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Internal house cabling idea - will this work?

Wardy
in The Technology Shed

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If a house has internal cabling for a cable internet service, from the main 'junction' box in the front room, upto a 1st floor back bedroom, but the house no longer has the cable internet/TV service enabled, could the existing internal cabling still be used?

I think it can but just wanted to work through my idea.....

If I attach a wired cable router to the termination point in the back bedroom, and put another cable router at the other end, I should be able to get two devices communicating between those two points.... shouldn't I? :)

Networks and 'standard' infrastructure cabling I can understand, but don't do anything with fibre-optic/cable internet services usually. Just contemplating this as a way of saving having to run an internal CAT5 run, especially if pre-existing comms can be used.

Thanks,

Steve.

I can't see why you couldn't use it, but isn't the cable just coax though?

If it was, I'd imagine you'd need something like this to get it to work.

  • Author

OK, my plan was to use an old C&W/NTL router, that has coax and RJ45 connections, that would effectively act as the bridge?

OK, my plan was to use an old C&W/NTL router, that has coax and RJ45 connections, that would effectively act as the bridge?

I've never seen a proper cable router like you get for ADSL. It's always been a seperate modem and router.

I'd imagine you'd have a hard time getting 2 modems to talk to each other. That would probably involve some custom firmware.

  • Author

Yes, this is where my knowledge started to run out, as I was intending to use it for a purpose that it wasn't designed for emoticon-0143-smirk.gif

You're quite right though, thinking about it the only cable internet services I've worked with have a separate modem and router, hmmm.

Did see this - http://goo.gl/Qo7yk - but then wasn't sure on whether I could get data to route properly, if there was one of this type of device at each end of the internal cabling.

I very much doubt you'd be able to do it with 2 modems, not without a lot of research and fettling at least anyway. I guess there is a reason those convertors are £100 each.

I'd be inclined to attach some cat5 to one end of the coax, then pull the cable back through the house.

If its only two devices your connecting Id be inclined to use a Cat5 run but dont forget to put a twist in the cable as without it the pc's/laptops wont talk to each other. If youre ever in the Stoke area give me a shout as part of what I do involves cat5/6/7 and can make you one up foc ;)

  • Author

Cheers. CAT5/6 I have no problems with. I just didn't want to run it if I could avoid it, as it's not the most straightforward route in the world.

If I did run it there would be switches at each stage, so no issues with crossover being required.

Fit cat 6 cable as cat5 is getting phased out soon....well it has been around for ages and is a bit slow compared to cat6, cat7 and cat8!!!! Look on Farnell In One website for cable...or CPC website!!! B)

  • Author

As said, I know my way around the CAT standards. And don't really want this turning into a discussion on what type of cable to use :)

Was just specifically asking if others thought my proposed plan would work. Think I'll test it out with some spare equipment and see what I can get working.

Cheers,

Steve.

As said, I know my way around the CAT standards. And don't really want this turning into a discussion on what type of cable to use :)

Was just specifically asking if others thought my proposed plan would work. Think I'll test it out with some spare equipment and see what I can get working.

Cheers,

Steve.

I'm also interested in this Steve - Please do let me know how you get on. :thumbup:

As said, I know my way around the CAT standards. And don't really want this turning into a discussion on what type of cable to use :)

Was just specifically asking if others thought my proposed plan would work. Think I'll test it out with some spare equipment and see what I can get working.

Cheers,

Steve.

Sorry........what you really need is the really expensive silver coated twisted, individually screened, bla, bla, bla.... :giggle:

On the op.....if you have coax "existing in the wall" from the "cable" setup then this won't work that well for what you want to do......much better off fitting a cat6 cable and getting full termination plugs and sockets (8 or 6 cores...can't remember brains gone). If on the other hand you wanted to use what was connected to the RJ45 that you mention? Do you know what standard of cable this is connected to and the number of cores??? B)

Nope I think you'd be on a hiding-to-nothing trying to get anything running over coax.

Could you use the existing coax to pull through a cat6 cable?

If it's just a straight run one network car to another you'd need to wire the cat5/6 as a crossover or use a switch/hub.

http://www.littlewhitedog.com/content-8.html

Or there is always wireless. Cheap AP set up to act as a bridge with wifi cards in each machine.

Edited by Aspman

Coax Media Bridge seems to be what you need if i've read it correctly:

http://www.dlink.com/products/?pid=668

@fabdavrav CAT5 will be around for a long time yet, rated to 1000meg with not very many desktop / laptops with faster than that NICs (i've not seen any apart from servers) so absolutely no need for even CAT6 in the majority of businesses.

Edited by DaveI

@fabdavrav CAT5 will be around for a long time yet, rated to 1000meg with not very many desktop / laptops with faster than that NICs (i've not seen any apart from servers) so absolutely no need for even CAT6 in the majority of businesses.

Just quoting what I hear in the press in the past 3months thats all.....also cat5E is better than cat5.....but when I was installing my business CCTV I ended up using shielded cat6 cable and plugs due to the closness of mains cables and the fact that it was high def colour and sound....plus it is more "future proof" for upgrades and feeding more info down the line!!!!! B)

  • Author

Thanks for your input Dave. What you've suggested makes sense, but then gets ruled out cost grounds!

Cheers,

Steve

A cable modem is useless without a central UBR to download the config from, in this case a virgin media one.

Thanks for your input Dave. What you've suggested makes sense, but then gets ruled out cost grounds!

Cheers,

Steve

:giggle: ...don't remind me!! not that expensive..I have an account with both Farnell in one and CPC and did the install myself....worked out alot cheaper!!

pack of 5 cat6 sheilded plugs £5.15!

http://cpc.farnell.com/sentinel/111s-0808016c34/rj45-cat-6-plugs-shielded/dp/CN05753?in_merch=Products From This Range&MER=e-bb45-00001003

305m cat6 cable £98

http://cpc.farnell.com/pro-power/cat6305m/cat-6-unshielded-twisted-pair-utp/dp/CB11327

http://uk.farnell.com/belden/7812e-00b100/cable-cat6-utp-grey-100m/dp/1734746

The shieled cat6 cable from farnell is about £1.50/m. B)

  • Author

LOL, thanks - but I'll just get my CAT5e reel out instead :yes:

Thanks for all the replies.

Cheers. CAT5/6 I have no problems with. I just didn't want to run it if I could avoid it, as it's not the most straightforward route in the world.

If I did run it there would be switches at each stage, so no issues with crossover being required.

CAT 5e or 6 will be fine and cat 6 isn't actually cat 6, unless you wire it right, get the bend radii right and terminate the end of it correctly.

Steve, have you thought about securely bonding the cat 5e and coax together and then pull the coax out and the cat5e through with it?

I'm assuming it's full size coax, and if it is, then I'd have thought it would be easy to run the UTP in the same space as it's a smaller cable.

In terms of running ethernet over coax you could always run 10base 2 over it if you can find some really old switches or baluns ;)

  • Author

Thanks Mark. Interesting idea about bonding the CAT5e and pulling it through emoticon-0148-yes.gif

Will give it some thought. Not going to continue looking at using the existing coax though.

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