External Power Amplifiers - Bosch Plena Operating Manual

Plena
5.2.5

External power amplifiers

The voice alarm router has 2 external power amplifier outputs (line level, 1 V) and 1 external
power amplifier input (100 V) to connect two external power amplifiers. The function of the
external power amplifier (e.g. a Plena Power Amplifier) depends on the channel mode for
which the system is configured (see section 1-Channel mode operation, page 77 and section
2-Channel mode operation, page 78).
See the next information about connecting external power amplifier 1 to a voice alarm router:
Figure 5.21: Connecting external power amplifier 1
See the next information about connecting external power amplifier 2 to a voice alarm router:
Bosch Security Systems B.V.
Design & Quality
0V 0 100V 0 100V 70V 0 100V
The Netherlands
Out
0V 0 100V 0 100V 0
GND
Z5
Amplifier 2
Amplifier 1
+ GND GND +
1 2 1 2
- -
3 3
line in line out
Installation and Operation manual
NC
Z1 Z2 Z3
+24V-
Z6 Booster 2 in DC In TRG1 TRG2 B
Failure
100V 70V 0 0
Connection | en 67
2013.07 | V2.0 |