Front Panel Indicators And Audio Alarms; Line Status Indicator (Green); On Battery Indicator (Yellow) - Compaq Pro UPS 500 Operation And Reference Manual

3-10 Compaq Pro UPS 500 Operation and Reference Guide

Front Panel Indicators and Audio Alarms

LINE STATUS Indicator (Green)

ON BATTERY Indicator (Yellow)

The front panel indicators signal the status of the UPS.
The LINE STATUS indicator illuminates whenever the UPS is connected to
acceptable AC utility line power.
While the UPS is in the ON mode, the LINE STATUS indicator will remain
constantly illuminated to indicate that battery backup is enabled and will be
available at the Battery-and-Surge-Protected receptacles in the event of a
blackout or brownout.
While the UPS is in the STANDBY mode, this indicator will flash (and an
alarm will sound once per minute) to indicate that battery backup is disabled
and will not be available at the Battery-and-Surge-Protected receptacles in the
event of a blackout or brownout. The alarm can be silenced by momentarily
pressing the TEST/ALARM RESET button.
NOTE: If the UPS is disconnected from utility power, the UPS will return to the mode (ON
or STANDBY) the UPS was in when power was lost.
The ON BATTERY indicator illuminates whenever the UPS is operating from
internal battery. After 10 seconds of continuous battery operation, an audio
alarm will sound consisting of 4 short beeps, followed by an 8-second pause.
The alarm can be silenced by momentarily pressing the TEST/ALARM
RESET button. When the battery is nearly depleted, the ON BATTERY and
BATTERY LOW/REPLACE indicators will both be illuminated and the alarm
will resume (and cannot be silenced) to alert the user to immediately shut
down connected equipment.