Bosch Plena - Connecting Loudspeaker Zones

Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | Operation en | 54
•If a Zone select indicator is turned OFF, no BGM is
distributed to that zone. Press the Zone select button to
start distributing BGM to that zone.
•If a Zone select indicator is turned ON, BGM is
distributed to that zone. Press the Zone select button to
stop distributing BGM to that zone.
6.4.3 Adjusting BGM volume
The voice alarm controller has two types of controls to
adjust the BGM volume (see figure 6.5). The overall
(maximum) volume of the BGM source is set with the
master volume control, which is located below the BGM
source selector (Select button, see figure 6.3). Per zone,
the local volume can be adjusted with the zone volume
switches, which are located below the zone selection
keys (Zone select, see figure 6.4).
6.4.4 Adjusting BGM tone
The voice alarm controller has two rotary knobs to
adjust the sound of the BGM (see figure 6.6).
• Use the upper rotary knob to adjust the treble or
high frequency content of the BGM.
• Use the lower rotary knob to adjust the bass or low
frequency content of the BGM.
6.5 Business calls
Business calls can only be made from a call station. It is
not possible to use the hand-held emergency
microphone for making business calls. Proceed as
follows to make a business call from a CS:
1 Select one or more zones (see section 6.5.1).
2 Make the announcement (see section 6.5.2).
6.5.1 Selecting zones
Select the zones to which the business call must be
distributed by pressing the corresponding Zone select
buttons (see figure 6.7). A green Zone select LED next to
a button, indicates that the zone is selected.
•If a Zone select indicator is turned OFF, the zone is not
selected. Press the Zone select button to select the
zone.
•If a Zone select indicator is turned ON, the zone is
selected. Press the Zone select button to deselect the
zone.
figure 6.4: BGM: Zone select buttons
figure 6.5: BGM volume controls
Zone select
0
-
+
-
+
CD/Tuner
Aux
Select
0
-
+
-
+
CD/Tuner
Aux
Select
Zone select
figure 6.6: BGM tone keys
0
-
+
-
+
CD/Tuner
Aux
Select
Zone select
Plena
Z1
Z2
Z3
Z4
Z5
Z6
Z1-Z6