“Modern” Ethernet over coax











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So, I've just bought a house. It's reasonably new - built in the early '00s. One of the features that got built in was a cable TV drop in every room. The cabling is gorgeous - there's even a wiring cabinet of sorts in a closet where the cables all tie together to the splitter to the outside line.



Of course, my problem is that I only own the one TV. I do, however, own a few computers. What I would love to be able to do is drop a switch in the wiring closet and run 100/1000BASE-T ethernet over the coax in the walls I wouldn't otherwise be using. My fantasy would be if you could get some kind of adapter-plug-thing that would take a coax plug on one side and a cat5/RJ45 plug on the other.



Had anyone else done this? Any suggestions?



(There are a few other options that suggest themselves - first, I could just use the existing cabling channels and re-run cat5 or 6 through the walls. While tempting, that sounds like more work than I really want to put in, so I'm calling that Plan B. Also, I could just scare up a mess of old 10BASE2 cards and run the house on thinnet, all mid-90s style. While I think I'd get major style points for that, I don't think I can get a 10BASE2 adapter for the new laptop. Also, I have all these super-snazzy gigabit adaptors I'd like to be using. And so forth.)










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  • 3




    +1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
    – trolle3000
    Mar 4 '10 at 4:34












  • 10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
    – Mike Scott
    Aug 18 '17 at 6:13















up vote
13
down vote

favorite
6












So, I've just bought a house. It's reasonably new - built in the early '00s. One of the features that got built in was a cable TV drop in every room. The cabling is gorgeous - there's even a wiring cabinet of sorts in a closet where the cables all tie together to the splitter to the outside line.



Of course, my problem is that I only own the one TV. I do, however, own a few computers. What I would love to be able to do is drop a switch in the wiring closet and run 100/1000BASE-T ethernet over the coax in the walls I wouldn't otherwise be using. My fantasy would be if you could get some kind of adapter-plug-thing that would take a coax plug on one side and a cat5/RJ45 plug on the other.



Had anyone else done this? Any suggestions?



(There are a few other options that suggest themselves - first, I could just use the existing cabling channels and re-run cat5 or 6 through the walls. While tempting, that sounds like more work than I really want to put in, so I'm calling that Plan B. Also, I could just scare up a mess of old 10BASE2 cards and run the house on thinnet, all mid-90s style. While I think I'd get major style points for that, I don't think I can get a 10BASE2 adapter for the new laptop. Also, I have all these super-snazzy gigabit adaptors I'd like to be using. And so forth.)










share|improve this question




















  • 3




    +1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
    – trolle3000
    Mar 4 '10 at 4:34












  • 10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
    – Mike Scott
    Aug 18 '17 at 6:13













up vote
13
down vote

favorite
6









up vote
13
down vote

favorite
6






6





So, I've just bought a house. It's reasonably new - built in the early '00s. One of the features that got built in was a cable TV drop in every room. The cabling is gorgeous - there's even a wiring cabinet of sorts in a closet where the cables all tie together to the splitter to the outside line.



Of course, my problem is that I only own the one TV. I do, however, own a few computers. What I would love to be able to do is drop a switch in the wiring closet and run 100/1000BASE-T ethernet over the coax in the walls I wouldn't otherwise be using. My fantasy would be if you could get some kind of adapter-plug-thing that would take a coax plug on one side and a cat5/RJ45 plug on the other.



Had anyone else done this? Any suggestions?



(There are a few other options that suggest themselves - first, I could just use the existing cabling channels and re-run cat5 or 6 through the walls. While tempting, that sounds like more work than I really want to put in, so I'm calling that Plan B. Also, I could just scare up a mess of old 10BASE2 cards and run the house on thinnet, all mid-90s style. While I think I'd get major style points for that, I don't think I can get a 10BASE2 adapter for the new laptop. Also, I have all these super-snazzy gigabit adaptors I'd like to be using. And so forth.)










share|improve this question















So, I've just bought a house. It's reasonably new - built in the early '00s. One of the features that got built in was a cable TV drop in every room. The cabling is gorgeous - there's even a wiring cabinet of sorts in a closet where the cables all tie together to the splitter to the outside line.



Of course, my problem is that I only own the one TV. I do, however, own a few computers. What I would love to be able to do is drop a switch in the wiring closet and run 100/1000BASE-T ethernet over the coax in the walls I wouldn't otherwise be using. My fantasy would be if you could get some kind of adapter-plug-thing that would take a coax plug on one side and a cat5/RJ45 plug on the other.



Had anyone else done this? Any suggestions?



