Broadband connection / TV, radio, LAN in every room?

Unfortunately, I am an absolute layman regarding the above-mentioned topic and quite uncertain:

We are currently building our house, which will be supplied with a broadband connection from KEVAG-Telekom (TV, radio, internet, telephone). I assume that the house connection will be in the utility room (house without a basement).

The following connection should be possible in every living room:

- TV / radio

- LAN

- broadband modem (or do I only need that in the utility room?)

The construction work includes that all living rooms will get a Cat 6 network cable (10 megabit to 1 gigabit), which are installed star-shaped to a room of choice (probably the utility room).

Do I need any other cables in a room besides the Cat 6 network cable to have TV, radio, and internet LAN connections there, e.g., a separate LAN cable?

Which special "connection sockets" should I have installed in the rooms?

I kindly ask for clear explanations. I am no longer young and have no knowledge of the matter.

Thank you very much!
Gotthilf

Many roads lead to Rome. You should consult your trusted electrician and have them offer solutions.

The router is placed in the utility room at the Telekom connection. This router then connects to a switch, from which network cables run in a star topology to every room. This would cover the network.

How you distribute TV and radio should be explained by the provider, as there are different options. Often, a separate receiver is required for each endpoint, but there are also other solutions. At a glance, it seemed like normal cable TV with KEVAG. In that case, solutions that transmit the signal over the network might also work.

The construction work includes that all living rooms receive a Cat 6 network cable (10 megabit to 1 gigabit)

We had CAT7 cables installed in all rooms. I believe the additional cost is still manageable. However, CAT6 is certainly more than sufficient for TV and radio. If the sockets are present in all living rooms, TV and radio are also possible there.

"Broadband modem (or do I only need that in the utility room?)"
=> That is an alternative to the cables mentioned above. If the house is not particularly large, a router from a central point can broadcast the signal throughout the entire house. Then one modem is enough; otherwise, you can plug so-called repeaters (signal amplifiers) into free power sockets for little money.

It's also partly a matter of personal opinion. If you want to avoid radiation inside the house (the radiation from outside for mobile networks etc. will probably still come in, unless the house is specially shielded), you connect everything to the LAN sockets with a cable. If you can live with the radiation inside and outside, a router/modem in the utility room is sufficient. Then you probably don’t need the LAN sockets. Although in the past, the transmission capacity via cable was usually higher than via wireless network (WLAN).

I think having LAN sockets in every room is already good. However, I would always take a double socket with 2 cables. It costs more but also offers more possibilities. A LAN socket centrally on every floor is also good to be able to set up an access point (WLAN distributor). This is done when the WLAN from the utility room is no longer sufficient.

Unfortunately, I only know about cable TV from a distance. But if I’m not completely wrong, the cabling is similar to SAT. This means coaxial cables from every TV to the utility room where the cable connection is. It is best to discuss the exact possibilities with the electrician.

Sounds reasonable so far. Combine LAN in the utility room and plan a network cabinet there. I also find LAN double sockets important, especially where there might be a TV. Then you are completely independent of cables. Furthermore, more and more devices will be online in the future.

"Broadband modem (or do I only need this in the utility room?)" => This is an alternative to the cables mentioned above. If the house is not extremely large, a router from a central point can broadcast the signal throughout the house. Then one modem is enough; otherwise, you can plug so-called repeaters (signal amplifiers) into free power outlets for little money.

Here Traumfänger seems to have confused something. The broadband modem does not necessarily have anything to do with WLAN. No matter what the device is eventually called (modem, router, Connect-Box(tm)), you receive an "internet reception device" from the internet provider, which you should ideally connect in the utility room. This device comes with a cable to the switch, which then can distribute the signal to all connections in the house. Often, the device can also provide a wireless network (WLAN) for mobile devices. In smaller houses, this is often enough to cover all rooms. If that is not sufficient, please DO NOT use the mentioned repeaters. These make the WLAN unnecessarily slow. Instead, it is better to connect an access point (in a strategically advantageous location in the house) by cable to the aforementioned switch.