The digital Intercom module ET 811A has been developed for construction of custom-designed stations. It offers a wide range of applications and solutions e.g. for elevators, gates, entryways, ticket machines and operation desks.

The Intercom module is comprehensively equipped with a large, illuminated graphic display, a full keypad, a sound-optimized loudspeaker and an electret condenser microphone.

The graphic display shows information like call number and name of the conversation partner as well as messages, call type and events. The proven DSP-technology allows functions such as OpenDuplex, audio monitoring or microphone/loudspeaker surveillance of the station.

• White illuminated graphic display with on-screen menu, brightness and contrast adjustable.
• Excellent 16 kHz speech quality, for optimum intelligibility.
• For installation in 2.5 to 3 mm (0.1 to 0.12 in) thick panels.
• OpenDuplex with powerful Blackfin DSP.
• Audio monitoring, adjustable integration time and noise level.
• Microphone/loudspeaker surveillance.
• Voltage monitoring, i.e. when in use of greater line length, the volume is reduced automatically.
• High volume levels due to digital class-D amplifier.
• Bright multifunction LED indicates the station‘s operation status (e.g. call indication).
• Possibility for connection of headset,headphones or gooseneck microphone.
• Input for floating contact and open collector output (possibility for retrofitting a relay).