Dahua Digital VTH Series User manual

Digital VTH
User’s Manual
V1.2.0

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 8 characters and a
combination of special characters, numbers, and upper and lower case letters.
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. Change Default HTTP and TCP Ports:
● Change default HTTP and TCP ports for systems. These are the two ports used to
communicate and to view video feeds remotely.
● These ports can be changed to any set of numbers between 1025-65535. Avoiding the
default ports reduces the risk of outsiders being able to guess which ports you are using.
3. Enable HTTPS/SSL:
Set up an SSL Certificate to enable HTTPS. This will encrypt all communication between your
devices and recorder.
4. Enable IP Filter:
Enabling your IP filter will prevent everyone, except those with specified IP addresses, from
accessing the system.
5. Change ONVIF Password:
On older IP Camera firmware, the ONVIF password does not change when you change the
system’s credentials. You will need to either update the camera’s firmware to the latest revision
or manually change the ONVIF password.
6. Forward Only Ports You Need:

Cybersecurity Recommendations II
● Only forward the HTTP and TCP ports that you need to use. Do not forward a huge range of
numbers to the device. Do not DMZ the device's IP address.
● You do not need to forward any ports for individual cameras if they are all connected to a
recorder on site; just the NVR is needed.
7. Disable Auto-Login on SmartPSS:
Those using SmartPSS to view their system and on a computer that is used by multiple people
should disable auto-login. This adds a layer of security to prevent users without the appropriate
credentials from accessing the system.
8. Use a Different Username and Password for SmartPSS:
In the event that your social media, bank, email, etc. account is compromised, you would not
want someone collecting those passwords and trying them out on your video surveillance
system. Using a different username and password for your security system will make it more
difficult for someone to guess their way into your system.
9. Limit Features of Guest Accounts:
If your system is set up for multiple users, ensure that each user only has rights to features and
functions they need to use to perform their job.
10. UPnP:
● UPnP will automatically try to forward ports in your router or modem. Normally this would be a
good thing. However, if your system automatically forwards the ports and you leave the
credentials defaulted, you may end up with unwanted visitors.
● If you manually forwarded the HTTP and TCP ports in your router/modem, this feature should
be turned off regardless. Disabling UPnP is recommended when the function is not used in real
applications.
11. SNMP:
Disable SNMP if you are not using it. If you are using SNMP, you should do so only temporarily,
for tracing and testing purposes only.
12. Multicast:
Multicast is used to share video streams between two recorders. Currently there are no known
issues involving Multicast, but if you are not using this feature, deactivation can enhance your
network security.
13. Check the Log:
If you suspect that someone has gained unauthorized access to your system, you can check
the system log. The system log will show you which IP addresses were used to login to your
system and what was accessed.
14. Physically Lock Down the Device:

Cybersecurity Recommendations III
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.
15. Connect IP Cameras to the PoE Ports on the Back of an NVR:
Cameras connected to thePoE ports on the back of an NVR are isolated from the outside world
and cannot be accessed directly.
16. 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 IV
Foreword
General
This document mainly introduces function, structure, networking, installation process,
debugging, UI operation and technical parameter of digital VTH products matched with version
4.2 UI interface.
Models
Type
Model Series
Specific Model
Digital
VTH
VTH5221 series
VTH5221DW, VTH5221D, VTH5221DW-C, VTH5221D-C,
VTH5221E-H, VTH5221EW-H
VTH5241 series
VTH5241DW
VTH15
series
Type A
VTH1520A, VTH1520AS-H, VTH1520AH, VTH1520AS
Type B
VTH1550B, VTH1560B(W)
Type
CH
VTH1510CH, VTH1520CH, VTH1550CH, VTH1550CHM
VTH16 series
VTH1660CH
VTH2X series
VTH2221A
2-wire VTH
VTH1550CHW-2, VTH5222CH
Device Upgrade
Please don’t cut off power supply during upgrade. Power can be cut off only after the device
completes upgrade and reboots.
Safety Instructions
The following categorized signal words with defined meaning 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, lower performance, or unpredictable result.
Provides methods to help you solve a problem or save you time.

