88
en | Installation wiring
PRAESENSA
2021.12.21 | V0.15b | F.01U.402.882
Underwriters Laboratories Listing Document (ULLD)
Bosch Security Systems B.V.
Microphone (PRA-CSLD)
Frequency range
(+3 / -6 dB)
100 Hz — 14 kHz
Microphone (PRA-CSLW)
Nominal acoustic input level (configurable)
85 — 105 dBSPL
Maximum acoustic input level
120 dBSPL
Signal to Noise Ratio (SNR)
> 73 dBA
Directivity
Unidirectional
Frequency range
(+3 / -6 dB)
500 Hz — 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
Maximum sound pressure level, at 1 m
75 dBSPL
Volume control
Mute, -40 dB to 0 dB
Power transfer
Power over Ethernet (PoE 1‑2)
Nominal DC input voltage
Standard
48 V
IEEE 802.3af (mode B)
Maximum input current
350 mA (IEEE802.3af), With 0 to 4
PRA-CSE connected.
Rated voltage
48V
Line input
Signal to Noise Ratio (SNR)
> 96 dBA
Total Harmonic Dist Noise (THD+N)
< 0.1 %
Supervision (PRA-CSLD)
Supervision
Microphone
Audio path
Controller continuity
PoE (1‑2)
Current
Pilot tone
Watchdog
Voltage
Содержание PRAESENSA
Страница 1: ...PRAESENSA Public Address and Voice Alarm System en Underwriters Laboratories Listing Document ULLD ...
Страница 2: ......
Страница 165: ......