Plena Voice Alarm System System overview | en 37
Bosch Security Systems B.V. Installation and Operation manual 9922 141 1037x (V2.16) | V0.6 | 2011.09
Power requirements
The system controller features a built-in 240 W power amplifier, able to drive up to 40
loudspeakers (6 W). Additional Plena Power Amplifiers are incorporated to provide additional
power, two-channel operation and spare amplification. To facilitate phased evacuation from
different floors of the hotel, guest areas are divided into separate zones, each fitted with 13
ceiling loudspeakers in the corridors. The bar uses cabinet loudspeakers, while the parking
garage uses weatherproof horn loudspeakers.
Layout
See Figure 3.17, Table 3.7 and Table 3.8
Table 3.7 Zones
Table 3.8 Units
Figure 3.17 Example of a hotel
Zone Description Power
Z1 Bar 3 x 6 W
Z2 Restaurant 6 x 6 W
Z3 Lobby 2 x 6 W
Z4 Office 1 x 6 W
Z5 Kitchens 2 x 6 W
Z6 Parking garage 3 x 10 W
Z7-12 Floors 1 to 6 78 x 6 W
Total 582 W
Unit Description No.
LBB1990/00 Controller 1 x
LBB1992/00 Router 1 x
LBB1996/00 Remote control 1 x
LBB1997/00 Remote control extension 1 x
LBB1956/00 Call station 2 x
LBB1957/00 Call station keypad 3 x
LBB1935/00 Power Amplifier (240 W) 1 x
LBB1938/00 Power Amplifier (480 W) 2 x
PLN-DVDT DVD Tuner 1 x
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