Video intercom KNZD-37W

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Overview
Intercom with Camera KNZD-37W. The door intercom is specially installed outside the door and integrates a high-definition camera and push-to-talk feature. It enables full-duplex two-way voice communication while allowing users to observe visitors through the integrated camera. The unit is constructed in stainless steel, available for embedded or wall-mounted installation. Model: KNZD-37W. Size: 220X150X60mm. Material: SUS304.

Features

• Main body with whole stainless steel body, solid and temperature bearable.
• Handset free, loudspeaker (hands-free operation).
• Built-in lightning protection automatically to ITU-T K21 standard.
• Waterproof grade IP65 (can be upgraded to IP67).
• Metal shell provided with grounding connection device; inner circuit insulated to provide electromagnetic shielding.
• Support hotline call; can realize automatic ring off if the other side closes.
• Adopts SMT craftwork for high quality.
• Slim and smart design; embed style and hanging style available.
• Call time limit option (e.g., 5 minutes), auto ring off if time exceeded (optional).
• Telephone has passed ISO9000 (2000) certification.

Applications
Suitable as a public telephone for indoor or outdoor use, elevator phone, taxi or bus stands/stations, highway call box, railway and metro, ATM machine side, tunnel, port, dock, mines, generation facilities. Ideal for use in wet or corrosive atmospheres and for flats, villas and multi-tenant buildings.

System
The door intercom with camera is mainly used for control access of important areas of a system. It is installed outside the door and can verify the identity of visitors via the camera. The intercom can be connected with doorbells and intercom systems; supports PoE power supply and networked IP intercom operation. Tenants can answer calls via mobile devices or VoIP phones and can remotely unlock doors with compatible locks and accessories.

Specification (extracted table)
Model: KNZD-37W
Pickup device: 1/3 OV7949 CMOS
SYS: PAL/NTSC
Effective Pixels: 268(H) x586(V) x / 510(H) x 496(V)
Sensing Area: 5.961mm x 4.276mm
Scanning System: 2:1 Interlaced Scanning
Sync System: Internal Synchronization
Sharpness: 420TV lines
Horizontal Sync Frequency: 15.625KHz / 15.734KHz
Vertical Sync Frequency: 50Hz / 60Hz
Minimum Illumination: 0Lux/F2.0 with IR
Video Output: 1.0vp-p, 75Ω
Gamma Coefficient: 0.45
AGC: Auto
Sound / Noise Ratio: >48dB
White Balance: Auto
Electronic Shutter: 1/50-1/80000(s) / 1/60-1/80000(s)
Backlight Compensation: Auto
Current: 80mA ±10%
Voltage: DC 12V ±10%
Operating Temperature: -20°C ~ 50°C, RH 95% MAX
Storage Temperature: -30°C ~ 60°C, RH 95% MAX
Lens: 3.6mm F = 2.0
Camera Angle: 90°
Weight: 25 g

Additional Notes
Matching with most PABX, PBX and PAX systems. Supports memory dialing for up to 12 groups of numbers (maximum length of each number is 16 digits). Sound level of ringing: over 70dB(A). Ambient operating conditions: -30 ~ +60°C listed in main technical indexes; relative humidity 10%~95%; atmospheric pressure 86~106Kpa; recommended for environments with noise less than 60dB(A).

Characteristics / Technical specifications

• Model: KNZD-37W
• Dimensions: 220 x 150 x 60 mm
• Material: SUS304 stainless steel
• Camera: 1/3 OV7949 CMOS, 3.6mm F=2.0 lens, 90° angle
• Video system: PAL/NTSC; video output 1.0vp-p, 75Ω
• Resolution / Sharpness: 420 TV lines; effective pixels as specified above
• Min. illumination: 0 Lux with IR (F2.0)
• Power: DC 12V ±10%; current ~80mA ±10%; PoE supported (network operation)
• Ingress protection: IP65 (upgradeable to IP67)
• Operating temperature: -20°C to 50°C; storage: -30°C to 60°C
• Environmental tolerance: RH up to 95%, atmospheric pressure 86–106 kPa
• Construction: Grounding connection for metal shell and inner circuit insulation for EMI protection
• Certifications: ISO9000 (2000) indicated