Dahua VTH Series Quick Start Manual
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Dahua VTH Series Quick Start Manual

Analog 4-wire video intercom
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Analog 4-Wire Video Intercom
Quick Start Guide
V1.2.2

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Summary of Contents for Dahua VTH Series

  • Page 1 Analog 4-Wire Video Intercom Quick Start Guide V1.2.2...

  • Page 2: Foreword

    Foreword General This manual mainly introduces structure, installation, wiring and menu operations of the analog 4-wire video intercom. Read carefully before using the device, and keep the manual safe for future reference. Model 7-inch and 4.3-inch VTH 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...
  • Page 3 measures which include but are not limited: Providing clear and visible identification to inform people of the existence of the surveillance area and provide required contact information. About the Manual The manual is for reference only. Slight differences might be found between the manual and the ...

  • Page 4: Important Safeguards And Warnings

    Important Safeguards and Warnings This section introduces content covering the proper handling of the device, hazard prevention, and prevention of property damage. Read carefully before using the device, comply with the guidelines when using it. Operation Requirements ● Check whether the power supply is correct before use. ●...

  • Page 5: Table Of Contents

    Table of Contents Foreword ................................I Important Safeguards and Warnings ......................III 1 Structure ................................ 1 Introduction ....................................1 Features ......................................1 Front Panel ....................................1 1.3.1 7-inch VTH ..................................1 1.3.2 4.3-inch VTH ..................................2 Rear Panel ..................................... 4 2 Installation ..............................

  • Page 6: Structure

    Structure Introduction The analog 4-wire video intercom consists of a door station ("VTO") and an indoor monitor ("VTH"). It is applicable to buildings, such as residential buildings, for people to do voice and video calls. The VTO is installed outdoors and VTH is installed indoors. Features Real-time video/voice communication ...

  • Page 7: Inch Vth

    1.3.2 4.3-inch VTH Front panel...
  • Page 8 Table 1-1 Front panel description Icon Description Microphone. – Press to hang up the incoming call. Take snapshots during monitoring (only supported by VTH1020J-T). Wake up the screen, and bring up the menu. For how to operate the menu, see "4 Menu Operations". When someone is calling from the VTO: Press once to do voice communication with the person.

  • Page 9: Rear Panel

    Rear Panel There might be slight differences in the real panel among different models. But they have the same function ports. Rear panel Table 1-2 Rear panel Description Description Analog camera port 1. VTH cascading port 1. VTO port 1. VTH cascading port 2.

  • Page 10: Installation

    Installation Do not install devices in harsh environment with condensation, high temperature, dust,  corrosive substance and direct sunlight. In case of abnormality after powering on the device, cut off the power supply at once, and unplug  the network cable. Power on after troubleshooting. Installation should be done by professional teams.

  • Page 11: Vto

    VTH installation Install the VTO bracket on the wall, and then hang the VTO on the bracket; or install the VTO cover on the wall, and then hang the VTO on the cover. Finally, apply silicone sealant to the gap between the device and the wall.
  • Page 12 Apply silicone sealant to the gap between the device and the wall...

  • Page 13: Wiring

    Wiring At most 2 VTOs and 3 VTHs can be wired in one communication system. Preparations 3.1.1 Port Connection Rules Port connection rules Port A of an VTH can be connected to Port C of another VTH to do data communication. ...

  • Page 14: Wiring One Vto And One Vth

    Depending on the distance between the VTO and VTH, you need to select RVV4 cords of different specifications. Table 3-1 Cord specification Transmission Distance (TD) RVV4 Cord Specification TD ≤ 10 m RVV4 × 0.3 mm² 10 m < TD ≤ 30 m RVV4 ×...

  • Page 15: Wiring Three Vtos And One Vth

    Wiring Three VTOs and One VTH Wiring (2)

  • Page 16: Wiring Two Vtos And Three Vths

    Wiring Two VTOs and Three VTHs Wiring (3) The recommended analog cameras (CVBS) are HAC 1230 series.

  • Page 17: Menu Operations

    Menu Operations You can configure the functions of the VTH, such as volume, brightness, and more. Only VTH1020J-T supports the Snapshots and Time functions.  All configurations will be saved after you exit the menu.  Menu Table 4-1 Menu operations Icon Function Used to confirm your operation when you are using the Snapshots and Time...
  • Page 18 Press to go to the monitoring image that you want. , and then Successful will appear on the screen. Press , and then Successful will appear on the When a VTO is calling or in a call with a VTO, press ...

  • Page 19: Time

    Viewing a snapshot Press to view the previous or next snapshot. Or you can press to go back to the list of snapshots, and then select the one that you need. , Detele? will appear on the screen, and then press To delete a snapshot, press confirm.
  • Page 20 Confirm your operation Press , and then the device will restart.

  • Page 21: Cybersecurity Recommendations

    Cybersecurity Recommendations Mandatory actions to be taken for basic device network security: 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 ...
  • Page 22 Assign Accounts and Privileges Reasonably According to business and management requirements, reasonably add users and assign a minimum set of permissions to them. Disable Unnecessary Services and Choose Secure Modes If not needed, it is recommended to turn off some services such as SNMP, SMTP, UPnP, etc., to reduce risks.

This manual is also suitable for:

Vth1020j

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