(There are a few other options that suggest themselves - first, I could just use the existing cabling channels and re-run cat5 or 6 through the walls. While tempting, that sounds like more work than I really want to put in, so I'm calling that Plan B. Also, I could just scare up a mess of old 10BASE2 cards and run the house on thinnet, all mid-90s style. While I think I'd get major style points for that, I don't think I can get a 10BASE2 adapter for the new laptop. Also, I have all these super-snazzy gigabit adaptors I'd like to be using. And so forth.)







ethernet adapter wiring coaxial rj-45






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edited Apr 5 '10 at 23:05









quack quixote

35k1086118




35k1086118










asked Aug 3 '09 at 20:40









Electrons_Ahoy

1,87142635




1,87142635








  • 3




    +1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
    – trolle3000
    Mar 4 '10 at 4:34












  • 10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
    – Mike Scott
    Aug 18 '17 at 6:13














  • 3




    +1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
    – trolle3000
    Mar 4 '10 at 4:34












  • 10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
    – Mike Scott
    Aug 18 '17 at 6:13








3




3




+1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
– trolle3000
Mar 4 '10 at 4:34






+1 for the general enthusiasm and for taking us back to the thinnet-Napster-RealPlayer nineties, if just for a second
– trolle3000
Mar 4 '10 at 4:34














10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
– Mike Scott
Aug 18 '17 at 6:13




10BASE2 only runs at 10 Mbit/sec. I doubt you would find its performance satisfactory. It would, for example, take you at least 14 minutes to copy a 1 1GB file over such a network.
– Mike Scott
Aug 18 '17 at 6:13










10 Answers
10






active

oldest

votes

















up vote
8
down vote



accepted










I really think you should go with plan B, as this'll give a lot less problems later on.



It might take some time to install it, but this is only a one-time installation.



Using standard connectors completely makes it easier to ugrade/expand/repair your network later on.



There are some nice connector shields out there that have coax+ethernet connections, enabling you to simply plug in a standard cable anywhere in the house.



also, if you ever want to sell the house, it is worth more, as it has the cables already ;)






share|improve this answer





















  • After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
    – Electrons_Ahoy
    Nov 12 '09 at 18:20


















up vote
9
down vote













Netgear offer 270Mbps Ethernet-over-coax adapters (MCAB1001) for under $200. They can (apparently) coexist with your cable system (if you have one) and provide a 10/100baseT (RJ45) socket to connect to your LAN/computer.



Not sure what the deal is regarding the advertised 270Mbps transfer speed being limited by the 100bT connection though.






share|improve this answer



















  • 2




    Damn. Not cheep, but da-amn.
    – dmckee
    Aug 3 '09 at 21:45










  • Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
    – Electrons_Ahoy
    Nov 12 '09 at 18:19










  • as of today both links are dead.
    – hildred
    Aug 18 '17 at 0:23


















up vote
7
down vote













In addition to what others said:
TV coax is not the same as 10Base2 coax. The former has an impedance of 75 Ohms (at least in Europe); the latter has 50 Ohms.






share|improve this answer



















  • 5




    It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
    – hotei
    Sep 9 '10 at 20:09










  • also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
    – hildred
    Aug 18 '17 at 0:30


















up vote
2
down vote













There is a trade body Moca which has this page with a number of ethernet to coax bridges on it. I think this is what you want. However most of them don't look like they are retail products at the moment.






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  • The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
    – Martijn Heemels
    Aug 4 '09 at 9:07


















up vote
1
down vote













This is not really a serious suggestion...just a dumb, but potentially cool hack.



The cable companies more quite high bandwidth internet activity over 75 ohm coax using only part of the available bandwidth. SO the hardware for this has got to be available, and a standard cable modem is one half of it (and I own two of the things, how about you?). You might even be able to configure several in a peer-to-peer mode with fixed IP address.



Like I said, not serious.






share|improve this answer





















  • Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
    – Electrons_Ahoy
    Nov 12 '09 at 18:17










  • For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
    – hotei
    Sep 9 '10 at 20:14










  • @Electrons_Ahoy some DSL equipment can operate in this fashion...
    – ivanivan
    Nov 24 at 4:55


















up vote
0
down vote













The only option I have seen is a product call TVNet from Coaxsys, but it looks like the product and the company no longer exist. These essentially created an Ethernet transceiver and used some sort of proprietary protocol to communicate over coaxial cable.



Maybe you can find some old units on Ebay.



http://www.hometech.com/techwire/net.html#CX-012000188






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    up vote
    0
    down vote













    There's another alternative that I'm surprised nobody else has mentioned: just install WiFi. If you need multiple connections in one room, you can save on wireless adapters and configure a router running DD-WRT (or your favorite open router firmware) to bridge your wired and wireless networks.



    In some houses, it's not easy to run new cable. If that's the case, you can tape the end of your network cable and the end of a rope to the end of the coax in your wiring closet, then pull on the other end of the coax until the network cable and rope are through. To pull the coax back into place, retape just the rope to the coax then go back to the wiring closet and pull until the coax is back. Note that you may or may not have perfect success with this, depending on whether the holes for the cable are big enough to accommodate both coax and network cable, so it might be best to try it first in a room where you'll never need coax (just in case you can't pull the coax back through from the room to the wiring closet).






    share|improve this answer




























      up vote
      0
      down vote













      There's a cheap solution to your problem that nobody has mentioned so far. The ActionTec that are provided by Verizon implement MoCA, which is a standard that allows IP traffic to coexist with CATV traffic on the same coax. (The speed is good - it should be close to 100baseT wired speed). These routers can be configured in bridge mode, so you can use several of them - you'll need one at each endpoint.



      These devices (ActionTec MI424WR) can be bought very cheaply on eBay; I've seen them as low as $25/each. So it should be possible to do exactly what you want without spending a fortune and without causing any problems with your TV reception.



      More detailed info can be found in these threads:



      http://www.avsforum.com/avs-vb/showthread.php?t=1145636



      http://www.dslreports.com/forum/r17679150-Howto-make-ActionTec-MI424WR-a-network-bridge






      share|improve this answer




























        up vote
        0
        down vote













        Outside of all these fine suggestions, i'd lurk on AT&T UVerse forums and see what you can dig up.



