Implement LAN and SAT in a single-family house with a central server cabinet

Hello everyone!

I have already looked around a bit in the forum here to get answers to my (partly more specific) questions about LAN/SAT in a single-family house. However, overall it didn’t really work out. Therefore, I would like to explain my concern here completely, in the hope of getting some answers to my detailed questions.

Key points:
I am currently planning the LAN/SAT cabling for our single-family house. The rest of the electrical work will be done by a professional. To save some money, I wanted to implement LAN and SAT myself.

Our single-family house has a ground floor, attic, a garage with workshop, and a small loft. We do not have a basement.
The LAN and SAT outlets should be generously distributed throughout the house and converge in the technical room on the ground floor.

Roughly, the whole thing should look like on the two attached pictures.
At the green connection points, one outlet each (LAN 2 ports, SAT 1 or 2 ports) will be installed. The red connection points initially only have the cable without an outlet and are intended for optional connections later on:


In total, the following number of connection points are planned throughout the house:

LAN - Ground floor: 12 connection points (5x with outlet (5x2 ports), 7x cable only)
LAN - Attic: 7 connection points (5x with outlet (5x2 ports), 2x cable only)
LAN - Total: 19 connection points (10x with outlet (10x2 ports), 9x cable only)

SAT - Ground floor: 5 connection points (3x with outlet (1x1 port, 1x2 ports), 2x cable only)
SAT - Attic: 4 connection points (4x with outlet (4x1 port))
SAT - Total: 9 connection points (7x with outlet (5x 1 port, 1x2 ports), 2x cable only)

All cabling should converge in the technical room and be housed in a server cabinet (19 inch, 12 U). This should preferably be recessed into the wall (then it would be on the other side below the stairs).

For LAN, I would use duplex CAT 7 installation cable Gigabit 10Gbit network cable 1000Mhz SFT.
For SAT, 135dB coaxial SAT cable antenna cable coaxial cable 4-fold shielded for DVB-S / S2 DVB-C and DVB-T BK.

All cables (19 duplex LAN = 38 connection points, including those initially lying in the wall on the other side) should then be connected via two 24-port patch panels and a 24-port switch to the Fritzbox (Internet).

From the SAT dish, I would go to a multiswitch (in the server cabinet) and from there to the SAT outlets in the house.

Questions:

[*]Does it all fit (2x24-port patch panels (2U), switch (1U), telephone system, SAT multiswitch + possibly 2nd switch + possibly NAS) sensibly into a 19-inch server cabinet with 12 U (it should not be unnecessarily cramped)? Or would perhaps even 9U be enough?
[*]Can the (currently) 47 (19x LAN duplex + 9 coax) cables be conveniently routed into the server cabinet?

[*]Is there a frame for the server cabinet on which I can mount the SAT distribution?

[*]Do I need to worry about overheating? The technical room contains the house connection, a washing machine, and a (condensation) dryer.

[*]Can I recess a 19-inch server cabinet with 12 U, which is actually intended for wall mounting, into the wall? I thought we could simply make a correspondingly large hole and the server cabinet would go through the wall and stick out on the other side (this would not be a problem because it would be under the stairs).
[*]How could I ground the entire system?
[*]Is laying the cables in a conduit really necessary? Does this variant really offer the possibility to replace the cables later or is it usually so difficult in reality that it is actually not an option (we are building with timber frame construction if that is important)?
[*]Would you possibly also install WLAN access points? If yes, where? I often read "in the ceiling," but I would rather not do that.
[*]Would you install any other outlets? Overall, I still have 10 ports free on the patch panels

I’ll try to answer some of the questions:

[*]A 9-unit cabinet might work, but it quickly becomes too cramped. Maybe someday a server will be added, devices that don't have a 19" form factor, or something else in the next 30 years. Better to get the bigger cabinet if possible.

[*]They will certainly fit in the cabinet, but maybe not comfortably. It also depends on the depth of the cabinets.
[*]I can't answer the satellite questions, but it seems oversized to me. Even the kitchen, workshop cellar, and even the pantry with satellite connection... does it really all have to be that way?

[*]With the empty conduits, it's a tricky thing; no idea what the future holds in 20 years. I consider exchanging the cables very unlikely. Personally, I would install empty conduits sparingly. Maybe as a compromise, only empty conduits up to the first floor, so in the distant future you can easier re-route from room to room.

[*]Access points: Absolutely do it, of course. Start with one central if that's enough, for example in your upstairs hallway. It doesn't have to be under the ceiling, completely indifferent. If that’s not enough, then add more. You'll notice once you live there. But there are enough free ports in every room anyway.
[*]Miscellaneous: Since you already have plenty of sockets everywhere, only the outdoor terrace is missing. If I were you, I would rather downsize to a patch panel.

Thank you for the feedback...

[*]A 9U cabinet could work, but it gets tight quickly. Maybe a server will be added someday, or devices that don't have a 19" form factor, or something else in the next 30 years. Better to get the larger cabinet if possible.

I have already planned for the NAS. It should be able to fit in the cabinet.

[*]I can't answer your satellite questions, but it seems oversized to me. Even kitchen, workshop basement, and even the pantry with satellite connection... does it really all need that?

Satellite is planned "only" in the kitchen. In the pantry there would only be LAN, but rather for the refrigerator from the back.

[*]Access points: Definitely a must, of course. Once centrally if that’s enough, so in your upstairs hallway. Doesn’t have to be under the ceiling, totally doesn’t matter. If that’s not enough then more. You’ll notice once you live there. But there are plenty of free ports in every room anyway.

I was thinking here of access points that I can install inside a wall box. Not a plug-in solution where a network cable is plugged in. Can I connect something like that directly to a structured cable?

[*]Others: Since you already have plenty of wall boxes everywhere, only the outdoor terrace is missing If I were you, I’d rather downsize to a patch panel.

Downsizing will be difficult. I probably won’t go below 25.
Apart from space in the server cabinet, I also don’t see a reason for that.
How is it with sockets in outdoor areas? Are there special ones? What does the security aspect look like here?

How about grounding and overheating?

I was thinking of access points that I can install in a socket. Not a plug-in solution where a network cable is then plugged in. Can’t I connect something like that directly to a patch cable?

There are flush-mounted access points. The ones I know, however, protrude several millimeters from the wall and are larger than normal sockets or light switches. But are they any good? I would be very happy to hear a review here.

Simply give sockets outdoors the same rights as guests in the WLAN. Or turn them off when not in use. That’s precisely the advantage of your elaborate installation, that you can use a cool switch with manageable ports. Or unplug it manually in winter.

I was thinking of access points that I can install in a wall box. Not a plug-in solution into which a network cable is plugged. Can't I connect something like that directly to a patch cable?

By plug-in solution, do you mean plugged into a socket? I would only connect an access point to the network cable and supply it via POE.

I have no experience with built-in access points. The ones I quickly googled, I would never use. For the price, there are also top access points. I use access points from Unifi. They hang on my ceiling because ceiling mounting provides the best radio signal propagation. If you install the network cable cleverly, it is not visible behind the access point. The power supply is via POE injector, or if you have more POE devices, you can use a POE switch.

Engaging is not optimal because you can only access it from the front.
You can also mount APs on the wall. Ceiling is better, though.
If you really want wall mounting, take a look at the Unifi Iw-hd. Here you would have access point and LAN connections together.
Does the technical room have an (oversized) controlled residential ventilation with supply and exhaust air?
Otherwise, I would seriously consider whether I would place the technology in a warm and humid room.
I would also think about an appropriate router and switch to work with VLANs.
I would also choose the cabinet in at least 12HE.
It fills up quickly there.