Dahua KTA02 User manual

Analog 4-Wire Video Intercom
Quick Start Guide
V1.0.0
V1.0.0

I
Foreword
General
This document mainly introduces structure, installation, wiring and menu operations of the
analog 4-wire video intercom.
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words
Meaning
DANGER
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
WARNING
Indicates a medium or low potential hazard which, if not avoided,
could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or unpredictable
result.
TIPS
Provides methods to help you solve a problem or save you time.
NOTE
Provides additional information as the emphasis and supplement
to the text.
Revision History
Version
Revision Content
Release Time
V1.0.0
First release.
August 2020
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
jurisdictions. For detailed information, refer to the paper manual, CD-ROM, QR code or our
official website. If there is inconsistency between paper 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, we reserve the right of final explanation.

II
Upgrade the reader software or try other mainstream reader software if the manual (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
occurring when using the device.
If there is any uncertainty or controversy, we reserve the right of final explanation.

III
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 Requirements
Do not expose the device to direct sunlight or heat source.
Do not install the device in a humid or dusty area.
Install the device horizontally at stable places to prevent it from falling.
Do not drip or splash liquids onto the device; do not put on the device anything filled with
liquids.
Install the device at well-ventilated places and do not block its ventilation opening.
Use the device only within rated input and output range.
Do not dismantle the device by yourself.
The device should be used with screened network cables.
Power Requirements
Use recommended power cables in the region under their rated specification.
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.
Device Update
Do not cut off power supply during device update. Power supply can be cut off only after the
device has completed update and has restarted.

IV
Table of Contents
Foreword ..................................................................................................................................................I
Important Safeguards and Warnings...................................................................................................III
1 Structure ..............................................................................................................................................1
Introduction .................................................................................................................................1
Features ......................................................................................................................................1
Front Panel..................................................................................................................................1
Rear Panel ..................................................................................................................................3
2 Installation ...........................................................................................................................................4
Indoor Monitor .............................................................................................................................4
Door Station ................................................................................................................................4
3 Wiring ...................................................................................................................................................6
Preparations................................................................................................................................6
3.1.1 Port Connection Rules ......................................................................................................6
3.1.2 Cord Specification .............................................................................................................7
Wiring One Door Station and One Indoor Monitor.......................................................................7
Wiring Three Door Stations and One Indoor Monitor ..................................................................8
Wiring Two Door Stations and Three Indoor Monitors.................................................................9
4 Menu Operations ...............................................................................................................................10
Cybersecurity Recommendations ..................................................................................11

1
1 Structure
Introduction
The analog 4-wire video intercom consists of a door station and an indoor monitor. It is
applicable to buildings, such as residential buildings, for people to do voice and video calls. The
door station is installed outdoors and indoor monitor is installed indoors.
Features
Indoor Monitor
Real-time video/voice communication
Can be connected to three door stations
Can be connected to cameras (CVBS)
Plug-and-play
Door Station
Real-time voice communication
Self-adaptive IR illumination
Built-in camera (720 × 576@50I)
Front Panel
Front panel

2
Table 1-1 Front panel
No.
Icon
Description
1
–
Microphone.
2
Press to hang up the incoming call.
3
Bring up the menu.
4
When someone is calling from the door station:
Press once to do voice communication with the person.
Press twice quickly to hang up.
5
When someone is calling from the door station, press to do voice
communication with the person.
When no one is calling, press once, twice, three times and four times to
view live video of: door station 1, door station 2, analog camera 1 and
analog camera 2 respectively.
6
When someone is calling, press to open the door where the door station is
installed.
7
–
Power indicator.
8
–
LCD screen.
9
–
Microphone.
10
–
Built-in camera.
11
–
Power indicator.
12
–
Call button.
Press once to call indoor monitor.
Press and hold for 10 seconds to change the bell type of the door
station. The power indicator will flash.
Press and hold for 15 seconds to turn up the bell volume of the door
station. The power indicator will flash. When the volume reaches
maximum, this step will set it to minimum. Repeat this step to set
appropriate volume.
Press and hold for 20 seconds to change to DWDR (digital wide
dynamic range)/normal mode of the door station. The power indicator
will flash.
13
–
Speaker.

3
Rear Panel
Rear panel
Table 1-2 Rear panel
No.
Description
No.
Description
1
Analog camera port 1.
6
VTH cascading port 1.
2
VTO port 1.
7
VTH cascading port 2.
3
VTO port 2.
8
VTO hanging slot.
4
Power input.
9
Wires.
5
Analog camera port 2.
–
–

4
2 Installation
Indoor Monitor
Fix the bracket on the wall by screws, hang the indoor monitor on the bracket, and then apply
silicone sealant to the gap between the device and the wall.
Indoor monitor installation
Door Station
Install the door station bracket on the wall, and then hang the door station on the bracket; or
install the door station cover on the wall, and then hang the door station on the cover. Finally,
apply silicone sealant to the gap between the device and the wall.
Door station installation

5
Apply silicone sealant to the gap between the device and the wall