We run lasers on UPSs. They just need to be big enough. I think we use APC
2200s for each one.
Generators are a pain, especially for a small application like that, and you
STILL need something to cover the startup time of the genny. We have a 48Kw
here and it takes 12-16 seconds to start. The UPS keep everything up in the

Ira Chandler, PCI QIR
CTO, Curbstone Corporation
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-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of
Jeff Crosby
Sent: Friday, January 17, 2020 3:35 PM
To: Midrange Systems Technical Discussion
Subject: UPS, generators and such


Our IBM i is in the cloud, so the UPS we have is now way oversized.
Liebert Nfinity installed in 2004. It's had batteries replaced, etc and
served us well during the 2-hour power outage yesterday. But seriously, we
don't need 180 minutes run time. :) I have a quote for a replacement.

I got to thinking about something yesterday. Even without power, if we had
a way for our laser printer(s) to work, we could have continued on our
merry way, though somewhat in the dark.

Laser printers should not/cannot be placed on a UPS due to power draw.
What about a portable generator? With the assurance that we have clean
power coming out of it. We wouldn't need EVERY laser printer running, just
one of them.

Anybody ever do this?


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