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

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 1
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

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 2
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.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 3
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.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 4
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.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 5
Figure 1-9
1.2.7 VTH2421FB/VTH2421FS
Its ports are described in Figure 1-9.
Figure 1-9

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 6
2 Installation and Debugging
2.1 Installation
Don’t install VTH in bad environment, such as condensation, high temperature, stained,
dusty, chemically corrosive and direct sunshine environment.
In case of abnormality after power on, please pull out network cable and cut off power
supply at once. Power on after troubleshooting.
Engineering installation and debugging shall be done by professional teams. Please don’t
dismantle or repair arbitrarily in case of device failure. Please contact after-sales
department.
It is suggested that installation height of device central point shall be 1.4cm～1.6cm above
the ground.
2.1.1 Surface Installation
Directly install the device with a bracket onto a wall, which is suitable for all types of devices.
Take “VTH1550CH” for example.
Drill holes in the wall according to hole positions of the bracket.
Fix installation bracket directly onto the wall with screws.
Put the device into installation bracket from top down.
Figure 2-1

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 7
2.1.2 Installation with 86 Box
Install the device with 86 box, which is suitable for all types of devices. Take “VTH1560B/BW”
for example.
Embed 86 box into a wall at a proper height.
Fix installation bracket onto 86 box with screws.
Put the device into installation bracket from top down.
Figure 2-2
2.1.3 Desktop Installation with Bracket
Install the device with bracket on the desktop, which only applies to handset VTH. Take
“VTH5221E-H” for example.
With two M3×6 cross recessed countersunk head screws, tighten the metal bracket
onto the top two nuts of desktop bracket.
Please connect wire by reference to Figure 1-2.
After wiring, guide the wire through wire outlet in the rear or at the bottom of desktop
bracket.
Put the handset VTH along slot at the top of metal bracket, and install it into the
bracket.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 8
Figure 2-3
2.2 Debugging
Carry out debugging to ensure that the device can realize basic network access, call and
monitoring functions after installation. Before debugging, please check whether the following
work has been completed.
Check whether there is short circuit or open circuit. Power on the device only after the
circuit is confirmed to be normal.
IP and no. of every VTO and VTH have been planned.
Ensure deployment position of SIP server.
Please scan QR code on the cover for details.
Set VTO info and VTH info at WEB interface of every VTO, set VTH info, network info and VTO
info on every VTH, and thus realize video intercom function.
2.2.1 VTO Settings
VTO interfaces of different models might be different, and the actual interface shall prevail.
For the first time, please initialize and modify login password.
Please ensure that default IP addresses of PC and VTO are in the same network segment.
Default IP address of VTO is 192.168.1.110.
Power on the device, and enter default IP address of VTO at the address bar of PC
browser. The system displays “Device Init” interface, as shown in Figure 2-4.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 9
Figure 2-4
According to interface prompt, enter “Password” and “Confirm Password”, and click
“Next”. Select “Email” and enter your Email address. This Email address is used to
reset the password, so it is recommended that it should be set.
Enter default address in the browser to login WEB interface.
Default username is admin. Password is the new one set during initialization.
Select “Network Setting > Basic”.
The system displays “TCP/IP” interface, as shown in Figure 2-5.
Figure 2-5
Enter the planned “IP Address”, “Subnet Mask” and “Gateway”, and click “OK”.
After modification is completed, VTO reboots automatically, while the following two
cases occur at WEB interface.
If PC is in the planned network segment, WEB interface jumps to new IP login
interface automatically.
If PC is not in the planned network segment, login will be failed. Please add PC to
the planned network segment and login WEB interface again.
Login WEB interface again; select “Local Setting > Basic”.
The system displays “Device Properties” interface, as shown in Figure 2-6.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 10
Figure 2-6
Select system type as “TCP/IP”.
Click “OK” to save the settings.
Reboot the device manually, or wait for auto reboot and put the settings into effect.
Login WEB interface again; select “Network Setting > SIP Server”.
The system displays “SIP Server” interface, as shown in Figure 2-7.
Figure 2-7
Select server type.
When this VTO or another VTO works as SIP server, select “Server Type” to
be “VTO”. It applies to a scenario where there is only one unit.
When the platform (Express/DSS) works as SIP server, select “Server Type” to
be “Express/DSS”. It applies to a scenario where there are multiple buildings or
multiple units.
Set VTO number and click “OK” to save config.
When the platform works as SIP server, if it is necessary to set “Building No.”
and “Building Unit No.”, please enable “Support Building” and “Support Unit”
and set them.
After VTO is set to be SIP server and configured, group call function will
appear at the interface. To realize group call, please select “Enable” after the
group call.
Select “Network Setting > SIP Server”.
The system displays “SIP Server” interface, as shown in Figure 2-8.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 11
Figure 2-8
This VTO works as SIP server.
Select “SIP Server Enable”, and click “OK” to save config. The VTO reboots
automatically.
Another VTO or platform works as SIP server.
Set parameters by reference to Table 2-1 and click “OK”. The VTO reboots
automatically.
Parameter
Description
IP Address
IP address of SIP server.
Port
It is 5060 by default when another VTO works as
SIP server.
It is 5080 by default when the platform works as
SIP server.
Username/Password
Use default value.
SIP Domain
It shall be VDP when another VTO works as SIP
server.
It can be null or keep default value when the
platform works as SIP server.
Login Username/
Password
Username and password to login SIP server.
Table 2-1
VTO settings have been completed if the platform or another VTO works as SIP
server.
If this VTO works as SIP server, “VTO No. Management” and “Room No.
Management” appears in the left parameter tab. Please add VTO and VTH by
reference to “Step 9” and “Step 10”.
(Optional) Login WEB interface again; select “Household Setting > VTO No.
Management”.
The system displays “VTO No. Management” interface, as shown in Figure 2-9.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 12
Figure 2-9
Click “Add”, set outdoor station parameters by reference to Table 2-2 and click “OK”.
Repeat this step to add other outdoor stations in the group.
Parameter
Description
VTO No.
VTO number.
Register Password
Signaling interactive use in SIP system. Adopt default
value.
Build No.
Number of the building where VTO is located.
Unit No.
Number of the unit where VTO is located.
IP Address
IP address of VTO.
Username/Password
Username and password to login WEB interface of this
VTO.
Table 2-2
(Optional) Select “Household Setting > Room No. Management”.
The system displays “Room No. Management” interface, as shown in Figure 2-10.
When there are master VTH and extension, both shall be added.
Figure 2-10
Click “Add”, set VTH parameters by reference to Table 2-3 and click “OK”. Repeat
these steps to add other VTH in the group.
Parameter
Description
Family Name
Set VTH username and nickname, in order to distinguish.
First Name
Nick Name

