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paulstelian97 t1_iy4d4of wrote

Reply to comment by SummitWanderer in can you run an ethernet cable through an empty conduit in your house on your own? by VanillianArt

Do make sure that you don't make your cable TOO long, especially if you care about fast links (10Gbps, though 1Gbps and 100Mbps can be affected too).

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trashyratchet t1_iy4ehj6 wrote

It's pretty tough to make an ethernet run TOO long in a normal residential application. Even Cat5e max recommendation is 100 meters with about 5ns propagation loss per meter. Even in a very large home, 30m or so is about as long as you would typically see.

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paulstelian97 t1_iy4en3n wrote

Yeah you probably need some sort of yard and connecting buildings for that to matter.

The max for 10Gbps is probably shorter.

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trashyratchet t1_iy4f60r wrote

Its actually the same 100m recommendation, just with Cat6a.

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EtherCJ t1_iy4dq2h wrote

Although when you are talking "too long" here you mean WAY too long. Like an extra unnecessary 40 feet. Having an extra 4 feet is no issue.

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paulstelian97 t1_iy4dw64 wrote

A good quality cable can carry 1Gbps over some 80-100 meters. Splice it and you reduce the maximum significantly (as low as 20 meters before it slows down and maybe 40-50 meters before it fails completely)

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Angdrambor t1_iy4f1ib wrote

I didn't even realize you could splice cat6

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paulstelian97 t1_iy4fdec wrote

In my house everything is twisted pair (up to the GPON). I've seen some splicing done because we wouldn't redo the wiring, and it was fine (15 meters or so, 100Mbps). Now I have proper unspliced Gigabit links.

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paulstelian97 t1_iy4gnds wrote

You can splice basically any cable. The splice WILL negatively affect the signal so it's a game of whether you can afford that

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SummitWanderer t1_iy4ef91 wrote

Agreed, though I will say to date I've never had 1GbE impacted significantly by length and I've surpassed the max many times. Definitely depends on the existing environment.

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paulstelian97 t1_iy4eitx wrote

If you prevent external interference in some other way you can break the rule I guess.

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