Foreword V
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
2017.1.15
2
V1.1.0
Add VTH5221E-H/VTH5221EW-H panel introduction
and installation drawing.
2018.5.15
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 Manual
The Manual is for reference only. If there is inconsistency between the Manual 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 Manual.
The Manual 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
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 Manual. 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 Manual 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 VI
Important Safeguards and Warnings
The following description is the correct application method of the device. Please read the
manual carefully before use, in order to prevent danger and property loss. Strictly conform to
the manual 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.
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 VII
Table of Contents
Cybersecurity Recommendations ......................................................................................................... I
Foreword ................................................................................................................................................IV
Important Safeguards and Warnings ..................................................................................................VI
1 Product Overview ............................................................................................................................... 1
1.1 Product Profile ...............................................................................................................................1
1.2 Product Function ...........................................................................................................................1
2 Product Structure ............................................................................................................................... 3
2.1 Front Panel .................................................................................................................................... 3
2.1.1 VTH5221 Series /VTH5241 Series.....................................................................................3
2.1.2 VTH5221E-H/VTH5221EW-H............................................................................................4
2.1.3 VTH15 Series Type A/B ...................................................................................................... 5
2.1.4 VTH15 Series Type CH /VTH5222CH................................................................................8
2.1.5 VTH1660CH .......................................................................................................................9
2.1.6 VTH2221A ........................................................................................................................10
2.2 Rear Panel Port ............................................................................................................................11
2.2.1 VTH5221 Series /VTH5241 Series....................................................................................11
2.2.2 VTH5221E-H/VTH5221EW-H...........................................................................................11
2.2.3 VTH15 Series Type A/Type B/Type CH............................................................................ 12
2.2.4 VTH5222CH/VTH5222CHW-2.........................................................................................12
2.2.5 VTH1660CH .....................................................................................................................13
2.2.6 VTH2221A ........................................................................................................................13
3 Network Diagram .............................................................................................................................. 15
3.1 2-wire System..............................................................................................................................15
3.2 Digital System..............................................................................................................................16
4 Device Installation ............................................................................................................................ 18
4.1 Installation Flow Chart................................................................................................................. 18
4.2 Open-case Inspection..................................................................................................................18
4.3 Installation Requirement.............................................................................................................. 19
4.4 Device Installation .......................................................................................................................19
4.4.1 Surface Installation ........................................................................................................... 19
4.4.2 Installation with 86 Box..................................................................................................... 20
4.4.3 Desktop Installation with Bracket ..................................................................................... 20
5 Device Debugging ............................................................................................................................ 22
5.1 Debugging Settings .....................................................................................................................22
5.1.1 VTO Settings.....................................................................................................................22
5.1.2 VTH Settings.....................................................................................................................30
5.2 Debugging Verification ................................................................................................................37
5.2.1 VTO Calls VTH.................................................................................................................37
5.2.2 VTH Monitors VTO ...........................................................................................................37
6 Interface Operation ............................................................................................................................. 39
6.1 Main Interface ..............................................................................................................................39

Table of Contents VIII
6.2 Setting..........................................................................................................................................41
6.2.1 Ring Settings ....................................................................................................................41
6.2.2 DND Settings .................................................................................................................... 45
6.2.3 Alarm Setting ....................................................................................................................46
6.2.4 Mode Setting.....................................................................................................................50
6.2.5 Forward Setting ................................................................................................................ 51
6.2.6 General Setting................................................................................................................. 52
6.2.7 Product Info ......................................................................................................................58
6.3 Project Settings ...........................................................................................................................59
6.3.1 Forget Password...............................................................................................................59
6.3.2 Network Settings...............................................................................................................60
6.3.3 VTH Config .......................................................................................................................63
6.3.4 VTO Config .......................................................................................................................64
6.3.5 Default...............................................................................................................................65
6.3.6 Reset MSG .......................................................................................................................65
6.4 Call...............................................................................................................................................66
6.4.1 Contact..............................................................................................................................66
6.4.2 Call User ...........................................................................................................................67
6.4.3 Call from User...................................................................................................................70
6.4.4 Call from VTO ...................................................................................................................71
6.4.5 Recent Call .......................................................................................................................72
6.5 Monitor......................................................................................................................................... 73
6.5.1 Monitoring of VTO............................................................................................................. 73
6.5.2 Monitoring of IPC .............................................................................................................. 76
6.5.3 Favorite .............................................................................................................................79
6.6 SOS .............................................................................................................................................80
6.7 Info...............................................................................................................................................80
6.7.1 Security Alarm...................................................................................................................80
6.7.2 Guest Message.................................................................................................................82
6.7.3 Publish Info .......................................................................................................................82
6.7.4 Video Pictures...................................................................................................................83
6.8 Unlock Function...........................................................................................................................84
6.9 Arm and Disarm Function............................................................................................................ 84
6.9.1 Arm.................................................................................................................................... 84
6.9.2 Disarm...............................................................................................................................85
7 DSS Mobile for VDP............................................................................................................................ 1
7.1 Downloading the App.....................................................................................................................1
7.2 Registration and Login...................................................................................................................1
7.3 Call Functions ................................................................................................................................6
7.3.1 Configuring Call Forward.................................................................................................... 6
7.3.2 Calling Operations ..............................................................................................................8
7.4 Monitor......................................................................................................................................... 10
7.5 Call Records ................................................................................................................................12
7.6 Message ...................................................................................................................................... 13
7.7 Setting..........................................................................................................................................15

Product Overview 1
1 Product Overview
1.1 Product Profile
VTH series product is a digital video intercom home station for numerous homes, integrating
monitoring, intercom and unlocking. With embedded technology, all IP network, SNMP (Simple
Network Management Protocol) technology and network encryption technology, achieve more
stable system operation, richer functional extension, more convenient system management
and safer data transmission.
1.2 Product Function
Wi-Fi Networking
Realize Wi-Fi networking of devices.
Video Intercom
Call or connect VTO and VTH; realize talk.
Monitoring
Monitor fence station, VTO and IPC devices.
SOS
Press the key to call the Call Center in case of an emergency.
Auto Snapshot
Snapshot the call picture or monitoring picture, and store them in SD card or FTP.
DND (Do Not Disturb)
Avoid other’s incoming call interference.
Remote Unlock
Realize remote unlock.

