Message Manager; Internal Booster; Interconnection; Loudspeaker Outputs - Bosch Plena Installation And User Instruction Manual

Plena Voice Alarm System | Installation and User Instructions | Technical data
8.2.2

Message manager

Data format:
WAV-file, 16-bit PCM, mono
Supported sample rates (fs):
24 kHz, 22.05 kHz, 16 kHz,
12 kHz, 11.025 kHz, 8 kHz
Frequency response:
@ fs = 24 kHz, 100 Hz - 11 kHz (+1/-3 dB)
@ fs = 22.05 kHz, 100 Hz - 10 kHz (+1/-3 dB)
@ fs = 16 kHz, 100 Hz - 7.3 kHz (+1/- 3 dB)
@ fs = 12 kHz, 100 Hz - 5.5 kHz (+1/-3 dB)
@ fs = 11.025 kHz, 100 Hz - 5 kHz (+1/-3 dB)
@ fs = 8 kHz, 100 Hz - 3.6 kHz (+1/-3 dB)
Distortion:
< 0. 1 % @ 1 kHz
Signal-to-noise ratio (flat at max. volume):
> 80 dB
Memory capacity:
64 Mbit EEPROM
Recording/playback time:
500 s @ fs = 8 kHz to 167 s @ fs = 24 kHz
Number of messages:
max. 255 wave files
Supervision EEPROM:
continuous checksum control
Supervision DAC:
1 Hz pilot tone
Data retention time:
> 10 years
8.2.3

Internal booster

Rated output power:
240 W
Frequency response:
50 Hz - 20 kHz (+1/-3 dB, @ -10 dB ref. rated output)
Distortion:
< 1% @ rated output power, 1 kHz
Signal-to-noise ratio (flat at max. volume):
> 85 dB
Supervision:
20 kHz pilot tone
Outputs:
70, 100 V screw terminal, 100 V call out
Bosch Security Systems | 2004-06 | 9922 141 ?????en
8.2.4

Interconnection

Call Station (LBB1956):
Redundant RJ45 sockets, CAN bus
max. 8 call stations
Voice Alarm Router (LBB1992):
RJ45 socket, CAN bus
max. 2 routers
PC:
USB 2.0 (USB 1. 1 compatible)
External booster
3-pin XLR and screw terminals, max. 5 A
max. rated output 480 W
8.2.5

Loudspeaker outputs

Type:
Screw terminals
Number of zones:
6
Number of loudspeaker lines:
12 (2 per zone)
Signal-to-noise ratio (flat at max. volume):
> 85 dB
Line voltage:
100 V
8.2.6

Overrides

Type:
3-wire or 4-wire on screw terminals
Voltage:
24 V(DC) for 4-wire, if selected
Current:
max. 0.8 A
8.2.7

Trigger outputs

Type:
Screw terminals
Voltage:
Floating, max. 250 V
Current:
max. 0.5 A
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