RPS 2300 - can I eliminate 'power supply' item?

Answered Question
Oct 25th, 2007

Folks, imagine that I want to provide fault tolerance in case my 3750 power supply fail. I don't need batteries in the RPS 2300 because I will provide UPS separetely in the rack.

Can you confirm I can eliminate item (b)outlined below, correct? I think so, but I just want to make sure that the RPS 2300 can operate without such power supply item.

a.(1)PWRRPS2300 Cisco Redundant Power System 2300 and Blower,No Power Supply

b.(2) Catalyst 3750E/3560E 1150WAC power supply

c.(2) AC Power cord, 16AWG 2 CABRPS2300

RPS 2300 Cable for Devices other than

I have this problem too.
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Correct Answer by Edison Ortiz about 9 years 1 month ago

The switch needs an internal power supply to operate.

RPS, as implied, should be used for emergency and it's a 'redundant' power supply.

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Correct Answer
Edison Ortiz Thu, 10/25/2007 - 15:50

The switch needs an internal power supply to operate.

RPS, as implied, should be used for emergency and it's a 'redundant' power supply.

news2010a Thu, 10/25/2007 - 17:43

This is what people explained to me, correct me if I am wrong,please:

Imagine the RPS 2300 is connected to a common power recepticle.

Now let's imagine the power supply in the switch 3750 dies.

Since my RPS 2300 is receiving power (no batteries here), the switch could now draw powre from the RPS 2300. That said, not necessarily I would need those batteries in the RPS2300 to keep my 3750 running, correct?

In my case the RPS2300 will be connected to big UPS, and therefore the RPS2300 will be powered on for a while.

news2010a Fri, 10/26/2007 - 12:43

Never mind with my stupid question. The 1150W AC power is not a battery. It is just the same power supply the Cat 3750 uses.

Thanks.

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