        I just had an install, and the tech tried to use the existing cabling to make my UVerse home net, but we couldn't ever find how to sever from the rest of the building so he just switched to the existing phone networking (forgot to ask if it was cat5).



        So, AT&T folks know how to run home ethernet on normal 'cable' coax.






        share|improve this answer




























          up vote
          0
          down vote













          I'm currently facing the same issue; just that the house is rented and thus I have no plan B.



          For one, there's even a Wikipedia article about Ethernet over Coax. One "popular" (= easy to stumble upon) option seems to be MoCA. It allows speeds up to 2.5 Gbps ... but the devices that I could find (even the ones for 400Mbps) are quite expensive (starting at 70€, Nov 2018). There's also "HomePNA" and "G.Hn" but the devices seem to be similar expensive.



          There's also DOCSIS which AFAIK is used for cable internet (at least in the EU?) but for all that I understand this is absolute overkill for a home installation.



          Far cheaper are "DECA" (DirectTV Ethernet to Coax Adapters) ... these are as cheap as 8$ the unit. The speed seems to be limited to 200 Mbps, though.



          Another option could be to run a Wifi over Coax ... basically buy 2 Wifi adapters with an external antenna (usually RP-SMA) and instead of using the antenna connect it to your coax cable (e.g. via an adapter RP-SMA to F ... less than 10$ for two usually). Here's an older (2006?) website where someone has done this. I'm not sure, but AFAIK you could probably use more than 2 wifi adapters on a single cable .. using the cable instead of air as transmission medium.



          Another more "hackish" solution could be to use Powerline adapters and run them on the Coax cable, similar to how this article describes running Ethernet over a phone cable.






          share|improve this answer





















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            10 Answers
            10






            active

            oldest

            votes








            10 Answers
            10






            active

            oldest

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            active

            oldest

            votes






            active

            oldest

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            up vote
            8
            down vote



            accepted










            I really think you should go with plan B, as this'll give a lot less problems later on.



            It might take some time to install it, but this is only a one-time installation.



            Using standard connectors completely makes it easier to ugrade/expand/repair your network later on.



            There are some nice connector shields out there that have coax+ethernet connections, enabling you to simply plug in a standard cable anywhere in the house.



            also, if you ever want to sell the house, it is worth more, as it has the cables already ;)






            share|improve this answer





















            • After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
              – Electrons_Ahoy
              Nov 12 '09 at 18:20















            up vote
            8
            down vote



            accepted










            I really think you should go with plan B, as this'll give a lot less problems later on.



            It might take some time to install it, but this is only a one-time installation.



            Using standard connectors completely makes it easier to ugrade/expand/repair your network later on.



            There are some nice connector shields out there that have coax+ethernet connections, enabling you to simply plug in a standard cable anywhere in the house.



            also, if you ever want to sell the house, it is worth more, as it has the cables already ;)






            share|improve this answer





















            • After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
              – Electrons_Ahoy
              Nov 12 '09 at 18:20













            up vote
            8
            down vote



            accepted







            up vote
            8
            down vote



            accepted






            I really think you should go with plan B, as this'll give a lot less problems later on.



            It might take some time to install it, but this is only a one-time installation.



            Using standard connectors completely makes it easier to ugrade/expand/repair your network later on.



            There are some nice connector shields out there that have coax+ethernet connections, enabling you to simply plug in a standard cable anywhere in the house.



            also, if you ever want to sell the house, it is worth more, as it has the cables already ;)






            share|improve this answer












            I really think you should go with plan B, as this'll give a lot less problems later on.



            It might take some time to install it, but this is only a one-time installation.



            Using standard connectors completely makes it easier to ugrade/expand/repair your network later on.



            There are some nice connector shields out there that have coax+ethernet connections, enabling you to simply plug in a standard cable anywhere in the house.



            also, if you ever want to sell the house, it is worth more, as it has the cables already ;)







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Aug 3 '09 at 21:19









            alexanderpas

            439313




            439313












            • After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
              – Electrons_Ahoy
              Nov 12 '09 at 18:20


















            • After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
              – Electrons_Ahoy
              Nov 12 '09 at 18:20
















            After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
            – Electrons_Ahoy
            Nov 12 '09 at 18:20




            After doing more research, I have to agree. As teabot points out it can be done - just at $200 a pop. Compared to spending a weekend slinging 50 bucks worth of cat5, I think I'll go with Plan B.
            – Electrons_Ahoy
            Nov 12 '09 at 18:20












            up vote
            9
            down vote













            Netgear offer 270Mbps Ethernet-over-coax adapters (MCAB1001) for under $200. They can (apparently) coexist with your cable system (if you have one) and provide a 10/100baseT (RJ45) socket to connect to your LAN/computer.



            Not sure what the deal is regarding the advertised 270Mbps transfer speed being limited by the 100bT connection though.






            share|improve this answer



















            • 2




              Damn. Not cheep, but da-amn.
              – dmckee
              Aug 3 '09 at 21:45










            • Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
              – Electrons_Ahoy
              Nov 12 '09 at 18:19










            • as of today both links are dead.
              – hildred
              Aug 18 '17 at 0:23















            up vote
            9
            down vote













            Netgear offer 270Mbps Ethernet-over-coax adapters (MCAB1001) for under $200. They can (apparently) coexist with your cable system (if you have one) and provide a 10/100baseT (RJ45) socket to connect to your LAN/computer.



