Bosch PRAESENSA - Technical Data

140 en | LCD call station | PRA-CSLD, PRA-CSLW PRAESENSA
2019.11 | V1.00 | Installation manual Bosch Security Systems B.V.
12.7 Technical data
Electrical
Microphone (PRA-CSLD)
Nominal acoustic input level (configurable) 80 to 100dBSPL
Maximum acoustic input level 120dBSPL
Signal to Noise Ratio (SNR) > 70dBA
Directivity Unidirectional
Frequency response
(+3 / -6dB) 100Hz to 14kHz
Microphone (PRA-CSLW)
Nominal acoustic input level (configurable) 85 to 105dBSPL
Maximum acoustic input level 120dBSPL
Signal to Noise Ratio (SNR) > 73dBA
Directivity Unidirectional
Frequency response
(+3 / -6dB) 500Hz to 8kHz
(noise cancelling)
Display
Size 4.3"
Touch screen Capacitive
Color depth 24‑bit
Resolution 480 x 272px
Brightness 300cd/m
2
Monitor loudspeaker
Nominal acoustic input level
Between 500Hz and 3kHz at 1m 75dBSPL +/-6dB
Gain control
1dB steps Mute, -40dB to 0dB
Frequency range (-10dB) 500Hz to 3kHz
Line input
Signal to Noise Ratio (SNR) > 96dBA
Total Harmonic Distortion + Noise (THD+N) <0.1%