Bosch Appliances 9922 141 70691 en manual Environmental conditions, Safety

DCN Wireless Installation and User Instructions System Design and Planning

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9.1.3Combined devices from input to output

•Delegate microphone with transmission link to interpreter headphones

•Delegate microphone with transmission link to delegate headphones

•Delegate microphone with transmission link to auxiliary output

•Interpreter microphone with transmission link to interpreter headphones

•Interpreter microphone with transmission link to delegate headphones

•Interpreter microphone with transmission link to auxiliary output

table 9.3: Combined devices from input to output

Typical frequency response:

125 Hz to 20 kHz Front-to-random sensitivity index: > 4.6 dB

Rated equivalent sound pressure level due to inherent noise: < 25 dB(A)

Total harmonic distortion @ overload: < 1%

Crosstalk attenuation: > 80 dB

9.2Environmental conditions

table 9.4: Environmental conditions

Working conditions:

Fixed, stationary, transportable

Temperature range:

•-20 to +70 °C (transport)

•+5 to +45 °C (operation)

•For EPS and contribution devices with an LCD, the maximum temperature is +40 °C. Relative humidity:

< 95%

9.3Safety

According Low Voltage Directive 73/23/EEC amended by Directive 93/68 EEC.

•For European countries: according EN60065. Marking: CE

•For international countries: IEC 60065 according CB-Scheme.

•For North America:

•USA: ANSI/UL 60065

•Canada: CAN/CSA no. 60065

•Marking c-CSA-us.

Bosch Security Systems 2007-02 9922 141 70691 en