            Not sure what the deal is regarding the advertised 270Mbps transfer speed being limited by the 100bT connection though.






            share|improve this answer



















            • 2




              Damn. Not cheep, but da-amn.
              – dmckee
              Aug 3 '09 at 21:45










            • Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
              – Electrons_Ahoy
              Nov 12 '09 at 18:19










            • as of today both links are dead.
              – hildred
              Aug 18 '17 at 0:23













            up vote
            9
            down vote










            up vote
            9
            down vote









            Netgear offer 270Mbps Ethernet-over-coax adapters (MCAB1001) for under $200. They can (apparently) coexist with your cable system (if you have one) and provide a 10/100baseT (RJ45) socket to connect to your LAN/computer.



            Not sure what the deal is regarding the advertised 270Mbps transfer speed being limited by the 100bT connection though.






            share|improve this answer














            Netgear offer 270Mbps Ethernet-over-coax adapters (MCAB1001) for under $200. They can (apparently) coexist with your cable system (if you have one) and provide a 10/100baseT (RJ45) socket to connect to your LAN/computer.



            Not sure what the deal is regarding the advertised 270Mbps transfer speed being limited by the 100bT connection though.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited May 9 '12 at 15:50









            nik

            48.1k786132




            48.1k786132










            answered Aug 3 '09 at 21:39









            teabot

            7951918




            7951918








            • 2




              Damn. Not cheep, but da-amn.
              – dmckee
              Aug 3 '09 at 21:45










            • Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
              – Electrons_Ahoy
              Nov 12 '09 at 18:19










            • as of today both links are dead.
              – hildred
              Aug 18 '17 at 0:23














            • 2




              Damn. Not cheep, but da-amn.
              – dmckee
              Aug 3 '09 at 21:45










            • Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
              – Electrons_Ahoy
              Nov 12 '09 at 18:19










            • as of today both links are dead.
              – hildred
              Aug 18 '17 at 0:23








            2




            2




            Damn. Not cheep, but da-amn.
            – dmckee
            Aug 3 '09 at 21:45




            Damn. Not cheep, but da-amn.
            – dmckee
            Aug 3 '09 at 21:45












            Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
            – Electrons_Ahoy
            Nov 12 '09 at 18:19




            Wow, those are pretty slick. Still, compare those to the price of vanilla cat5 at monoprice, and the right choice becomes clear.
            – Electrons_Ahoy
            Nov 12 '09 at 18:19












            as of today both links are dead.
            – hildred
            Aug 18 '17 at 0:23




            as of today both links are dead.
            – hildred
            Aug 18 '17 at 0:23










            up vote
            7
            down vote













            In addition to what others said:
            TV coax is not the same as 10Base2 coax. The former has an impedance of 75 Ohms (at least in Europe); the latter has 50 Ohms.






            share|improve this answer



















            • 5




              It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
              – hotei
              Sep 9 '10 at 20:09










            • also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
              – hildred
              Aug 18 '17 at 0:30















            up vote
            7
            down vote













            In addition to what others said:
            TV coax is not the same as 10Base2 coax. The former has an impedance of 75 Ohms (at least in Europe); the latter has 50 Ohms.






            share|improve this answer



















            • 5




              It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
              – hotei
              Sep 9 '10 at 20:09










            • also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
              – hildred
              Aug 18 '17 at 0:30













            up vote
            7
            down vote










            up vote
            7
            down vote









            In addition to what others said:
            TV coax is not the same as 10Base2 coax. The former has an impedance of 75 Ohms (at least in Europe); the latter has 50 Ohms.






            share|improve this answer














            In addition to what others said:
            TV coax is not the same as 10Base2 coax. The former has an impedance of 75 Ohms (at least in Europe); the latter has 50 Ohms.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited Aug 18 '17 at 6:34









            G-Man

            5,539102155




            5,539102155










            answered Aug 4 '09 at 9:39









            Ludwig Weinzierl

            7,38042331




            7,38042331








            • 5




              It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
              – hotei
              Sep 9 '10 at 20:09










            • also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
              – hildred
              Aug 18 '17 at 0:30














            • 5




              It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
              – hotei
              Sep 9 '10 at 20:09










            • also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
              – hildred
              Aug 18 '17 at 0:30








            5




            5




            It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
            – hotei
            Sep 9 '10 at 20:09




            It's a nitpick, but 10baseT is not coax. By definition it's twisted pair (that's what the T at the end stands for). What you're referring to as "10baseT coax" is actually 10base2, a true coax, usually of the RG-58 variety, terminated with BNC connectors.
            – hotei
            Sep 9 '10 at 20:09












            also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
            – hildred
            Aug 18 '17 at 0:30




            also compare 10base5 Ethernet (thicknet) which is also coax and not compatible with either 10base2 or TV
            – hildred
            Aug 18 '17 at 0:30










            up vote
            2
            down vote













            There is a trade body Moca which has this page with a number of ethernet to coax bridges on it. I think this is what you want. However most of them don't look like they are retail products at the moment.






