1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the FERMAX Duox Plus Direct City Video Panel, model 73631. Please read this manual thoroughly before attempting to install or operate the device to ensure proper functionality and safety.
The FERMAX Duox Plus Direct City Video Panel 73631 is an outdoor security device designed for video intercom and access control systems. It features a robust construction suitable for outdoor environments and integrates with Duox Plus systems.
2. Safety Information
Always adhere to the following safety guidelines during installation, operation, and maintenance:
- Installation should only be performed by qualified personnel in accordance with local electrical codes and regulations.
- Disconnect power to the installation area before beginning any wiring or maintenance work.
- Do not expose the panel to excessive moisture or extreme temperatures beyond its specified operating range.
- Use only original FERMAX replacement parts and accessories.
- Ensure all connections are secure and properly insulated to prevent short circuits or electrical hazards.
3. Package Contents
Verify that all components are present in the package:
- FERMAX Duox Plus Direct City Video Panel 73631 (1 unit)
- Mounting screws and anchors
- Installation template
- Quick Start Guide (refer to this manual for full details)
If any items are missing or damaged, please contact your supplier immediately.
4. Product Overview
The FERMAX Duox Plus Direct City Video Panel 73631 is constructed from Aluminium and Stainless Steel, designed for outdoor use. It features a video camera, speaker, microphone, and a numeric keypad for access control.

Figure 4.1: Front view of the FERMAX Duox Plus Direct City Video Panel 73631. This image displays the panel's brushed metal finish, integrated camera with illumination, speaker grille, microphone, and illuminated numeric keypad.
Key Features:
- Material: Aluminium, Stainless Steel
- Indoor/Outdoor Usage: Outdoor
- Connectivity Technology: Wired (Duox Plus system)
- Video Capture Format: MPEG-4
- Access Control: Integrated numeric keypad
5. Installation and Setup
5.1 Mounting
The FERMAX Duox Plus Direct City Video Panel 73631 is designed for Wall Mount installation.
- Choose a suitable outdoor location, ensuring clear visibility for the camera and accessibility for users.
- Use the provided installation template to mark drilling points on the wall.
- Drill holes and insert anchors as required.
- Secure the mounting bracket (if applicable, or the panel directly) to the wall using the provided screws.
- Ensure the panel is level and securely fastened.
5.2 Wiring and Connectivity
This panel utilizes Wired Connectivity as part of the FERMAX Duox Plus system. It also supports Wi-Fi Connectivity for certain functions (e.g., remote access, configuration).
- Refer to the Duox Plus system wiring diagram for specific connections to the central unit and power supply.
- Connect the main Duox Plus bus wires to the designated terminals on the panel.
- If using Wi-Fi features, ensure the panel is within range of a stable Wi-Fi network.
- Power on the Duox Plus system after all connections are complete and verified.
5.3 Initial Configuration
Upon initial power-up, the panel may require configuration through the Duox Plus system's programming interface or a dedicated FERMAX configuration tool. Consult the main Duox Plus system manual for detailed programming steps.
6. Operation
6.1 Making a Call
To initiate a call to an indoor monitor:
- Enter the apartment or unit number using the numeric keypad.
- Press the 'Call' button (often represented by a bell icon or similar).
- The indoor monitor will ring, and a video/audio connection will be established upon answer.
6.2 Access Control (Keypad)
If configured, users can gain access by entering a pre-programmed access code:
- Enter the valid access code using the numeric keypad.
- The system will verify the code, and if correct, the door lock connected to the Duox Plus system will activate for a short period.
6.3 Video and Audio Communication
During a call, the integrated camera captures video (MPEG-4 format) and the microphone captures audio, which are transmitted to the indoor monitor. The speaker on the panel allows for two-way audio communication with the indoor resident.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your video panel.
- Cleaning: Gently wipe the panel surface with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or electronic components.
- Inspection: Periodically check for any signs of physical damage, loose connections, or obstructions to the camera or speaker.
- Software Updates: Ensure the Duox Plus system firmware and panel software are kept up-to-date. Refer to FERMAX technical support or your installer for update procedures.
8. Troubleshooting
If you encounter issues with your FERMAX Duox Plus Direct City Video Panel, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No video or audio during a call. | Loose wiring, power issue, system fault. | Check all wiring connections. Verify power supply to the panel and Duox Plus system. Consult the Duox Plus system manual for diagnostics. |
| Keypad not responding. | Keypad malfunction, system not powered. | Ensure the panel is receiving power. If the issue persists, contact technical support. |
| Door does not open after entering code. | Incorrect code, lock malfunction, wiring issue. | Verify the access code. Check the wiring to the door lock. Ensure the lock mechanism is functional. |
| Poor video quality. | Dirty camera lens, poor lighting, network interference (if Wi-Fi related). | Clean the camera lens. Ensure adequate lighting. Check Wi-Fi signal strength if applicable. |
For problems not listed here or if solutions do not resolve the issue, please contact FERMAX technical support or your authorized installer.
9. Specifications
| Feature | Detail |
|---|---|
| Model | 73631 |
| Brand | FERMAX |
| Mounting Type | Wall Mount |
| Indoor/Outdoor Usage | Outdoor |
| Material | Aluminium, Stainless Steel |
| Connectivity Technology | Wired (Duox Plus) |
| Wireless Communication Technology | Wi-Fi |
| Video Capture Format | MPEG-4 |
| Recommended Uses | Outdoor Security |
| Package Dimensions | 10.51 x 7.87 x 2.72 inches |
| Date First Available | June 26, 2023 |
10. Warranty and Support
FERMAX products are covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official FERMAX website. Keep your proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or to inquire about service, please contact FERMAX customer support or your authorized FERMAX installer. Contact information can typically be found on the FERMAX website or in your product documentation.
Online Resources: www.fermax.com





