Apple AirPort Extreme 802.11n (1st Generation) - Manual (Page 11)

Chapter 2 AirPort Extreme Networks 11
Using AirPort Extreme with Your Broadband Internet Service
When you set up AirPort Extreme to provide network and Internet access, Macintosh
computers with AirPort and AirPort Extreme Cards, and 802.11a, 802.11b, 802.11g, and
IEEE 802.11n draft specification wireless-equipped computers can access the wireless
AirPort network to share files, play games, and use Internet applications like web
browsers and email applications.
It looks like this:
DSL or cable modem Internet WAN port
to Internet
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