HP PowerTrust A3589A, Manual

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Chapter 1 1-5
Overview
Terms Used in this Manual
Terms Used in this Manual
This section contains definitions of words and phrases that are used throughout this
manual.
automatic bypass Internal circuitry that detects a failure in the UPS's internal
AC power path and bypasses the faulty circuitry so that AC
input continues to supply power to the connected equipment.
Automatic Bypass
mode
The condition the UPS is in after it detects a problem with its own
circuitry. For more detailed information about this mode, refer to
“UPS Modes”.
Battery Box A rack-mounted unit containing ten battery packs. The Battery Box
is connected to the Electronics Unit with a cable integrated into the
Battery Box.
battery pack A sealed removable unit containing a rechargeable battery.
Bypass Unit See Service Bypass Unit.
control panel The front panel of the Electronics Unit. Also called the front panel.
See Figure 1-2.
Electronics Unit A rack-mounted unit containing the electronic components of the
PowerTrust UPS.
front panel The front panel of the Electronics Unit. Also called the control
panel.
hold-up time The amount of time that the UPS will maintain AC power to the
connected equipment after the external AC power has failed or been
removed. This is about 15 minutes when the batteries within the
UPS are fully charged and the unit is powering its rated load. If the
UPS is powering less than its rated load, the unit's hold-up time is
longer.
On-battery mode The state of the UPS when it is supplying AC power from its
batteries to the connected equipment. For a more complete
description of this mode, refer to “UPS Modes”.
On-line mode The state of the UPS when normal voltage to the system load is
supplied through the
Electronics Unit by the AC input power source.
For more information, see “UPS Modes”.
overtemperature A high temperature condition, sensed within the UPS.
Power Distribution
Unit (PDU) A power strip within the expansion cabinet containing receptacles
for the device(s) to be protected by the UPS. Both the
factory-integrated and field-integrated versions of the PowerTrust
UPS must be used with a UPS-compatible PDU.