Analog 4-Wire Video Intercom Quick Start Guide
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
VTH1020J, and VTH1020J-T
Safety Instructions
Signal Words
| 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, reductions in performance, or unpredictable results. |
| ? TIPS | Provides methods to help you solve a problem or save time. |
| ? NOTE | Provides additional information as a supplement to the text. |
Revision History
| Version | Revision Content | Release Time |
|---|---|---|
| V1.1.1 | Revised wiring description. | November 2022 |
| V1.1.0 | Added description of the functions of VTH1020J-T. Added Factory Reset function. | March 2021 |
| V1.0.0 | First release. | August 2020 |
Privacy Protection Notice
As the device user or data controller, you might collect the personal data of others such as their face, fingerprints, and license plate number. You need to be in compliance with your local privacy protection laws and regulations to protect the legitimate rights and interests of other people by implementing 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 product.
- We are not liable for losses incurred due to operating the product in ways that are not in compliance with the manual.
- The manual will be updated according to the latest laws and regulations of related jurisdictions. For detailed information, see the paper user's manual, use our CD-ROM, scan the QR code or visit our official website. The manual is for reference only. Slight differences might be found between the electronic version and the paper version.
- All designs and software are subject to change without prior written notice. Product updates might result in some differences appearing between the actual product and the manual. Please contact customer service for the latest program and supplementary documentation.
- There might be errors in the print or deviations in the description of the functions, operations and technical data. If there is any doubt or dispute, we reserve the right of final explanation.
- Upgrade the reader software or try other mainstream reader software if the manual (in PDF format) cannot be opened.
- All trademarks, registered trademarks and company names in the manual are properties of their respective owners.
- Please visit our website, contact the supplier or customer service if any problems occur while using the device.
- If there is any uncertainty or controversy, we reserve the right of final explanation.
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.
- Do not unplug the power cord on the side of the device while the adapter is powered on.
- Operate the device within the rated range of power input and output.
- Transport, use and store the device under allowed humidity and temperature conditions.
- Do not drop or splash liquid onto the device, and make sure that there is no object filled with liquid on the device to prevent liquid from flowing into it.
- Do not disassemble the device without professional instruction.
Installation Requirements
- ⚠️ WARNING Do not connect the power adapter to the device while the adapter is powered on.
- Strictly comply with the local electric safety code and standards. Make sure the ambient voltage is stable and meets the power supply requirements of the device.
- Do not connect the device to two or more kinds of power supplies, to avoid damage to the device.
- Improper use of the battery might result in a fire or explosion.
- Personnel working at heights must take all necessary measures to ensure personal safety including wearing a helmet and safety belts.
- Do not place the device in a place exposed to sunlight or near heat sources.
- Keep the device away from dampness, dust, and soot.
- Install the device on a stable surface to prevent it from falling.
- Install the device in a well-ventilated place, and do not block its ventilation.
- Use an adapter or cabinet power supply provided by the manufacturer.
- Use the power cords that are recommended for the region and conform to the rated power specifications.
- The power supply must conform to the requirements of ES1 in IEC 62368-1 standard and be no higher than PS2. Please note that the power supply requirements are subject to the device label.
- The device is a class I electrical appliance. Make sure that the power supply of the device is connected to a power socket with protective earthing.
1 Structure
1.1 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.
1.2 Features
VTH
- Real-time video/voice communication
- Can be connected to three VTOs
- Can be connected to cameras (CVBS)
- Plug-and-play
VTO
- Real-time voice communication
- Self-adaptive IR illumination
1.3 Front Panel
Diagram Description: The front panel of the indoor monitor (VTH) features an LCD screen and several control buttons. The door station (VTO) has a camera, microphone, speaker, and call button.
Table 1-1 Front panel
| No. | Icon | Description |
|---|---|---|
| 1 | [Microphone icon] | Microphone. |
| 2 | [Hang up/Snapshot icon] | Press to hang up the incoming call. Take snapshots during monitoring (only supported by VTH1020J-T). |
| 3 | [Menu icon] | Wake up the screen, and bring up the menu. For how to operate the menu, see "4 Menu Operations". |
| 4 | [Call response icon] | When someone is calling from the VTO: Press once to do voice communication with the person. Press twice quickly to hang up. |
| 5 | [Call/Video icon] | When someone is calling from the VTO: Press to talk to the person (only supported by VTH1020J). Press to take snapshots (only supported by VTH1020J-T). When no one is calling: Press once, twice, three times and four times to view live video of: VTO1, VTO2, analog camera 1 and analog camera 2 respectively. On any live video, press to take snapshots (only supported by VTH1020J-T). |
| 6 | [Door unlock icon] | When someone is calling, press to open the door where the VTO is installed. |
| 7 | [Power indicator] | Power indicator. |
| 8 | [LCD screen] | LCD screen. |
| 9 | [Microphone] | Microphone. |
| 10 | [Built-in camera] | Built-in camera. |
| 11 | [Power indicator] | Power indicator. |
| 12 | [Call button] | Call button. Press once to call the VTH. Press and hold for 10 seconds to change the bell type of the VTO. The power indicator will flash. Press and hold for 15 seconds to turn up the bell volume of the VTO. 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 for the VTO. The power indicator will flash. |
| 13 | [Speaker] | Speaker. |
1.4 Rear Panel
Diagram Description: The rear panel of the VTH shows connection ports for analog cameras, VTOs, and power. The VTO also has connection ports and a hanging slot.
