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VTO6521F-S2 – 2MP PoE IP door station Dahua:
- 4.3" LCD display: 800 × 480 resolution for interaction and information display.
- 2MP camera: 1/2.8" CMOS sensor with 120 dB WDR and wide field of view.
- Access control: authentication by IC card, password or remote unlocking, with capacity for 20,000 cards.
- PoE: powered by standard PoE or 12 VDC.
- Integration: ONVIF, CGI, RS485, Wiegand, alarm inputs and outputs, and lock control.
- Outdoor protection: aluminium alloy housing with IP65 protection and IK07 resistance.
VTO6521F-S2 – 2MP PoE IP Door Station Dahua
The VTO6521F-S2 is a Dahua IP door station from the Lite Series, designed for professional video intercom and access control systems in residential buildings, apartment complexes and professional installations. It integrates a 4.3" LCD display with 800 × 480 resolution and a 2MP CMOS camera with 120 dB WDR.
Communication is fully digital and the door station supports network protocols including ONVIF, RTSP, SIP, HTTP/HTTPS and FTP. The 10/100 Mbps Ethernet connection and standard PoE power supply allow flexible integration into professional IP infrastructures.
Access Control with Capacity for 20,000 Cards
The VTO6521F-S2 supports authentication by IC card, password or remote unlocking. Its capacity of up to 20,000 cards makes it especially suitable for buildings with a large number of users. It also supports local card enrolment and user, public and duress passwords.
2MP Camera and Two-Way Audio
The 2MP camera features 120 dB WDR, 3D noise reduction and H.264/H.265 video compression. The system supports two-way audio through the built-in speaker, with echo suppression and digital noise reduction to improve communication between visitors and users.
ONVIF, Wiegand and RS485 Integration
For professional system integration, the door station supports ONVIF, CGI, RS485 and Wiegand, as well as two alarm inputs, two alarm outputs, an exit button, door status detection and lock control.
IP65 and IK07 Protection for Outdoor Use
Built with an aluminium alloy housing, the VTO6521F-S2 provides IP65 protection and IK07 resistance. It supports surface or flush mounting and operates at temperatures from -30 °C to +60 °C, making it suitable for outdoor use when installed according to Dahua recommendations.
The Dahua VTO6521F-S2 combines IP video intercom, access control, PoE and security-system integration in a solution suitable for apartment complexes, residential buildings and professional installations.
| Parameter | Detailed Technical Specifications |
|---|---|
| Brand | Dahua |
| Model | VTO6521F-S2 |
| Product type | IP apartment/building door station |
| Main processor | Embedded processor |
| Operating system | Embedded Linux |
| Button type | Mechanical |
| Interoperability | ONVIF; CGI |
| Network protocols | RTSP; DNS; FTP; RTP; RTMP; SIP; SSH; HTTP/HTTPS; ONVIF |
| Screen type | Non-touch |
| Display | 4.3" LCD |
| Display resolution | 800 (H) × 480 (V) |
| Camera | 1/2.8" 2MP CMOS, high definition and low illumination |
| Field of view | H: 95°; V: 50°; D: 110° |
| WDR | 120 dB |
| Noise reduction | 3D NR |
| Video compression | H.264; H.265 |
| Video resolution | Main stream: 720P, D1, WVGA; Sub stream: 1080P, 720P, D1, WVGA, CIF, QVGA |
| Frame rate | 25 fps |
| Video bit rate | 1,024 kbps–8,192 kbps |
| Light compensation | Automatic white light |
| Audio compression | G.711a; G.711u; PCM |
| Audio input | 1 channel |
| Audio output | Built-in speaker |
| Audio mode | Two-way audio |
| Audio enhancement | Echo suppression / digital noise reduction |
| Audio specification | 16 kHz; 16 bit |
| Communication mode | Fully digital |
| Verification methods | Card; password; remote |
| Auto snapshot | Yes |
| Information publishing | Receives and displays text messages sent by the management center |
| Video message recording | Yes; requires an SD card inserted in the VTH |
| Web configuration | Yes |
| Auto registration | Yes |
| Card type | IC card |
| Card reading distance | 0–5 cm |
| Local card enrolment | Yes |
| Housing material | Aluminium alloy |
| Card capacity | 20,000 |
| RS485 | 1 |
| Wiegand | 1; configurable as input or output |
| Alarm inputs | 2 channels |
| Alarm outputs | 2 channels |
| Power output | 1 port, 12 V / 500 mA |
| Exit button | 1 channel |
| Door status detection | 1 channel |
| Lock control | 1 channel, normally open |
| Network port | 1 × Ethernet 10/100 Mbps |
| Tamper alarm | Yes |
| Unlock password modes | User, public and duress password |
| Color | Silver |
| Power supply | 12 VDC / 2 A; standard PoE |
| Power adapter | Optional |
| Installation | Wall mount or flush mount |
| Certification | CE |
| Accessories | Optional power supply; optional flush-mount box |
| Dimensions | 389 × 145 × 44.1 mm |
| Protection | IP65; IK07 |
| IP65 note | Silicone sealant is required according to the Dahua installation guide |
| Operating temperature | -30 °C to +60 °C |
| Operating humidity | 0%–90% RH, non-condensing |
| Operating altitude | 0–3000 m |
| Power consumption | ≤5 W standby; ≤18 W operation |
| Gross weight | 1.69 kg |