[c-nsp] Cisco RPS for 3550 switch

[Daniel Suchy]

Hello,

On 10/01/2007 06:07 PM, TCIS List Acct wrote:
> I've reviewed various threads in the archive, and see where others have had 
> problems with the RPS-300's allowing fall-back to the internal A/C power supply 
> after it has taken over on the DC source.  Was this an IOS issue, a hardware 
> issue with the switch and/or RPS, or ?

It's a switch/hardware issue.

> Also, I keep seeing this warning in the docs:
> 
> "The Catalyst 3550 switch and the Cisco RPS 300 or RPS 675 should be connected 
> to the same AC power source."

I had never problems with this - I always used RPS for redundancy (using 
splitted power feeds).

> We had planned to power the internal source from one PDU, and the RPS from 
> another PDU (both PDUs are fed by the same UPS source, but we wanted to guard 
> against a PDU failure).  What is the real issue here -- and am I asking for 
> trouble by ignoring this warning?

PDU's between doesn't play any role here in terms of power source, if 
you have same UPS for both power feeds.

> 
> TIA.

BR,
Daniel