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51033211EN/AC - Page 31
6. Appendices
6.1 Glossary
Authorized voltage Upper and lower voltage thresholds within which the UPS can operate
range for transfer to on the automatic bypass in the event of a UPS fault or overload.
bypass if fault or overload
Automatic bypass Automatic switch controlled by the UPS, used to connect the equipment
directly to the AC-power source.
Automatic start following When AC input power returns following shutdown at the end of the battery
return of AC input power backup time, UPS automatic start can be enabled or disabled.
Backup time Time that the connected equipment can operate on battery power.
Bargraph Device on the front panel indicating the percent remaining backup time
or the percent load.
Battery test Internal UPS test on battery status.
CLA (Long backup- Module incorporating a charger for long backup times. The charger is powerful
time charger) enough to charge battery extension modules offering very long backup times.
Cold start See "Start on battery power".
Connection module Unit grouping the receptacles for connection to the AC-power source
and the equipment.
Dialog box A window in a computer program displayed for selection by the user of various
options and parameter settings.
Double conversion The power supplied to the connected equipment is completely regenerated
by continuous double conversion, i.e. the AC power from the AC-power source
is rectified (AC - DC), then converted back (DC - AC) to AC power.
Equipment Devices or systems connected to the UPS output.
Fault tolerant Connection module (without manual bypass) offering receptacles
for connection to the AC-power source and the equipment.
Forced shutdown Allows a "clean" of computer operating systems depending on the low battery
threshold setting. If the input source is restored during the time period
between the shutdown order and actual system shutdown, it causes a
voluntary interruption of the supply of power to the connected equipment
(lasting 10 seconds) after system shutdown.