Digital Addressable Fire Alarm System With 8 Channel Changeover
VA-6000MS 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.
1 2U chassis design, high integrated, modularization;
2 support speaker circuit grounding, open circuit and short circuit detection;
3 support 3/4 wire horn circuit wiring;
4.8 programmable trigger input interfaces;
5.8 programmable trigger output interfaces;
6 support power-saving mode when the amplifier has not input signal enters
7 support lines redundance wiring;
8 support linkage to fire alarm controller
Detail features:
1 main amplifier automatic backup switching power amplifier, real-time detection, indicate by different color LEDs;
2 real time monitoring speaker bus loop, power amplifier status, automatic control switch;
3 allows amplifier enter into power saving mode when no signal input to save energy (start through VA-6000ST, default disabled);
4 allows to configure the priority of network and local audio;
5 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;
6.8 stem node or wet node input port, to trigger the pre-pragrammed language information to the specified zones or open the coresposing external power to the corresponding event warning;
7.8 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;
8 provide DC 24V standby power input interface ( connect to 24V DC supplied by VA-6000BC);
AC power supply |
|
Voltage |
~ 230V,50/60Hz |
maximum current |
0.3 A(not including the 4 wire strong cut output) |
Specification of the fuse |
250V/1A,slow speed type |
DC power supply |
|
Voltage |
24V DC, ±20% |
maximum current |
2 A((not including the 4 wire strong cut output) |
Power |
48W |
performance index |
|
Parallel signal input / output |
|
Distortion |
<1%(rated output power),1kHz |
frequency |
80Hz~20kHz |
sensitivity |
385mV |
Impedance |
10kΩ |
SNR |
>70dB |
Contact output |
|
8 relay programmable output |
short circuit, no voltage |
8 programmable trigger input |
|
level model: |
The highest 3.3V |
Short circuit mode: |
no voltage, short circuit |
Cooling way |
air cooled |
Protection |
delay / temperature / short / overload |
Mechanical index |
|
The size (length x width x depth) |
484×88×447 mm(19 inches wide, 2U) |
The net weight |
about 7.8 kg |
Installation |
desktop or 19 inch cabinet |
color |
black |
Environmental requirements |
|
Environmental requirements
|
+5℃ ~ +40℃ |
Storage temperature |
-20℃ ~ +70℃ |
relative temperature |
<95%(no treatment) |
ITC Audiovisual is the pioneer of Chinese audiovisual industry. Latest, we launch Luna Cloud-based Public Address System. Also, we develop steadily. We provide our client with one-stop solution, such as conference system, video conferencing, professional sound system, multimedia central control system,IP System,Public Address System,Evacation System, etc. What's more, our system is applied to various world-class events, such as 2008 Peking Olympic Games, 2010 Shanghai Expo, 2010 Guangzhou Asian Games, etc. For now, we have up to 200 thousand successful cases in China and in worldwide.
Our products are complied with worldwide certificates:CCC,ISO9001,CE & RoHS.Parts of our product are complied with certificates:CB,SASO,ETL,UL,FCC,EN54-24.Parts of loudspeakers are certificated by waterproof,dustproof,fire-proof & explosion-proof.
By now, we have been successfully conducting both import and export activities worldwide for 10 years with suppliers and buyers.