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Ilya2019-11-17 16:37:59
Computer networks
Ilya, 2019-11-17 16:37:59

Will 350 meters of twisted pair work?

I'm building a network. It won’t work to use switches, it won’t work to build a wireless bridge either

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10 answer(s)
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Vladimir Korotenko, 2019-11-17
@granta1337

100 meters standard, then the lottery.
https://nag.ru/articles/article/23464/100-metrov-e...

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Andrey Gavrilov, 2019-11-17
@thexaver

Optical fiber?

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MR27, 2019-11-17
@MR27

1) Optics are not expensive these days.
2) There are Etherner repeaters for your case. Including powered by POE, that is, from the local network itself.

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Alexey Kharchenko, 2019-11-17
@AVX

This is already for xDSL technologies. Even less than 100m does not always pull 100Mbps normally, you have to translate by 10. And up to 150m it really works on some setevushka, but it still depends on interference and other conditions.
So - a pair of zyxel 791 and a speed of 2.3Mbps, or something like that. But for them, a twisted pair cable is not necessary - even ordinary noodles will work. Well, or from quite antiquity - megabit modem 300S (or a couple of 310-320) - you can already have a completely worthless line, and on snot and with oxides and whatever - it still works. Plus, you don’t need to configure them at all (it works like an ethernet bridge), the speed is up to 2Mbps.
If the cable has not yet been laid, it does not need to be laid. Immediately optics, if speed is important. No - you can save money and throw one pair (there are 4 pairs in a normal wi-fi, the modem needs one).

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Newbie2, 2019-11-17
@Newbie2

There are poe-extenders, you can easily throw 500 meters on them, provided that there is no PoE load at the end.

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CityCat4, 2019-11-17
@CityCat4

There is a small chance that 10Mb will start - do you need it? 150 meters sometimes penetrate some network cards. Either repeaters or optics. Well, or as already advised xDSL - but it's meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

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res2001, 2019-11-17
@res2001

Often, even 100 meters, set by the standard, do not give widespread desktop adapters from realtek and marvel. There is also a large part of the built-in network adapters.
More than 100 meters are kept by Intels and Broadcoms. Moreover, they should be on both sides of the cable, preferably the same model. But even they will not pull 350 without additional intermediate equipment.

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Stanislav Bodrov, 2019-11-18
@jenki

Will 350 meters of twisted pair work?
Which ethernet is thick or thin? Thick punch. Thin would be good to overcome 120-130 on the current skinny cables.

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Alexander Grigorchuk, 2019-11-28
@Stiper12

Subscriber <-100m-> hub PoE power from subscriber <-100m-> hub PoE power from server <-100m-> Server. This is if life is boring.
And it’s better to buy 2 VDSL modems I tried it myself The ZYXEL P-871M modem has a small run-up in reception

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Homeser, 2019-12-12
@Homeser

The standard from 2017 states no more than 80 m. cable length and cat6 in the inner lining.
And so really take either VDSL, HDSL.

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