American Power Conversion 750XL - Manual (Page 6)

4
2: O
PERATION
S MART -UPS F RONT P ANEL
Power On
Power Off
Load Battery Charge
Online The online LED illuminates when the UPS is supplying utility power to the con-
nected equipment. If the LED is not lit, the UPS is either not turned ON, or is sup-
plying battery power.
AVR Trim
This LED illuminates to indicate the UPS is compensating for a high utility voltage.