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1. PC power interface
2. Projector power interface
3. Backup National standard
3-plug power interface
4. Total input power
5. Backup National standard 2-plug power interface
1. Microphone on/off switch
2. PC on/off switch
3. Projector on/off switch
4. IC card slot
5. Volume adjustment knob
6. Video switch knob
7. TV box control knob
8. RS485 interface
9. Backup power supply
10. Run code module
2.23 Function of Controller box power interface
2.31 Control Panel types
2.32 “Small Ears” Control Panel function
2.3 Control Panel function analysis
V01 LCD Screen Control Panel
V02 Knob Control Panel
V03 “Small Ears” Control Panel
