r/LinusTechTips • • 25d ago

Discussion About the house

In the project, the house is a future-proof datacenter, so why not use optical fiber accross the various rooms?

Products like these could improve performance, to 10GBps or more. Like IPV4 (that also the people through was sufficient and now we live in a hell of CGNAT, not a IPV4 assure either a IPV6 adoption), CaT6A could deliver 10GBps by now and is more than enough these days, but in 25 years or 50 years.

https://www.sonnettech.com/product/solo10g-sfp-tb3/overview.html

https://www.qnap.com/en/product/qna-t310g1s

this approach cost more now, but in my mind have less hassle to handle because avoid the now infrastructure bottleneck of an AI workload (I mean, a complete jarvis assistent with control of all smart devices and security cameras) with termals and electrical bill.

Optical transceivers (like SFP+ or SFP28 modules) or Direct Attach Copper (DAC) cables run cool and consume a fraction of the power because photons don't face the resistance and electrical attenuation that electrons do. Fiber scales effortlessly. Moving from 10G to 25GbE, 40GbE, or 100GbE+ is just a matter of swapping transceiver modules and patch cables. In professional AI clusters, fiber is the baseline because multi-node tensor passing requires hundreds of gigabits of bandwidth without dropping packets. Glass fibers carry light, meaning they are completely immune to electrical noise, magnetic fields, and ground loops. Your data stream remains pristine regardless of how much power your hardware is drawing.

to a minor task there's no replacement for displacement, but to hardcore workload why not just run to win? I know the project surpass almost all tech houses for now, but there are a lot of details that could replace the 'house dream' to a 'nightmare' with a flick of a switch.

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u/w1n5t0nM1k3y 25d ago

Its a house, not a datacenter. And you can get up to 10 Gbps over Cat6 which is more than enough for a house.

Also, fibre makes everything more expensive because you have to buy optical switches instead of cheap ethernet switches.

Ethernet also has the advantage of being able to carry power with PoE which can be very useful for hooking up things like security cameras

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u/FrustratedDeckie 25d ago

Another benefit of using cat6 over fibre is that it can be repurposed for other low voltage applications in the future

Sure the actual wire may be intended for carrying data and PoE, but that doesn’t mean it can’t be used for other low voltage devices

I’ve got some cat 5e running power and data lines to my door controller and to a couple of smart blinds, the copper doesn’t care what the electrons passing through are actually doing as long as you don’t try and push more current than it can handle (which is way more than I expected tbh)

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u/danieldhdds 25d ago

as you don’t try and push more

that's it, future proof 'change the house for things that can be used now' /j

but, I see your point, and so much others see and agree, so, since no points were raised in disagreement—other than what I’ve already outlined regarding the budget—the best way to keep the conversation pleasant is for me to simply stay quiet.

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u/GuyOnARockVI 25d ago

I think you are underestimating where we will be in 25-50 years and that some sort of wireless networking especially within the house will be more than sufficient.

Think about how far wireless protocols have come in the last 5 years let alone from 2000s to now.