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AV-04AFD can be mounted in special positions that have been designed with high standards for fire safety in mind. It helps to organize feedback with the dispatcher to confirm a fire or emergency situation.

Call button backlight statuses 

The call button blacklight can display the following situations: 

  • permanently lights in standby mode;

  • blinks rapidly during a call;

  • blinks slowly during a conversation;

  • blinks rapidly twice when the lock is opened.


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