Bosch PRAESENSA System controller - Controls a System with up to 250 Devices and up to 500 Zones

PRA-SCL - Overview

• Features:

  • System control and audio routing
  • Capability to control a system with up to 250 devices, serving more than 500 zones.
  • Native support for switched single-subnet networks, with add-on support for routed multi-subnet topologies.
  • Dynamic allocation of multiple and simultaneous audio channels to save on network bandwidth; audio connections are created when a call or a message is broadcast, and freed up immediately afterwards.
  • Secure interconnections using Advanced Encryption Standard (AES128) for audio data and Transport Layer Security (TLS) for control data.
  • Receiver for Dante or AES67 audio channels from external sources, with dynamic re-routing to open or secure OMNEO channels.
  • Internal storage capacity for messages and tones; up to eight messages can be played back simultaneously.
  • Internal real time clock for scheduled events and event time stamping; support for Network Time Protocol (NTP) with automatic adjustment for Daylight Saving Time (DST).
  • Internal system event and fault event log.
  • Networked control interface for third party applications.
  • Built-in webserver for configuration and file management using a browser.
  • Dual redundant system controller option for highest system availability in mission-critical applications.
   

• Specifications:

  • 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: 1000
    - Fault events: 1000
    - General events: 1000
  • Real Time Clock:
    - Accuracy (with NTP): < 1 s/yr off
    - Accuracy (no NTP): < 11 min/yr off
    - Daylight Saving Time (DST): Automatic
    - Backup battery: 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: 250 (Single Subnet)
    - Zones - Web Server/Browser
    
    
  • Power transfer
  • Power supply input A/B
    - Input voltage range: 24 to 48 VDC
    - Input voltage tolerance: 20 to 60 VDC
  • Power consumption (24 V)
    - Duty mode: 3.9 W
    - Per active port: 0.4 W
    
    Supervision
  • Run fault (watchdog reset): All processors
  • System integrity
    - Fault report time < 100 s
  • Site specific data integrity
    - Fault report time: < 1 hour
    - Supervised message storage: 90 min
  • Power supply input A/B: Undervoltage
    
    Network interface
  • Ethernet: 100BASE-TX, 1000BASE-T
  • Protocol: TCP/IP
  • Redundancy: RSTP
  • Audio/control protocol: OMNEO
  • Network audio latency: 10 ms
  • Audio data encryption: AES128
  • Control data security: TLS
  • Ports: 5
    
    Reliability
  • MTBF (extrapolated from calculated MTBF of PRA-AD608): 1.000.000 h
    
    Environmental
  • Operating Temperature: 23 to 122°F
  • Storage and Transport Temperature: -22 to 158°F
  • Humidity(Non Condensing): 5 to 95%
  • Air Pressure (Operating): 560 to 1070 hPa
  • Altitude (Operating): -1640 to 16404 Ft
    
    Enclosure
  • Dimensions (With Mounting Bracket): 19 x 1.75 x 15.7 In (WxHxD)
  • Case Material: Steel
  • Case Color: RAL9017
  • Frame Material: Zamak
  • Frame Color: RAL9022HR
  • Weight: 12.8 lb
   

• Item Includes:

  • 1x System controller
  • 1x Set of 19"-rack mounting brackets (pre-mounted)
  • 1x Set of screw connectors and cables
  • 1x Quick Installation Guide
  • 1x Safety information
   

• GTIN:

  0800549825900