[132852] in North American Network Operators' Group
Re: Want to move to all 208V for server racks
daemon@ATHENA.MIT.EDU (Jay Ashworth)
Thu Dec 2 11:36:04 2010
Date: Thu, 2 Dec 2010 11:32:16 -0500 (EST)
From: Jay Ashworth <jra@baylink.com>
To: Ingo Flaschberger <if@xip.at>
In-Reply-To: <alpine.LFD.2.00.1012021720220.2841@filebunker.xip.at>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
No, I'm pretty sure he means "across the 2 high legs of a 120/208 3ph
Wye service", and I'd never heard that idea suggested before. I can see
why it reduces the amount of copper you need to run, but it seems as if
it would have compensating disadvantages, though I can't think precisely
what they might be at the moment.
-- jra
----- Original Message -----
> From: "Ingo Flaschberger" <if@xip.at>
> To: "Jay Nakamura" <zeusdadog@gmail.com>
> Cc: "NANOG" <nanog@nanog.org>
> Sent: Thursday, December 2, 2010 11:22:32 AM
> Subject: Re: Want to move to all 208V for server racks
> Dear Jay,
>
>
> > I really want to move all newly installed internal and customer
> > racks
> > over to all 208v power instead of 120v. As far as I can remember, I
> > can't remember any server/switch/router or any other equipment that
> > didn't run on 208v AC. (Other than you may need a different cable)
> > Anyone have any experience where some oddball equipment that
> > couldn't
> > do 208v and regret going 208v? We won't have any TDM or SONET
> > equipment, all Ethernet switches, routers and servers. I have
> > control
> > over internal equipment but sometimes customers surprises you.
>
> you mean 240V AC 50HZ and move from 120V 60Hz? (or also 50Hz)
>
> you will need to check each device if it supports 240V, commonly the
> specified power ratings are printed at a stricker on the device
> itself.
>
> Kind regards,
> Ingo Flaschberger
