UPS and printer

  • Thread starter Thread starter mm
  • Start date Start date
M

mm

If I remember correctly when I was tryign to find out about using UPS
a couple of years ago, printers are not recommended to be connected to
the UPS because it draws a lot of power, right?

The monitor should be connected to UPS, right?

How about router? Use at least surge protector. My twin sister wants
to keeo the router far enough under her bed that the electrical cord
won't reach to the UPS that's kept under the desk.
 
Correct, printers generally should not be on UPS - they're not that
critical, anyway.

Monitor, yes - how else would you gracefully shut down during a power
outage?

Router, yes, if you need to keep some local network connectivity during
shutdown, or to prevent dropouts during short power blips. You could use a
short extension cord to reach from the router to the UPS.


If I remember correctly when I was tryign to find out about using UPS
a couple of years ago, printers are not recommended to be connected to
the UPS because it draws a lot of power, right?

The monitor should be connected to UPS, right?

How about router? Use at least surge protector. My twin sister wants
to keeo the router far enough under her bed that the electrical cord
won't reach to the UPS that's kept under the desk.
 
mm said:
If I remember correctly when I was tryign to find out about using UPS
a couple of years ago, printers are not recommended to be connected to
the UPS because it draws a lot of power, right?

The monitor should be connected to UPS, right?

How about router? Use at least surge protector. My twin sister wants
to keeo the router far enough under her bed that the electrical cord
won't reach to the UPS that's kept under the desk.
Click to expand...

Connecting a printer to a UPS is a good way to kill the UPS battery quickly.
There's a huge draw when the printer turns on, and you can always restart
the print job.

Monitors can and should be, particularly if they are LCD monitors. If the
power goes down, you need to be able to save your work immediately. If the
monitor is CRT, you have less time, and should save open files, close
applications, and shut off the system on power down. Don't walk away from
the system without saving.

Routers and modems should be on UPS devices to protect them and ensure
uninterrupted connections. If possible, they should also be in places
where there's ventilation - they do generate some heat, so does the adapter,
and this can cause problems with them. They can, in a word, cook. Use
a good extension cord, but not a surge suppressor, from the UPS to the
router and modem and put them somewhere cool. Or, put the router and modem
on another UPS. They are fairly low-power devices and you can use a very
small-capacity UPS for them.

HTH
-pk
 
If I remember correctly when I was tryign to find out about using UPS
a couple of years ago, printers are not recommended to be connected to
the UPS because it draws a lot of power, right?

The monitor should be connected to UPS, right?

How about router? Use at least surge protector. My twin sister wants
to keeo the router far enough under her bed that the electrical cord
won't reach to the UPS that's kept under the desk.
Click to expand...

Wrong on some points. UPS typically connects appliances directly to
AC mains when not in battery backup mode. UPS battery is completely
disconnected from appliance except when in battery backup mode. So
what is the problem? UPS power when in battery backup mode is often
so 'dirty' as to even harm some small electric motors. Why is this
'dirty' power acceptable to computers? Computers are some of the most
robust appliances in the house.

For example, this 120 volt UPS outputs two 200 volt square waves
with a spike of up to 270 volts between those square waves. Is this
clean power? It is where myths are promoted. But this electricity is
so dirty as to be harmful to some small electric motors AND harmful to
a power strip protector.

Does that UPS provide surge protection? If so, then the manufacture
spec sheet lists each type of surge and protection for that surge.
Notice it really makes no surge protection claim. Even worse, its
joules are so small as to be near zero. Does it have surge
protection? Yes. Even near zero protection is enough to claim surge
protection on sales brochures. But did you look at the numbers? Most
who claim a UPS provides surge protection never look as spec numbers
and would not know what to look for.

UPS (not to be confused with building wide UPSes that do those other
functions) is only for data protection from blackouts and extreme
brownouts. It does not even claim to protect from the type of surge
that typically causes damage. Who else posts tech numbers or cites
manufacturer spec sheets - also provided reasons why. Some of those
recommendations are classic urban myth. Quite popular myth that
exists when manufacturer numbers are ignored.

What would be on a UPS? Anything that is necessary to save data
before shutting down. UPS will only have enough power to perform
shutdown procedures - which is its purpose. Even electricity output
in battery backup mode is some of the 'dirtiest' that most appliances
will ever see.
 
UPS's are emergency power backups
when you unexpectedly loose electricity.

UPS's will give you enough power
for an emergency power down of
your system. Without it, your open
files, documents and windows would
crash with a sudden lost of power.

If you get a UPS, your options
when the alarm notifies that
you are on emergency power is
to begin saving all your work and
powerdown the PC or set the alarm to
automatically run "Hibernation".

--

db ·´¯`·.¸. said:
<)))º>·´¯`·.¸. , . .·´¯`·.. ><)))º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><)))º>
Click to expand...


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