Bosch Plena - Installation; External Connections; External Power Amplifiers

Bosch Security Systems | 2006-06 | 9922 141 10377 en
Plena Voice Alarm System | Installation and User Instructions | Equipment en | 46
6.2 Installation
The voice alarm router is suitable for table-top and
19-inch rack mounting installation. Two brackets for
rack-mounting are supplied. Installing a voice alarm
router is similar to installing a voice alarm controller
(see section 5.2).
6.3 External connections
6.3.1 Voice alarm controller
Connect the voice alarm router to the voice alarm
controller (see section 5.3.3).
6.3.2 Loudspeakers
The voice alarm router has 6 zone outputs (Z1 to Z6).
The procedure for connecting loudspeakers to a voice
alarm router is the same as the procedure for connecting
loudspeakers to a voice alarm controller (see section
5.3.6).
6.3.3 Volume overrides
The voice alarm router has 6 override outputs; 1 for
each connected zone. These are suitable for 4-wire
override (24 V) and for 3-wire override. The procedure
for using volume override in zones that are connected to
a voice alarm router is the same as the procedure for
using volume override in zones that are connected to
the voice alarm controller (see section 5.3.7).
6.3.4 Trigger inputs
The voice alarm router has a terminal block to which 6
emergency (EMG) and 6 business trigger inputs can be
connected. Third party systems can use the trigger
inputs to start emergency and business calls in the Plena
Voice Alarm System. The trigger inputs must be
configured with the configuration software. The
procedure for connecting trigger inputs to a voice alarm
router is similar to the procedure for connecting trigger
inputs to the voice alarm controller (see section 5.3.13).
6.3.5 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. an
LBB1930/00 Plena Power Amplifier) depends on the
channel mode for which the system is configured
(see section 17.5). See figure 6.2 for information about
connecting external power amplifier 1 to a voice alarm
router.
figure 6.2: Connecting external power amplifier 1
De
Th
Booster 1
Out
GND
Booster 2
100V 70V 0
line in line out
12
3
12
3
GND GND++
--
LBB1930/00
LBB1992/00
0 100V 0 100V70V0100V
TRG1 TRG2
NC
B
0 100V 0 100V 0 +24V-
Booster 2 in
Z6
DC In
Z1
Z2