1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Commax Videophone Series Door Camera, model DRC-40K. Please read this manual thoroughly before using the product to ensure correct usage and to prevent damage. Keep this manual for future reference.
2. Safety Precautions
- Ensure the power supply is disconnected before installation or maintenance to prevent electric shock.
- Do not expose the unit to direct sunlight, high temperatures, or high humidity.
- Avoid installing the unit in areas with excessive dust or corrosive gases.
- Use only the specified power supply (DC 12V, supplied from the monitor) to prevent damage.
- Do not disassemble or modify the unit. Refer all servicing to qualified personnel.
- Keep the unit away from water and other liquids.
3. Package Contents
Verify that all items are present in the package:
- Commax DRC-40K Door Camera Unit
- Mounting Screws and Anchors
- Instruction Manual (this document)
4. Product Overview
The Commax DRC-40K is a videophone door camera designed for surface mount installation. It features a camera for video communication, a speaker and microphone for audio, a call button for initiating communication, and an embedded night LED for improved visibility in low-light conditions.
Figure 1: Front view of the Commax DRC-40K Door Camera. This image displays the camera lens, speaker grille, microphone, and the circular call button at the bottom. An LED indicator is visible at the top left.
Key Components:
- Camera Lens: Captures video feed of the visitor.
- Speaker/Microphone: Enables two-way audio communication.
- Call Button: Pressed by visitors to initiate a call to the indoor monitor.
- Embedded Night LED: Automatically activates in low light for clear night vision.
5. Installation and Setup
The DRC-40K is designed for surface mount installation. Ensure the installation location is secure, protected from direct heavy rain, and provides a clear view of the visitor.
5.1 Mounting the Unit
- Choose a suitable location near your entrance, typically at eye level.
- Mark the drilling points for the mounting screws using the unit as a template.
- Drill holes and insert wall anchors if necessary.
- Secure the mounting bracket (if separate) or the unit directly to the wall using the provided screws.
5.2 Wiring Connections
The DRC-40K requires connection to an indoor monitor and, optionally, to a door release mechanism. All wiring should be performed with the power supply disconnected.
- To Monitor (Main Unit): Connect the 4-wire cable from the door camera to the corresponding terminals on your Commax indoor monitor. Pay close attention to polarity (+/-) as indicated on both devices. The door camera receives its 12V DC power supply directly from the monitor.
- To Door Release (Optional): Connect the 2-wire cable from the door camera to your electronic door lock or gate release mechanism. These connections are typically non-polarity specific.
Important: Ensure all connections are secure and insulated to prevent short circuits. Refer to your indoor monitor's manual for specific wiring diagrams.
6. Operation
Once installed and powered, the Commax DRC-40K operates in conjunction with your indoor videophone monitor.
- Initiating a Call: A visitor presses the call button on the door camera. This sends a signal to the indoor monitor, which will ring and display the visitor's image.
- Two-Way Communication: From the indoor monitor, you can answer the call to establish two-way audio and video communication with the visitor.
- Door Release: If connected to a door release mechanism, you can unlock the door remotely from the indoor monitor during a call.
- Night Vision: The embedded night LED automatically activates in low-light conditions, providing clear images of visitors even in the dark.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your door camera.
- Cleaning: Gently wipe the camera lens and the unit's surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture.
- Inspection: Periodically check the wiring connections for any signs of wear or damage. Ensure the unit is securely mounted.
- Environmental Protection: While designed for outdoor use, extreme weather conditions can affect performance. Ensure the unit is not directly exposed to prolonged heavy rain or snow.
8. Troubleshooting
If you encounter issues with your DRC-40K door camera, refer to the following common problems and solutions:
- No Image on Monitor:
- Check the 4-wire connection between the door camera and the monitor for proper polarity and secure connection.
- Ensure the indoor monitor is powered on.
- No Sound (or poor sound quality):
- Verify all wiring connections are secure.
- Check for obstructions over the speaker or microphone.
- Door Release Not Working:
- Confirm the 2-wire connection to the door release mechanism is correct and secure.
- Ensure the door release mechanism itself is functional.
- Call Button Not Responding:
- Check the 4-wire connection to the monitor.
- Ensure the button is not physically stuck.
If problems persist, contact Commax customer support or a qualified technician.
9. Specifications
Detailed technical specifications for the Commax DRC-40K Door Camera:
Figure 2: Technical specifications table for the Commax DRC-40K Door Camera.
| Specification | Detail |
|---|---|
| Model No. | DRC-40K |
| Rated Voltage / Power Consumption | DC 12V (Supplied from monitor) |
| Wiring (Main Unit / Door Release) | 4 wires to a monitor (polarity) 2 wires to the door release (non-polarity) |
| Sensor Type | CMOS IMAGE SENSOR |
| Video Transmission Standard | NTSC or PAL STANDARD |
| Communication | Simultaneous communication |
| Minimum Illumination | 0.1 Lux (within 300mm) |
| LED | Embedded night LED (activated at night) |
| Effective Viewing Angle | Horizontal 75°, Vertical 55° |
| Angle Adjustment | Up, down 12 Degrees |
| Operating Temperature | -10 ℃ ~ +40 ℃ |
| Weight (g) | 400g |
| Dimension (mm) | 96(W) x 155(H) x 32.5(D) |
| Distance between a door camera and monitor | Diameter (meter): 0.5, 0.65, 0.8 Diameter (meter): 28m, 50m, 70m |
10. Warranty Information
Warranty information for the Commax DRC-40K Door Camera is typically provided with the product packaging or can be found on the official Commax website. Please retain your proof of purchase for warranty claims. Specific warranty terms and conditions may vary by region.
11. Support Information
For technical support, service, or further inquiries regarding your Commax DRC-40K Door Camera, please visit the official Commax website or contact their customer service department. Contact details can usually be found on the manufacturer's website or in the product packaging.
