In ADSL router what does the figure 802.11 mean and what the letter next to it mean like 802.11n?

Answer 1

802.11 is a network connection standard. It is basically just a number given to a set of rules that all wireless networks must follow.

The suffix just tells you what generation it is. In other words, 802.11a was the first standard. Limited by transfer speed and range, this is now obsolete. 802.11n is the newest and has much faster transfer rates and a farther broadcast range.

There are other standards that are similar, such as 802.3 which is your standard wired network or 802.15.1 which is a standard for Bluetooth and other Personal networks.

Answer 2

802.11 is a standard used by Wi-Fi. You mainly use this to check if your laptop, psp or any devices supports this.

If you are using an 802.11n therefore your device has standards supported for 802.11n version, and as far as I know it is also backward compatible to devices that is mainly used for older standard such as 802.11b and 802.11g.

You can check out the link below for more info.

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