Descriptions:

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.

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 VA-6000ST, 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 information to the specified zones or open the coresposing external power to the corresponding 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 VA-6000BC).

Specifications:

VA-6000MS Front Panel <<

Connectors

1 19 inch rack location hole and machine foot.

2 Main power indicators:

(1) Off - stop working.

(2) Green - in normal power supply.

(3) Yellow - main power fault.

3 DC24V power indicator:

(1) Off - main power is not configured.

(2) Yellow - standby power supply fault.

(3) Green - standby power supply in normal.

4 Network status indicator:

(1) Yellow - disconnected from the network.

(2) Tgreen - network in normal.

5 The main amplifier 1~8 channel state indicator:

(1) Green - power amplifier work.

(2) Yellow - power amplifier fault.

(3) 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:

(1) Green - power amplifier work.

(2) Yellow - power amplifier fault.

(3) Red - the main amplifier fault, the duty of the current falut main power amplifier has shifted to the standby power amplifier.

VA-6000MS Back Panel <<

Connectors

1 8 parallel signal and audio power amplifier sleep signal output interfaces ,connecting to external amplifier signal input .

2 8 local parallel audio signal input interfaces, connecting to external parallel audio signal output device.

3 1~8 partition audio power signal output, connecting to external speaker or a three / four wire voice control box.

4 Standby power amplifier audio signal output.

5 Backup audio power signal input.

6 CAN bus interface, connecting to external VA-6000BC.

7 8 programmable trigger signal input ( level signal or short-circuit no voltage signal input).

8 8 programmable relay output signal.

9 Network interface.

10 Backup power supply input interface connecting to external VA-6000BC DC power supply output.

11 Chassis ground (Note: please ensure the reliable grounding).

12 Power supply switch.