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Bosch Security Systems | 2003-09 | 9922 141 50502en
Plena Message Manager | Installation and Operating Manual | en | 22
5 Technical data
5.1 Electrical
Mains voltage 230/115 Vac, ±10%, 50/60Hz
Max mains power consumption 50 VA
Max mains inrush current 3 A @ 230 Vac / 6A @ 115 Vac
Battery voltage 24 Vdc, +20%/-10%
Max battery current 1 A
5.2 Messages
Data format wav-file, 16 bit PCM, mono
Supported sample rates (fs) 24 kHz, 22.050 kHz, 16 kHz, 12 kHz, 11.025 kHz, 8 kHz
Frequency response @ fs = 24 kHz 100 Hz - 11 kHz (+1/-3 dB
@ fs = 22.050 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
S/N (flat at max volume) > 80 dB
Memory capacity 8.38 MByte EEPROM
Recording/playback time 500 s @ fs = 8 kHz - 167 s @ fs = 24 kHz
Max number of messages 12
Supervision EEPROM continuous checksum control
Supervision DAC 1 Hz pilot tone
Data retention time > 10 years
5.3 Inputs
Loopthrough audio input 1 (3-pin XLR, balanced)
Sensitivity 1 V
Impedance 20 kOhm
CMRR > 25 dB (50 Hz - 20 kHz)
Loopthrough audio input 2 (Cinch, unbalanced)
Sensitivity 1 V
Impedance 20 kOhm
5.4 Outputs
Supervision pilot tone 20 kHz, ±10%, level adjustable
Line output 1 (3-pin XLR, balanced)
Nominal level 1 V, adjustable
Impedance < 100 Ohm
Line output 2 (Cinch, unbalanced)
Nominal level 1 V, adjustable
Impedance < 100 Ohm
Tech nica l dat a