Built-in speaker for mounting in letterbox systems, voice compartments, door-side installations or front plates.
Up to eight mechanical bell buttons can be connected to the screw terminals provided.
Signal transmission and power supply of speaker via reverse-polarity-protected and short-circuit-proof 2-wire bus.
Compact size.
Weather-resistant speaker.
High-quality electret microphone.
Alternating current polling of the bell button connections to prevent oxidation on the button contacts.
Securing of connection terminals against incorrect connection.
Up to eight mechanical bell buttons can be connected.
Colour camera for door station can be connected.
Speakerphone function (voice-controlled talk-back with echo and background noise suppression).
Adjustable voice volume.
One-man start-up with easy start-up procedure.
Acknowledgement tone when call button is pressed.
Technical data
Power supply: DC 26 V ± 2 V (via 2-wire bus)
Connections
2-wire bus: 2x screw terminals
Additional power supply: 2x screw terminals
Mechanical bell button: 8 x screw terminal
Common earth of bell buttons: 1 x screw terminal
Connection cable: 2 x connector strip
Video: 1 x connector strip
Protection type: IP44
Ambient temperature: -25 °C to +70 °C
Notes
This component enables door communication systems with up to 140 audio devices to be set up (e.g. 1 x built-in speaker, 11 x add-on modules for built-in speakers, 136 x surface-mounted home stations).
The video control device is required if the system is extended with a colour camera.
Protection type IP44 only in combination with a suitable front or when installed.
