Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Suggestions for a Coax - Ethernet Solution?

watanabe (27967) writes | more than 4 years ago


watanabe (27967) writes "I just moved from a house with Cat5e wiring to a house with.. A whole bunch of coax cables. Like, my living room has five coax cables coming out of a hole in the wall. All of them go back up to my attic. The house is big, (and I like it, thank you), but I have realized that our digital usage pattern (media server + squeezeboxes + remote time machine backups to a linux box) will not work without wiring. I am currently bridging some old Linksys WRT54Gs to the right places, but of course, that slows everything down. This got me thinking: 100mb ethernet is four wires, yes? And I have four wires for every two coax cables. What about a two coax-head -> ethernet jack setup? Has anyone done this before? Searching online only gives me $100+ coaxethernet transceiver type boxes. At that price, a HomePNY system would make more sense. I'm willing to solder if I have to, but I first wanted to get advice and holes shot in my plan, if there are any."

Sorry! There are no comments related to the filter you selected.

impedance (1)

Spazmania (174582) | more than 4 years ago | (#31187032)

If you use the coax center for t+ and the braided shell for t- it might work. You'd have to be careful not to ground the braid or let it pass near an electrical wire.

However, I'm pretty sure that 75-ohm cable-tv coax is designed more to pass UHF signals than VHF signals. It's centered at 2200 mhz while fast-e signals at 125mhz. On the other hand, 125 mhz is in the middle of the VHF band that generally also passes on 75-ohm coax, so maybe. Try it; worst you do is fry a couple $5 cards.

Bust out the Iron.. (1)

aplumb3000 (1748630) | more than 4 years ago | (#31189888)

I agree with Spazmania. If you're working with 10/100 ether, all you need is one transmit pair of wires and a receive set of wires. The correct signaling wires for 100Mb ethernet transmission cable can be found here: [] You will need to solder a cable to the correct pairs at either end, but it's worth a shot. The freq. spectrum is all off per Spaz's article, but this should work for short distances at least, I would think. I'm almost positive that this won't damage your NIC's as long as you DON'T PLUG THIS INTO A POE DEVICE.
Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?