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. |
2 Installation
2.1 VTH
Diagram Description: Illustrates mounting the VTH indoor monitor. It shows attaching a bracket to the wall with screws, hanging the VTH unit onto the bracket, and applying silicone sealant to seal the gap between the device and the wall.
2.2 VTO
Diagram Description: Illustrates mounting the VTO door station. It shows installing a bracket on the wall, hanging the VTO unit onto the bracket, or installing the VTO cover on the wall and then hanging the VTO. Silicone sealant is applied to seal the gap.
Diagram Description: Shows applying silicone sealant to the gap between the device (VTH or VTO) and the wall.
3 Wiring
At most 2 VTOs and 3 VTHs can be wired in one communication system.
3.1 Preparations
3.1.1 Port Connection Rules
Diagram Description: Shows port labels A, B, C, D on the VTH units and illustrates valid and invalid connection paths between them for data communication.
- Port A of a VTH can be connected to Port C of another VTH for data communication.
- Port B of a VTH can be connected to Port D of another VTH for data communication.
- Port A of a VTH cannot be connected to Port B or D of another VTH for data communication.
- Port C of a VTH cannot be connected to Port B or D of another VTH for data communication.
3.1.2 Cord Specification
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 × 0.5 mm² |
| 30 m < TD ≤ 50 m | RVV4 × 0.75 mm² |
If the distance between the VTO and VTH is more than 50 m, use coaxial cables.
Important: ❗ Do not pull the cords violently. During wiring, wrap the cord joints with insulated rubber tape to prevent short circuit.
3.2 Wiring One VTO and One VTH
Diagram Description: Shows the wiring for a single VTO connected to a single VTH. It details connections for power, video, audio, ground, and an exit button, including color coding for wires (Red, Yellow, White, Black) and electric lock connections (Brown-NO, Purple-NC, Yellow-COM).
3.3 Wiring One VTO and Three VTHs
Diagram Description: Illustrates the wiring configuration for one VTO connected to three VTH units. It shows cascading connections and includes details for analog cameras, electric locks, and exit buttons, similar to the single VTH setup.
3.4 Wiring Two VTOs and Three VTHs
Diagram Description: Depicts a more complex wiring setup with two VTOs connected to three VTH units. It details connections for multiple analog cameras, electric locks, and exit buttons, specifying cable types and color codes.
The recommended analog cameras (CVBS) are HAC 1230 series.
4 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.
Table 4-1 Menu operations
| Icon | Function |
|---|---|
| [Confirm icon] | Used to confirm your operation when you are using the Snapshots and Time functions (only supported by VTH1020J-T). |
| [Adjust icon] | Adjust Vol (volume), Bright (brightness), Contrast and BellVol (bell volume), change Bell and turn off DND (do not disturb). |
| [Volume up icon] | Turn up Vol (volume), Bright (brightness), Contrast and BellVol (bell volume), change Bell, turn off DND (do not disturb), and adjust the time. |
| [Select icon] | Select an item. |
| [Exit icon] | Exit the menu and lock the screen. |
| [Back icon] | Go back to the previous interface. |
4.1 Snapshots
You can take snapshots during monitoring, and view the snapshots you have taken.
The VTH can store up to 200 snapshots. If storage is full, the earlier ones will be overwritten.
Taking Snapshots
- During monitoring.
Steps:
- Press [Menu icon] to go to the monitoring image that you want.
- Press [Confirm icon], and then "Successful" will appear on the screen.
- When a VTO is calling or in a call with a VTO, press [Snapshot icon], and then "Successful" will appear on the screen. If the calling lasts more than 1 second, a snapshot will be automatically taken.
Viewing Snapshots
Steps:
- Press [Menu icon] to bring up the menu.
- Press [Select icon], select Snapshots, and then press [Confirm icon].
- Press [Select icon] to select the one that you need, and then press [Confirm icon].
- Press [Previous/Next icon] or [Previous/Next icon] to view the previous or next snapshot. Or you can press [Back icon] to go back to the list of snapshots, and then select the one that you need.
- To delete a snapshot, press [Delete icon], "Detele?" will appear on the screen, and then press [Confirm icon] to confirm.
4.2 Time
Steps:
- Press [Menu icon] to bring up the menu.
- Press [Select icon] to select the part of the time that you want.
- Press [Up arrow icon] or [Down arrow icon] to adjust the number.
4.3 Restoring to Default Settings
Steps:
- Press [Menu icon] to bring up the menu.
- Press [Select icon] to select FactoryReset.
- Press [Confirm icon], and then the device will restart.
