Brand: FERMAX
Category: Intercom System
Document Type: Manual
Language: EN
Available Languages: ES , EN
Manual for DUOX
Uploaded: April 20, 2026, 7:50 p.m.
Warranty Information
Fermax offers a limited 24-month warranty for this product.
TX Operating Mode:
The relay sends commands to other devices without activating its output. Functions: Lock-release after call, lock-release to configured panel, concierge call.RX Operating Mode:
The relay activates its output if it receives a configured command and matches other parameters. Functions: Relay activation upon receiving lock-release command, concierge call, call to residence from panel.Configuration:
Allows parameter reset, setting activation times (timed or bi-stable), defining functions by operating mode (TX/RX), and managing lock-release and call commands.Troubleshooting and error codes
| Problem | Solution |
| Relay ON LED not lit | Re-call to ensure address saved. |
| Cannot configure | Check TX/RX mode and parameters. |
| Relay not activating | Check source, destination, mode, and timing configurations. |