Bosch Plena Voice Alarm System - 5.2.5 External power amplifiers

58 en | Connection Plena Voice Alarm System
9922 141 1037x (V2.16) | V0.6 | 2011.09 Installation and Operation manual Bosch Security Systems B.V.
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 6.1.4 and section 6.1.5 ).
See Figure 5.21 for information about connecting external power amplifier 1 to a voice alarm
router.
Figure 5.21 Connecting external power amplifier 1
See Figure 5.22 for information about connecting external power amplifier 2 to a voice alarm
router.
De
Th
Amplifier 1
Out
GND
Amplifier 2
100V 70V 0
line in line out
12
3
12
3
GND GND++
--
LBB1930/00
LBB1992/00
0 100V 0 100V 70V 0 100V
TRG1 TRG2
NC
B
0 100V 0 100V 0 +24V-
Booster 2 in
Z6
DC In
Z1
Z2