ᐅ Planning Electrical Systems for Future-Proofing

Created on: 2 Nov 2021 12:37
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exto1791
Hello everyone,

In about three weeks, we are supposed to finalize our electrical planning on site. Unfortunately, our electrician is somewhat old-fashioned, which makes it difficult for me to collaboratively plan a future-proof electrical setup with him. Therefore, I am currently educating myself to ensure that the networking in our single-family home is fundamentally future-proof.

Basically, it’s about the LAN network... LAN wall outlets are relatively expensive, so proper planning is even more important.

About us:

- Mid to late 20s – couple without children. Planning for 2 children in the near future.
- Single-family house with a usable basement, 2 full floors, and fully equipped with concrete ceilings
- Utility room in the basement with air-to-water heat pump, ventilation system, photovoltaic system
- The router is planned to be located in the office on the ground floor
- The upper floor includes bathroom / bedroom / 2 children’s rooms
- No satellite dish or cable TV — we will use Internet TV exclusively!

Now, I am struggling to network our single-family home sensibly but as cost-effectively as possible.

I have the following questions:

1. Slightly off-topic: In the living room, I would like to have an in-wall conduit installed on the TV wall (the TV will be wall-mounted) so that no cables are visible. Is this sensible and affordable? I will get exact prices from my electrician if this makes sense at all. Would it also make sense to install power outlets at TV height? How do you plan the connections on your media wall reasonably? What should be considered?

Since we plan to use a Magenta TV box and thus IP-TV, a total of four LAN ports in the living room area would presumably be useful, right?

2. How many LAN outlets and especially where should LAN outlets be installed? Mainly: which cable? Is CAT6 sufficient?
→ Such a double LAN outlet certainly costs close to €200, so planning must be really sensible.
Is it really necessary to install 2 double LAN outlets in each children’s room? I always wonder: what is actually going to be plugged in there?
One port for the TV and one port for a multimedia device should be enough, right? So four connections would probably be overkill, correct?

The fact is: It will certainly take years or decades before our children actually use these outlets... Who knows what changes might happen by then? Therefore, could we not cost-effectively use empty conduits (empty pipes) instead?

Is it also possible to “branch off” from an existing double outlet afterward to add more ports for the room? What should be considered here? Or should we consider having an empty conduit prepared in another spot in the room so that a socket can be installed later?

3. How do you solve the “router problem”? Should the one router be placed in the office (ground floor) with LAN outlets in the existing bedrooms upstairs to ensure a stable LAN connection? Or is a router upstairs absolutely necessary?

4. How important are LAN outlets in the utility room? Should the router possibly even be located in the utility room? Because of the concrete ceiling between basement and ground floor, a second router would almost certainly be needed. How should this situation be handled with a basement?

5. What do you think about installing empty conduits for CAT cables in the kitchen / hallway etc. to enable later retrofitting? Is this relatively affordable in new builds?

I would appreciate any feedback so we can make the best possible plans 🙂
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Reggert
19 Feb 2023 10:57
4-minute rule...

Oh, and make sure the internal bandwidth is sufficient. I’ve seen 8-port switches with only 3 Gbps internal bandwidth... that probably exists for 24-port models as well... it wouldn’t make much sense if all ports support 24 Gbps but the internal bandwidth is so limited.
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fromthisplace
19 Feb 2023 11:20
Thanks for your detailed and critical feedback, Araknis, and thanks for the specific recommendation and experience, Reggert. 🙂
Araknis schrieb:

I would also consider which access points you want to use. Ubiquiti or TP-Link offer Unifi and Omada systems, which are easy to install and can be managed as a whole.
I have the Ubiquiti NanoHDs on my list. However, I’m not set on them. They have been recommended several times here, and I like their look.

SFP/UP-Link:
Araknis schrieb:

So this is not really suitable for Fritzbox (definitely not, since you probably don’t have internet faster than 1 Gbit/s) or NAS, unless you run out of remaining ports. As I said, from SFP+ there is something faster, otherwise it’s only 1 Gbit like the rest.
Can it be summed up like this: If the 24 regular ports are more than enough for me, I don’t need an SFP/UP-Link?
Araknis schrieb:

If you rely on gut feeling here, you didn’t really get it. Do you want VLANs or routing between VLANs on the switch? Do you need STP, for example, for Sonos? Of course, a managed switch isn’t a disadvantage, even if you don’t need the features. It’s just generally more expensive. Usually, they just run as unmanaged switches out of the box.
By "gut feeling" I meant I read up on the functions and quickly realized we don’t need them, unless you see an essential benefit here. Sorry for the unclear wording. VLAN, for example, is like using a sledgehammer to crack a nut on our home network. I want to use Sonos at some point for the TV and the turntable, but that can easily wait another 2-3 years.
Reggert schrieb:

With switches, you just have to make sure the PoE standard matches your access points, and yes, usually the ports share the available PoE budget.

I’ll post my selection shortly. Could you keep an eye on whether they match the NanoHDs?
Reggert schrieb:

As an affordable 24-port switch, I can only recommend the gs1900-24hp because I have the smaller one at home (8hp), they’re cheap used, and despite the old interface, they run forever...

I have the successor model (?) on my list. It is coming now. 🙂
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fromthisplace
19 Feb 2023 11:30
Here is my initial selection, including name/model/features and price. Unfortunately, links cannot be posted here:

1. ZyXEL GS1900-24EP, 24 ports with 12 PoE+ 130W, smart/managed, €259
2. ZyXEL GS1915-24EP, 24 PoE ports 130W, smart/managed, €299
3. TP-Link TL-SG1428PE, 28 ports with 24 PoE, 250W, smart/managed, €277
4. Netgear GS324TP, 24 ports all PoE, smart/managed, 190W, €319
5. Netgear GS324PP, 24 ports all PoE, smart/managed, 380W, €325
6. YuanLey, 24 ports all PoE, unmanaged, 400W, €249
7. YuanLey, 26 ports with 24 PoE, 400W, unmanaged, €170

From your perspective, is there a clear favorite for my application or any models I should rule out? The YuanLey options were shop recommendations and seem very affordable. Should I exclude these? Do you have another favorite that is not on this list?
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fromthisplace
19 Feb 2023 12:24
fromthisplace schrieb:

5. Netgear GS324PP 24 ports, all 24 PoE, smart/managed, 380 W, 325 €
This one is unmanaged. Unfortunately, I can no longer correct it above.

All are PoE+.
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Reggert
19 Feb 2023 14:03
It might be helpful to know which access points you have chosen so we can check if they support these features 🙂

I THINK managed ones are better because they include IGMP and similar functions. Otherwise, your network might get overloaded by broadcasts, causing it to slow down since the devices don’t know where to send data.
Multicast avoids this problem because it knows exactly where the data should go.
Note: this is just basic knowledge; I chose managed access points mainly because the price difference was small.

In general, when it comes to switches, you can also buy used ones that are a bit cheaper... the average lifespan of switches is 100,000 to 300,000 hours, so you’ll probably replace them yourself before then anyway 😉
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fromthisplace
19 Feb 2023 14:11
I would like to use the Ubiquiti NanoHD.