            share|improve this answer





















            • The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
              – Martijn Heemels
              Aug 4 '09 at 9:07















            up vote
            2
            down vote













            There is a trade body Moca which has this page with a number of ethernet to coax bridges on it. I think this is what you want. However most of them don't look like they are retail products at the moment.






            share|improve this answer





















            • The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
              – Martijn Heemels
              Aug 4 '09 at 9:07













            up vote
            2
            down vote










            up vote
            2
            down vote









            There is a trade body Moca which has this page with a number of ethernet to coax bridges on it. I think this is what you want. However most of them don't look like they are retail products at the moment.






            share|improve this answer












            There is a trade body Moca which has this page with a number of ethernet to coax bridges on it. I think this is what you want. However most of them don't look like they are retail products at the moment.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Aug 4 '09 at 8:51









            Jeremy French

            7101616




            7101616












            • The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
              – Martijn Heemels
              Aug 4 '09 at 9:07


















            • The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
              – Martijn Heemels
              Aug 4 '09 at 9:07
















            The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
            – Martijn Heemels
            Aug 4 '09 at 9:07




            The Netgear adapter mentioned here superuser.com/questions/17782/modern-ethernet-over-coax/… appears to be a result of this Moca trade body.
            – Martijn Heemels
            Aug 4 '09 at 9:07










            up vote
            1
            down vote













            This is not really a serious suggestion...just a dumb, but potentially cool hack.



            The cable companies more quite high bandwidth internet activity over 75 ohm coax using only part of the available bandwidth. SO the hardware for this has got to be available, and a standard cable modem is one half of it (and I own two of the things, how about you?). You might even be able to configure several in a peer-to-peer mode with fixed IP address.



            Like I said, not serious.






            share|improve this answer





















            • Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
              – Electrons_Ahoy
              Nov 12 '09 at 18:17










            • For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
              – hotei
              Sep 9 '10 at 20:14










            • @Electrons_Ahoy some DSL equipment can operate in this fashion...
              – ivanivan
              Nov 24 at 4:55















            up vote
            1
            down vote













            This is not really a serious suggestion...just a dumb, but potentially cool hack.



            The cable companies more quite high bandwidth internet activity over 75 ohm coax using only part of the available bandwidth. SO the hardware for this has got to be available, and a standard cable modem is one half of it (and I own two of the things, how about you?). You might even be able to configure several in a peer-to-peer mode with fixed IP address.



            Like I said, not serious.






            share|improve this answer





















            • Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
              – Electrons_Ahoy
              Nov 12 '09 at 18:17










            • For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
              – hotei
              Sep 9 '10 at 20:14










            • @Electrons_Ahoy some DSL equipment can operate in this fashion...
              – ivanivan
              Nov 24 at 4:55













            up vote
            1
            down vote










            up vote
            1
            down vote









            This is not really a serious suggestion...just a dumb, but potentially cool hack.



            The cable companies more quite high bandwidth internet activity over 75 ohm coax using only part of the available bandwidth. SO the hardware for this has got to be available, and a standard cable modem is one half of it (and I own two of the things, how about you?). You might even be able to configure several in a peer-to-peer mode with fixed IP address.



            Like I said, not serious.






            share|improve this answer












            This is not really a serious suggestion...just a dumb, but potentially cool hack.



            The cable companies more quite high bandwidth internet activity over 75 ohm coax using only part of the available bandwidth. SO the hardware for this has got to be available, and a standard cable modem is one half of it (and I own two of the things, how about you?). You might even be able to configure several in a peer-to-peer mode with fixed IP address.



            Like I said, not serious.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Aug 3 '09 at 21:22









            dmckee

            7,02612240




            7,02612240












            • Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
              – Electrons_Ahoy
              Nov 12 '09 at 18:17










            • For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
              – hotei
              Sep 9 '10 at 20:14










            • @Electrons_Ahoy some DSL equipment can operate in this fashion...
              – ivanivan
              Nov 24 at 4:55


















            • Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
              – Electrons_Ahoy
              Nov 12 '09 at 18:17










            • For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
              – hotei
              Sep 9 '10 at 20:14










            • @Electrons_Ahoy some DSL equipment can operate in this fashion...
              – ivanivan
              Nov 24 at 4:55
















            Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
            – Electrons_Ahoy
            Nov 12 '09 at 18:17




            Man, that is a cool idea. Sadly, I've been a DSL man for the last decade, or I might actually give that a whirl.
            – Electrons_Ahoy
            Nov 12 '09 at 18:17












            For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
            – hotei
            Sep 9 '10 at 20:14




            For what it's worth this solution is nearly 30 years old. Look up Sytek cable modems. We networked with them in our office around 1982.
            – hotei
            Sep 9 '10 at 20:14












            @Electrons_Ahoy some DSL equipment can operate in this fashion...
            – ivanivan
            Nov 24 at 4:55




            @Electrons_Ahoy some DSL equipment can operate in this fashion...
            – ivanivan
            Nov 24 at 4:55










            up vote
            0
            down vote













            The only option I have seen is a product call TVNet from Coaxsys, but it looks like the product and the company no longer exist. These essentially created an Ethernet transceiver and used some sort of proprietary protocol to communicate over coaxial cable.



            Maybe you can find some old units on Ebay.



            http://www.hometech.com/techwire/net.html#CX-012000188






            share|improve this answer

























              up vote
              0
              down vote













              The only option I have seen is a product call TVNet from Coaxsys, but it looks like the product and the company no longer exist. These essentially created an Ethernet transceiver and used some sort of proprietary protocol to communicate over coaxial cable.



