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In today's
office or home it is essential that if you wish to use a high speed
internet connection or Voice over the Internet (VOIP) and share
files on a LAN or indeed WAN then your basic network infrastructure
needs to be top notch. IP Digital offer many network infrastructure
solutions including the most cost effective and common which are
listed below:
Category 5 cable, commonly known as Cat 5 or "Cable and Telephone",
is a twisted pair cable type designed for high signal integrity.
Many such cables are unshielded but some are shielded. Category 5
has been superseded by the Category 5e specification. This type of
cable is often used in structured cabling for computer networks such
as Ethernet, and is also used to carry many other signals such as
basic voice services, token ring, and ATM (at up to 155 Mbit/s, over
short distances).
At IP Digital we are leading the way in quality, affordable voice
& data networks.
All Usage and wiring methods
Category 5
The specification for category 5 cable was defined in
ANSI/TIA/EIA-568-A, with clarification in TSB-95. These documents
specified performance characteristics and test requirements for
frequencies of up to 100 MHz.
Category 5 cable includes four twisted pairs in a single cable
jacket. This use of balanced lines helps preserve a high
signal-to-noise ratio despite interference from both external
sources and other pairs (this latter form of interference is called
crosstalk).
It is most commonly used for 100 Mbit/s networks, such as 100BASE-TX
Ethernet, although IEEE 802.3ab defines standards for 1000BASE-T -
Gigabit Ethernet over category 5 cable. Cat 5 cable typically has
three twists per inch of each twisted pair of 24 gauge copper wires
within the cable.
Category 5e
Cat 5e cable is an enhanced version of Cat 5 that adds
specifications for far end crosstalk. It was formally defined in
2001 in the TIA/EIA-568-B standard, which no longer recognizes the
original Cat 5 specification.
Although 1000BASE-T was designed for use with Cat 5 cable, the
tighter specifications associated with Cat 5e cable and connectors
make it an excellent choice for use with 1000BASE-T. Despite the
stricter performance specifications, Cat 5e cable does not enable
longer cable distances for Ethernet networks: cables are still
limited to a maximum of 100 m (328 ft) in length (normal practice is
to limit fixed ("horizontal") cables to 90 m to allow for up to 5 m
of patch cable at each end).
Cat 5e cable performance characteristics and test methods are
defined in TIA/EIA-568-B.2-2001.
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Category 6
Category 6 cable, commonly referred
to as Cat 6, is a cable standard for Gigabit
Ethernet and other network protocols
that is backward compatible with the
Category 5/5e and Category 3
cable standards. Cat-6 features
more stringent specifications for
crosstalk and system noise. The cable
standard provides performance of up
to 250 MHz and is suitable for
10BASE-T / 100BASE-TX and
1000BASE-T (Gigabit Ethernet).
It is expected to suit the
10GBASE-T (10Gigabit Ethernet) standard,
although with limitations on length
if unshielded Cat 6 cable is used.
If you are interested in any
of our Free quotes then
contact us on
0800 5200 536
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