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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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