Brand: FERMAX
Category: Intercom System
Document Type: Manual
Language: EN
Available Languages: ES , EN
Manual for DUOX PLUS
Uploaded: April 20, 2026, 7:52 p.m.
Warranty Information
The warranty is 24 months.
- DUOX PLUS AMPLIFIER: Connection of modular buttons, keypad, display.
- DL1 Mode LED: Indicates different operating modes such as Concierge, Inverse or Sequential Programming, and Standby/Night Concierge.
- PRG. SW1: Programming button. Allows configuring the panel as MASTER for programming apartment terminals. Only one MASTER panel per installation.
- Configuration - Amplifier Programming: Can function as a general entrance, block, or sub-block panel. Uses 6-digit addresses (BBSSNN) for apartments.
- Panel Connectors: B,B (DUOX Bus), C/NO/NC (Dry relay contact), +12 (12Vdc output), BS (entrance push-button), SP (door sensor input).
- CN2: Connection for individual buttons of Cityline continuous profile panels.
- CN3: OneToOne Module connection.
- Language Selector: Allows selecting the language for "door open" messages and voice-assisted configuration.
- Audio Adjustment: Allows adjusting speaker and microphone volume.
- SPK: Speaker connection.
- JP1: Camera LEDs: Controls the camera's LED lighting.
- JP2: Line adapter jumper: For type C line adaptation.
- QR: QR Code: For accessing parameter configuration.
- Programming data label: For recording the performed configuration.
- Version: Indicates the amplifier version.
- TECHNICAL CHARACTERISTICS: Includes IP/IK, power supply, consumption, illumination, audio power, volume, and operating temperature.
- Default parameter values: Lists the default values for various parameters such as times, panel types, block/sub-block numbers, etc.
- Capacities: Maximum number of push-buttons, calls from Keypad Panel, and number of panels.
- RESTORE TO FACTORY VALUES: RESET: Functions to restore button mapping and parameters to factory settings.
- PRE-WIRING: Wiring diagram and default button call assignment.
- DUOX Amplifier Call: Use of combined push-buttons, apartment address coding, and making calls.
Troubleshooting and error codes
| Problem | Solution |
|---|---|
| DL1 LED off. | Check power supply. |
| Buttons not responding. | Check MASTER configuration and CN1 connections. |
| No audio/video. | Check BUS and SPK connections. |
| Door does not open. | Check relay and door lock release connections. |
| No programming. | Verify MASTER configuration. |