ST 801

Audio interface for frequency optimised, floating connection of one channel (IN & OUT) to an Intercom subscriber (standard ABDC) in analogue 4-wire technology. A red LED shows that the microphone input in the server is active. The station connection cable (RJ11-RJ11) must be ordered ...

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ST 802

Interface for conversation recording at analogue 4-wire stations. The connection is done directly at the server, parallel to ABCD. ...

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ST 803

Audio-Transformer-Interface with two circuits for separation of the potentials of audio signals. ...

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ST 804

Ring-Detect-Interface for analysis of ring signals of an analogue telephone line. ...

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ST 808

Compact audio storage module for storing and playback of 49 seconds of speech or music in WAV-format. With the WaveLoader software WAV-files are transferred to the ST 808 via an RS 232 interface. Playback at the respective subscriber is started via a floating (make) contact and is repeated until the contact is opened ...

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