Combining or "Daisy-Chaining" - Multiple Devices, Part 1

By now it should be obvious that you'll need to interconnect all of the basic functional WiFi network component modules in order to aggregate the required functionality. As we've already stated, if you were to obtain single-function boxes for all of the basic functions, you'd need to hook them all to one another like this:
WiFi Distribution in 5 Separate Modules
That basic, logical flow (ISP Connection, Modem, Router, Ethernet Switch, WiFi Access Point) is retained regardless of whether the functional lines are contained within separate network boxes, or in a single box, and regardless of the names that manufacturers apply to their various boxes.

Commencing at the ISP connection, here's an example of that same functionality housed in 2 separate boxes:
WiFi NOC in 2 boxes, version 1

Modem, Router, and Ethernet Switch
2- Wireless Access Point.

Here's an implementation of the identical WiFi distribution architechture in 3 boxes:
WiFi Distribution Setup in 3 Boxes

2- Router and Ethernet Switch
3- Wireless Access Point