              Maybe you can find some old units on Ebay.



              http://www.hometech.com/techwire/net.html#CX-012000188






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                The only option I have seen is a product call TVNet from Coaxsys, but it looks like the product and the company no longer exist. These essentially created an Ethernet transceiver and used some sort of proprietary protocol to communicate over coaxial cable.



                Maybe you can find some old units on Ebay.



                http://www.hometech.com/techwire/net.html#CX-012000188






                share|improve this answer












                The only option I have seen is a product call TVNet from Coaxsys, but it looks like the product and the company no longer exist. These essentially created an Ethernet transceiver and used some sort of proprietary protocol to communicate over coaxial cable.



                Maybe you can find some old units on Ebay.



                http://www.hometech.com/techwire/net.html#CX-012000188







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Aug 3 '09 at 21:15









                dlux

                3,03872630




                3,03872630






















                    up vote
                    0
                    down vote













                    There's another alternative that I'm surprised nobody else has mentioned: just install WiFi. If you need multiple connections in one room, you can save on wireless adapters and configure a router running DD-WRT (or your favorite open router firmware) to bridge your wired and wireless networks.



                    In some houses, it's not easy to run new cable. If that's the case, you can tape the end of your network cable and the end of a rope to the end of the coax in your wiring closet, then pull on the other end of the coax until the network cable and rope are through. To pull the coax back into place, retape just the rope to the coax then go back to the wiring closet and pull until the coax is back. Note that you may or may not have perfect success with this, depending on whether the holes for the cable are big enough to accommodate both coax and network cable, so it might be best to try it first in a room where you'll never need coax (just in case you can't pull the coax back through from the room to the wiring closet).






                    share|improve this answer

























                      up vote
                      0
                      down vote













                      There's another alternative that I'm surprised nobody else has mentioned: just install WiFi. If you need multiple connections in one room, you can save on wireless adapters and configure a router running DD-WRT (or your favorite open router firmware) to bridge your wired and wireless networks.



                      In some houses, it's not easy to run new cable. If that's the case, you can tape the end of your network cable and the end of a rope to the end of the coax in your wiring closet, then pull on the other end of the coax until the network cable and rope are through. To pull the coax back into place, retape just the rope to the coax then go back to the wiring closet and pull until the coax is back. Note that you may or may not have perfect success with this, depending on whether the holes for the cable are big enough to accommodate both coax and network cable, so it might be best to try it first in a room where you'll never need coax (just in case you can't pull the coax back through from the room to the wiring closet).






                      share|improve this answer























                        up vote
                        0
                        down vote










                        up vote
                        0
                        down vote









                        There's another alternative that I'm surprised nobody else has mentioned: just install WiFi. If you need multiple connections in one room, you can save on wireless adapters and configure a router running DD-WRT (or your favorite open router firmware) to bridge your wired and wireless networks.



                        In some houses, it's not easy to run new cable. If that's the case, you can tape the end of your network cable and the end of a rope to the end of the coax in your wiring closet, then pull on the other end of the coax until the network cable and rope are through. To pull the coax back into place, retape just the rope to the coax then go back to the wiring closet and pull until the coax is back. Note that you may or may not have perfect success with this, depending on whether the holes for the cable are big enough to accommodate both coax and network cable, so it might be best to try it first in a room where you'll never need coax (just in case you can't pull the coax back through from the room to the wiring closet).






                        share|improve this answer












                        There's another alternative that I'm surprised nobody else has mentioned: just install WiFi. If you need multiple connections in one room, you can save on wireless adapters and configure a router running DD-WRT (or your favorite open router firmware) to bridge your wired and wireless networks.



                        In some houses, it's not easy to run new cable. If that's the case, you can tape the end of your network cable and the end of a rope to the end of the coax in your wiring closet, then pull on the other end of the coax until the network cable and rope are through. To pull the coax back into place, retape just the rope to the coax then go back to the wiring closet and pull until the coax is back. Note that you may or may not have perfect success with this, depending on whether the holes for the cable are big enough to accommodate both coax and network cable, so it might be best to try it first in a room where you'll never need coax (just in case you can't pull the coax back through from the room to the wiring closet).







                        share|improve this answer












                        share|improve this answer



                        share|improve this answer










                        answered Jan 28 '10 at 1:45









                        rob

                        12.2k43979




                        12.2k43979






















                            up vote
                            0
                            down vote













                            There's a cheap solution to your problem that nobody has mentioned so far. The ActionTec that are provided by Verizon implement MoCA, which is a standard that allows IP traffic to coexist with CATV traffic on the same coax. (The speed is good - it should be close to 100baseT wired speed). These routers can be configured in bridge mode, so you can use several of them - you'll need one at each endpoint.



                            These devices (ActionTec MI424WR) can be bought very cheaply on eBay; I've seen them as low as $25/each. So it should be possible to do exactly what you want without spending a fortune and without causing any problems with your TV reception.



