1. Introducción
The ELRO DV477W Video Intercom System provides a secure and convenient way to identify and communicate with visitors at your door before granting access. This system features a robust outdoor unit with a camera and a 7-inch color indoor monitor, enabling two-way communication and visual verification. The outdoor unit includes night vision capabilities for clear images in low-light conditions and a rain cover for enhanced durability. This manual provides detailed instructions for installation, operation, and maintenance of your ELRO DV477W system.

Image 1.1: The ELRO DV477W Video Intercom System, showing the outdoor camera unit and the indoor 7-inch monitor.
2. Producto terminadoview y características
The ELRO DV477W system is designed for ease of use and reliable performance. Key features include:
- Comunicación bidireccional: Speak directly with visitors via the indoor monitor.
- 7-Inch Color Monitor: A large display for clear viewafluencia de visitantes.
- Tecnología de visión nocturna: Integrated white LED lights on the camera provide clear images even in complete darkness.
- Adjustable Camera Position: The outdoor camera lens can be manually adjusted for optimal viewángulo de ing.
- Unidad exterior resistente a la intemperie: Equipped with a rain cover to protect against elements.
- 16 Selectable Ringtones: Personalize your doorbell sound.
- Conexión de 4 cables: Reliable wired connection between outdoor and indoor units.
2.1 Outdoor Unit Components

Image 2.1: Diagram illustrating the components of the outdoor unit, including the microphone, camera, night view LEDs, speaker, bell push button, and nameplate.
- Micrófono: Captura audio de los visitantes.
- Cámara: Captures video of visitors, with an adjustable lens.
- Noche View LED: Provide illumination for clear night vision.
- Vocero: Outputs audio to visitors.
- Bell Push Button: Activates the indoor monitor and chime.
- Letrero: Customizable area for displaying names or apartment numbers.
2.2 Indoor Monitor Components and Controls

Image 2.2: Diagram showing the indoor monitor with its primary function buttons: Talk, Gate Unlock, Door Unlock, and Live View.
- Botón de hablar: Initiates two-way audio communication.
- Gate Unlock Button: Activates an electric gate lock (if connected).
- Botón de desbloqueo de puerta: Activates an electric door lock (if connected).
- Vivir View Botón: Displays live video from the outdoor camera without a visitor pressing the bell.
- Micrófono: For speaking with visitors.

Imagen 2.3: Lateral view of the indoor monitor, highlighting the adjustment controls for sound volume, ringtone selection, brightness, color intensity, and talk volume.
- Control de volumen de sonido: Ajusta el volumen del tono de llamada.
- Select Sound Control: Cycles through the 16 available ringtones.
- Control de brillo: Ajusta el brillo de la pantalla.
- Color Intensity Control: Ajusta la saturación del color de la pantalla.
- Talk Volume Control: Adjusts the volume of the two-way communication.
3. Instalación y configuración
Proper installation is crucial for the optimal performance of your ELRO DV477W system. It is recommended to consult a qualified electrician if you are unsure about any steps.
3.1 Montaje de la unidad exterior
- Elegir la ubicación: Seleccione una ubicación adecuada cerca de su puerta, asegurándose de que la cámara tenga una vista clara. view of visitors. The recommended mounting height is between 1.35m and 1.7m from the ground.
- Instale la cubierta para la lluvia: Mount the rain cover first, ensuring it is level and securely fastened to the wall. This protects the outdoor unit from direct rain.
- Unidad exterior segura: Attach the outdoor unit securely within the rain cover.
- Ajustar el ángulo de la cámara: Ajuste manualmente la lente de la cámara para lograr el resultado deseado. viewángulo de ing.
- Customize Nameplate: Insert your name or apartment number into the illuminated nameplate slot.

Imagen 3.1: Detallada view of the outdoor unit, showing its dimensions (200mm height, 112mm width, 51mm depth) and the adjustable 55-degree lens mechanism.
3.2 Montaje del monitor interior
- Elegir la ubicación: Select a convenient indoor location, typically near an electrical outlet.
- Instale el soporte de montaje: Secure the monitor's mounting bracket to the wall. Ensure there is sufficient space behind the monitor for wiring connections.
- Conectar el cableado: Connect the 4-wire cable from the outdoor unit to the designated terminals on the indoor monitor. Ensure correct polarity.
- Conecte la electricidad: Plug the provided power adapter into the monitor and then into a wall outlet.
- Monitor seguro: Monte el monitor interior en su soporte.

