8 Zones Voice Evacuation System Extension Controller

8 Zones Voice Evacuation System Extension Controller NVS-50020508EV

Voice Evacuation System

Voice Evacuation System

FEATURES

  • With one-key alarm and two editable alarm voices; with EMC MIC for on-site guidance in emergencies.
  • Built-in EVAC voice message and Chimes management, real-time monitoring.
  • Built-in 500W digital power amplifier, and can be connected to a standby amplifier simultaneously, backup automatically.
  • 8 zones with A & B circuit output, independent switch and volume control with master volume and treble and bass adjustment for each zone; each zone can output 500W, the total power of 8 zones ≤ 500W.
  • 6 external inputs, including 2 differential inputs, 4 non-parallel inputs for background music playback; 1-channel output to connect extender or backup records.
  • Support built-in audio playback (mp3, wav)
  • Support extended zones for extended equipment, supporting up to 160 zones.
  • Support automatic playback and timing function, fixed time and area playback, and unattended function.
  • 8 trigger inputs (dry contacts and electrical level optional); 8 dry contacts trigger outputs, 8 24V override outputs.
  • Support computer remote detection and control, audio priority setting, operation record view and impedance testing parameters setting.
  • Support speaker line detection (grounding, open circuit, short circuit), and system detection (extended equipment, off-line MIC).
  • Support AC power supply and DC 24V power supply, can automatically identify and switch, and detect AC, DC power connection and warn; AC power supply is usually the main power supply.
  • Dial-up code setting, system equipment general detection / trigger mode configuration / host IP address selection / host IP address reset option / speaker loop calibration modeling.
  • Support system failure, emergency output, emergency reset input.
  • Equipment working status display: work/ fault /normal.
  • External SD card interface, which can expand 8G storage space; external audio source, recording, log, built-in EVAC voice, etc.
  • With monitoring function, built-in recording function, built-in timing programming function, which can regularly program dry contacts to control power sequencer switch.
  • Can output dual audio simultaneously to ensure background playback is not affected by emergency or business broadcast.
SPECIFICATIONS

Model

 NVS-50020508EV

Rated Output Power

≥500W(100V)

Input sensitivity

Line

1000mV 10kΩ

Harmonic Distortion

Line

<1% 1kHz

Frequency response

Line

50Hz-18kHz(±3dB)

 Signal to noise ratio

Line

>80dB(A weighting)

System
connection
control
contact
output/input

System fault relay output

Short circuit, no voltage

Emergency mode relay output

Short circuit, no voltage

Fire reset input

Short circuit, t?0.5S, no voltage

8 channel dry contact output

Short circuit, no voltage

8 dry contact
input

Short circuit

Short circuit input, no voltage

Level mode

3.3V~24V

Working Power

AC

AC 220V/50Hz

DC

DC 24V/30A

Package Size(L*W*H)

550×510×215mm

Machine size (L*W*H)

483×420×132mm

G.W.

13.3Kg

N.W.

11.75Kg

Part Number Description Standard Quantity

NVS-50020508EV

8 Zones Voice Evacuation System

1 No.