External Power Amplifier - Bosch Plena Voice Alarm System Installation And Operation Manual

46 en | Connection
5.1.4

External power amplifier

The voice alarm controller has 1 external power amplifier output (line level, 1 V) and 1
external power amplifier input (100 V) to connect an external power amplifier (see
Figure 5.4). The function of the external power amplifier (e.g. a Plena Power Amplifier 360/
240W) depends on the channel mode for which the voice alarm controller is configured (see
section 6.1.4 and section 6.1.5 ).
Figure 5.4 Connecting an external power amplifier
9922 141 1037x (V2.16) | V0.6 | 2011.09
LBB1990/00
0
COM
NO
Z2
100V 100V
NC
Z2 Z2
COM Fault
0 Z3
0
NO
100V
100V
NC
Z4
Z3 Z3
COM Call
0 0
NO
Z5
100V 100V
NC
Z4 Z4
24V Volume Override
0 0
Z6
NO
100V 100V
Z5 Z5 TRG 1
TRG2
0 0
100V 100V Out
Z6 Z6
0 0
Ext 100V 100V
Int
Booster
In 0 70V Booster
Out
0
GND
DC In 24V
100V Call out
External Booster
+ G ND G ND +
1 2 1 2
- -
100V 70V 0
3 3
line in line out
LBB1930/00
Installation and Operation manual
Plena Voice Alarm System
Bosch Security Systems B.V.