                            More detailed info can be found in these threads:



                            http://www.avsforum.com/avs-vb/showthread.php?t=1145636



                            http://www.dslreports.com/forum/r17679150-Howto-make-ActionTec-MI424WR-a-network-bridge






                            share|improve this answer

























                              up vote
                              0
                              down vote













                              There's a cheap solution to your problem that nobody has mentioned so far. The ActionTec that are provided by Verizon implement MoCA, which is a standard that allows IP traffic to coexist with CATV traffic on the same coax. (The speed is good - it should be close to 100baseT wired speed). These routers can be configured in bridge mode, so you can use several of them - you'll need one at each endpoint.



                              These devices (ActionTec MI424WR) can be bought very cheaply on eBay; I've seen them as low as $25/each. So it should be possible to do exactly what you want without spending a fortune and without causing any problems with your TV reception.



                              More detailed info can be found in these threads:



                              http://www.avsforum.com/avs-vb/showthread.php?t=1145636



                              http://www.dslreports.com/forum/r17679150-Howto-make-ActionTec-MI424WR-a-network-bridge






                              share|improve this answer























                                up vote
                                0
                                down vote










                                up vote
                                0
                                down vote









                                There's a cheap solution to your problem that nobody has mentioned so far. The ActionTec that are provided by Verizon implement MoCA, which is a standard that allows IP traffic to coexist with CATV traffic on the same coax. (The speed is good - it should be close to 100baseT wired speed). These routers can be configured in bridge mode, so you can use several of them - you'll need one at each endpoint.



                                These devices (ActionTec MI424WR) can be bought very cheaply on eBay; I've seen them as low as $25/each. So it should be possible to do exactly what you want without spending a fortune and without causing any problems with your TV reception.



                                More detailed info can be found in these threads:



                                http://www.avsforum.com/avs-vb/showthread.php?t=1145636



                                http://www.dslreports.com/forum/r17679150-Howto-make-ActionTec-MI424WR-a-network-bridge






                                share|improve this answer












                                There's a cheap solution to your problem that nobody has mentioned so far. The ActionTec that are provided by Verizon implement MoCA, which is a standard that allows IP traffic to coexist with CATV traffic on the same coax. (The speed is good - it should be close to 100baseT wired speed). These routers can be configured in bridge mode, so you can use several of them - you'll need one at each endpoint.



                                These devices (ActionTec MI424WR) can be bought very cheaply on eBay; I've seen them as low as $25/each. So it should be possible to do exactly what you want without spending a fortune and without causing any problems with your TV reception.



                                More detailed info can be found in these threads:



                                http://www.avsforum.com/avs-vb/showthread.php?t=1145636



                                http://www.dslreports.com/forum/r17679150-Howto-make-ActionTec-MI424WR-a-network-bridge







                                share|improve this answer












                                share|improve this answer



                                share|improve this answer










                                answered Sep 9 '10 at 18:25









                                Roger

                                1,17231128




                                1,17231128






















                                    up vote
                                    0
                                    down vote













                                    Outside of all these fine suggestions, i'd lurk on AT&T UVerse forums and see what you can dig up.



                                    I just had an install, and the tech tried to use the existing cabling to make my UVerse home net, but we couldn't ever find how to sever from the rest of the building so he just switched to the existing phone networking (forgot to ask if it was cat5).



                                    So, AT&T folks know how to run home ethernet on normal 'cable' coax.






                                    share|improve this answer

























                                      up vote
                                      0
                                      down vote













                                      Outside of all these fine suggestions, i'd lurk on AT&T UVerse forums and see what you can dig up.



                                      I just had an install, and the tech tried to use the existing cabling to make my UVerse home net, but we couldn't ever find how to sever from the rest of the building so he just switched to the existing phone networking (forgot to ask if it was cat5).



                                      So, AT&T folks know how to run home ethernet on normal 'cable' coax.






                                      share|improve this answer























                                        up vote
                                        0
                                        down vote










                                        up vote
                                        0
                                        down vote









                                        Outside of all these fine suggestions, i'd lurk on AT&T UVerse forums and see what you can dig up.



                                        I just had an install, and the tech tried to use the existing cabling to make my UVerse home net, but we couldn't ever find how to sever from the rest of the building so he just switched to the existing phone networking (forgot to ask if it was cat5).



                                        So, AT&T folks know how to run home ethernet on normal 'cable' coax.






                                        share|improve this answer












                                        Outside of all these fine suggestions, i'd lurk on AT&T UVerse forums and see what you can dig up.



                                        I just had an install, and the tech tried to use the existing cabling to make my UVerse home net, but we couldn't ever find how to sever from the rest of the building so he just switched to the existing phone networking (forgot to ask if it was cat5).



                                        So, AT&T folks know how to run home ethernet on normal 'cable' coax.







                                        share|improve this answer












                                        share|improve this answer



                                        share|improve this answer










                                        answered Sep 9 '10 at 18:50









                                        Rich Homolka

                                        24.9k64366




                                        24.9k64366






















                                            up vote
                                            0
                                            down vote













                                            I'm currently facing the same issue; just that the house is rented and thus I have no plan B.



                                            For one, there's even a Wikipedia article about Ethernet over Coax. One "popular" (= easy to stumble upon) option seems to be MoCA. It allows speeds up to 2.5 Gbps ... but the devices that I could find (even the ones for 400Mbps) are quite expensive (starting at 70€, Nov 2018). There's also "HomePNA" and "G.Hn" but the devices seem to be similar expensive.



