Gewiss Chorus GW 18 341 TB Manual Del Usuario página 83

Open door alarm: the door of the front door unit has been open
for longer than 5 minutes (the electro-lock on the door must have
been suitably connected, and the FDU door status function must
be enabled)
Hands free function enabled
Business office function enabled
2. Current date
3. Current time
4. Function associated with the key
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