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If you get the chance, always run more extra network fiber cabling

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131–140 of 250 posts

Re: If you get the chance, always run more extra network fiber cabling

#132

No mention in the article of making sure to run conduit , so you can always add more cables easily.

Well, conduit plus multi-cell innerduct to make it easy.

First I've heard of this! What's the advantage, in your experience?

Re: If you get the chance, always run more extra network fiber cabling

#133
post #72

Earlier quoted context omitted.

You don't need an expensive switch. Five port 2.5G + SFP+ with poe can be pretty affordable and shouldn't run very hot.

That downgrades transfer speeds though to just 2.5G.

The devices attached to the 2.5G switch, will be limited to 2.5G per connected port. There won't be any slow down on any other connections. If you still want 10G in the basement, put in a 10G SFP+ switch (they can be had for $15-20 per port and use DACs to control the heat some). You'll only have one shared 10Gbps to the rest of the house, but that is really unlikely to be saturated.

Re: If you get the chance, always run more extra network fiber cabling

#134

Earlier quoted context omitted.

Duct capacity is finite, but fiber cables are tiny and they are very nearly free compared to the cost of having them run.

Not quite tiny - a basic armored (rats !) 12 strands cable may be around 10-15 millimeters, whereas similarly specced cables in the 500 strands range might reach 20-30 mm. In crowded Paris downtown, it adds up fast. On the countryside, that is a lot more weight to hang on poles.

    > Paris downtown
Where is downtown Paris? 1/2/3 arrondissement? I never heard the term used for Paris. Mostly, it is used to describe the Wall Street area of Manhattan (NYC) as the island is relatively north-south and Wall Street is on the southern end.

Re: If you get the chance, always run more extra network fiber cabling

#135
post #8

1. High-level, the post is all wrong. The point should be that you always need to make sure you can pull new cable . The poster illustrates this: single mode, multi mode, non-fiber, etc, etc. And if one "goes bad", you still can't run a new one, unless you have a pullstring. 2. The post cannot apply to fast/large networks - will be prohibitively expensive. 3. If running a few at home, I suggest to run MTP/MPO. It's b…

    > If running a few at home, I suggest to run ... that can have around 12 fibers in them, plenty of future expansion.
What kind of home network needs 12 fibers on a single run!?

Re: If you get the chance, always run more extra network fiber cabling

#136
post #94

No mention in the article of making sure to run conduit , so you can always add more cables easily.

It should mention conduit for sure, but sometimes conduit is hard if you want to stick to the rule of no more than 180 degrees of bend in the line (and no more than 90 at one bend). Long conduit runs need junction boxes at some of of the bends, and it's hard to always make those accessible.

I thought you were allowed 4 90 degree bends, or 360 degrees between boxes.

Re: If you get the chance, always run more extra network fiber cabling

#137
post #94

Earlier quoted context omitted.

It should mention conduit for sure, but sometimes conduit is hard if you want to stick to the rule of no more than 180 degrees of bend in the line (and no more than 90 at one bend). Long conduit runs need junction boxes at some of of the bends, and it's hard to always make those accessible.

I thought you were allowed 4 90 degree bends, or 360 degrees between boxes.

Code allows up to 360 degrees, but it gets really hard to pull after 180.

Re: If you get the chance, always run more extra network fiber cabling

#138

Earlier quoted context omitted.

> Only a single ethernet port in the basement. Then the kid wanted a gaming station and we moved where the TV was. I should have put like 4 down there. Just drop a switch down there.

I have, but now I have cable running along the base boards. That isn't optimal. Also I have 10G networking, so the ethernet switches are hot and expensive.

    > Also I have 10G networking, so the ethernet switches are hot and expensive.
I never understand why anyone needs anything faster than 1G (other than to flex for Internet points). Seriously, how often do you need to move data faster than 100MB/s? Almost never. FYI: A 2.5G switch should be fine. There are many fan-less options here: https://www.servethehome.com/the-ultimate-cheap-2-5gbe-switc...

Re: If you get the chance, always run more extra network fiber cabling

#139
post #4

Yup, always run extra everything. At least you can splice fiber now. And be careful of the minimum bend radius. Once, in the 90s, we were having intermittent network failures in our data center. I kept trying to troubleshoot it with the fluke, but the problem kept moving. When I pulled up the raised floor, I discovered that rats were eating the exterior sheath of the network cables. That was some fun troubleshooting!

"And be careful of the minimum bend radius."

The minimum bend radius of any good fiber is way less than cat6 at this point.

G.657A1/B1 = 10mm

G.657A2/B2 = 7.5mm

G.657A3/B3= 2.5mm

CAT6 = 25mm

Flexible cat6 = 15mm.

Fiber surpassed copper for flexibility almost 2 decades ago (G.657 was introduced in 2006, but let's call it 5 years before all forms became common).

Even G.652 was only 25mm and standardized in 1984.

Re: If you get the chance, always run more extra network fiber cabling

#140
post #4

Yup, always run extra everything. At least you can splice fiber now. And be careful of the minimum bend radius. Once, in the 90s, we were having intermittent network failures in our data center. I kept trying to troubleshoot it with the fluke, but the problem kept moving. When I pulled up the raised floor, I discovered that rats were eating the exterior sheath of the network cables. That was some fun troubleshooting!

Have fusion splicers come down in price? Can you recommend any?

You don't need them unless you are running a mile or two of fiber - mechanical fast connectors (IE no polish, etc) are less than 0.3db loss at this point.

Fusion splicing will still be 0.01db or better, but you will be well within the power budget of any transceiver you find with mechanical connectors, if we are talking home networking - even a 2km 10gb transceiver that is 20 bucks has a 6db power budget.

Heck, the 10km are cheaper than 2km at this point - 17bucks on amazon, power budget of 16db.

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