BTicino – 351100 – Sfera 2‑Wire Speaker & Microphone Module

The BTicino 351100 is a dedicated audio module for Sfera and Robur 2-wire door-entry systems. This surface-mount speaker and microphone unit supports up to 100 call buttons and includes volume controls, LED indicators, night backlighting sensor, and direct door lock relay activation. Built for robust residential and commercial installations.

Key Features & Specifications

• Model / P/N: 351100  

• Function: Speaker and microphone module with volume adjustment

• System: 2-wire audio/video entrance panels (Sfera/Robur)  

• Call Capacity: Handles up to 100 pushbutton calls (with expander modules)  

• Door Lock Output: Direct activation via S+/S− clamps (18 V impulse, 4 A; 250 mA hold current; ≤ 30 Ω) plus local release via PL clamps  

• UPS Input: Supports additional local power supply  

• LED Indicators: Communicates status for door release, communication, forwarded call, and busy system  

• Night Sensor: Ambient light sensor for night backlighting  

• Configuration: Via TiSferaDesign software or manual switches  

• Mounting Dimensions: 1-module wide (approx. 91×115 mm), surface mounting; IP54 rating; operating −25 °C to +70 °C