might collect personal data of others, such as face,
fingerprints, car plate number, Email address, phone number, GPS and so on. You need to be
in compliance with the local privacy protection laws and regulations to protect the legitimate
rights and interests of other people by implementing measures, including but not limited to:
providing clear and visible identification to inform data subject the existence of surveillance
area and providing related contact.
About the Guide
The Guide is for reference only. If there is inconsistency between the Guide and the actual
product, the actual product shall prevail.
We are not liable for any loss caused by the operations that do not comply with the Guide.
The Guide would be updated according to the latest laws and regulations of related
regions. For detailed information, see the paper User's Manual, CD-ROM, QR code or our

Foreword III
official website. If there is inconsistency between paper User's Manual and the electronic
version, the electronic version shall prevail.
All the designs and software are subject to change without prior written notice. The product
updates might cause some differences between the actual product and the Guide. Please
contact the customer service for the latest program and supplementary documentation.
There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, please refer to our final explanation.
Upgrade the reader software or try other mainstream reader software if the Guide (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the Guide are the
properties of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
If there is any uncertainty or controversy, please refer to our final explanation.

Important Safeguards and Warnings IV
Important Safeguards and Warnings
The following description is the correct application method of the device. Please read the Guide
carefully before use, in order to prevent danger and property loss. Strictly conform to the Guide
during application and keep it properly after reading.
Operating Requirement
Please don’t place and install the device in an area exposed to direct sunlight or near heat
generating device.
Please don’t install the device in a humid, dusty or fuliginous area.
Please keep its horizontal installation, or install it at stable places, and prevent it from
falling.
Please don’t drip or splash liquids onto the device; don’t put on the device anything filled
with liquids, in order to prevent liquids from flowing into the device.
Please install the device at well-ventilated places; don’t block its ventilation opening.
Use the device only within rated input and output range.
Please don’t dismantle the device arbitrarily.
The device shall be used with screened network cables.
Power Requirement
The product shall use electric wires (power wires) recommended by this area, which shall
be used within its rated specification!
Please use power supply that meets SELV (safety extra low voltage) requirements, and
supply power with rated voltage that conforms to Limited Power Source in IEC60950-1. For
specific power supply requirements, please refer to device labels.
Appliance coupler is a disconnecting device. During normal use, please keep an angle that
facilitates operation.

Table of Contents V
Table of Contents
Cybersecurity Recommendations ......................................................................................................... I
Foreword ................................................................................................................................................. II
Important Safeguards and Warnings ..................................................................................................IV
1 Product Structure ............................................................................................................................... 1
1.1 Front Panel .................................................................................................................................... 1
1.2 Rear Panel Port ............................................................................................................................. 2
1.2.1 VTH5221 Series /VTH5241 Series..................................................................................... 2
1.2.2 VTH5221E-H/VTH5221EW-H............................................................................................ 2
1.2.3 VTH15XX-S2 Series Type B/Type CH & VTH15XX Series Type B/Type CH.................... 2
1.2.4 VTH5222CH/VTH5222CHW-2........................................................................................... 4
1.2.5 VTH1660CH ....................................................................................................................... 4
1.2.6 VTH2221A/VTH2221A-S2.................................................................................................. 4
1.2.7 VTH2421FB/VTH2421FS ................................................................................................... 5
2 Installation and Debugging ............................................................................................................... 6
2.1 Installation...................................................................................................................................... 6
2.1.1 Surface Installation ............................................................................................................. 6
2.1.2 Installation with 86 Box....................................................................................................... 7
2.1.3 Desktop Installation with Bracket ....................................................................................... 7
2.2 Debugging ..................................................................................................................................... 8
2.2.1 VTO Settings....................................................................................................................... 8
2.2.2 VTH Settings..................................................................................................................... 13
2.3 Debugging Verification................................................................................................................. 18
2.3.1 VTO Calls VTH ................................................................................................................. 18
2.3.2 VTH Monitors VTO ........................................................................................................... 19

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1 Product Structure
1.1 Front Panel
Different models of devices may have different front panel dimensions and key types, but keys
or indicators with the same silkscreen or icon have the same function. Please refer to Table 1-1
for details.
Icon or
Silkscreen
Name
Description
SOS
Press this key to call the Call Center in case of emergency.
Menu
Press this key to return to main menu.
Call
In case of incoming call, press this key to answer the call.
During talk, press this key to hang up.
During monitoring, press this key to speak to unit VTO, villa
VTO, fence station and verifying VTO.
During speaking, press this key to exit speaking.
Monitor
In standby mode, press this key to monitor the main VTO.
During monitoring, press this key to exit monitoring.
Unlock
In case of incoming call, talk, monitoring and speaking of VTO,
press this key to unlock corresponding VTO.
Message
indicator
If this indicator turns on, it represents that there are unread
messages.
Power
indicator
If this indicator turns on in green, it represents normal power
supply.
Network
Network
indicator
If this indicator turns on, it represents normal
communication with VTO.
If this indicator turns off, it represents abnormal
communication with VTO.
DND
DND
indicator
If this indicator turns on in green, it represents that DND
function is enabled.
For DND settings, please scan QR code on the front cover, and
refer to the user’s manual.
Table 1-1

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1.2 Rear Panel Port
1.2.1 VTH5221 Series /VTH5241 Series
VTH5221 series and VTH5241 series have different port positions at the rear panel, but the
same port provides the same function. Taking VTH5221 as an example, specific functions of
ports are introduced, as shown in Figure 1-1.
Figure 1-1
1.2.2 VTH5221E-H/VTH5221EW-H
Rear panel of VTH5221E-H/VTH5221EW-H is shown in Figure 1-2.
Figure 1-2
1.2.3 VTH15XX-S2 Series Type B/Type CH & VTH15XX Series
Type B/Type CH
In VTH15XX-S2 type CH series, different types of digital VTH have different port positions, but
the same port provides the same function. Taking VTH1550CH-S2 as an example, specific
functions of ports are introduced, as shown in Figure 1-3.

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Figure 1-3
In VTH15XX-S2 type B series, different types of digital VTH have different port positions, but
the same port provides the same function. Taking VTH1560B-S2 as an example, specific
functions of ports are introduced, as shown in Figure 1-4.
Figure 1-4
In VTH15XX type CH series, different types of digital VTH have different port positions, but the
same port provides the same function. Taking VTH1550CH as an example, specific functions of
ports are introduced, as shown in Figure 1-5.
Figure 1-5
In VTH15XX type B series, different types of digital VTH have different port positions, but the
same port provides the same function. Taking VTH1560B as an example, specific functions of
ports are introduced, as shown in Figure 1-6.

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Figure 1-6
1.2.4 VTH5222CH/VTH5222CHW-2
Except different numbers of 2-wire port, VTH5222CH and VTH5222CHW-2 are the same in
other aspects. VTH5222CH has 1 group of 2-wire port, while VTH1550CHW-2 has 3 groups of
2-wire port. VTH5222CH is shown in Figure 1-7.
Figure 1-7
1.2.5 VTH1660CH
Its ports are described in Figure 1-8.
Figure 1-8
1.2.6 VTH2221A/VTH2221A-S2
Its ports are described in Figure 1-9.