Hi Kevin
"Kevin Bowling" <kevin.bowl
...@kev009.com> wrote in message
...
> OT but I know the ham radio and comms folks here might enlighten me.
> I'm looking to wire up my place with CAT 6A cabling for future 10Gbit
> goodness. I'm leaning toward shielded (well, actually "foiled") cable
> because at the CAT 6A level UTP gets quite thick in diameter vs. FTP and
> looks to be about the same difficulty to install with the vendor I'm
> eyeballing.
> Now to pose a scenario: if I use FTP, I can guarantee one end at the patch
> panel will have a solid ground connection. The far end jack will most
> likely not have a local ground, and it's possible that unshielded patch
> cables might be used.
> I seem to remember that the shield can effectively become a big antenna if
> not done properly. Would the above risk that problem?
that should be the least of your problems, not sure what are you trying to
achieve by using STP, but remember once you shield, it should be all the
way, that include patch cables, switches, plugs, and pc, etc...., they need
to be all at the same earth potential.
- you need to remember earth become hazardous in nature if is not used
properly.
- you will need a separate earth bar for communications only terminated at
the meter box, by a licensed electrician.
- and don't even think about sharing a STP between buildings, not that it
would not works, it become lethal and hazardous in nature including fire.
- the twist in the cable is more than enough to suppress interference, but
if you run into trouble, you can always use ferrite beads.
my advice unless you have a specific need to use STP, you should avoid it.
Moussa
