1. Introduzione
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. Precauzioni di sicurezza
- Prima dell'installazione o della manutenzione, assicurarsi che l'alimentazione sia scollegata per evitare scosse elettriche.
- 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.
- Non smontare o modificare l'unità. Per qualsiasi intervento di manutenzione, rivolgersi a personale qualificato.
- Tenere l'unità lontana dall'acqua e da altri liquidi.
3. Contenuto della confezione
Verificare che tutti gli articoli siano presenti nel pacco:
- Commax DRC-40K Door Camera Unit
- Viti e ancoraggi di montaggio
- Manuale di istruzioni (questo documento)
4. Prodotto finitoview
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.

Figura 1: Fronte 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.
Componenti chiave:
- Obiettivo della fotocamera: Captures video feed of the visitor.
- Altoparlante/microfono: Consente la comunicazione audio bidirezionale.
- Pulsante di chiamata: Pressed by visitors to initiate a call to the indoor monitor.
- Embedded Night LED: Automatically activates in low light for clear night vision.
5. Installazione e configurazione
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 Montaggio dell'unità
- Scegli una posizione adatta vicino all'ingresso, solitamente all'altezza degli occhi.
- Mark the drilling points for the mounting screws using the unit as a template.
- Se necessario, praticare dei fori e inserire i tasselli a muro.
- Secure the mounting bracket (if separate) or the unit directly to the wall using the provided screws.
5.2 Collegamenti di cablaggio
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.
Importante: Ensure all connections are secure and insulated to prevent short circuits. Refer to your indoor monitor's manual for specific wiring diagrams.
6. Funzionamento
Once installed and powered, the Commax DRC-40K operates in conjunction with your indoor videophone monitor.
- Avvio di una chiamata: 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.
- Comunicazione bidirezionale: From the indoor monitor, you can answer the call to establish two-way audio and video communication with the visitor.
- Apertura porta: If connected to a door release mechanism, you can unlock the door remotely from the indoor monitor during a call.
- Visione notturna: The embedded night LED automatically activates in low-light conditions, providing clear images of visitors even in the dark.
7. Manutenzione
Regular maintenance ensures optimal performance and longevity of your door camera.
- Pulizia: Gently wipe the camera lens and the unit's surface with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture.
- Ispezione: Periodically check the wiring connections for any signs of wear or damage. Ensure the unit is securely mounted.
- Protezione ambientale: 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. Risoluzione Dei Problemi
If you encounter issues with your DRC-40K door camera, refer to the following common problems and solutions:
- Nessuna immagine sul 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):
- Verificare che tutti i collegamenti elettrici siano saldi.
- Check for obstructions over the speaker or microphone.
- Apertura porta non funzionante:
- Confirm the 2-wire connection to the door release mechanism is correct and secure.
- Ensure the door release mechanism itself is functional.
- Il pulsante di chiamata non risponde:
- Check the 4-wire connection to the monitor.
- Assicurarsi che il pulsante non sia fisicamente bloccato.
If problems persist, contact Commax customer support or a qualified technician.
9. Specifiche
Detailed technical specifications for the Commax DRC-40K Door Camera:

Figure 2: Technical specifications table for the Commax DRC-40K Door Camera.
| Specificazione | Dettaglio |
|---|---|
| Modello n. | DRC-40K |
| Volume nominaletage / Consumo energetico | DC 12V (Supplied from monitor) |
| Wiring (Main Unit / Door Release) | 4 wires to a monitor (polarity) 2 wires to the door release (non-polarity) |
| Tipo di sensore | SENSORE DI IMMAGINE CMOS |
| Standard trasmissione video | NTSC or PAL STANDARD |
| Comunicazione | Comunicazione simultanea |
| Illuminazione minima | 0.1 Lux (within 300mm) |
| GUIDATO | Embedded night LED (activated at night) |
| Efficace Viewangolo di ing | Orizzontale 75°, Verticale 55° |
| Regolazione dell'angolo | Up, down 12 Degrees |
| Temperatura di esercizio | -10 ℃ ~ + 40 ℃ |
| Peso (g) | 400g |
| Dimensioni (mm) | 96 (larghezza) x 155 (altezza) x 32.5 (profondità) |
| Distanza tra una telecamera della porta e il monitor | Diameter (meter): 0.5, 0.65, 0.8 Diameter (meter): 28m, 50m, 70m |
10. Informazioni sulla garanzia
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. Informazioni di supporto
For technical support, service, or further inquiries regarding your Commax DRC-40K Door Camera, please visit the official Commax websito o contattare il servizio clienti. I dettagli di contatto sono solitamente reperibili sul sito web del produttore. websito o nella confezione del prodotto.





