TERMINOLOGY
For Minuteman UPS, Uninterruptible Power Supply Products
Stand-By: (sometimes called "off-line")
With this type of power
supply, power comes directly from the A/C Outlet until the voltage sags or
the power fails. After the power sags or fails, a battery powered inverter
almost immediately turns on to continue to supply you with power. Batteries
are charged as necessary when direct A/C power is available. Even while
power is coming directly from the A/C outlet, the UPS provides protection
from voltage spikes and surges. Standby units are the low cost solution in
the UPS family. The EN Series is a stand-by UPS system.
Applications: Small to large PCs, Phone Key Systems, and Workstations.
Line-Interactive:
Just like the
standby units, line-interactive UPSs provide protection from spikes and
surges, as well as, supplying auxiliary power if a voltage sag or a blackout
occurs. Unlike the standby units, line-interactive UPSs provide automatic
voltage boost when the power dips, without accessing the batteries. This
feature provides continuous line conditioning, promotes longer battery life,
and eliminates electronic "noise" that can cause minor application errors
and loss of data. The Enterprise, EnterprisePlus, ETR and PRO-E Series are
line-interactive.
Applications: Small to large PCs, Key and PBX Systems, Servers, Phone
Systems, Networking Equipment, Rackmount Servers and Workstations.
On-Line:
On-line UPSs provide the
highest quality of power protection by using a double-conversion technique.
The UPS takes the incoming A/C power and recreates it by converting the
voltage to D/C then conditioning the power to eliminate noise, sags, or
surges and finally converting it back to A/C before it exits the UPS. Since
the power runs continuously through the inverter, there is no transfer or
switching time to battery mode in the event of a blackout.
Applications: Workstations, PBX Systems, Network Servers, Internetworking,
Telecom Equipment, Phone Systems. |
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