[ale] OT: Ethernet wiring

[Jim Kinney]

Cat6 will do 10G for short runs under 10 meters. The Cat6e is 10G for the
full run of 300 meters.

Cat5e will do 1G for 300 meters.

Cat5 is 100M for 300m and 1G for 10m.

Cat3 is thermostat wire.

Cat7 is damned expensive and so are all components it connects with. It
will do 100G. Not sure if it's 10m or 300m range.

On Jul 19, 2016 12:33 PM, "DJ-Pfulio" <DJPfulio at jdpfu.com> wrote:

> CAT6 is nice when you need extra shielding, but won't ever do more than
> 1Gbps.  CAT5e has double the requirement to provide 1Gbps.  I bought a
> bunch of CAT6, thinking it would support 10G ethernet over copper. That
> never happened and doesn't look likely today.
>
> So ... if you don't have a reason to have more shielding or thicker
> cables, CAT5e (not just CAT5) is absolutely fine. Save the money.
>
> Can anyone correct me?
>
> On 07/19/2016 12:02 PM, Jim Kinney wrote:
> > Phone wires are NOT CAT5. They are CAT3 at best. Most are not CAT rated
> > at all.  So yes, you can put ethernet signals on them but the speed will
> > be crap AND phone lines are not star topology with a hub/switch. They
> > are all common connector. You might get 1-2 Mbps on phone wires.
> >
> > Get "Plenum Rate Wire" and run real CAT6 through the duckwork and
> > terminate in a socket next to each duck and pull the bundle out of the
> > duct before the furnace (try and use only air return duct). Be sure to
> > seal the holes in the duct with plenum putty that is fire rated
> > (electrical fire putty is fine).
> >
> > Yes, CAT5 has 4 pairs and only 2 are used for 100Mbps. The remaining 2
> > pairs are used in 1Gbps and PoE for GHz ground plane and power.
> >
> > On Tue, 2016-07-19 at 11:36 -0400, Boris Borisov wrote:
> >>
> >> Can I use one cat 5 cable to run two links. Since 4 wires are essential.
> >>
> >> Idea to use existing phone wiring in the house.
> >>
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> > James P. Kinney III
> >
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