Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the FERMAX City Panel Duox Plus S1 AP101 outdoor security panel. Please read this manual thoroughly before installation and use to ensure proper functionality and safety. Retain this manual for future reference.
Safety Information
WARNING:
- Installation must be performed by qualified personnel in accordance with local electrical codes and regulations.
- Disconnect power before performing any installation, maintenance, or troubleshooting procedures.
- Do not expose the unit to extreme temperatures, humidity, or direct water spray beyond its intended outdoor rating.
- Use only original FERMAX components and accessories.
- Ensure all connections are secure and properly insulated to prevent electrical hazards.
Product Overview
The FERMAX City Panel Duox Plus S1 AP101 is an outdoor security panel designed for door entry systems. It features robust construction and integrates with Duox Plus communication technology for reliable performance.

Image: Front view of the FERMAX City Panel Duox Plus S1 AP101. The panel is silver-colored, made of aluminum, with a central speaker grille, a nameplate area, and a call button at the bottom.
Key components include:
- Speaker/Microphone: For two-way audio communication.
- Call Button: To initiate a call to the indoor unit.
- Nameplate: For identification (e.g., apartment number or resident name).
- Integrated Wi-Fi Module: For wireless connectivity.
Setup and Installation
The FERMAX City Panel Duox Plus S1 AP101 is designed for door mount installation and outdoor use. Follow these general steps for setup:
- Site Selection: Choose a suitable outdoor location near the entrance, ensuring it is protected from direct heavy rain and accessible for users.
- Power Disconnection: Ensure all power to the installation area is disconnected at the main breaker before proceeding.
- Mounting: Securely mount the panel to the door frame or wall using appropriate fasteners. Refer to the detailed mounting template (not provided in this general manual) for precise drilling locations.
- Wiring: Connect the Duox Plus system wiring to the panel's terminals. Pay close attention to polarity and ensure all connections are firm. This panel utilizes Duox Plus two-wire technology for simplified installation.
- Network Connection: Configure the Wi-Fi connection as per the Duox Plus system's network setup guide. This typically involves connecting the panel to your local Wi-Fi network for remote access and communication features.
- Power Connection: Once all wiring is complete and checked, restore power to the system.
- System Test: Perform a full system test to verify audio communication, call button functionality, and Wi-Fi connectivity.
For detailed wiring diagrams and specific mounting instructions, please refer to the complete installation guide provided with your Duox Plus system.
Operating Instructions
Using the FERMAX City Panel Duox Plus S1 AP101 is straightforward:
- Making a Call: To call an indoor unit, press the call button. The panel will establish communication with the corresponding indoor monitor.
- Two-Way Communication: Once a call is established, speak clearly into the panel's microphone. The audio will be transmitted to the indoor unit, and you will hear the response through the panel's speaker.
- Nameplate Illumination: The nameplate area is typically illuminated for visibility in low-light conditions.
- Wi-Fi Features: Depending on your Duox Plus system configuration, the Wi-Fi connectivity may enable features such as call forwarding to mobile devices or remote door opening via a dedicated application. Consult your system's application guide for these advanced features.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your FERMAX City Panel Duox Plus S1 AP101:
- Cleaning: Clean the exterior of the panel periodically with a soft, damp cloth. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the aluminum and stainless steel surfaces.
- Inspection: Regularly inspect the panel for any signs of physical damage, loose connections, or wear. Check the integrity of the mounting.
- Software Updates: If applicable, ensure your Duox Plus system firmware and associated applications are kept up-to-date to benefit from the latest features and security enhancements. Refer to the FERMAX website or your system's documentation for update procedures.
Troubleshooting
If you encounter issues with your FERMAX City Panel Duox Plus S1 AP101, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No audio during call | Loose wiring, microphone/speaker obstruction, system fault. | Check wiring connections. Ensure speaker and microphone grilles are clear. Consult a qualified technician if the issue persists. |
| Call button unresponsive | Button malfunction, wiring issue, system not powered. | Verify power supply to the system. Check call button wiring. Contact support if button is physically damaged. |
| No Wi-Fi connectivity | Incorrect Wi-Fi settings, router issues, signal interference. | Verify Wi-Fi network name and password. Restart your Wi-Fi router. Ensure the panel is within Wi-Fi range. |
| Panel not powering on | No power supply, faulty wiring, internal component failure. | Check power source and all electrical connections. Ensure circuit breaker is on. Seek professional assistance. |
For issues not listed here or if solutions do not resolve the problem, please contact FERMAX technical support.
Specifications
| Feature | Detail |
|---|---|
| Brand | FERMAX |
| Model | City Panel Duox Plus S1 AP101 |
| Mounting Type | Door Mount |
| Indoor/Outdoor Usage | Outdoor |
| Connectivity Technology | Wireless (Wi-Fi) |
| Connectivity Protocol | Wi-Fi |
| Material | Aluminium, Stainless Steel |
| Recommended Uses | Outdoor Security |
| Package Dimensions | 5.83 x 5.43 x 2.87 inches |
| Unit Count | 1.0 Count |
| Date First Available | June 26, 2023 |
| Manufacturer | FERMAX |
Warranty and Support
For warranty information and technical support regarding your FERMAX City Panel Duox Plus S1 AP101, please contact FERMAX directly. You can find contact details and additional resources on the official FERMAX website or through their Amazon store page:
Visit the FERMAX Store on Amazon
Please have your product model number (AP101) and ASIN (B0C9DW76X8) ready when contacting support.






