If you want to set up a local network, Ethernet cables are always the first choice - they enable fast data transfer and are inexpensive to purchase. According to the Ethernet specification, however, they can be a maximum of 100 meters long. Several segments can be connected with each other via active components (switches), but they each need their own power supply, which cannot always be implemented.
In such cases, the G.hn standard is a simple and inexpensive way to achieve more. It enables a gigabit connection (sum of download + upload) via coax cable up to about 800 meters and via twisted pair up to about 250 meters. The connectivity is given up to approx. 1800 or 800 meters. Symmetrical data rates are possible.