Solution topology diagram
Equipment composition
The system includes an UPS power supply, DVD/MP3 player (primary/backup), pre-amplifier, audio delay unit, network audio capture, power amplifier (primary/backup), power amplifier switcher, and hearing backup speakers with voltage backup.
Five Backup Modes
Audio BackupEquipped with two DVD/MP3 players, one primary and one backup.
Link BackupThe IP network transmission link and the fixed-pressure transmission link serve as backups for each other. During the exam, both network audio and fixed-pressure audio are transmitted simultaneously.
Power Amplifier BackupEquipped with two fixed-pressure power amplifiers, one primary and one backup. The main and backup power amplifier switch automatically switches to the other output when it detects any abnormality in either amplifier.
Power BackupEquipped with an UPS power system, automatically switches to backup power during power outages.
Receive backupClassroom speakers with fixed-pressure backup receiver function, automatically switch to fixed-pressure receiver mode when detecting network disconnection or power outage.
