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PRA-EOL

PRA-EOL

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The Bosch PRA-EOL supervises each PRAESENSA loudspeaker line to its end without extra wiring, as EN 54-16 line integrity monitoring requires. Scroll down for details.

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  • Brand - BOSCH
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BOSCH
BOSCH

Global leader in Public Address, Voice Evacuation and Conference Systems.

Bosch PRAESENSA public address and voice alarm system: operator at a reception desk with the PRA-CSLD call station Bosch, Invented for life

IP-connected and fully-featured

PRAESENSA Public Address and Voice Alarm System

PRAESENSA system components

PRA-EOL PRAESENSA End-of-Line Device

Supervises each loudspeaker line to its end without extra wiring, as EN 54-16 line integrity requires.

  • Line Supervision
  • No Extra Wiring
  • EN 54-16 Compliant
PRA-EOL

 

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


Key specs

  • Loudspeaker line supervision to the end of line
  • No extra wiring, powered from the line
  • Works with PRA-AD604, PRA-AD608 and PRA-AR616
  • EN 54-16 / ISO 7240-16 compliant

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)