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PRA-EOL

Bosch PRA-EOL End-of-line device, Device for loudspeaker line integrity supervision in Public Address and Voice Alarm applications, Reliable solution for (long) loudspeaker lines, Fault detection in amplifier without additional wiring, Low level, high frequency pilot tone, IP30.

https://www.esco.pk/web/image/product.template/23943/image_1920?unique=ccfa27a

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    Key Features

    * Compact device for loudspeaker end‑of‑line supervision

    * Reliable solution for (long) loudspeaker lines

    * Fault detection in amplifier without additional wiring

    * Low level, high frequency pilot tone

    Electrical

     

    Control

     

    Pilot tone detection

    Frequency

    Level

     

    25.5 kHz

    1.5 - 3 VRMS

     

    Amplifier load

    < 100 mW

     

    Control

     

    Loudspeaker cable

    Maximum length

    Maximum capacitance

    Operating temperature

     

    1000 m

    80 nF

    -20 to +50 °C (-4 to 122 °F)

     

    Maximum input voltage

    100 VRMS

     

    Fault detection

    Line shorted, line interrupted

     

    Fault reporting

    By amplifier

     

    Reliability

     

    MTBF (extrapolated from calculated MTBF of PRA-AD608)

    5.000.000 h

     

    Environmental

     

    Climatic conditions

     

    Temperature Operating

    Storage and transport

    -5 to +50 °C (23 to 122 °F)

    -30 to +70 °C (-22 to 158 °F)

     

    Humidity (non condensing)

    5 to 95 %

     

    Air pressure (operating)

    560 to 1070 hPa

     

    Altitude (operating)

    -500 to +5000 m (-1640 to 16404 ft)

     

    Climatic conditions       

     

    Vibration (operating)

    Amplitude

    Acceleration

     

    < 0.7 mm

    < 2 G

    Bump (transport)

    < 10 G

    Mechanical

    Enclosure

    Dimensions (WxHxD)

    Board shape

    Box shape

     

    78 x 60 x 16 mm (3.1 x 2.4 x 0.6 in)

    45 x 60 x 18 mm (1.8 x 2.4 x 0.7 in)

    Ingress protection

    IP30

    Case

    Material

    Color

     

    Plastic

    RAL3000

    Weight

    25 g (0.055 lb)


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