IP public address system

Main PA Server 1. A/B system Main server can choose active/standby hot backup 2. A/B active / standby IP amplifier hot backup 3. The speaker cable is connected to the spare power amplifier. The main power amplifier works normally. When the main amplifier fails, it will automatically switch to the backup amplifier. 4. All amplifiers are IP amplifiers, can play different audio sources at the same time. 5. The Console and the main / backup IP amplifiers are automatically connected to the A/B main server, and when the A server fails, it will automatically switch to B server. 6. PA linkage box can be customized to connect with third-party systems through RJ45/dry contact, audio source/RS485 Modbus RTU/ModbusTCP//RS232 and other protocols to linkage broadcasting function. 7. The beacon control box supports that when the broadcast is started, the beacon turned on, and when the broadcast is ended, the beason are turned off automatically. 8. A single smart speaker uses the original audio cable for self-detection and report the speaker state to console. 9. The speaker line loop automatically detects and reports failures. Even if the speaker line is cut, the remaining speakers can continue to work normally