Annotated edit history of
UPS version 4 showing authors affecting page license.
View with all changes included.
| Rev |
Author |
# |
Line |
| 1 |
PerryLorier |
1 |
[Acronym] for __U__ninterruptable __P__ower __S__upply. |
| |
|
2 |
|
| 4 |
AristotlePagaltzis |
3 |
Roughly speaking, this is a big battery that will run your computer for a short time when the power goes out. It isn’t usually large enough to maintain power to the computer for an extended length of time (hours) (unless your money:IQ ratio is too high, or, like [zcat | BruceKingsbury], you've been given four perfectly OK 21-plate truck batteries, which he says should sustain 12 hours of standby power, even with the screen on). It is there to handle short power outages (<10 minutes) and then allow the machine to shut down cleanly. |
| 1 |
PerryLorier |
4 |
|
| 4 |
AristotlePagaltzis |
5 |
There are two major types: |
| 2 |
zcat(1) |
6 |
|
| 4 |
AristotlePagaltzis |
7 |
* Online [UPS] is constantly charging the battery from the mains and at the same time drawing power from the battery to run the computer(s). |
| |
|
8 |
* Offline [UPS] keeps a charged battery around to switch it inline when the power drops below a certain level. |
| |
|
9 |
|
| |
|
10 |
Online [UPS] will therefore isolate your computer from any power spikes or brownouts, whereas offline [UPS] usually protects it against brownouts but hardly from spikes. |
| 3 |
JohnMcPherson |
11 |
|
| |
|
12 |
---- |
| |
|
13 |
See also [UPSNotes] |
