Plena Voice Alarm System System overview | en 35
Bosch Security Systems B.V. Installation and Operation manual 9922 141 1037x (V2.16) | V0.6 | 2011.09
Power requirements
Each zone will have varying power requirements, ranging from small shops with a single
loudspeaker to department stores with several floors and more loudspeakers. Parking garages
and open-air walkways will require weatherproof sound projectors or horn loudspeakers. To
facilitate phased evacuation from different levels of the shopping center, public areas are
divided into zones. Additional Plena Power Amplifiers are incorporated to provide additional
power, two-channel operation and for use as a spare amplifier.
Layout
See Figure 3.16, Table 3.5 and Table 3.6
Table 3.5 Zones
Table 3.6 Units
Zone Description Power
Z1-30 30 small shops/kiosks 30 x 6 W
Z31-36 6 shops 12 x 6 W
Z37-42 6 medium-sized stores 24 x 6
Z47 Security control room 1 x 6 W
Z48 Offices 4 x 6 W
Z49 Walkways ground floor 4 x 6 W
Z50 Gallery 1st floor 10 x 6 W
Z51 Gallery 2nd floor 10 x 6 W
Z52 Main public square 4 x 18 W
Z53 Parking garage level 1 6 x 10 W
Z54 Parking garage level 2 6 x 10 W
Total 858 W
Unit Description No.
LBB1990/00 Controller 1 x
LBB1992/00 Router 8 x
LBB1996/00 Remote control 1 x
LBB1997/00 Remote control extension 8 x
LBB1956/00 Call station 1 x
LBB1957/00 Call station keypad 5 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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