2N Lift8 v1.6.0 - Manual (Page 92)

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Install the Fireman audio unit in a dedicated space that can be easily accessed by
firemen.
The Fireman call has the highest priority, suspending all the other calls (refer to
). Function Description
Turn the knob (0 > 1) to activate the Fireman call. The call duration is infinite. Return
the knob to stop the call.
The Fireman call setup is signalled by the Fireman audio unit LED (blue LED shining
around the button). Push the button (Push to talk) to activate the audio
unit microphone and speak to the other audio units (the blue LED around the button
starts flashing). While the button is pushed, no sound is transmitted from the other
audio units. Release the button to allow the persons at the other audio units (cabin,
machine room or machine room as intercom) to talk.
If the control-room (intercom) configured machine room audio unit is used, the
Fireman call is signalled by a green LED flashing on the audio unit. Push (for