Network Cable increasingly welcomed by the people. However, the rapid
development of network applications increasing demand for bandwidth. As
technology continues to progress, the introduction of a higher level of
cat 7 to meet most commercial applications.
Define:Cat 7 patch cable
is referred to as Category 7 patch cable, Cat 7 network cabling is used
as a cabling infrastructure for 1000BASE-T (Gigabit Ethernet, or GbE)
and 10GBASE-T (10-Gigabit Ethernet, or 10 GbE) networks. The Cat 7
standard provides performance of up to 600 MHz and can be used up to a
maximum length of 100 meters.
Category 7 cable is able to achieve
higher performance than preceding Ethernet standards such as Cat 5, Cat
5e and Cat 6 by requiring each of its twisted wire pairs to be fully
shielded. This is known as Screen Shielded Twisted Pair (SSTP) or
Screened Foiled Twisted Pair (SFTP) wiring, and it almost completely
eliminates alien crosstalk while significantly improving noise
resistance.
The Cat 7 standard was published in 2002 by the
International Organization for Standardization (ISO) and is also known
as Class F cabling. While more expensive than Cat 5e and Cat 6 cabling,
Cat 7 cabling does have a 15-year lifecycle (compared to estimated
10-year lifecycles for Cat 5e and Cat 6), which helps improve its
overall return on investment (ROI).
Category 7 (Cat7) is the
newest cable standards for Ethernet and other interconnect technologies.
Cat 7 cable was developed with strict specifications on crosstalk and
EMI protection. Cat 7 cable features four individually shielded pairs as
well as an overall cable shield to protect the signals from crosstalk
and EMI. Cat7 cable provides a copper solution for 10-Gigabit Ethernet
at 100 meters.
Category 7 and fibre connector:
Cat7
cable is commonly terminated using a GG45 connector, which is a
connector that it backwards compatible with the 8p8c RJ45 connectors
used on Cat6 or Cat5e cable. The GG45 connector has four additional
conductors that provide support for frequencies of up to 600MHz. The
higher frequencies allow Cat 7 cable to support 10-Gigabit Ethernet.
Cat7 cable may also be terminated using TERA connectors, which were
developed by Siemon™. The TERA connector has a unique footprint and is
not compatible with a standard 8p8c (RJ45) connector. The TERA connector
is also capable of supporting frequencies of up to 600MHz. The ability
to support the higher frequencies allows Cat7 patch cable to carry more
data. This allows Cat 7 patch cable to support Ethernet applications up
to 10-Gigabit Ethernet.
What is the application for a data center?
Cat7 cabling will be used for backbone connections between servers
within a data center. This provides a high-speed interconnect used for
data transfer within the network.
Does this replace fiber?
This provides an alternative to using fiber optic cabling within the
data center. Cat7 cabling will provide similar performance to some fiber
solutions. The cost of equipment that supports copper cabling is
typically less than equipment that supports fiber cabling. Another
advantage is that the copper cabling is not as fragile as fiber cabling.
What's the practical performance difference with Cat5e/6?
Cat7 patch cable is designed to support much higher frequency signals
than Cat5e and Cat6.This allows Cat7 cabling to carry a larger amount of
information. Cat7 cable is also able to better protect the signals
traveling over the cable. The shielding as well as the tighter twists of
the pairs in Cat7 cable lessens the effects of crosstalk and EMI.
Is Cat 7 widely used?
Currently, Cat7 is not widely adopted. Cat5e and Cat6 solutions
sufficiently support the bandwidth requirements of today's data centers,
networks, and end users. Using Cat7 for a connection to a desktop would
be unnecessary because the bandwidth would not be utilized. It may also
be an unnecessary expense for many data center applications for the
same reason. However, as technology advances and requirements increase,
Cat7 cable will become more relevant in the data center and desktop
connections.
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