1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Commax Video Door Intercom System, comprising the CDV-43K 4.3-inch Color Video Door Phone and the DRC-4CGN2 Outdoor Door Camera. This system is designed to enhance your home security by allowing visual and audio communication with visitors at your door.
Figure 1: Commax CDV-43K Video Door Phone (left) and DRC-4CGN2 Door Camera (right).
The image displays the two primary components of the Commax video door intercom system. On the left is the white indoor video door phone unit, featuring a rectangular screen at the top displaying a person's face, and control buttons below it. On the right is the dark grey outdoor door camera unit, with a speaker grille, camera lens, and call button. Both units bear the "COMMAX" brand logo.
2. Safety Information
- Ensure all power is disconnected before installation or maintenance to prevent electric shock.
- Installation should be performed by a qualified professional to ensure proper wiring and safety.
- The outdoor camera (DRC-4CGN2) is not waterproof and requires protection from direct water exposure. Install it under an awning or in a sheltered location.
- Do not disassemble or modify the units. Unauthorized modifications can lead to malfunction or electric shock.
- Keep the units away from high temperatures, humidity, and direct sunlight.
3. Package Contents
Verify that all components are present in the package:
- 1 x Commax CDV-43K 4.3" Color Video Door Phone
- 1 x Commax DRC-4CGN2 Outdoor Door Camera
- Mounting accessories (screws, wall plugs)
- User Manual (this document)
4. Setup and Installation
4.1 Wiring Diagram
The system uses a 4-wire connection for both the door camera and the interphone. Ensure correct polarity during wiring.
Figure 2: Rear view of DRC-4CGN2 Door Camera with wiring diagram.
This image shows the back panel of the DRC-4CGN2 outdoor camera. A white label in the center displays the model number, power requirements (12V, 3W max), and a detailed wiring diagram. The diagram illustrates connections for MONITOR (Red, Blue, Yellow, Black wires), CAMERA, ELECTRIC DOOR KEY, and POWER SOURCE. This visual aid is critical for correct installation.
Refer to the wiring diagram on the back of the DRC-4CGN2 camera and the CDV-43K monitor for precise connections. The system requires a 4-wire connection between the monitor and the door camera, and another 4-wire connection if an interphone is used.
4.2 Mounting the Door Camera (DRC-4CGN2)
- Choose a suitable location near your entrance, ensuring it is protected from direct rain and harsh weather. The camera is not waterproof.
- Mount the camera at a height that allows for optimal viewing of visitors (typically 1.4 to 1.6 meters from the ground).
- Use the provided screws and wall plugs to securely fasten the camera unit to the wall.
- Connect the wiring from the camera to the indoor monitor according to the wiring diagram.
4.3 Mounting the Video Door Phone (CDV-43K)
- Select an indoor location, such as a hallway or living room, where the monitor is easily accessible.
- Mount the monitor unit to the wall using the provided mounting bracket and screws.
- Connect the wiring from the outdoor camera and power supply to the monitor unit.
- Ensure all connections are secure before applying power.
5. Operating Instructions
5.1 Receiving a Call
- When a visitor presses the call button on the outdoor camera, the indoor monitor will ring with an electronic chime.
- The screen on the CDV-43K monitor will automatically display the visitor's image.
- To answer the call and initiate two-way audio communication, press the Talk button (often represented by a telephone icon) on the monitor.
5.2 Monitoring the Entrance
- To view the outdoor camera feed without a visitor pressing the call button, press the Monitor button (often represented by an eye icon) on the CDV-43K unit.
- The monitor will display the live feed from the DRC-4CGN2 camera. The display time is approximately 60 ± 10 seconds.
5.3 Door Lock Release
- If connected to an electronic door lock, press the Door Release button (often represented by a key icon) on the CDV-43K monitor to unlock the door for your visitor.
- Ensure the door lock is compatible with the system's output.
5.4 Intercom Function (if applicable)
- If multiple indoor monitors or an interphone are connected, you can communicate between units by pressing the Intercom button (if available) and selecting the desired unit.
5.5 Night Vision
- The DRC-4CGN2 camera features a built-in white LED lamp that automatically turns on in low light conditions.
- This provides clear visibility of visitors even in complete darkness, up to 3 meters in front of the camera.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the monitor screen and camera lens. Do not use abrasive cleaners or solvents.
- Environmental Protection: Ensure the outdoor camera remains protected from direct rain, snow, and excessive moisture. While designed for outdoor use, it is not fully waterproof.
- Wiring Check: Periodically inspect wiring connections for any signs of wear or damage.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No image on monitor |
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| No audio during call |
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| Door lock not releasing |
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| Poor image quality at night |
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8. Specifications
8.1 CDV-43K Video Door Phone Specifications
Figure 3: Commax CDV-43K Video Door Phone with detailed specifications.
This image displays the Commax CDV-43K indoor monitor unit. Below the product image, a table lists its specifications, including Rated Voltage, Power Consumption, Wiring, Screen Size, Communication type, Call Sound details, Time to display the screen, Distance from camera, and Operating Temperature. This provides a quick reference for the monitor's technical details.
| Feature | Detail |
|---|---|
| Model | CDV-43K |
| Screen Size | 4.3" wide TFT Color LCD |
| Wiring | 4 wires with door camera (polarity) / 4 wires with interphone (polarity) |
| Rated Voltage | 100-240 V~, 50/60Hz (Free Voltage) |
| Power Consumption | Stand-by: 2.5W, Maximum: 8W |
| Ringtone (Entrance) | Electronic chime |
| Ringtone (Interphone) | Electronic buzzer |
| Dimension (W×H×D) | 157mm × 167mm × 28mm |
| Operating Temperature | 0°C ~ +50°C (32°F ~ 104°F) |
| Time to display screen | 60 ± 10 seconds |
| Distance from camera | 28m (Φ0.5) / 50m (Φ0.65) / 70m (Φ0.8) |
8.2 DRC-4CGN2 Door Camera Specifications
Figure 4: Commax DRC-4CGN2 Door Camera with detailed specifications.
This image displays the Commax DRC-4CGN2 outdoor camera unit. Below the product image, a table lists its specifications, including Image Sensor type, Power source, Wiring type, Call mode, Camera angle (horizontal and vertical), Angle adjustment, Video Format, Lamp type, Low illumination capability, Workable temperature range, Dimension, and Weight. This provides a quick reference for the camera's technical details.
| Feature | Detail |
|---|---|
| Model | DRC-4CGN2 |
| Image Sensor | CMOS 1/4 inch |
| Power Source | 12V (supplied from the monitor) |
| Wiring (household) | Polar 4 wires |
| Call Mode | Duplex |
| Camera Angle | Horizontal 47°, Vertical 34° |
| Angle Adjustment | Fixed |
| LED Lamp | Built-in white LED (Automatically turns on in night) |
| Min. Illumination | 0.1 Lux (up to 3 m in front of the camera) |
| Operating Temperature | -10°C ~ +50°C (tested up to -40°C) |
| Dimension (W×H×D) | 87.5mm × 120mm × 21mm |
| Weight | 280g |
| International Protection Rating | IP54 |
9. Warranty and Support
Commax products are designed for reliability and performance. For warranty information, please refer to the documentation provided with your purchase or visit the official Commax website.
For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact your local Commax distributor or authorized service center. Ensure you have your product model number (CDV-43K/DRC-4CGN2) and purchase details ready when contacting support.
