Bosch Security Systems | 2004-06 | 9922 141 10371en
Plena Voice Alarm System | Installation and User Instructions | System units en | 23
3.3 Router
A single controller can serve and manage 6 loudspeaker
zones. To extend the number of zones, one or more
routers (LBB1992/00) can be connected. In total, 6 extra
routers can be connected to a controller, each adding 6
extra loudspeaker zones. As a consequence, in its
maximum configuration, a Plena Voice Alarm System
can simultaneously serve and manage up to 60
loudspeaker zones. If the power supplied by the
controller is not sufficient, two additional external
boosters can be connected to each router (see also
section 3.3.2).
3.3.1 Trigger inputs
In addition to the trigger inputs supplied by the
controller, each router adds 6 extra EMG and business
trigger inputs to the Plena Voice Alarm System.
To connect the trigger inputs, refer to section 4.7.
3.3.2 External boosters
A router does not have an internal booster. If the power,
supplied by the controller, is not sufficient, two
additional external boosters (1 and 2) can be connected
to a router. Multiple boosters can be connected to
amplify calls and BGM or just to serve as backup
boosters. The function of a booster depends on the
mode for which the controller is configured:
• In 1-channel mode, external booster 1 is additional
to the controller’s internal booster (see section 3.2.4)
to amplify calls and BGM.
• In 2-channel mode, external booster 2 is additional
to the controller’s external booster (see section 3.2.4)
to amplify calls.
To connect external boosters, see section 4.15.3.2.
figure 3.5: Fault indicator LEDs
figure 3.6: Router (LBB1992/00)
LBB1990/00
Voice Alarm Controller
Processor reset
Network
Call/EMG
Music/Spare
Ground short
Input
Mains
Battery
Zone1
Zone2
Zone3
Zone4
Zone5
Zone6
Fault Indicators
A
B
Disabled
Message
EMG mic
RCP
Router
Note
Refer to the Configuration Software Manual
(9922 141 10381) to configure the trigger
inputs.
figure 3.7: Trigger inputs
10k
10k
Trigger Input
Business
Emergency
1 23456
12 3456
1 23456
1 23456
LBB1992/00
Router
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