This basic home network diagram is a schematic representation of a home network. It assists you in planning your home network and determining its best configuration. However, they are also used in network documentation. The majority of network layouts are variations on a few basic network designs. This is the most fundamental home network diagram you can draw. Our ISP provided a router with a modem and an access point (Internet Service Provider). You can connect four devices to these routers using a network (ethernet) cable.