NV-EVAC-FAE-MS631

Descriptions:

NV-EVAC-FAE-MS631 changeover is an integrated controller supporting main and backup
amp swithing, speaker circuit grounding detection, open circuit and short circuit detection
compatible with three or four wire volume controller wiring, without extra wiring or power
supply; combining 8 programmable stem node or wet node trigger inputs and 8
programmable on-line output signal. It works with class D amplifiers, traditional amplifiers
to provid a safe, affordable solution to the PA & Voice Alarm system.

Features:

• 2U chassis design, high integrated, modularization.
• Support speaker circuit grounding, open circuit and short circuit detection.
• Support 3/4 wire horn circuit wiring.
• 8 programmable trigger input interfaces.
• 8 programmable trigger output interfaces.
• Support power-saving mode when the amplifier has not input signal enters.
• Support lines redundance wiring.
• Support linkage to fire alarm controller.

Basic Functions:

• Main amplifier automatic backup switching power amplifier, real-time detection,
indicate by different color LEDs.
• Real time monitoring speaker bus loop, power amplifier status, automatic control
switch.

• Allows amplifier enter into power saving mode when no signal input to save energy
(start through NV-EVAC-FAE-MS631, default disabled).
• Allows to configure the priority of network and local audio.
• Support power through, even if the main and standby power supply is cut off at the
same time (amplifier power supply normal), the local 8 audio signals are not affected.

• 8 stem node or wet node input port, to trigger the pre-pragrammed language infor-
mation to the specified zones or open the coresposing external power to the corre-
sponding event warning.

• 8 programmable relay signal output port, ouupt no voltage output short circuit relay
control signal to the third party equipment to realize on-line automatic control.
• Provide DC 24V standby power input interface ( connect to 24V DC supplied by
NV-EVAC-FAE-MS631

AC Power Supply
Voltage	~220-240V 50/60Hz
Maximum Current	0.3A (not including the 4 wire strong cut output)
Specification Of The Fuse	250V/2A, slow speed type
DC Power Supply
Voltage	24V DC, ±20%
Maximum Current	2A (not including the 4 wire strong cut output)
Power	48W
Performance Index
Parallel Signal Input / Output
Distortion	<1% (rated output power),1KHz
Frequency	80Hz~20KHzv
Sensitivity	385mV
Impedance	10KΩ
Contact Output
8 Relay Programmable Output	Short circuit, no voltage
8 ProgrammableTrigger Input	8 ProgrammableTrigger Input
Level Model	Highest 3.3V
Short Circuit Mode	No voltage, short circuit
Cooling Way	Air cooled
Protection	Delay / temperature / short / overload
Mechanical Index
Size (L x W x D)	484 x 88 x 447mm (19inch, 2U)
Weight	About 7.5kg
Installation	Desktop or 19 inch cabinet
Color	Black
Enviroment Requirement
Operation Temperature	+5oC~ +40oC
Storage Temperature	-20oC~ +70oC
Relative Temperature	<95%, (No condensation)

Front Panel Connectors:

1. 19 inch rack location hole and machine foot.
2 . Main power indicators:
– Off – stop working.
– Green – in normal power supply.
– Yellow – main power fault.
3. DC24V power indicator:
– Off – main power is not configured.
– Yellow – standby power supply fault.
– Green – standby power supply in normal.
4. Network status indicator:
– Yellow – disconnected from the network.
– Tgreen – network in normal.
5. The main amplifier 1~8 channel state indicator:
– Green – power amplifier work.
– Yellow – power amplifier fault.
– Red – the main amplifier fault, the duty of the current falut main power amplifier has shifted to
– the standby power amplifier.
6. 6 standby power amplifier work state description:
– Green – power amplifier work.
– Yellow – power amplifier fault.
– Red – the main amplifier fault, the duty of the current falut main power amplifier has shifted to
– the standby power amplifier.