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-   -   Semi-broken Ethernet cable (https://www.cableforum.uk/board/showthread.php?t=12188)

ian@huth 26-05-2004 12:40

Re: Semi-broken Ethernet cable
 
Quote:

Originally Posted by OldGeezer
I believe a Cat5 cable has 8 wires, only 4 of which are actually used (you can get "ethernet doublers" to use a single cable for two RJ45 outlets). The engineer has presumably used spare good wires to replace the broken ones.

I don't believe that should have any effect on the duplexing.

Yes, only 4 wires are used, pins 1,2,3 and 6 on the connector. Have a look at Robin Walkers site for information on duplex settings. http://homepage.ntlworld.com/robin.d.../ethernet.html

downquark1 26-05-2004 12:45

Re: Semi-broken Ethernet cable
 
Well it's connected through the faulty cable to my linksys router, and I definately get a performance drop with anything above 10mps half duplex and pinging some sites I get packet loss too.

altis 26-05-2004 13:26

Re: Semi-broken Ethernet cable
 
If he's swapped some wires over then perhaps he's used two that are not twisted together as a pair. This will have all sorts of horrible effects including crosstalk between your up and down pair. I'd replace the cable and, while your at it, encase it in some nylon tubing - like they use for pneumatics.

SMHarman 26-05-2004 13:29

Re: Semi-broken Ethernet cable
 
I'm going to ask my dumb question again, but at the road end of your drive is a little black thingy in the road. They attach a coax to that and then run it up the drive to the house, it goes to the grey box on the outside wall, then inside to a cream box then onto a SACM/STB.

Why do you have Cat5 running up your driveway. That would require the SACM to be at the road end of your drive. How would it then be powered etc?

downquark1 26-05-2004 13:33

Re: Semi-broken Ethernet cable
 
Quote:

Originally Posted by SMHarman
I'm going to ask my dumb question again, but at the road end of your drive is a little black thingy in the road. They attach a coax to that and then run it up the drive to the house, it goes to the grey box on the outside wall, then inside to a cream box then onto a SACM/STB.

Why do you have Cat5 running up your driveway. That would require the SACM to be at the road end of your drive. How would it then be powered etc?

It runs across the side of my house, above the drive, how they damaged it I don't know, maybe they rested something heavy upon it.

It then goes up two stories to a converted loft.


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