DBM-21VF - Security Camera CNB Technology - Free user manual and instructions
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| Brand | CNB Technology |
| Model | DBM-21VF |
| Type | Security Camera |
| Image Sensor | 1/3" CMOS |
| Resolution | 960H (700 TVL) |
| Lens | Varifocal 2.8-12mm |
| Day/Night | Yes (ICR) |
| Minimum Illumination | 0.01 Lux / 0 Lux with IR |
| IR Distance | Up to 30m |
| Video Output | 1Vp-p Composite (75 Ohm) |
| Power Supply | DC12V |
| Power Consumption | Max 6W |
| Dimensions (L x W x H) | 130 x 70 x 70 mm |
| Weight | 400g |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C to 60°C |
| Mounting | Ceiling / Wall mount |
| Protection | Surge protection |
| Warranty | 2 years |
| Cleaning | Wipe with dry cloth, avoid solvents |
Frequently Asked Questions - DBM-21VF CNB Technology
How do I install the DBM-21VF camera?
Mount the camera securely using the provided bracket, connect the BNC video cable and DC12V power adapter, then adjust the varifocal lens and focus for desired view.
What is the maximum IR distance?
The IR distance is up to 30 meters in complete darkness.
Does the camera support day/night switching?
Yes, it has an ICR (Infrared Cut Filter) that automatically switches between day and night modes.
What type of lens is on the DBM-21VF?
It features a varifocal lens with a focal length range of 2.8 to 12mm, allowing manual zoom and focus adjustment.
What is the resolution of this camera?
The camera outputs 960H analog video, equivalent to approximately 700 TV lines.
Can I use this camera outdoors?
The DBM-21VF is designed for indoor use. For outdoor installation, you should place it under a protective cover or choose an outdoor-rated model.
How do I clean the camera lens?
Use a soft, dry cloth to gently wipe the lens. Do not use any solvents or abrasive cleaners.
What power supply is required?
The camera requires a DC12V power source. The power adapter must be capable of supplying at least 500mA (6W).
Why is there no video signal?
Check the BNC connection and ensure the camera is powered. Also verify that the DVR or monitor is set to the correct channel and input type.
Is the camera compatible with my existing DVR?
Yes, it outputs standard composite video (1Vp-p, 75 Ohm) and works with any analog DVR that supports NTSC or PAL formats.
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