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1.        Auto / Manual Charging operation      

2.        Ammeter     

3.        Main power indicator

4.        Charge indicator

5.        battery full charge indicator

6.        on/off switch          

7.        240V fuse

8.        External Sound Timer Controller

9.        Battery  12V (ensure that connected in right terminal +---+, - --- -)

10.      Main input AC 240V

11.      To External Sound Amplifier

12.      To Internal Sound Amplifier

13.      Reset Circuit Breaker – Reset over current protector

Function:

-         To provide continuous power to sound amplifier in case there’s a blackout

-         To charge the backup battery

-         To control the operating time of the external sound amplifier