AP 2702 with power injector AIR-PWRINJ5=

[lpesantes]

Team,

Need a a technical support that says that the AP 2702 works fine with the power injector 5, eventhough in the datasheet the power injector recommended is the power injector 4. I have tested it, and works okey.

Thnks!

[Sandeep Choudhary]

Hi,

As per datasheet:

There is mentioned PWRINJ=4,this Will give us 3x4 MIMO with three Spatial Streams Speed."While PWRINJ=5 can also support the Cisco Aironet Series 2700 Access Points when you don't want to use 802.11ac, it is recommended to use the AIR-PWRINJ4= power injector instead for the 2700 series, as it has sufficient power to supply to the AP and to use 802.11ac data rates.

AIR-PWRINJ5= The power injectors provide up to 15.4 W

So final conclusion is:

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The answer is yes for power injector 4 (AIR-PWRINJ4=), you will get 3x4 with power injector 4.  However you cannot get 3x4 with power injector 5 (AIR-PWRINJ5=), because power injector 5 is designed to provide 802.3af power only, you will only get 3x3 in this case

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More info here:

http://www.cisco.com/c/en/us/td/docs/wireless/technology/apdeploy/8-0/Cisco_Aironet_3700AP.html

Regards

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[lpesantes]

Thnks!

how is performance affected using either 3x3 or 3x4 MIMO?

[Sandeep Choudhary]

Hi,

Please check this to understand the affect on performance due to MIMO capabilities.

https://documentation.meraki.com/MR/WiFi_Basics_and_Best_Practices/Wireless_Throughput_Calculations_and_Limitations

https://meraki.cisco.com/blog/2011/02/mimo-why-multiple-antennas-matter/

Regards

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