Convert Cable internet to fiber optic.

I have a home located 800' from the Mediacom access point at the road. They want to charge me $4000.00 to trench a line to my house. They won't hook up to a line I run myself. So, I'm going to have the install internet in my out building 40' from the pole. Then, hook up to a cable I have run myself. I can do fiber optic for less than $400.00. Cable and conduit. My brother has the end termination equipment, so that's covered.
Will I just need 2 converter boxes (one at each end) and use the Ethernet out of the modem and into the router, or is that just too simple?
Any thoughts?

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Is there any other connection right now?

For example that Mediacom access point. I can't tell what that is. If it's your shed or such then you should have power from your home to that shed and should try powerline networking.

Be aware you will not be able to talk them into installing your own gear there so my bet is you'll have a small shed or such to which they will install your connection and from there complete your last kilometer connection.

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(NT) Powerline networking
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Powerline networking

There is power, but not the same feed as our home. Different accounts, The building is 60' by 28' with an office in the back w/ a computer set up. I'm using a Sprint hot spot for that, and Viasat for internet in our house. Viasat runs me $116.00 a month for "up to 12mps" speed and 150 gigs per month. Mediacom is $40.00 per month for 60 mps and 400 gigs per month, saving me $76.00 per month w/ better service. Satellites are not he most reliable in inclement weather.

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We used these at work

Dozens to choose from and all convert Ethernet to Fibre and back again.
Have Mediacom install their stuff in the shed, feed the modem output to a router and thence to the converter box and the Fibre. At the house end, terminate the fibre in the other converter and go from there. Perhaps a Gigabit switch to go to the rest of the house or the Powerline networking as already mentioned

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I see someone gave up a link for converters.

As long as you can get them to install to your building, the 800 foot run is of course possible BUT there is no known CABLE INTERNET to fiber convertor. You use a cable modem to Ethernet then that to your optic line and back to Ethernet for the end to a router.

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Fiber optic cable

They are coming next Friday to install in the out building. I am ordering fiber line w/ ends already installed for $400.00. Hope my diabolical plot works!

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Now make sure that the ends you ordered

match the ends on the Ethernet to Fibre convertors


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If the router is in the house

would that not preclude the use of Internet in the Shed?
No DHCP, or do I have that incorrect/


Post was last edited on July 2, 2018 2:16 PM PDT

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Split the signal coming in and route to two modems. Cat 5 hard wire in out building. Should work. I hope.

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That would require a second internet account, about double the fees.

But since you want the Internet where they install the equipment then you install the modem and router there.

Then some Ethernet from a LAN port on the router to your optical converter and at the other end from optical to Ethernet which goes to a switched hub of you need a lot of ports and a WAP. (see google) I can also use a "router as a WAP" at the other end.

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Convert Cable internet to fiber optic.

Hi Boz111! I suggest that you contact your service provider, they will be the best trained people to sort this out for you! The conversion needs to be done by a professional, if you have no experience with such installation, you will only mess thing up. All the best and do enjoy your new internet speed!

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Fiber Optic Cable Conversion

It is very simple. Here's what you need:
2 Converters - I used TP Link MC 100 CM
Fiber Optic Cable with SC ends. - I got mine from LANshack on line.
2 RG45 Cables

Modem to converter via RG45. Plug in the two end of the FI cable into the converter. Next, plug in the other end into a second converter. Finally, plug the second RG45 cable into the converter and into your router or directly into your computer.

I have 96 mbs speed coming out of the modem and 90 mbs coming out of the router after a 900' run.
The test note from LANshack showed a -.11 db lose on one line and a .17 lose on the other. I spent $625 on the project that the cable company wanted $4000 to do.

ps: I works fantastic!

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