Product Overview 2
Arm and Disarm
Provide 6-channel area setting, arm and disarm them.
Playback
Play back videos and pictures in SD card of this device.
Alarm
After 6-channel area triggers an alarm, pop up an alarm prompt interface, provide linkage alarm
output and report to Call Center.
Record Inquiry
Inquire call records and alarm records.
Message Inquiry
Inquire guests’ message, videos, pictures and announcements issued by Property
Management Center.

Product Structure 3
2 Product Structure
2.1 Front Panel
2.1.1 VTH5221 Series /VTH5241 Series
VTH5221D is a 7″ digital indoor monitor. Their front panels have the same size, as shown in
Figure 2-1. Please refer to Table 2-1 for details.
Figure 2-1
No.
Name
Description
1
Camera
occlusion
switch
Slide it to occlude or open the camera.
2
Camera
Only VTH5221DW-C supports front-facing camera.
3
Microphone
Voice input.
4
Display screen
7″ type D digital VTH owns a 7″ high-definition LCD.
10″ type D digital VTH owns a 10″ high-definition LCD.
5
Unlock
Press this key during calling, talking, monitoring and speaking of

Product Structure 4
No.
Name
Description
VTO, so corresponding VTO will be unlocked.
6
Monitor
In standby mode, press this key to monitor the main VTO.
During monitoring, press this key to exit monitoring.
7
Menu
Press this key to return to main menu.
8
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 and fence station.
During speaking, press this key to exit speaking.
9
SOS
Press this key to call the Call Center in case of emergency.
Table 2-1
2.1.2 VTH5221E-H/VTH5221EW-H
VTH5221E-H/VTH5221EW-H is two types of digital VTH with handset. They are the same
except appearance color, as shown in Figure 2-2 and Figure 2-3.
Figure 2-2
No.
Name
Description
1
Display screen
7″ high-definition LCD.
2
Microphone
Voice input.
3
Indicator
The indicator light is normally on after power-on.
4
Handset
Pick up the handset, and dial pad will be displayed.

Product Structure 5
Table 2-2
Figure 2-3
No.
Name
Description
1
RJ11 port
Port of connecting cable between handset and VTH.
2
Reboot button
Long press the button to reboot VTH.
3
TF card slot
TF card slot, max. 64GB.
4
RJ45 port
RJ45 network cable port.
5
RJ11 port
Port of connecting cable between handset and VTH.
Table 2-3
2.1.3 VTH15 Series Type A/B
In VTH15 series, different types of devices have different front panels.
Figure 2-4 VTH15 Series Type A
Icon
Name
Description

Product Structure 6
Icon
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
apartment VTO, villa VTO and fence station.
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
Press this key during calling, talking, monitoring and
speaking of VTO, so corresponding VTO will be
unlocked.
Power
indicator
If this indicator turns on in green, it represents normal
power supply.
Network
indicator
If this indicator turns on, it represents normal
communication with VTO.
If this indicator turns off, it represents abnormal
communication with VTO.
Message
indicator
If this indicator turns on, it represents that there are
unread messages.
DND
indicator
If this indicator turns on in green, it represents that DND
function is enabled.
For DND settings, please refer to “6.2.2 DND Settings”.

Product Structure 7
Table 2-4
Figure 2-5 VTH15 Series Type B
Icon
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
apartment VTO, villa VTO and fence station.
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
Press this key during calling, talking, monitoring and
speaking of VTO, so corresponding VTO will be
unlocked.
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.

Product Structure 8
Table 2-5
2.1.4 VTH15 Series Type CH /VTH5222CH
Figure 2-6
Icon
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 apartment
VTO, villa VTO and fence station.
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
Press this key during calling, talking, monitoring and
speaking of VTO, so corresponding VTO will be unlocked.

Product Structure 9
Table 2-6
2.1.5 VTH1660CH
Figure 2-7
No.
Name
Description
1
Power indicator
If this indicator turns on in green, it represents
normal power supply.
2
Microphone
Audio input.

Product Structure 10
Table 2-7
2.1.6 VTH2221A
Figure 2-8
Icon
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
apartment VTO, villa VTO and fence station.
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
Press this key during calling, talking, monitoring and
speaking of VTO, so corresponding VTO will be
unlocked.
Power
indicator
If this indicator turns on in green, it represents normal
power supply.
Message
indicator
If this indicator turns on, it represents that there are
unread messages.

Product Structure 11
Table 2-8
2.2 Rear Panel Port
2.2.1 VTH5221 Series /VTH5241 Series
Port positions are slightly different on the rear panel of VTH5221 series and VTH5241 series,
but the same port owns the same function. Taking VTH5221 as an example, specific functions
of ports are introduced, as shown in Figure 2-9.
Figure 2-9
2.2.2 VTH5221E-H/VTH5221EW-H
Port positions are slightly different on the rear panel, but the same port owns the same function.
VTH5221E-H/VTH5221EW-H front panels are shown in Figure 2-10.