MGE UPS Systems 3000 VA - Manual (Page 19)

51033211EN/AC - Page 19
3. Operation
3.1 ON-LINE operating mode
This is the normal operating mode for the UPS.
Two possible cases:
LED is ON: AC input power is available. Power is drawn
from the distribution system and supplied to the protected
equipment via the UPS.
LED is ON: AC input power is not available. Power is drawn
from the battery and supplied to the protected equipment.
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bypass
bypass