slide 1: Understanding the Difference Between Various
Types of 6A Cables
Category 6A cables generally referred to as CAT 6A are becoming
increasingly popular among users because of their transmission
speed which is much better than previous versions like CAT 5e CAT
6 and others. The transmission speed of these cables can go up to
10Gbps and therefore becoming first choice for users of VoIP
CCTV and other data networks. The data transfer is facilitated at
the frequency of 500Mhz.
All categories under it are called CAT 6A under a broad umbrella
but it can be divided into various types depending on various
characteristics. There are basically two primary types of CAT 6A
cables namely - F/UTP and U/UTP. The terms FTP and UTP are to
facilitate differentiation between shielded and unshielded cable.
According to the ISO/IEC standards the first letter indicates the
type of overall shield while the latter points to the type of shielding
on each pair and the balanced element. This by far can be stated
to be the easiest way to differentiate between CAT 6A cables. Let’s
have a look at the different type of combinations that are possible
based on this:
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slide 2: CAT 6A U/UTP
In a CAT 6A U/UTP cable each pair is individually shielded with a
metal foil. The cross talk between pairs is controlled by individual
foil shields so there can be long lays as compared to CAT6A F/UTP.
The long lays between the pairs is easy to untwist and therefore
shortens the termination time. The lower DC resistance in these
cables provides better PoE support. The features of this cable
increase the outer diameter of the cable.
CAT6A F/UTP
In a CAT6A F/UTP cable the unshielded pairs are overall shielded
with a metal foil. The foil shield keeps electrical noise from
interfering with the cable. In these types of cables the crosstalk
between the pairs is controlled by the lay-length of the connection.
Due to this mechanism higher frequencies twist the pairs in small
gaps with each pair having a varied lay. The cable also improves
heat dissipation which minimizes temperature increase is PoE
energized bundled cables.
S/FTP
A cable with twisted pair it has four individually shielded pairs with
an outer screen braid around all its pairs. This cable is considered
from the Category 7 but sometimes is counted to be a part of CAT
6A cables.
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slide 3: Conclusion
Though there can be other differentiations on different basis the
standard distinction is done on this basis only. If you are using
CAT6A cables for any installation you must use a compatible
shielded connector with shielded cables and similarly an unshielded
cable for unshielded connectors. And to choose between shielded
and unshielded cables you need to consider your requirements
along with the consideration of how cost-effective it turns out to
be.
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