Behnke Microphone Module, 2 Buttons, 21-3126-BS

The Behnke Module Microphone with 2 buttons (model 21-3126-BS) is a high-quality speech module designed for the Behnke BS-System bus system. It integrates a microphone and loudspeaker for full-duplex voice communication with echo cancellation and noise reduction, making it ideal for door intercom and access control applications. The module features two call buttons with white LED illumination and status indicators for call and speech. Its front panel is made of stainless steel (V2A) in a silver finish, and it is rated IP54 when installed in an appropriate housing. Power is supplied via the bus system, and the module can be mounted in flush or surface mount frames. Operating temperature range is -20°C to +50°C.

Advantages

Full-duplex audio with echo cancellation and noise reduction ensures clear communication. Stainless steel front panel provides durability and a sleek appearance. Easy integration into Behnke BS-System bus networks.

Suitable for

• Door intercom systems
• Access control entry points
• Residential and commercial building communication

Key specifications

• Product Type: Speech Module
• System Compatibility: Behnke BS-System (Bus System)
• Number of Call Buttons: 2
• Audio Components: Integrated Microphone, Integrated Loudspeaker
• Voice Transmission: Full-duplex
• Acoustic Features: Echo Cancellation, Noise Reduction
• Connection Interface: Behnke Bus (2-wire)
• Power Supply: Via Bus System
• Front Panel Material: Stainless Steel (V2A)
• Button Illumination: White LED
• LED Indicators: Call Status, Speech Status
• Mounting Type: Module for Flush/Surface Mount Frames
• Operating Temperature: -20°C to +50°C
• Protection Class: IP54 (when installed in appropriate housing)
• Application: Door Intercom Systems, Access Control
• Color: Silver

Recommendations

For optimal performance, pair with compatible Behnke BS-System components and ensure proper housing for IP54 protection.