Image 3.2: The ELRO DV477W Video Intercom System, showing the outdoor camera unit and the indoor 7-inch monitor, ready for installation.
3.3 Wiring Connections (4-Wire Technology)
The system uses a 4-wire connection between the outdoor unit and the indoor monitor. A 15-meter cable is typically included. Ensure all connections are secure and correctly wired according to the product's wiring diagram (refer to the full manual for detailed diagrams). The indoor monitor also provides connections for electric door and gate locks:
- Conexión de la cerradura de la puerta: This connection is typically powered by the indoor monitor.
- Gate Lock Connection: This is a potential-free contact, meaning it can be connected to an external power supply for the gate lock.
4. Operación
Operating your ELRO DV477W Video Intercom System is straightforward.
4.1 Recibir una llamada
- When a visitor presses the bell push button on the outdoor unit, the indoor monitor will display the camera feed and play the selected ringtone.
- Presione el Hablar button on the monitor to begin two-way communication with the visitor.
- Para finalizar la conversación, presione el Hablar button again or the system will automatically hang up after a set period.
4.2 Unlocking Doors/Gates
- Durante una llamada o mientras viewing the live feed, press the Desbloqueo de puerta button to activate the connected electric door lock.
- Presione el Desbloqueo de puerta button to activate the connected electric gate lock.
4.3 en vivo View
- A view the outdoor camera feed at any time without a visitor, press the Vivir View button on the indoor monitor.
4.4 Ajuste de la configuración
Use the side controls on the indoor monitor (refer to Image 2.3) to customize your system:
- Volumen de sonido: Slide the control to increase or decrease the ringtone volume. Note that the loudest setting may cause distortion.
- Seleccionar sonido: Press this button to cycle through the 16 available ringtones until you find your preferred melody.
- Brillo: Adjusts the overall brightness of the monitor display.
- Color Intensity: Adjusts the vibrancy of the colors on the monitor display.
- Volumen de la conversación: Adjusts the volume of the audio during two-way communication.
5. Mantenimiento
El mantenimiento regular garantiza la longevidad y el rendimiento óptimo de su sistema de videoportero.
- Limpieza: Utilice un paño suave y seco.amp cloth to clean the outdoor unit and indoor monitor. Avoid abrasive cleaners or solvents that could damage the surfaces.
- Inspección de la unidad exterior: Periodically check the outdoor unit for any signs of wear, damage, or obstruction to the camera lens or microphone. Ensure the rain cover is securely in place and free of debris.
- Comprobación del cableado: Occasionally inspect visible wiring for any signs of damage or loose connections.
- Protección ambiental: While the outdoor unit is weatherproof, extreme weather conditions can still affect performance. Ensure proper sealing during installation to prevent water ingress, especially in areas prone to heavy rain.
6. Solución de problemas
If you encounter issues with your ELRO DV477W system, refer to the following common problems and solutions:
| Problema | Posible causa | Solución |
|---|---|---|
| No hay imagen en el monitor interior | Loose wiring connection; Power issue; Damaged camera. | Check all 4-wire connections between outdoor unit and monitor. Ensure monitor is powered. If problem persists, contact support. |
| Sin sonido o sonido distorsionado | Volume too low; Loose wiring; Microphone/speaker fault. | Adjust 'Sound Volume' and 'Talk Volume' controls. Check wiring. If ringtone is distorted at highest volume, reduce it slightly. |
| Door/Gate unlock not working | Incorrect wiring to lock; Lock mechanism fault; Power supply issue for gate lock. | Verify wiring to electric locks. Ensure external power supply for gate lock is functional. Consult a professional if necessary. |
| Mala visión nocturna | Obstructed LEDs; Dirty camera lens. | Clean the camera lens and ensure night view LEDs are not obstructed. |
| El monitor no se enciende | Sin energía; adaptador de corriente defectuoso. | Check power outlet and power adapter connection. Test outlet with another device. |
If you are unable to resolve an issue using the troubleshooting guide, please contact ELRO customer support.
7. Especificaciones
Detailed technical specifications for the ELRO DV477W Video Intercom System:
| Especificación | Detalle |
|---|---|
| Marca | ELRO |
| Número de modelo | DV477W |
| Serie | Videoportero intercomunicador |
| Color | Gris |
| Dimensiones del producto (L x An x Al) | 9.3 x 4 x 20.5 cm (Unidad exterior) |
| Peso del artículo | 2.08 kilogramos |
| Tamaño del monitor | 7 pulgadas (18 cm) |
| Tecnología de conectividad | 4 cables |
| Visión nocturna | Yes, with white LEDs |
| Tonos de llamada | 16 different melodies |
| Fabricante | ELRO EUROPE |
8. Garantía y soporte
For warranty information and customer support, please refer to the documentation included with your product or visit the official ELRO website. ELRO is a trusted European brand with over 40 years of experience in security products.
If you require assistance with installation, troubleshooting, or have questions about your ELRO DV477W Video Intercom System, please contact ELRO customer service directly. Contact details can typically be found on the ELRO websitio o en el embalaje del producto.





