Bosch Plena Installation And User Instruction Manual page 44

Plena Voice Alarm System | Installation and User Instructions | Installation
4. 1 5.3. 1 Connecting an external booster to the con-
troller
To connect an external booster to the controller, see
figure 4.23.
LBB1990/00
Voice Alarm Controller
100V
Z2
0
100V
Z3
0
100V
Z4
0
100V
Z5
0
100V
Z6
0
Ext
100V
Booster
In 0
DC In
24V
100V
100V
LBB1930/00
Booster Amplifier
figure 4.23: Connecting an external booster
4. 1 5.3.2 Connecting external boosters to the router
To increase the power in the system, optionally, to each
router one or two external boosters can be connected
(see figure 4.24). The function of an external booster,
depends on the mode for which the controller is
configured:
Bosch Security Systems | 2004-06 | 9922 141 10371en
0
COM
NO
Z2
100V
NC
Z2
Fault
COM
Z3
0
NO
100V
NC
Z4
Z3
COM Call
0
NO
Z5
100V
NC
Z4
24V Volume Override
0 Z6
NO
100V
Z5 TRG 1
TRG2
0
100V Out
Z6
0
100V
Int
70V Booster
Out
0
GND
100V Call out
External Booster
+ GND GND
1 2 1
-
3 3
0V
line in
• In 1-channel mode, external booster 1 is used to
amplify calls and BGM, in addition to the
controller's internal booster. In 1-channel mode,
external booster 2 has no function.
• In 2-channel mode, external booster 1 is used to
amplify BGM, in addition to the controller's internal
booster. External booster 2 can be connected to
amplify calls, in addition to the controller's
(mandatory) external booster.
To connect external booster 1 to a router, see figure
4.24.
LBB1992/00
Voice Alarm Router
0 100V 0 100V 70V 0 100V
Z1 Z2
0 100V 0 100V 0 +24V-
Z6 Booster 2 in
DC In TRG1 TRG2
100V 0V
100V
LBB1930/00
Booster Amplifier
figure 4.24: Connecting external booster 1
en | 44
NC
Out
GND
B
Booster 2
Booster 1
+ GND GND
1 2 1
-
3 3
line in
De
Th