Technical Data; System Electrical And Electro-Acoustic Characteristics - Bosch DCN Installation And User Instructions Manual

Wireless discussion system
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DCN Wireless | Installation and User Instructions | System Design and Planning
9

Technical data

table 9. 1 : Electro-acoustic characteristics
Nominal input level:
85 dB SPL
Maximum input level:
110 dB SPL
Automatic gain reduction (not for PA-floor output):
24 dB (interpretation channels)
12 dB (delegate loudspeaker channel)
Automatic gain reduction with:
3 dB (2 microphones on)
6 dB (4 or more microphones on)
Loudspeaker volume control:
24 steps of 1 dB and off (mute)
9.1.2
Routing links
From delegate microphone to interpreter
headphones
From delegate microphone to delegate headphones
From interpreter microphone to delegate
headphones
table 9.2: Transmission links
Frequency response:
125 Hz to 20 kHz (General)
125 Hz to 3.5 kHz (Intercom links)
Harmonic distortion:
< 0.5%
Harmonic distortion @ overload:
< 1%
Crosstalk attenuation @ 4 kHz:
> 80 dB
Dynamic range:
> 90 dB
Bosch Security Systems | 2007-11 | 9922 141 70691 en
9. 1
System electrical and
electro-acoustic
characteristics
9.1.1
General
From interpreter microphone to interpreter
headphones
From auxiliary input to delegate headphones
From auxiliary input to interpreter headphones
From delegate microphone to auxiliary output
From interpreter microphone to auxiliary output
en | 26

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