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Thread ID: 59910 2005-07-16 09:35:00 using unused pairs in cat5 cable personthingy (1670) PC World Chat
Post ID Timestamp Content User
372717 2005-07-16 14:40:00 you could run the cable through some pipe, or alkethene (spelling), that might make it last longer15mm(?) garden hose scraps is something i have a lot of. :) personthingy (1670)
372718 2005-07-16 14:51:00 You can also use the unused pairs to connect up to 2 pcs to the same network connection using this techniqueMy son has a 10Mb network hub for all his toys, which are mainly PCs rebuilt from junk found in skips. We dont need to run more than one "line" for the data, and given the ever decreasing cost of switches, i can see very little reason why people insist on running everything in a network individually back to one central point in a building. I'm just providing access to the net and filestorage for him, plus a phone extension. personthingy (1670)
372719 2005-07-16 15:50:00 You're not supposed to, but in saying that, I've seen a CAT5 cable hung between two buildings cable-tied to a length of conduit for about 10m, in wind and rain, and it worked fine (although a bit slower than it should have been).

Do you have some old garden hose which you could run the cable through? It might give you a bit more piece of mind. When you tack the cable to the underside of the fence railings, it could damage the insulation protecting the cable.

I've managed to get a small 2pc network running on a 2 story by coiling the network cable round a drain pipe and through the windowframe :D 		Edward (31)
372720 2005-07-16 18:58:00 15mm(?) garden hose scraps is something i have a lot of. :)

that should do, as long as it fits of course :p and that there is no leaks in it.... but i would also keep that out of the direct sunlight too 		Prescott (11)
372721 2005-07-16 22:18:00 You can split it for what you want it for. But if you were to be using 100mb you'd need the whole 8 wires. pctek (84)
372722 2005-07-17 00:19:00 splitter? Ok the telephone line will be my PABX, and thats right by the place where the network switch will go. I assume i'll have to carefully sent the phone pairs out to the side while taking care that the computer network pairs are connected as per normal. In the sleepout that will mean having a phone jack right beside the computer jack. At the network switch that will mean having a pair go from the PABX to the same deal as the sleep out, and running a patch lead to the network switch..

Does that make sense or am i opening a can of worms for myself here?
if worms you want ill add some :D
you only need one connection , face plate, jackpoint (which ever name you wish to use) in each location. That where you use the cable spliter, they are colour coded solong as you match the colours when pluging in the phone and pc, your away
this is want tricky dicky has (www.dse.co.nz) 		beama (111)
372723 2005-07-17 01:25:00 You can split it for what you want it for. But if you were to be using 100mb you'd need the whole 8 wires.

Where did you get that idea PT? I run 100Mbs on a single pair network.

I can't see why splitters are required either, you just make the cable longer than you need at the tail and bring the phone pair out to a separate phone outlet. Multiple phones can be connected in star or series-parallel configuration without any special connection systems.

Your network switch takes care of data distribution and that will be automatically be in star configuration, even if you use multiple pairs within the one cable. So long as you leave the individual pairs twisted, they can be left quite long outside the sheath at the termination point.

Keep it simple.

Cheers

Billy 8-{) 		Billy T (70)
372724 2005-07-17 02:37:00 ???? :confused:

OK, just when i thought this was starting to make sense, it gets o so confusing! :o

So lets assume i get a lenth of cat 5 cable cut to lenth with the plugs pre crimped in place . I drag it round the fence line beneath the rails through pipe, garden hose, all manner of things to protect it from the elements and feet . I then take each end and strip the insulation back say 200mm . I then snip back 2 of the pairs (3?) so i can use them for other things, such as the phone extension for the sleepout . I then attach the pairs i wish to divert to the connecter thingy on the PABX at the house end, and 2 a phone jack on the other . The ready crimped RJ45 plugs can go into the 10Mb hub in Ziggys room, and the as yet unbought 100Mb network switch in the house which talks to all the other toys in the house by a less doctored set of RJ45 cables .

Is this a workable concept?

If so . . . . .
Which pairs must stay with the RJ45 prewired plug things?
Which pairs may i safely divert?

Thanks! 		personthingy (1670)
372725 2005-07-17 04:03:00 Where did you get that idea PT? I run 100Mbs on a single pair network.


If you are using category 3 or 4 cables with 100M LANs ANYWHERE you MUST use the 100Base-T4 standard (it uses all 4 pairs, 8 conductors).
From my Krone Master Installers course and work at Akld Uni doing structured cabling.
However these are BIG networks, not your home variety. 		pctek (84)
372726 2005-07-17 04:15:00 When you use Cat5 or better, only two pairs are needed . 100BaseT4 was a short lived "standard" .

For a nicer job, the thinwall black alkatene used for trickle irrigation is quite cheap .

To get a string in to pull the cable through (it does not push in for any length :( ) use a vacuum cleaner . Just tie a piece of rag which will form a "loose" plug in the hose to the string, and suck it through .

The only problem I can see is that ringing on the telephone will possibly put noise on the data pairs . That's why TCP/IP on Ethernet has error checking and repeats of packets . :D You'll never notice .

Pairs to use: it's up to you (as long as you use them in pairs, and use the same pairs at both ends) . I'd use the colour code on the RJ45 to match the colours on pins 1&2, and 3&6 (which are the Ethernet pairs) . . 		Graham L (2)
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