Number Item Description
3 All call button – To select all zones, press the All call button, all zone LEDs will go
on.
– To deselect all selected zones, press the All call button again, the
zone LEDs will go out.
4 Push To Talk (PTT) button – When the PTT button is pressed and no call with a higher priority is
busy from another call station or from the Telephone/Emergency
input, then a call will be made to the selected zones. The Talk LED
will light up green during the call. If an attention chime has been
configured on this Call Station, the call will start with this chime
and the Talk LED will flash during the chime as an indication to
wait before talking. The zone indicators of the addressed zones on
the All‑in‑One Unit will flash during the call. The call stops when
the PTT button is released.
– When the PTT button is pressed but the system is occupied by
another call with a higher priority, then the Call Station will wait
and the Talk LED lights up amber. When the higher priority call
finishes, the Call Station will continue with the call and the Talk
LED turns green. When the PTT button is released before the
higher priority call finishes, the call is cancelled.
– When the PTT button is pressed but no zones were selected
before, then the Talk LED will light up amber. When the PTT button
is kept pressed and no higher priority call is busy, after 3 seconds
the previous zone selection will be used automatically and the Talk
LED will turn green.
5
Talk LED The Talk LED shows the status of the Call Station:
– Off - no activity of this Call Station.
– Amber - system occupied or no zones selected.
– Green - call active, the user can speak.
– Green flashing - call active, busy with attention chime.
7 Power LED – Green LED on indicates power on.
– Green LED off indicates power off.
Plena All-in-One System Operation | en 39
Bosch Security Systems B.V. Installation and Operating Manual 2014.09 | V1.2 |
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