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 13
Parameter
Description
Room No.
Set VTH room number.
VTH room number consists of 1～6 numbers, letters, or
their combinations.. It shall be consistent with room
number configured at VTH.
When there are master VTH and extensions, to realize
group call function, master VTH short no. shall end with
“#0”, whereas extension VTH short no. shall end with #1,
#2 and #3. For example, if master VTH is 101#0,
extensions will be 101#1, 101#2…
Register Type
Signaling interactive use in SIP system. Adopt default value.
Register Password
Table 2-3
2.2.2 VTH Settings
2.2.2.1 Initialization
For the first time, please initialize the password and bind Email. Password is used to enter
project setting interface, while Email is used to retrieve your password when you forget it.
Power on the device.
The system displays “Welcome” and enters “Initialization” interface, as shown in Figure
2-11.

错误!使用“开始”选项卡将 Heading 1,l1,H1,Title1,Normal + Font: Helvetica,Bold,Space Before
12 pt,Not Bold,Heading One,h1,Head1,Head,1,Numbered,nu,Level 1 Head,1st level,Section He
ad,Sec1,h11,1st level1,h12,1st level2,h13,1st level3,h14,1st level4,h15,1st level5,h16,h17 14
Figure 2-11
Enter “Password”, “Confirm Pwd” and “Email”. Press [OK].
Press [Setting] for more than 6 seconds, enter the password set during initialization,
and click [OK].
Click [Network].
The system displays “Network” interface, as shown in Figure 2-12 or Figure 2-13.
IP addresses of VTH and VTO shall be in the same network segment. Otherwise, VTH
will fail to obtain VTO info after configuration.
Figure 2-12
Figure 2-13
LAN