[4142] in North American Network Operators' Group

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Re: MAE-East still no generator

daemon@ATHENA.MIT.EDU (Peter Lothberg)
Sun Sep 8 05:35:37 1996

Date: Sun, 8 Sep 96 11:29:05 MET DST
From: Peter Lothberg <roll@Stupi.SE>
To: Avi Freedman <freedman@netaxs.com>
Cc: loco@isi.net, nathan@netrail.net, nanog@merit.edu
In-Reply-To: Your message of Sun, 8 Sep 1996 05:05:57 -0400 (EDT)

> > So, what's the fuzz here?
> > 
> > (Don't you all use -48Vdc in telco pops?)
> > 
> > --Peter
> 
> The fuzz is that most people use AC supplies in their CSUs and routers.
> My best guess would be that it's so that they could move those boxes
> out of the telco environement (if needed) and run them on AC.

You can swap the PS in any cisco box, on some models you don't even
need a screw driver.

As someone already pointed out, it takes half the components to do 
UPS -48V than UPS 110V/230V.

Where I live the comercial power is more reliable than the small 
UPS boxes, so the lesson is, UPS'es has to come in pairs..


--Peter


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