Bosch Appliances 9922 141 70691 en manual Technical data, General, Transmission links

DCN Wireless Installation and User Instructions System Design and Planning

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9Technical data

9.1System electrical and electro-acoustic characteristics

9.1.1General

table 9.1: Electro-acoustic characteristics

Nominal input level:

85 dB SPL Overload 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 gain control:

24 x 1 dB and off (mute)

9.1.2Transmission links

•From delegate microphone to interpreter headphones

•From delegate microphone to delegate headphones

•From interpreter microphone to delegate headphones

•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

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 2007-02 9922 141 70691 en