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Okay
thanks. I had assumed (before I knew ethernet was balanced) that it
was
for data purposes in electrically noisy environments, so I was confused
then
when it turned out ethernet was balanced after
alll.....
Musical Images tried to make me go for STP when I bought the Linn
stuff
off them.
I
told
them where to go and put in my own UTP at a greatly reduced price.
:D
Speaking of which, where can I get a roll of cheap CAT5 - it was 60
quid
a roll last time I bought, but I've heard 25/30 quid bandied about here a
few
times.
I
will
shortly have some work done on the house that will mean no more opportunity
to
fit CAT5 without having to redecorate too and I'm worried that though I
have
more than I need now, that I have still under estimated future needs -
especially when the KAT5 switcher materialises :)
Am
going to throw in a few more runs before it's too late!
cheers,
Tony
Well - there are a few applications which use the 8 cores separately
rather than as 4 balanced pairs. STP might come in useful there.
Also, it's useful in factory / industrial environments. If you want
cable
to go anywhere near a blast-furnace, say.
I've never seen an application that called for it in a
domestic
/ office environment.
M.
-----Original Message-----
From: BUTLER, Tony,
FM [mailto:tony.butler@xxxxxxx]
Sent: Fri 31/05/2002 12:58
To: 'ukha_d@xxxxxxx'
Cc:
Subject:
RE: [ukha_d] RE: cat5 cable picking up radio ?
Mark,
If
CAT5 is designed for balanced signals, which are (relatively) immune to
interference, what then is the point of screened CAT5?
It's a question I've been meaning to ask for a while (following a
previous discussion about ethernet being balanced) and you've just reminded
me of it.
Any ideas?
Tony
You CAN, if you really feel like it, wrap the CAT5 cable in kitchen
foil, and ground one end, which will help a bit...
... But it's fundamentally a crap way to do it. If you're going to
carry signals over CAT5, then they need to be balanced. The whole point of
balancing is in the rejection of interference (such as shortwave
radio.)
Doesn't matter whether you're talking 10baseT ethernet, 100baseT
ethernet, or KAT5 audio... balancing is the only way to go.
M.
-----Original Message-----
From: Amar Nagi
[mailto:amar@xxxxxxx]
Sent: Fri 31/05/2002 12:37
To: ukha_d@xxxxxxx
Cc:
Subject:
cat5 cable picking up radio ?
I lay as a temporary solution a cat5 cable and i run audio
down
it to the a set of mulitmedia pc speakers in the bedroom.
and for some reason it picks up radio. I can hear
a radio program in the audio.
any ideas ?
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