                                            There's also DOCSIS which AFAIK is used for cable internet (at least in the EU?) but for all that I understand this is absolute overkill for a home installation.



                                            Far cheaper are "DECA" (DirectTV Ethernet to Coax Adapters) ... these are as cheap as 8$ the unit. The speed seems to be limited to 200 Mbps, though.



                                            Another option could be to run a Wifi over Coax ... basically buy 2 Wifi adapters with an external antenna (usually RP-SMA) and instead of using the antenna connect it to your coax cable (e.g. via an adapter RP-SMA to F ... less than 10$ for two usually). Here's an older (2006?) website where someone has done this. I'm not sure, but AFAIK you could probably use more than 2 wifi adapters on a single cable .. using the cable instead of air as transmission medium.



                                            Another more "hackish" solution could be to use Powerline adapters and run them on the Coax cable, similar to how this article describes running Ethernet over a phone cable.






                                            share|improve this answer

























                                              up vote
                                              0
                                              down vote













                                              I'm currently facing the same issue; just that the house is rented and thus I have no plan B.



                                              For one, there's even a Wikipedia article about Ethernet over Coax. One "popular" (= easy to stumble upon) option seems to be MoCA. It allows speeds up to 2.5 Gbps ... but the devices that I could find (even the ones for 400Mbps) are quite expensive (starting at 70€, Nov 2018). There's also "HomePNA" and "G.Hn" but the devices seem to be similar expensive.



                                              There's also DOCSIS which AFAIK is used for cable internet (at least in the EU?) but for all that I understand this is absolute overkill for a home installation.



                                              Far cheaper are "DECA" (DirectTV Ethernet to Coax Adapters) ... these are as cheap as 8$ the unit. The speed seems to be limited to 200 Mbps, though.



                                              Another option could be to run a Wifi over Coax ... basically buy 2 Wifi adapters with an external antenna (usually RP-SMA) and instead of using the antenna connect it to your coax cable (e.g. via an adapter RP-SMA to F ... less than 10$ for two usually). Here's an older (2006?) website where someone has done this. I'm not sure, but AFAIK you could probably use more than 2 wifi adapters on a single cable .. using the cable instead of air as transmission medium.



                                              Another more "hackish" solution could be to use Powerline adapters and run them on the Coax cable, similar to how this article describes running Ethernet over a phone cable.






                                              share|improve this answer























                                                up vote
                                                0
                                                down vote










                                                up vote
                                                0
                                                down vote









                                                I'm currently facing the same issue; just that the house is rented and thus I have no plan B.



                                                For one, there's even a Wikipedia article about Ethernet over Coax. One "popular" (= easy to stumble upon) option seems to be MoCA. It allows speeds up to 2.5 Gbps ... but the devices that I could find (even the ones for 400Mbps) are quite expensive (starting at 70€, Nov 2018). There's also "HomePNA" and "G.Hn" but the devices seem to be similar expensive.



                                                There's also DOCSIS which AFAIK is used for cable internet (at least in the EU?) but for all that I understand this is absolute overkill for a home installation.



                                                Far cheaper are "DECA" (DirectTV Ethernet to Coax Adapters) ... these are as cheap as 8$ the unit. The speed seems to be limited to 200 Mbps, though.



                                                Another option could be to run a Wifi over Coax ... basically buy 2 Wifi adapters with an external antenna (usually RP-SMA) and instead of using the antenna connect it to your coax cable (e.g. via an adapter RP-SMA to F ... less than 10$ for two usually). Here's an older (2006?) website where someone has done this. I'm not sure, but AFAIK you could probably use more than 2 wifi adapters on a single cable .. using the cable instead of air as transmission medium.



                                                Another more "hackish" solution could be to use Powerline adapters and run them on the Coax cable, similar to how this article describes running Ethernet over a phone cable.






                                                share|improve this answer












                                                I'm currently facing the same issue; just that the house is rented and thus I have no plan B.



                                                For one, there's even a Wikipedia article about Ethernet over Coax. One "popular" (= easy to stumble upon) option seems to be MoCA. It allows speeds up to 2.5 Gbps ... but the devices that I could find (even the ones for 400Mbps) are quite expensive (starting at 70€, Nov 2018). There's also "HomePNA" and "G.Hn" but the devices seem to be similar expensive.



                                                There's also DOCSIS which AFAIK is used for cable internet (at least in the EU?) but for all that I understand this is absolute overkill for a home installation.



                                                Far cheaper are "DECA" (DirectTV Ethernet to Coax Adapters) ... these are as cheap as 8$ the unit. The speed seems to be limited to 200 Mbps, though.



                                                Another option could be to run a Wifi over Coax ... basically buy 2 Wifi adapters with an external antenna (usually RP-SMA) and instead of using the antenna connect it to your coax cable (e.g. via an adapter RP-SMA to F ... less than 10$ for two usually). Here's an older (2006?) website where someone has done this. I'm not sure, but AFAIK you could probably use more than 2 wifi adapters on a single cable .. using the cable instead of air as transmission medium.



                                                Another more "hackish" solution could be to use Powerline adapters and run them on the Coax cable, similar to how this article describes running Ethernet over a phone cable.







                                                share|improve this answer












                                                share|improve this answer



                                                share|improve this answer










                                                answered Nov 24 at 1:45









                                                Daniel Jour

                                                185129




                                                185129






























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