LAN and Telecom Cabling 10BaseT over RG6 Coax
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Subject Author Date
10BaseT over RG6 Coax Bob Simon 07-31-08
Posted by Bob Simon on July 31, 2008, 11:19 am
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I've switched my Internet service from Cox Cable to AT&T DSL and now
want to extend my local ethernet from my upstairs office to the living
room downstairs. Rather than running a new Cat5 cable outside the
house, I see that the existing obsolete RG6 (75 ohm) Internet cable
runs *exactly* where I need to go. Is there some kind of passive
transformer that will let me run 10BaseT over this?

I know that years ago Thinnet Ethernet was run over RG58 (50 ohm)
terminated by 10Base2 repeaters. I'm not sure it makes sense to go
this route. Even if I could use RG6 for this application (will it
work?), I think I'd rather run new outdoor Cat5 than buy a couple of
these repeaters and pay for the electricity they use 24 hours a day
for as long as I live in this house.

Posted by Doug McIntyre on July 31, 2008, 1:03 pm
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>I've switched my Internet service from Cox Cable to AT&T DSL and now
>want to extend my local ethernet from my upstairs office to the living
>room downstairs. Rather than running a new Cat5 cable outside the
>house, I see that the existing obsolete RG6 (75 ohm) Internet cable
>runs *exactly* where I need to go. Is there some kind of passive
>transformer that will let me run 10BaseT over this?

>I know that years ago Thinnet Ethernet was run over RG58 (50 ohm)
>terminated by 10Base2 repeaters. I'm not sure it makes sense to go
>this route. Even if I could use RG6 for this application (will it
>work?), I think I'd rather run new outdoor Cat5 than buy a couple of
>these repeaters and pay for the electricity they use 24 hours a day
>for as long as I live in this house.


Yes, there are some coax balun/hybrid solutions. Ie. see

http://www.etslan.com/Ethernet.htm

But almost everybody would just do wifi between the two locations..

Power line networking or phone line networking stuff also exists.




Posted by Bob Simon on July 31, 2008, 3:46 pm
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>>I've switched my Internet service from Cox Cable to AT&T DSL and now
>>want to extend my local ethernet from my upstairs office to the living
>>room downstairs. Rather than running a new Cat5 cable outside the
>>house, I see that the existing obsolete RG6 (75 ohm) Internet cable
>>runs *exactly* where I need to go. Is there some kind of passive
>>transformer that will let me run 10BaseT over this?
>
>>I know that years ago Thinnet Ethernet was run over RG58 (50 ohm)
>>terminated by 10Base2 repeaters. I'm not sure it makes sense to go
>>this route. Even if I could use RG6 for this application (will it
>>work?), I think I'd rather run new outdoor Cat5 than buy a couple of
>>these repeaters and pay for the electricity they use 24 hours a day
>>for as long as I live in this house.
>
>
>Yes, there are some coax balun/hybrid solutions. Ie. see
>
>http://www.etslan.com/Ethernet.htm
>
>But almost everybody would just do wifi between the two locations..
>
>Power line networking or phone line networking stuff also exists.
>
>

Thanks for the link to the ETS balun.

I'm already using a booster and longer antenna but the signal
downstairs is weak. I think I'm going to have to either use the old
coax or install new outdoor Cat5.

BTW, if I have a good strong WiFi signal, will I be able to blast
through the noise created while the microwave oven is on and continue
surfing?

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