9120 series AP - what does "professional installations" mean ?

[Sanyika64]

There are many SKUs in 9120 list, like C9120AXI-x, C9120AXE-x 

and C9120AXP-x which is stated as "Cisco Catalyst 9120AXP Access Point: Indoor, professional installations"

What is the difference between 

C9120AXI-x  and C9120AXP-x ? 

[marce1000]

    - Yes , I think so is you look at Table 2 in https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9120ax-series-access-points/datasheet-c78-742115.html . there is a clear difference with the  9120AXI ,  designed for internal use without antennas, the P model needs an antenna apparently (high gain)

 M.

[Leo Laohoo]

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@ozzie-adams wrote:
Can the 9120AXP be used for indoor use without antennas? 

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With antenna, 9120AXP can only be used, legally, outdoors.

Without an antenna a 9120AXP will not be able to broadcast any SSID.

[Tony Rosolek]

With such long racks and heigh ceilings you can also look into 13dBi antennas. 

Either the new Cisco: https://www.cisco.com/c/en/us/td/docs/wireless/antenna/installation/guide/ant2513p4mn.html or following AccelTex antenna: https://www.acceltex.com/shop/2-4-5-ghz-13-dbi-4-element-indoor-outdoor-patch-antenna-with-n-style/