topic Powering AP's via POE switch or injector in Wireless

Powering AP's via POE switch or injector

jodamus112 — Sun, 04 Jul 2021 04:38:35 GMT

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.

Powering AP's via POE switch or injector

Scott Fella — Thu, 23 Feb 2012 12:36:49 GMT

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.

Powering AP's via POE switch or injector

jodamus112 — Thu, 23 Feb 2012 13:46:29 GMT

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.

Re: Powering AP's via POE switch or injector

Scott Fella — Thu, 23 Feb 2012 13:55:40 GMT

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.

Powering AP's via POE switch or injector

Leo Laohoo — Thu, 23 Feb 2012 23:06:15 GMT

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.

Re: Powering AP's via POE switch or injector

jodamus112 — Fri, 24 Feb 2012 06:59:31 GMT

Thanks a lot guys.

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