Switches comparison

[tinhnho123]

Hello Everyone,

I was looking at WS-C2960S-48FPS-L (740 Watts) and  WS-C2960S-48LPS-L (340 Watts) models today, I'm not sure that I understand it right,

Does WS-C2960S-48FPS-L model support all 48 ports POE+ (30Watts)? Does that mean each port will get 30 Watts on this switch?

Does model WS-C2960S-48LPS-L support 24 ports with POE and 24 ports with POE+?

Thanks.

[Gregory Snipes · Accepted solution]

The 2960Ss pool the POE, you need to look at the total POE power available.

The 48FPS has 740 of POE power available which is enough to give every port 15.4w (class 3 POE), if you plug in a 30w (class 4) device you pull 30w out of the pool and have 710w left. If you plug in 24 30w devices you will have used all of the available power and have none left for any other ports to supply. You can mix and match all day as long as the total POE draw does not exceed 740w.

The 48LPS works the same way just sub in 370w in your calculations. It has enough capacity to supply 15.4w to 24 of the ports or 7.5w to all of them.

Hope this helps,

Greg

[tinhnho123]

Thanks a lot. Last question, do you know where we can find these manuals for these 2 switches? I googled around but couldn't find any specific one for these models.

[Gregory Snipes · Accepted solution]

Cisco does not have manuals per say. They have datasheets, command referances, getting started guides, ect... They are generaly specific to a line of switches not a single model. And the command referance is for the IOS version not the hardware platform.

Here is the datasheet

here is the command referance

and here is the getting started guide

The best way to find these items is just to seach the Cisco website. It is an amazing technical resource but you have to be very specific with what you are looking for when you search.

Regards,

Greg

[Leo Laohoo]

Between the numbers "48" and the "-L" are a series of codes.

"P" stands for PoE support or PoE-capable switch;

"F" stands for FULL-power (PoE) to all ports.  You will only see the "F" in 48-port switches.  This means that the switch can push 15.4w PoE to all 48-port switch.

"L" means "lite" PoE.  First-come-first-serve-until-power-runs-out.