Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your FERMAX Duox Plus Digital City Video Panel Prox. Please read this manual carefully before using the device to ensure proper functionality and safety.

Figure 1: FERMAX Duox Plus Digital City Video Panel Prox
The image displays the front of the FERMAX Duox Plus Digital City Video Panel Prox. It features a top-mounted camera and speaker, a central color display screen, a numeric keypad with additional 'A' and 'B' buttons, and a lower section dedicated to proximity access control, indicated by an icon of a hand swiping a card.
The FERMAX Duox Plus Digital City Video Panel Prox is an advanced outdoor video entry panel designed for multi-apartment buildings and residential complexes. It integrates video intercom, digital keypad for code entry, and proximity access control for enhanced security and convenience.
Setup and Installation
Proper installation is crucial for the optimal performance of the Duox Plus panel. It is recommended that installation be performed by a qualified technician.
1. Mounting the Panel
- Ensure the mounting surface is flat and secure. The panel is designed for wall mounting.
- Use the provided mounting template to mark drilling points.
- Drill holes and insert wall anchors if necessary.
- Secure the mounting frame to the wall using appropriate screws.
- Carefully attach the panel to the mounting frame, ensuring all connections are accessible.
2. Wiring Connections
The Duox Plus system uses a 2-wire non-polarized digital bus. Refer to the system wiring diagram for specific connections to the power supply, indoor monitors, and other system components.
- Power Supply: Connect the Duox Plus power supply to the designated terminals. Ensure correct voltage and polarity.
- Bus Line: Connect the 2-wire Duox bus line to the panel's bus terminals. This line carries both power and data.
- Door Release: Connect the electric strike or door lock mechanism to the panel's relay outputs.
- Auxiliary Inputs/Outputs: Connect any additional devices such as exit buttons or external sensors as per system requirements.
3. Initial Configuration
After physical installation and wiring, the panel requires initial configuration. This typically involves setting up apartment numbers, access codes, and proximity card registration.
- Access the panel's programming menu using the master code.
- Follow the on-screen prompts to assign apartment numbers to specific indoor units.
- Register proximity cards or key fobs by presenting them to the proximity reader when prompted.
- Set up individual access codes for residents as needed.
Operating Instructions
1. Making a Call
- Enter the apartment number using the numeric keypad.
- Press the Call button (often indicated by a bell or phone icon).
- The panel will establish a video and audio connection with the indoor monitor.
- Wait for the resident to answer.
2. Using the Keypad for Access
- Enter your personal access code using the numeric keypad.
- Press the Enter or # button (if applicable).
- If the code is correct, the door will unlock for a set period.
3. Proximity Access Control
- Present your registered proximity card or key fob to the designated proximity reader area on the panel.
- A confirmation sound or visual indicator will confirm successful reading.
- If the card is valid, the door will unlock.
4. Display Screen Information
The integrated display screen provides various information:
- Welcome Message: Displays a customizable welcome message when idle.
- Call Status: Shows the status of a call (e.g., "Calling...", "Connected", "Busy").
- Instructions: Provides prompts for entering apartment numbers or access codes.
- Error Messages: Displays error codes or messages if an issue occurs.
Maintenance
Regular maintenance ensures the longevity and reliable operation of your FERMAX Duox Plus panel.
1. Cleaning
- Use a soft, damp cloth to clean the panel's surface.
- Avoid abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or electronic components.
- For the camera lens and display screen, use a microfiber cloth specifically designed for optics.
- Ensure no liquid enters the speaker grille or keypad gaps.
2. Firmware Updates
Periodically check the FERMAX official website or consult your installer for available firmware updates. Updates can improve performance, add new features, or address security vulnerabilities.
3. System Checks
- Regularly test the call function to indoor units.
- Verify that access codes and proximity cards are functioning correctly.
- Inspect the panel for any signs of physical damage or tampering.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No video or audio during call. | Loose wiring, power issue, indoor unit problem, bus line fault. | Check all wiring connections. Verify power supply to the system. Ensure indoor unit is powered on. Consult installer for bus line diagnostics. |
| Keypad access code not working. | Incorrect code entered, code not programmed, keypad malfunction. | Double-check the access code. Verify the code is correctly programmed in the panel's memory. If issue persists, contact support. |
| Proximity card not recognized. | Card not registered, damaged card, reader malfunction. | Ensure the card is properly registered. Try another registered card. If multiple cards fail, the reader may need service. |
| Door does not unlock. | Door strike issue, relay fault, wiring problem. | Check the door strike mechanism. Verify relay operation. Inspect wiring to the door lock. |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact FERMAX technical support or your authorized installer.
Specifications
| Feature | Detail |
|---|---|
| Brand | FERMAX |
| Model | Duox Plus Digital City Video Panel Prox |
| Connectivity Technology | Wired |
| Connectivity Protocol | Wi-Fi (for certain features/integration, primarily wired bus) |
| Wireless Communication Technology | Wi-Fi |
| Mounting Type | Wall Mount |
| Video Capture Format | MPEG-4 |
| Package Dimensions | 17.91 x 7.87 x 2.72 inches |
| Unit Count | 1.0 Count |
| ASIN | B0C9DXSYSD |
Warranty and Support
Warranty Information
FERMAX products typically come with a manufacturer's warranty covering defects in materials and workmanship. The specific warranty period and terms may vary by region and product. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation included with your product or visit the official FERMAX website.
Technical Support
For technical assistance, installation queries, or troubleshooting beyond the scope of this manual, please contact FERMAX technical support. You can find contact details on the official FERMAX website or through your authorized distributor.
Online Resources: www.fermax.com





