Bosch Plena LBB1990/00 - Call Station Connection; External Power Amplifier Connection

Bosch Security Systems | 2005-04 | 9922 141 10364en
Plena Voice Alarm System | Basic System Manual | Installation en | 19
3.8 Call station
The call station can be connected to one of the shielded
RJ45 call station sockets on the voice alarm controller
with a Cat-5 Ethernet cable. See figure 3.4 for
connection details.
If the cable between the call station and the voice alarm
controller is longer than 100 m, the call station must be
connected to a 24 V(DC) power source. See figure 3.5
for connection details.
3.9 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 3.6). The function of the external
power amplifier (e.g. a PLN-1P120 Plena Power
Amplifier) depends on the channel mode for which the
voice alarm controller is configured (see section 4.5.11).
figure 3.4: Connecting a call station
figure 3.5: Connecting a power supply
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LBB1990/00
LBB1956/00
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Plena
figure 3.6: Connecting an external power amplifier
100V 70V 0
line in line out
12
3
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3
GND GND++
--
COM
NC
TRG2
Z2
Z3
Z4
Z5
Z6
Ext
Booster
In
DC In
TRG 1
Int
Booster
Out
24V
Fault
Call
External Booster
Out
100 V
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70V
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Z3
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NO
Volume Override
100 V
LBB1990/00
PLN-1P120