In our last blog post we
covered the use of balanced STP (Shielded Twisted Pair) and UTP (Unshielded
Twisted Pair) to minimize the effects of RFI (Radio Frequency Interference) and
EMI (Electromagnetic Interference), along with crosstalk that can take place
between wire pairs carrying dissimilar data.
Because STP is not as
common in today’s networked environment,we’ll reference this discussion on UTP
only. We’ll also look at some of the basic issues with respect to the proper
installation of UTP, such as Category5e, 6, 6e, and 7. This blog article builds
on the information contained in our recent blog articles so be sure to have
them handy if you need to review.
When we speak of
installation with regards to UTP, we’re concerned with the potential for
physical changes. Preserving the integrity of our cable(s) will give our
network the stability and ongoing support it needs to maintain data rates of 1
Gbps (Cat5e) to 10 Gbps (Cat6, 6e, and 7).
The first place to begin
in our effort to avoid problems is in how we install them.
Remove the cable from
the spool or pullbox carefully to avoid twisting and kinking. Either one can
change the outer dimension of the cable as well as how the conductors twist
around one another within it. Kinks can flatten the cable, thus altering its
electrical properties. This can adversely affect performance.
Feed cable trays,
sleeves, and conduits with care to avoid damaging the outer sheath. Lack of
care can also scrape the insulation from one or more conductors within the
jacket causing potential short circuits.
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