Construction site inspection with electrician: network planning. I am afraid.

Dear forum,

Next week we have the shell inspection with the electrician scheduled and I want to give him as clear guidelines/requests as possible regarding the network planning. Since I only gained insight here thanks to the forum, but still seem to have a greater knowledge advantage than him, I would appreciate your feedback on a few open points or some reassurance.

Basically:
Since network is not his area, I would provide a 19" network cabinet, 19" power strip, and a 24-port patch panel and ask him to mount the cabinet, connect and ground the power strip and the patch panel, and bring together and label the installation cables at the patch panel. Is this basically reasonable and acceptable? Did I forget anything?

Unclear points:
1. The electrician's job is then to terminate the network cables in the rooms/ceilings in network sockets/keystone modules in the ceilings for the access points, right?
2. In the technical room, his task is to terminate the installation cables directly on the patch panel, right? Keystone modules don't make sense there, correct?
3. My task then, when everything is finished, is to connect from the connected patch panel with patch cables to the switch, right?
4. Currently, a total of four access points with PoE are planned. Do I need to consider anything regarding the patch panel/switch for this?
5. Cat 7 is the standard. I should mention this, right?
6. How many rack units for the network cabinet should I choose? The FritzBox is to be accommodated there as well. A NAS is not planned.

for 1: Correct, the electrician should do the connection. For the exit of the network cables from the ceiling for the access points, always provide a socket in which you can accommodate the keystone module and a short patch cable.
for 2: I would use keystone modules in the network cabinet as well. That way you can later reorganize the cables or if you want to change the cabinet, you don’t have a cumbersome patch panel with a huge amount of cables attached. It is important that the individual cables are measured and a protocol is given to you. You can get the rest of the parts yourself.
for 4: You don’t need to consider anything with the patch panel or keystone modules. For the switch, you need to look at the desired functionality and then select accordingly.
for 5: I still see CAT 7 as the standard. Much more important from my point of view is that you clarify with the electrician that the cables are laid in a way that they can be replaced. Nothing is more future-proof than a sufficiently dimensioned empty conduit.
for 6: You have to answer this for yourself, since we don’t know the size of your installation. In any case, provide a reserve and do not fill the cabinet to the brim right from the start.

You don’t have to be afraid of the whole thing. If you have an acquaintance who knows a bit more about networks, take them along.

What kind of internet connection will you get? DSL, cable, fiber optic? Is the connection then directly next to the network cabinet or somewhere else? Depending on that, you might need another cable there.

The usual way to power a network cabinet is with 2 surface-mounted sockets in or immediately below/next to the cabinet. Then you can plug in the connector of the 19" power strip yourself. Into this, small devices like routers and switches can be connected. Some recommend a small UPS or at least a surge-protected socket.

Patch panels should definitely be equipped with Keystone as already mentioned above.

A meaningful measurement protocol is hardly likely to be created by electricians who are not network-savvy, as they lack the necessary measuring devices, which are very expensive (around 5-10K), such as Fluke DSP or similar. Such electricians usually use a €10 tool to simply check the continuity of all wires. More is generally not required in private settings.

Regarding point 2: I would also use keystone modules in the network cabinet. That way you can rearrange the cables later, or if you want to replace the cabinet, you don’t have a stubborn patch panel with a huge amount of cables attached.

Wait, I’m stuck. I thought the installation cables are cut for the patch panel and then terminated at the back of the patch panel (see screenshots). How does it look in your proposed variant? Is the incoming keystone module simply clipped into a rail (photo 3)?

What kind of internet connection do you have? DSL, cable, fiber optic? Is the connection right next to the network cabinet or somewhere else? Depending on that, you might need another cable to there.

Thanks. For now DSL, fiber optic will follow next year. Will I then need an additional network cable from the phone connection to the network cabinet?

Such electricians usually take a €10 tool just to check the continuity of all wires. More is usually not required in the private sector.

But then the advantage of a paid service is lost. You might as well do it yourself.

Is the incoming keystone module simply clipped into a rail?

Correct. There are two possibilities when terminating network cables: keystone or LSA (as shown in the other two pictures).

Does another network cable have to run from the telephone connection to the network cabinet?

It all depends a bit on the local conditions. For DSL, I would put my first TAE socket directly next to the network cabinet. With fiber optic, you have to see. Either install an ONT (a socket is needed) and then connect to the router via network cable or directly connect the router via fiber optic. If everything is in the HAR, then the cables can be laid later on the surface.

Edit: I have found the "großen" Elektro-Thread again and will continue posting there.