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PRA-SCL

Bosch PRA-SCL System controller, large, Full control of PRAESENSA devices and audio routing, Built‑in supervised storage for messages and tone files, Support for Dante audio input and output streams, Open interface to third party applications, IP‑networked on OMNEO for audio and control, Network‑connected, DC‑powered, system controller and message manager for Public Address and Voice Alarm applications, Tone/message playback (dynamic) OMNEO channels: 8, Audio inputs (static) Dante or AES67 channels: 120, Audio outputs (static) Dante channels: 8, IP30.

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    Key Features

    * Full control of PRAESENSA devices and audio routing.

    * Built‑in supervised storage for messages and tone files.

    * Support for Dante audio input and output streams.

    * Open interface to third party applications.

    * IP‑networked on OMNEO for audio and control

    Technical Specifications

    Electrical

    Control

    Audio routing (dynamic)

      OMNEO channels

     

    Unlimited

    Tone/message playback (dynamic)

      OMNEO channels

     

    8

    Audio inputs (static)

      Dante or AES67 channels

     

    120

    Audio outputs (static) Dante channels

    8

    Logging

    (internal storage) Call events

    Fault events

    General events

     

    1000

    1000

    1000

    Real Time Clock

    Accuracy (with NTP)

    Accuracy (no NTP)

    Daylight Saving Time (DST)

    Backup battery

     

    < 1 s/yr off

    < 11 min/yr off

    Automatic

    CR2032 Lithium cell

    Message/tone storage capacity

      Mono, uncompressed, 48 kHz, 16‑bit

     

    90 min

    SD card size

    1 to 32 GB

    System size

    Networked devices

    Zones

     

    250 (single subnet)

    500

     

    Configuration

    Web server/browser

     

    Power transfer

     

    Power supply input A/B

      Input voltage range

      Input voltage tolerance

     

    24 to 48 VDC

    20 to 60 VDC

     

    Power consumption (24 V)

      Duty mode

      Per active port

     

    3.9 W

    0.4 W

     

    Supervision

     

    Run fault (watchdog reset)

    All processors

     

    System integrity

      Fault report time

     

    < 100 s

     

    Site specific data integrity

    Fault report time

    Supervised message storage

     

    < 1 hour

    90 min

     

    Power supply input A/B

    Undervoltage

     

    Network interface

     

    Ethernet

    Protocol

    Redundancy

    100BASE‑TX, 1000BASE‑T

    TCP/IP

    RSTP

     

    Audio/control protocol

      Network audio latency

      Audio data encryption

      Control data security

    OMNEO

    10 ms

    AES128

    TLS

     

    Ports

    5

     

    Reliability

     

    MTBF (extrapolated from calculated MTBF of PRA-AD608)

    1.000.000 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)

     

    Vibration (operating)

      Amplitude

      Acceleration

     

    < 0.7 mm

    < 2 G

     

    Bump (transport)

    < 10 G

     

    Mechanical

     

    Enclosure

     

    Dimensions (WxHxD)

      With mounting brackets

      Rack unit

     

    483 x 44 x 400 mm (19 x 1.75 x 15.7 in)

    19 in, 1U

     

    Ingress protection

    IP30

     

    Case

      Material

      Color

     

    Steel

    RAL9017

     

    Frame

      Material

      Color

     

    Zamak

    RAL9022HR

     

    Weight

    5.8 kg (12.8 lb)

     

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