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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)