Cisco 3925 Power cutover one by one

[Jerry Jiang]

Hi all,

good day.

Recently I've connected two power cords of one Cisco 3925 to two power sockets on wall due to UPS issue -- downtime happened. I was thinking once the UPS got fixed and sent back is it possible to connect  one power cord back to UPS and then the other one without any downtime? or I have to shut down the router to do that?  Thank you in advance.

Jerry

[Philip D'Ath]

Correct.

I often connect one power supply to the UPS and one to a non-UPS power socket.  That way you are covered for the eventual event of the UPS failing.

[Jerry Jiang]

Hi Philip，

Thanks for your prompt reply.  : )

Let me clarify my question a little bit -- When I get the fixed UPS, will I experience downtime if I disconnect one power cord from non-UPS power socket and then connect it to UPS? --- During this action, only one power cord connects to power.

[Philip D'Ath · Accepted solution]

Correct, no downtime.

[Jerry Jiang]

Thank you, Philip.

[pwwiddicombe · Accepted solution]

I have even used this capability to reroute and clean up power cables to devices - but DO check that the other one you AREN'T moving is live and that both power supplies are in good shape before doing the reconnection to your UPS.

[Jerry Jiang]

Thanks mate, well noted.