Busch-Jaeger Audio Module A251381A-B-03 (2TMA220160B1007)

The Busch-Jaeger Audio Module A251381A-B-03 brings stereo audio integration to the Busch-free@home® smart home system. Unlike basic audio switches, it connects directly to the system bus for centralized control of sources, volume, and mute functions without additional power supplies.

Highlights

• Integrates stereo line-level audio sources into free@home®
• Bus-powered 24 V DC operation — no separate adapter needed
• Flush-mounted design with only 35 mm installation depth
• Configured entirely via the free@home® System Access Point

In daily use

Connect a stereo source to the line-in and distribute audio to any zone in the free@home® network. Volume, source selection, and mute are controlled through the smart home app or wall panels, and the module can be included in scenes for one-touch audio control.

Full specifications

• Audio channels: Stereo
• Audio inputs: 1x stereo line-in
• Audio outputs: 1x stereo line-out
• Control protocol: Busch-free@home® bus
• Mounting type: Flush-mounted
• Power supply: System bus powered (24 V DC)
• Operating voltage: 24 V DC
• Operating temperature: 5 °C to 45 °C
• Storage temperature: -20 °C to 70 °C
• Protection class: IP20
• Housing material: Plastic
• Installation depth: 35 mm
• Bus connection: 2-wire terminal
• Configuration: Via free@home System Access Point
• Application: Smart home audio integration

Final note

A compact, bus-powered solution for adding distributed audio to any Busch-free@home® installation.