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LiaoChiaNan
LiaoChiaNan
New Member
June 16, 2020
Question

Does Forti AP U431F Support 4x4 MU-MIMO

  • June 16, 2020
  • 1 reply
  • 10378 views

HI~ According to https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/fortiap-u-series.pdf  FortiAP U431F FAP-U431F Indoor Wireless Universal AP - Tri radio (2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO and 1x 802.11 a/b/g/n/ac Wave 2, 2x2 MU-MIMO)

 

Does that means FAP-U431F only support 2x2 MU-MIMO at Radio3 ? Radio 1 and Radio 2 only support SU-MIMO ? Thank you~

    1 reply

    Toshi_Esumi
    SuperUser
    Toshi_Esumi
    SuperUser
    June 16, 2020

    My understanding based on the  spec sheet is the same for your first question. But I don't understand your second question. MU-MIMO or SU-MIMO is generaly only on AP side. Clients wouldn't be affected by that. Or are you asking if it supports clients with 802.11n capability? Then of course yes. That's why "n" is listed in.

    LiaoChiaNan
    LiaoChiaNanAuthor
    New Member
    June 17, 2020

    Hi  Toshi Esumi :

    Refer to the spec

    FortiAP U431F FAP-U431F Indoor Wireless Universal AP - Tri radio (2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO and 1x 802.11 a/b/g/n/ac Wave 2, 2x2 MU-MIMO)

     

    FAP-U431F has 3 radio.

     

    radio1 and radio2

    2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO

     

    radio3

    1x 802.11 a/b/g/n/ac Wave 2, 2x2 MU-MIMO 

     

     

     

    What i want to ask is :

     

    radio1 and radio2

    2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO  

     

    that means 4x4 MU-MIMO or 4x4 SU-MIMO ?

     

    thank you~

    Toshi_Esumi
    SuperUser
    Toshi_Esumi
    SuperUser
    June 17, 2020

    The 802.11ax standard includes two-way or downlink+uplink MU-MIMO while 802.11ac does only downlink MU-MIMO. SU-MIMO is before Wave2, or 802.11n (Wi-Fi 4) and before. 

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