6140 electrical question

[Ryan Sawyer]

In our data center we are in the process of transitioning one of our existing racks from 110V/3PH power to 208V/3PH power for a future UCS installation.  Currently, there is 110V equipment running within the rack.  Before that equipment is decomissioned and moved though, a 6140 fabric interconnect must be installed and configured in the same rack.  I noticed that the 6140 is rated for 110-240V power, so I can easily rack it anytime...

But, my question is this:  During the cutover process to 208V power in the rack, can the 6140 survive on split 110/208V power across both of its power supplies?  (In other words, PSU #1 receives 110V in and PSU #2 receives 208V in.)

I ask because, if possible, I would like to do this so I can keep the 6140 powered up and in service during the entire electrical cutover process.

Thanks in advance for any help provided.  Much appreciated!

~Ryan Sawyer

[rewilkin]

Please reference the link below to see if this answers your question.

http://www.cisco.com/assets/cdc_content_elements/flash/dataCenter/cisco_ucs_power_calculator/

Sent from Cisco Technical Support iPad App

[Ryan Sawyer]

From Cisco TAC:

"Since the power supplies are autosensing this will not be an issue.  I would do it during a maintenance window just in case something does go wrong.
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/switch/install/techspec.html"