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New Member

Powering AP's via POE switch or injector

Hi,

Could anyone please advise if there is any difference in the power supplied to a 1142N AP when using a power injector (AIR-PWRINJ3/AIR-PWRINJ4) compared to using poe on the switch port (2960S 24 port POE switch WS-C2960S-24PS-L).

Thanks.

5 REPLIES
Hall of Fame Super Silver

Powering AP's via POE switch or injector

There is no difference, they both will power up the AP... it just depending on how many devices you plan on powering up on the switch.  So take a look at the power supply and you can figure out how many PoE devices you can power up.

-Scott
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New Member

Powering AP's via POE switch or injector

Thanks Scott, not looking to power much devices, 2 or 3 at most, but someone once advised that in order to get full N potential from the AP's you need injectors. I take it this is not the case.

Hall of Fame Super Silver

Re: Powering AP's via POE switch or injector

No... The only AP that required more power was the 1252, which you could still power up one radio at full power or have both radios witht eh 5ghz at a reduced level.  The 1140's which you have will work fine on the 2960.

-Scott
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Hall of Fame Super Gold

Powering AP's via POE switch or injector

but someone once advised that in order to get full N potential from the AP's you need injectors.

Someone got their facts wrong.

If I was to get the full potential with N, I'd look to plug the WAP into a GigabitEthernet port.  PoE or Injector won't make any difference.

New Member

Re: Powering AP's via POE switch or injector

Thanks a lot guys.

Sent from Cisco Technical Support iPhone App

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