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Cable Splitter

Hi there,

We need to add a few more machines to our network and dont have enough ports beside the desks.

If we use these cable splitter things will there be any impact on performance? Any gotchas?

Thanks
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58872
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58872
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3 Solutions
 
Ernie BeekExpertCommented:
Cable splitters? DON'T!

Just use a little switch but don't go messing around with splitters (you won't make many friends with that ;)
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enachemcCommented:
an 100MBit ethernet cable uses 4 wires in an 8 wire cable, so you could make 2 ethernet ports from 1 cable (with no loss whatsoever if properly cabled using pairs of wires)
1GBps uses all 8 wires, so no splitting possible
but the best way would be a switch (I think you'll end up cheaper also).
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mkobrinCommented:
In case you don't like erniebeek's answer, you can use this one:

NEVER EVER, EVER split your cable. Use a switch.

Or this one:

NEVER EVER, EVER, EVER split your cable. Use a switch.

I think erniebeek deserves all the points for this one.
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58872Author Commented:
Thanks for those answers, I see splitters are a firm favourite :)

Enachemc - When you said "with no loss whatsoever if properly cabled using pairs of wires", I thought the idea of the splitter is basically you plug the two fly leads into it. What's there to configure?

BTW, I'm not advocating using these things, I'm trying to prevent them being used but the thing is if we are only running 100mbps and we can use these things without loss of quality then its difficult to counter against there use.
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Ernie BeekExpertCommented:
You can't just put a splitter on a cable/port an expect it to work. The port at your desk is connect to a core/backbone switch port (just one!) so you have to rewire the cable at the other end as well so it can be plugged in two ports (with two pairs of wires per connector and two connectors on a cable). Are you sure you want to mess up your infrastructure like that?

By the way, did I say this allready: DON'T!!!!

;)
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mkobrinCommented:
Even if you are running 100 Mbps, the things to bear in mind are that the pairing and twisting in the cables are specificallly designed to reduce electrical interferance when data is transmitted along these cables, and you may experiance problems as a result.

With 100 Mbps connections, only the 4 insde pins of a RJ45 plug are used, but I would still advocate connecting all the pins, and using a switch, because sometime in the future, you may find yourself upgrading to 1Gbps networking, and then you will not be able to take advantage if this where you have split your cables.
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enachemcCommented:
I meant if you do the wiring yourself
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58872Author Commented:
Many thanks for your replies.
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