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468 posts

Ultimate Geek

# 165852 22-Feb-2015 22:39
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got a couple of rooms that only have one cat5e to the socket...
is there any reason why i couldnt use the other pairs in the cable for a second/third/fourth outlet on the one cable?

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832 posts

Ultimate Geek

  # 1244473 22-Feb-2015 22:46
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All 4 pairs are required for a 1G connection - two pairs are required for a 10/100mbit connection - so you can make one into two (but slower speed) - if you want to do this dont adjust your wiring but add a data/data RJ45 spliter @ each end.




If you need more than two or want more that one 1G connection then buy a smaller Gigaport switch to put on the end

2386 posts

Uber Geek


  # 1244474 22-Feb-2015 22:47
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Yes it can be done..

100M ethernet uses 2 Pairs so you can run 2 of them over 1 Cable. (so Total of 2 Ethernet Cables)

Below thingy is quite expensive for what it is and can problably make one yourself (


468 posts

Ultimate Geek

  # 1244475 22-Feb-2015 22:54
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cool thanks. just what i was after. the rooms are just bedrooms so not gigabit critical for now. i have the option to run more cables to the other side of the room if i reeeeeeaaaallllly need gigabit in there ( i doubt it)

361 posts

Ultimate Geek

  # 1244478 22-Feb-2015 23:07
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Why not just use a small switch?  Still leaves gigabit on the table.  They're tiny and cheap these days, eg:

822 posts

Ultimate Geek


  # 1244496 23-Feb-2015 00:00
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Yep - a switch is a better option as you can get Gigabit distributed across the ports rather than two instances of 100Mbits with no trade off - which is going to be silly if you have a device using barely 1Mbit of traffic and one screaming out for more than 100Mbit.

Anything I say is the ramblings of an ill informed, opinionated so-and-so, and not representative of any of my past, present or future employers, and is also probably best disregarded.

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