nanog mailing list archives

Re: MAE-East still no generator


From: Peter Lothberg <roll () Stupi SE>
Date: Sun, 8 Sep 96 11:29:05 MET DST

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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