Praesideo 3.5 Installation and User Instructions 3 Control Equipment

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6.7.7Audio microphone inputs (only input 1 and input 2)

Connector (rear side):

Female galvanically separated XLR per input Preferred cable:

Shielded

Nominal input level:

-57 dBV based on 91 dBSPL for a microphone with sensitivity of 2 mV/Pa, a male voice with normal loudness and a speaker to microphone distance of 0.15 m

Headroom:

30dB Input range:

-7 to +8 dB with respect to nominal input level (limiter threshold)

Input sensitivity setting:

Software

Frequency response:

-3 dB points at 300 Hz and 20 kHz (tolerance ± 1 dB) First order, high-pass speech filter at 300 Hz

Input impedance: 1360 ohm Signal/Noise ratio

>62 dBA with 25 dB headroom Common mode rejection ratio:

>55 dB at 100 Hz

>65 dB at 1 kHz and 10 kHz Phantom supply:

12 V ± 1 V (max. 15 mA) Limiter:

Analog limiter, level -8 dB with respect to maximum

attack time: 1 ms

decay time: 300 ms

threshold at nominal input level

(Only for audio expanders of version HW15/xx and higher. Hardware information can be obtained using the front panel menu.)

6.7.8Audio outputs

Connector (rear side):

One galvanically separated XLR and one stereo (dual mono) cinch for each output

Preferred cable:

Shielded

Maximum output level:

+18 dBV ± 1 dB (XLR)

+6 dBV ± 1 dB (cinch) Output range:

-30 dB to 0 dB with respect to maximal output level

Output level setting:

Software

Frequency response:

-3 dB points at 20 Hz and 20 kHz (tolerance ± 1 dB) Output impedance:

<100 ohm Signal/Noise ratio:

> 89 dBA at maximum level

Output cross-talk:

<-85 dB Distortion:

<0.05% at 1 kHz at -3 dB of the maximum input signal

Bosch Security Systems 2011-02

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Bosch Appliances 3.5 manual Audio microphone inputs only input 1 and input

3.5 specifications

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