[c-nsp] Cat 6509 Power supplies

Dale Shaw dale.shaw+cisco-nsp at gmail.com
Tue May 26 18:46:19 EDT 2009

Hi Bill,

On Wed, May 27, 2009 at 3:51 AM, Bill Blackford
<BBlackford at nwresd.k12.or.us> wrote:
> I have a question about power supplies.
> I am upgrading a 6509 chassis from SuP1/MFSC2 to a pair of SUP720-3BXL's, fan and new power supplies. I originally spec'd a pair of 4000W units. Now as we know, these can only support NEMA L6-30, vs. the variable power supplies such as the 3000W. I've run out of L6-30R's in my data center as our new rack PDU's are of this spec. I may need to use 110V NEMA 5-20 plugs.
> Can the 3000W power supply (in redundant mode) support a fully populated 6509 chassis (no POE) when using 110VAC?

I've only had a passing glance at your message, so apologies if this
isn't helpful, but have you had a look at the Power Calculator tool?



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